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android / platform / prebuilts / fullsdk / sources / android-28 / 46c77c203439b3b37c99d09e326df4b1fe08c10b / . / com / android / server / am / ActivityManagerService.java
blob: f2e049325497fa2b098b10a7a1aec72ccfdfb0a0 [file] [log] [blame]
/*
* Copyright (C) 2006-2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.server.am;
import static android.Manifest.permission.CHANGE_CONFIGURATION;
import static android.Manifest.permission.CHANGE_DEVICE_IDLE_TEMP_WHITELIST;
import static android.Manifest.permission.INTERACT_ACROSS_USERS;
import static android.Manifest.permission.INTERACT_ACROSS_USERS_FULL;
import static android.Manifest.permission.INTERNAL_SYSTEM_WINDOW;
import static android.Manifest.permission.MANAGE_ACTIVITY_STACKS;
import static android.Manifest.permission.READ_FRAME_BUFFER;
import static android.Manifest.permission.REMOVE_TASKS;
import static android.Manifest.permission.START_TASKS_FROM_RECENTS;
import static android.app.ActivityManager.DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT;
import static android.app.ActivityManager.LOCK_TASK_MODE_NONE;
import static android.app.ActivityManager.RESIZE_MODE_PRESERVE_WINDOW;
import static android.app.ActivityManager.StackId.INVALID_STACK_ID;
import static android.app.WindowConfiguration.ACTIVITY_TYPE_STANDARD;
import static android.app.WindowConfiguration.ACTIVITY_TYPE_UNDEFINED;
import static android.app.WindowConfiguration.WINDOWING_MODE_FREEFORM;
import static android.app.WindowConfiguration.WINDOWING_MODE_FULLSCREEN;
import static android.app.WindowConfiguration.WINDOWING_MODE_FULLSCREEN_OR_SPLIT_SCREEN_SECONDARY;
import static android.app.WindowConfiguration.WINDOWING_MODE_PINNED;
import static android.app.WindowConfiguration.WINDOWING_MODE_SPLIT_SCREEN_PRIMARY;
import static android.app.WindowConfiguration.WINDOWING_MODE_UNDEFINED;
import static android.content.pm.PackageManager.FEATURE_ACTIVITIES_ON_SECONDARY_DISPLAYS;
import static android.content.pm.PackageManager.FEATURE_FREEFORM_WINDOW_MANAGEMENT;
import static android.content.pm.PackageManager.FEATURE_LEANBACK_ONLY;
import static android.content.pm.PackageManager.FEATURE_PICTURE_IN_PICTURE;
import static android.content.pm.PackageManager.GET_PROVIDERS;
import static android.content.pm.PackageManager.MATCH_ANY_USER;
import static android.content.pm.PackageManager.MATCH_DEBUG_TRIAGED_MISSING;
import static android.content.pm.PackageManager.MATCH_DIRECT_BOOT_AWARE;
import static android.content.pm.PackageManager.MATCH_DIRECT_BOOT_UNAWARE;
import static android.content.pm.PackageManager.MATCH_SYSTEM_ONLY;
import static android.content.pm.PackageManager.MATCH_UNINSTALLED_PACKAGES;
import static android.content.pm.PackageManager.PERMISSION_GRANTED;
import static android.content.res.Configuration.UI_MODE_TYPE_TELEVISION;
import static android.net.NetworkPolicyManager.isProcStateAllowedWhileIdleOrPowerSaveMode;
import static android.net.NetworkPolicyManager.isProcStateAllowedWhileOnRestrictBackground;
import static android.os.Build.VERSION_CODES.N;
import static android.os.IServiceManager.DUMP_FLAG_PRIORITY_CRITICAL;
import static android.os.IServiceManager.DUMP_FLAG_PRIORITY_HIGH;
import static android.os.IServiceManager.DUMP_FLAG_PRIORITY_NORMAL;
import static android.os.IServiceManager.DUMP_FLAG_PROTO;
import static android.os.Process.BLUETOOTH_UID;
import static android.os.Process.FIRST_APPLICATION_UID;
import static android.os.Process.FIRST_ISOLATED_UID;
import static android.os.Process.LAST_ISOLATED_UID;
import static android.os.Process.NFC_UID;
import static android.os.Process.PHONE_UID;
import static android.os.Process.PROC_CHAR;
import static android.os.Process.PROC_OUT_LONG;
import static android.os.Process.PROC_PARENS;
import static android.os.Process.PROC_SPACE_TERM;
import static android.os.Process.ProcessStartResult;
import static android.os.Process.ROOT_UID;
import static android.os.Process.SCHED_FIFO;
import static android.os.Process.SCHED_OTHER;
import static android.os.Process.SCHED_RESET_ON_FORK;
import static android.os.Process.SHELL_UID;
import static android.os.Process.SIGNAL_QUIT;
import static android.os.Process.SIGNAL_USR1;
import static android.os.Process.SYSTEM_UID;
import static android.os.Process.THREAD_GROUP_BG_NONINTERACTIVE;
import static android.os.Process.THREAD_GROUP_DEFAULT;
import static android.os.Process.THREAD_GROUP_TOP_APP;
import static android.os.Process.THREAD_PRIORITY_BACKGROUND;
import static android.os.Process.THREAD_PRIORITY_FOREGROUND;
import static android.os.Process.getFreeMemory;
import static android.os.Process.getTotalMemory;
import static android.os.Process.isThreadInProcess;
import static android.os.Process.killProcess;
import static android.os.Process.killProcessQuiet;
import static android.os.Process.myPid;
import static android.os.Process.myUid;
import static android.os.Process.readProcFile;
import static android.os.Process.removeAllProcessGroups;
import static android.os.Process.sendSignal;
import static android.os.Process.setProcessGroup;
import static android.os.Process.setThreadPriority;
import static android.os.Process.setThreadScheduler;
import static android.os.Process.startWebView;
import static android.os.Process.zygoteProcess;
import static android.provider.Settings.Global.ALWAYS_FINISH_ACTIVITIES;
import static android.provider.Settings.Global.DEBUG_APP;
import static android.provider.Settings.Global.DEVELOPMENT_ENABLE_FREEFORM_WINDOWS_SUPPORT;
import static android.provider.Settings.Global.DEVELOPMENT_FORCE_RESIZABLE_ACTIVITIES;
import static android.provider.Settings.Global.DEVELOPMENT_FORCE_RTL;
import static android.provider.Settings.Global.NETWORK_ACCESS_TIMEOUT_MS;
import static android.provider.Settings.Global.WAIT_FOR_DEBUGGER;
import static android.provider.Settings.System.FONT_SCALE;
import static android.service.voice.VoiceInteractionSession.SHOW_SOURCE_APPLICATION;
import static android.text.format.DateUtils.DAY_IN_MILLIS;
import static android.view.Display.DEFAULT_DISPLAY;
import static android.view.Display.INVALID_DISPLAY;
import static com.android.internal.util.XmlUtils.readBooleanAttribute;
import static com.android.internal.util.XmlUtils.readIntAttribute;
import static com.android.internal.util.XmlUtils.readLongAttribute;
import static com.android.internal.util.XmlUtils.writeBooleanAttribute;
import static com.android.internal.util.XmlUtils.writeIntAttribute;
import static com.android.internal.util.XmlUtils.writeLongAttribute;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_ALL;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_ANR;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_BACKGROUND_CHECK;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_BACKUP;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_BROADCAST;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_BROADCAST_BACKGROUND;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_BROADCAST_LIGHT;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_CLEANUP;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_CONFIGURATION;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_FOCUS;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_IMMERSIVE;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_LOCKTASK;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_LRU;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_MU;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_NETWORK;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_OOM_ADJ;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_OOM_ADJ_REASON;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_PERMISSIONS_REVIEW;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_POWER;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_PROCESSES;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_PROCESS_OBSERVERS;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_PROVIDER;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_PSS;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_SERVICE;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_STACK;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_SWITCH;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_TASKS;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_UID_OBSERVERS;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_URI_PERMISSION;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_USAGE_STATS;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_VISIBILITY;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_WHITELISTS;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_BACKUP;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_BROADCAST;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_CLEANUP;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_CONFIGURATION;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_FOCUS;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_IMMERSIVE;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_LOCKTASK;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_LRU;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_MU;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_NETWORK;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_OOM_ADJ;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_POWER;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_PROCESSES;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_PROCESS_OBSERVERS;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_PROVIDER;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_PSS;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_RECENTS;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_SERVICE;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_STACK;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_SWITCH;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_UID_OBSERVERS;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_URI_PERMISSION;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_VISIBILITY;
import static com.android.server.am.ActivityManagerDebugConfig.TAG_AM;
import static com.android.server.am.ActivityManagerDebugConfig.TAG_WITH_CLASS_NAME;
import static com.android.server.am.ActivityStackSupervisor.DEFER_RESUME;
import static com.android.server.am.ActivityStackSupervisor.MATCH_TASK_IN_STACKS_ONLY;
import static com.android.server.am.ActivityStackSupervisor.MATCH_TASK_IN_STACKS_OR_RECENT_TASKS;
import static com.android.server.am.ActivityStackSupervisor.ON_TOP;
import static com.android.server.am.ActivityStackSupervisor.PRESERVE_WINDOWS;
import static com.android.server.am.ActivityStackSupervisor.REMOVE_FROM_RECENTS;
import static com.android.server.am.TaskRecord.INVALID_TASK_ID;
import static com.android.server.am.TaskRecord.LOCK_TASK_AUTH_DONT_LOCK;
import static com.android.server.am.TaskRecord.REPARENT_KEEP_STACK_AT_FRONT;
import static com.android.server.am.TaskRecord.REPARENT_LEAVE_STACK_IN_PLACE;
import static com.android.server.wm.AppTransition.TRANSIT_ACTIVITY_OPEN;
import static com.android.server.wm.AppTransition.TRANSIT_NONE;
import static com.android.server.wm.AppTransition.TRANSIT_TASK_IN_PLACE;
import static com.android.server.wm.AppTransition.TRANSIT_TASK_OPEN;
import static com.android.server.wm.AppTransition.TRANSIT_TASK_TO_FRONT;
import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT;
import static org.xmlpull.v1.XmlPullParser.START_TAG;
import android.Manifest;
import android.Manifest.permission;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.annotation.UserIdInt;
import android.app.Activity;
import android.app.ActivityManager;
import android.app.ActivityManager.RunningTaskInfo;
import android.app.ActivityManager.StackInfo;
import android.app.ActivityManager.TaskSnapshot;
import android.app.ActivityManagerInternal;
import android.app.ActivityManagerInternal.SleepToken;
import android.app.ActivityOptions;
import android.app.ActivityThread;
import android.app.AlertDialog;
import android.app.AppGlobals;
import android.app.AppOpsManager;
import android.app.ApplicationErrorReport;
import android.app.ApplicationThreadConstants;
import android.app.BroadcastOptions;
import android.app.ContentProviderHolder;
import android.app.Dialog;
import android.app.IActivityController;
import android.app.IActivityManager;
import android.app.IApplicationThread;
import android.app.IInstrumentationWatcher;
import android.app.INotificationManager;
import android.app.IProcessObserver;
import android.app.IServiceConnection;
import android.app.IStopUserCallback;
import android.app.ITaskStackListener;
import android.app.IUiAutomationConnection;
import android.app.IUidObserver;
import android.app.IUserSwitchObserver;
import android.app.Instrumentation;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.PictureInPictureParams;
import android.app.ProfilerInfo;
import android.app.RemoteAction;
import android.app.WaitResult;
import android.app.WindowConfiguration.ActivityType;
import android.app.WindowConfiguration.WindowingMode;
import android.app.admin.DevicePolicyManager;
import android.app.assist.AssistContent;
import android.app.assist.AssistStructure;
import android.app.backup.IBackupManager;
import android.app.usage.UsageEvents;
import android.app.usage.UsageStatsManagerInternal;
import android.appwidget.AppWidgetManager;
import android.content.ActivityNotFoundException;
import android.content.BroadcastReceiver;
import android.content.ClipData;
import android.content.ComponentCallbacks2;
import android.content.ComponentName;
import android.content.ContentProvider;
import android.content.ContentResolver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.IContentProvider;
import android.content.IIntentReceiver;
import android.content.IIntentSender;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.ActivityInfo;
import android.content.pm.ApplicationInfo;
import android.content.pm.ConfigurationInfo;
import android.content.pm.IPackageDataObserver;
import android.content.pm.IPackageManager;
import android.content.pm.InstrumentationInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManagerInternal;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.pm.ParceledListSlice;
import android.content.pm.PathPermission;
import android.content.pm.PermissionInfo;
import android.content.pm.ProviderInfo;
import android.content.pm.ResolveInfo;
import android.content.pm.SELinuxUtil;
import android.content.pm.ServiceInfo;
import android.content.pm.UserInfo;
import android.content.res.CompatibilityInfo;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.database.ContentObserver;
import android.graphics.Bitmap;
import android.graphics.Point;
import android.graphics.Rect;
import android.location.LocationManager;
import android.media.audiofx.AudioEffect;
import android.metrics.LogMaker;
import android.net.Proxy;
import android.net.ProxyInfo;
import android.net.Uri;
import android.os.BatteryStats;
import android.os.Binder;
import android.os.Build;
import android.os.Bundle;
import android.os.Debug;
import android.os.DropBoxManager;
import android.os.Environment;
import android.os.FactoryTest;
import android.os.FileObserver;
import android.os.FileUtils;
import android.os.Handler;
import android.os.IBinder;
import android.os.IDeviceIdentifiersPolicyService;
import android.os.IPermissionController;
import android.os.IProcessInfoService;
import android.os.IProgressListener;
import android.os.LocaleList;
import android.os.Looper;
import android.os.Message;
import android.os.Parcel;
import android.os.ParcelFileDescriptor;
import android.os.PersistableBundle;
import android.os.PowerManager;
import android.os.PowerManagerInternal;
import android.os.Process;
import android.os.RemoteCallbackList;
import android.os.RemoteException;
import android.os.ResultReceiver;
import android.os.ServiceManager;
import android.os.ShellCallback;
import android.os.StrictMode;
import android.os.SystemClock;
import android.os.SystemProperties;
import android.os.Trace;
import android.os.TransactionTooLargeException;
import android.os.UpdateLock;
import android.os.UserHandle;
import android.os.UserManager;
import android.os.WorkSource;
import android.os.storage.IStorageManager;
import android.os.storage.StorageManager;
import android.os.storage.StorageManagerInternal;
import android.provider.Downloads;
import android.provider.Settings;
import android.service.voice.IVoiceInteractionSession;
import android.service.voice.VoiceInteractionManagerInternal;
import android.service.voice.VoiceInteractionSession;
import android.telecom.TelecomManager;
import android.text.TextUtils;
import android.text.format.DateUtils;
import android.text.format.Time;
import android.text.style.SuggestionSpan;
import android.util.ArrayMap;
import android.util.ArraySet;
import android.util.AtomicFile;
import android.util.StatsLog;
import android.util.TimingsTraceLog;
import android.util.DebugUtils;
import android.util.DisplayMetrics;
import android.util.EventLog;
import android.util.Log;
import android.util.Pair;
import android.util.PrintWriterPrinter;
import android.util.Slog;
import android.util.SparseArray;
import android.util.SparseIntArray;
import android.util.TimeUtils;
import android.util.Xml;
import android.util.proto.ProtoOutputStream;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.WindowManager;
import com.android.internal.R;
import com.android.internal.annotations.GuardedBy;
import com.android.internal.annotations.VisibleForTesting;
import com.android.internal.app.AssistUtils;
import com.android.internal.app.DumpHeapActivity;
import com.android.internal.app.IAppOpsCallback;
import com.android.internal.app.IAppOpsService;
import com.android.internal.app.IVoiceInteractor;
import com.android.internal.app.ProcessMap;
import com.android.internal.app.SystemUserHomeActivity;
import com.android.internal.app.procstats.ProcessStats;
import com.android.internal.logging.MetricsLogger;
import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
import com.android.internal.messages.nano.SystemMessageProto.SystemMessage;
import com.android.internal.notification.SystemNotificationChannels;
import com.android.internal.os.BackgroundThread;
import com.android.internal.os.BatteryStatsImpl;
import com.android.internal.os.BinderInternal;
import com.android.internal.os.IResultReceiver;
import com.android.internal.os.ProcessCpuTracker;
import com.android.internal.os.TransferPipe;
import com.android.internal.os.Zygote;
import com.android.internal.policy.IKeyguardDismissCallback;
import com.android.internal.telephony.TelephonyIntents;
import com.android.internal.util.ArrayUtils;
import com.android.internal.util.DumpUtils;
import com.android.internal.util.FastPrintWriter;
import com.android.internal.util.FastXmlSerializer;
import com.android.internal.util.MemInfoReader;
import com.android.internal.util.Preconditions;
import com.android.server.AppOpsService;
import com.android.server.AttributeCache;
import com.android.server.DeviceIdleController;
import com.android.server.IntentResolver;
import com.android.server.LocalServices;
import com.android.server.LockGuard;
import com.android.server.NetworkManagementInternal;
import com.android.server.RescueParty;
import com.android.server.ServiceThread;
import com.android.server.SystemConfig;
import com.android.server.SystemService;
import com.android.server.SystemServiceManager;
import com.android.server.ThreadPriorityBooster;
import com.android.server.Watchdog;
import com.android.server.am.ActivityStack.ActivityState;
import com.android.server.am.proto.ActivityManagerServiceProto;
import com.android.server.am.proto.BroadcastProto;
import com.android.server.am.proto.StickyBroadcastProto;
import com.android.server.firewall.IntentFirewall;
import com.android.server.job.JobSchedulerInternal;
import com.android.server.pm.Installer;
import com.android.server.pm.Installer.InstallerException;
import com.android.server.utils.PriorityDump;
import com.android.server.vr.VrManagerInternal;
import com.android.server.wm.PinnedStackWindowController;
import com.android.server.wm.WindowManagerService;
import com.google.android.collect.Lists;
import com.google.android.collect.Maps;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlSerializer;
import java.io.File;
import java.io.FileDescriptor;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.io.UnsupportedEncodingException;
import java.lang.ref.WeakReference;
import java.nio.charset.StandardCharsets;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.Date;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Objects;
import java.util.Set;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicLong;
import dalvik.system.VMRuntime;
import libcore.io.IoUtils;
import libcore.util.EmptyArray;
public class ActivityManagerService extends IActivityManager.Stub
implements Watchdog.Monitor, BatteryStatsImpl.BatteryCallback {
/**
* Priority we boost main thread and RT of top app to.
*/
public static final int TOP_APP_PRIORITY_BOOST = -10;
private static final String TAG = TAG_WITH_CLASS_NAME ? "ActivityManagerService" : TAG_AM;
private static final String TAG_BACKUP = TAG + POSTFIX_BACKUP;
private static final String TAG_BROADCAST = TAG + POSTFIX_BROADCAST;
private static final String TAG_CLEANUP = TAG + POSTFIX_CLEANUP;
private static final String TAG_CONFIGURATION = TAG + POSTFIX_CONFIGURATION;
private static final String TAG_FOCUS = TAG + POSTFIX_FOCUS;
private static final String TAG_IMMERSIVE = TAG + POSTFIX_IMMERSIVE;
private static final String TAG_LOCKTASK = TAG + POSTFIX_LOCKTASK;
private static final String TAG_LRU = TAG + POSTFIX_LRU;
private static final String TAG_MU = TAG + POSTFIX_MU;
private static final String TAG_NETWORK = TAG + POSTFIX_NETWORK;
private static final String TAG_OOM_ADJ = TAG + POSTFIX_OOM_ADJ;
private static final String TAG_POWER = TAG + POSTFIX_POWER;
private static final String TAG_PROCESS_OBSERVERS = TAG + POSTFIX_PROCESS_OBSERVERS;
private static final String TAG_PROCESSES = TAG + POSTFIX_PROCESSES;
private static final String TAG_PROVIDER = TAG + POSTFIX_PROVIDER;
private static final String TAG_PSS = TAG + POSTFIX_PSS;
private static final String TAG_RECENTS = TAG + POSTFIX_RECENTS;
private static final String TAG_SERVICE = TAG + POSTFIX_SERVICE;
private static final String TAG_STACK = TAG + POSTFIX_STACK;
private static final String TAG_SWITCH = TAG + POSTFIX_SWITCH;
private static final String TAG_UID_OBSERVERS = TAG + POSTFIX_UID_OBSERVERS;
private static final String TAG_URI_PERMISSION = TAG + POSTFIX_URI_PERMISSION;
private static final String TAG_VISIBILITY = TAG + POSTFIX_VISIBILITY;
// Mock "pretend we're idle now" broadcast action to the job scheduler; declared
// here so that while the job scheduler can depend on AMS, the other way around
// need not be the case.
public static final String ACTION_TRIGGER_IDLE = "com.android.server.ACTION_TRIGGER_IDLE";
/** Control over CPU and battery monitoring */
// write battery stats every 30 minutes.
static final long BATTERY_STATS_TIME = 30 * 60 * 1000;
static final boolean MONITOR_CPU_USAGE = true;
// don't sample cpu less than every 5 seconds.
static final long MONITOR_CPU_MIN_TIME = 5 * 1000;
// wait possibly forever for next cpu sample.
static final long MONITOR_CPU_MAX_TIME = 0x0fffffff;
static final boolean MONITOR_THREAD_CPU_USAGE = false;
// The flags that are set for all calls we make to the package manager.
static final int STOCK_PM_FLAGS = PackageManager.GET_SHARED_LIBRARY_FILES;
static final String SYSTEM_DEBUGGABLE = "ro.debuggable";
// Amount of time after a call to stopAppSwitches() during which we will
// prevent further untrusted switches from happening.
static final long APP_SWITCH_DELAY_TIME = 5*1000;
// How long we wait for a launched process to attach to the activity manager
// before we decide it's never going to come up for real.
static final int PROC_START_TIMEOUT = 10*1000;
// How long we wait for an attached process to publish its content providers
// before we decide it must be hung.
static final int CONTENT_PROVIDER_PUBLISH_TIMEOUT = 10*1000;
// How long we wait for a launched process to attach to the activity manager
// before we decide it's never going to come up for real, when the process was
// started with a wrapper for instrumentation (such as Valgrind) because it
// could take much longer than usual.
static final int PROC_START_TIMEOUT_WITH_WRAPPER = 1200*1000;
// How long we allow a receiver to run before giving up on it.
static final int BROADCAST_FG_TIMEOUT = 10*1000;
static final int BROADCAST_BG_TIMEOUT = 60*1000;
// How long we wait until we timeout on key dispatching.
static final int KEY_DISPATCHING_TIMEOUT = 5*1000;
// How long we wait until we timeout on key dispatching during instrumentation.
static final int INSTRUMENTATION_KEY_DISPATCHING_TIMEOUT = 60*1000;
// How long to wait in getAssistContextExtras for the activity and foreground services
// to respond with the result.
static final int PENDING_ASSIST_EXTRAS_TIMEOUT = 500;
// How long top wait when going through the modern assist (which doesn't need to block
// on getting this result before starting to launch its UI).
static final int PENDING_ASSIST_EXTRAS_LONG_TIMEOUT = 2000;
// How long to wait in getAutofillAssistStructure() for the activity to respond with the result.
static final int PENDING_AUTOFILL_ASSIST_STRUCTURE_TIMEOUT = 2000;
// Maximum number of persisted Uri grants a package is allowed
static final int MAX_PERSISTED_URI_GRANTS = 128;
static final int MY_PID = myPid();
static final String[] EMPTY_STRING_ARRAY = new String[0];
// How many bytes to write into the dropbox log before truncating
static final int DROPBOX_MAX_SIZE = 192 * 1024;
// Assumes logcat entries average around 100 bytes; that's not perfect stack traces count
// as one line, but close enough for now.
static final int RESERVED_BYTES_PER_LOGCAT_LINE = 100;
// Access modes for handleIncomingUser.
static final int ALLOW_NON_FULL = 0;
static final int ALLOW_NON_FULL_IN_PROFILE = 1;
static final int ALLOW_FULL_ONLY = 2;
// Necessary ApplicationInfo flags to mark an app as persistent
private static final int PERSISTENT_MASK =
ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PERSISTENT;
// Intent sent when remote bugreport collection has been completed
private static final String INTENT_REMOTE_BUGREPORT_FINISHED =
"com.android.internal.intent.action.REMOTE_BUGREPORT_FINISHED";
// Used to indicate that an app transition should be animated.
static final boolean ANIMATE = true;
// Determines whether to take full screen screenshots
static final boolean TAKE_FULLSCREEN_SCREENSHOTS = true;
/**
* Default value for {@link Settings.Global#NETWORK_ACCESS_TIMEOUT_MS}.
*/
private static final long NETWORK_ACCESS_TIMEOUT_DEFAULT_MS = 200; // 0.2 sec
/**
* State indicating that there is no need for any blocking for network.
*/
@VisibleForTesting
static final int NETWORK_STATE_NO_CHANGE = 0;
/**
* State indicating that the main thread needs to be informed about the network wait.
*/
@VisibleForTesting
static final int NETWORK_STATE_BLOCK = 1;
/**
* State indicating that any threads waiting for network state to get updated can be unblocked.
*/
@VisibleForTesting
static final int NETWORK_STATE_UNBLOCK = 2;
// Max character limit for a notification title. If the notification title is larger than this
// the notification will not be legible to the user.
private static final int MAX_BUGREPORT_TITLE_SIZE = 50;
private static final int NATIVE_DUMP_TIMEOUT_MS = 2000; // 2 seconds;
/** All system services */
SystemServiceManager mSystemServiceManager;
AssistUtils mAssistUtils;
private Installer mInstaller;
/** Run all ActivityStacks through this */
final ActivityStackSupervisor mStackSupervisor;
private final KeyguardController mKeyguardController;
final ActivityStarter mActivityStarter;
final TaskChangeNotificationController mTaskChangeNotificationController;
final InstrumentationReporter mInstrumentationReporter = new InstrumentationReporter();
final ArrayList<ActiveInstrumentation> mActiveInstrumentation = new ArrayList<>();
public final IntentFirewall mIntentFirewall;
// Whether we should show our dialogs (ANR, crash, etc) or just perform their
// default action automatically. Important for devices without direct input
// devices.
private boolean mShowDialogs = true;
private final VrController mVrController;
// VR Vr2d Display Id.
int mVr2dDisplayId = INVALID_DISPLAY;
// Whether we should use SCHED_FIFO for UI and RenderThreads.
private boolean mUseFifoUiScheduling = false;
BroadcastQueue mFgBroadcastQueue;
BroadcastQueue mBgBroadcastQueue;
// Convenient for easy iteration over the queues. Foreground is first
// so that dispatch of foreground broadcasts gets precedence.
final BroadcastQueue[] mBroadcastQueues = new BroadcastQueue[2];
BroadcastStats mLastBroadcastStats;
BroadcastStats mCurBroadcastStats;
BroadcastQueue broadcastQueueForIntent(Intent intent) {
final boolean isFg = (intent.getFlags() & Intent.FLAG_RECEIVER_FOREGROUND) != 0;
if (DEBUG_BROADCAST_BACKGROUND) Slog.i(TAG_BROADCAST,
"Broadcast intent " + intent + " on "
+ (isFg ? "foreground" : "background") + " queue");
return (isFg) ? mFgBroadcastQueue : mBgBroadcastQueue;
}
/**
* The last resumed activity. This is identical to the current resumed activity most
* of the time but could be different when we're pausing one activity before we resume
* another activity.
*/
private ActivityRecord mLastResumedActivity;
/**
* If non-null, we are tracking the time the user spends in the currently focused app.
*/
private AppTimeTracker mCurAppTimeTracker;
/**
* List of intents that were used to start the most recent tasks.
*/
private final RecentTasks mRecentTasks;
/**
* For addAppTask: cached of the last activity component that was added.
*/
ComponentName mLastAddedTaskComponent;
/**
* For addAppTask: cached of the last activity uid that was added.
*/
int mLastAddedTaskUid;
/**
* For addAppTask: cached of the last ActivityInfo that was added.
*/
ActivityInfo mLastAddedTaskActivity;
/**
* The package name of the DeviceOwner. This package is not permitted to have its data cleared.
*/
String mDeviceOwnerName;
/**
* The controller for all operations related to locktask.
*/
final LockTaskController mLockTaskController;
final UserController mUserController;
final AppErrors mAppErrors;
/**
* Dump of the activity state at the time of the last ANR. Cleared after
* {@link WindowManagerService#LAST_ANR_LIFETIME_DURATION_MSECS}
*/
String mLastANRState;
/**
* Indicates the maximum time spent waiting for the network rules to get updated.
*/
@VisibleForTesting
long mWaitForNetworkTimeoutMs;
/**
* Helper class which parses out priority arguments and dumps sections according to their
* priority. If priority arguments are omitted, function calls the legacy dump command.
*/
private final PriorityDump.PriorityDumper mPriorityDumper = new PriorityDump.PriorityDumper() {
@Override
public void dumpCritical(FileDescriptor fd, PrintWriter pw, String[] args,
boolean asProto) {
if (asProto) return;
doDump(fd, pw, new String[]{"activities"}, asProto);
}
@Override
public void dumpNormal(FileDescriptor fd, PrintWriter pw, String[] args, boolean asProto) {
if (asProto) {
doDump(fd, pw, new String[0], asProto);
} else {
doDump(fd, pw, new String[]{"settings"}, asProto);
doDump(fd, pw, new String[]{"intents"}, asProto);
doDump(fd, pw, new String[]{"broadcasts"}, asProto);
doDump(fd, pw, new String[]{"providers"}, asProto);
doDump(fd, pw, new String[]{"permissions"}, asProto);
doDump(fd, pw, new String[]{"services"}, asProto);
doDump(fd, pw, new String[]{"recents"}, asProto);
doDump(fd, pw, new String[]{"lastanr"}, asProto);
doDump(fd, pw, new String[]{"starter"}, asProto);
if (mAssociations.size() > 0) {
doDump(fd, pw, new String[]{"associations"}, asProto);
}
doDump(fd, pw, new String[]{"processes"}, asProto);
}
}
@Override
public void dump(FileDescriptor fd, PrintWriter pw, String[] args, boolean asProto) {
doDump(fd, pw, args, asProto);
}
};
public boolean canShowErrorDialogs() {
return mShowDialogs && !mSleeping && !mShuttingDown
&& !mKeyguardController.isKeyguardShowing(DEFAULT_DISPLAY)
&& !mUserController.hasUserRestriction(UserManager.DISALLOW_SYSTEM_ERROR_DIALOGS,
mUserController.getCurrentUserId())
&& !(UserManager.isDeviceInDemoMode(mContext)
&& mUserController.getCurrentUser().isDemo());
}
private static ThreadPriorityBooster sThreadPriorityBooster = new ThreadPriorityBooster(
THREAD_PRIORITY_FOREGROUND, LockGuard.INDEX_ACTIVITY);
static void boostPriorityForLockedSection() {
sThreadPriorityBooster.boost();
}
static void resetPriorityAfterLockedSection() {
sThreadPriorityBooster.reset();
}
public class PendingAssistExtras extends Binder implements Runnable {
public final ActivityRecord activity;
public boolean isHome;
public final Bundle extras;
public final Intent intent;
public final String hint;
public final IResultReceiver receiver;
public final int userHandle;
public boolean haveResult = false;
public Bundle result = null;
public AssistStructure structure = null;
public AssistContent content = null;
public Bundle receiverExtras;
public PendingAssistExtras(ActivityRecord _activity, Bundle _extras, Intent _intent,
String _hint, IResultReceiver _receiver, Bundle _receiverExtras, int _userHandle) {
activity = _activity;
extras = _extras;
intent = _intent;
hint = _hint;
receiver = _receiver;
receiverExtras = _receiverExtras;
userHandle = _userHandle;
}
@Override
public void run() {
Slog.w(TAG, "getAssistContextExtras failed: timeout retrieving from " + activity);
synchronized (this) {
haveResult = true;
notifyAll();
}
pendingAssistExtrasTimedOut(this);
}
}
final ArrayList<PendingAssistExtras> mPendingAssistExtras
= new ArrayList<PendingAssistExtras>();
/**
* Process management.
*/
final ProcessList mProcessList = new ProcessList();
/**
* All of the applications we currently have running organized by name.
* The keys are strings of the application package name (as
* returned by the package manager), and the keys are ApplicationRecord
* objects.
*/
final ProcessMap<ProcessRecord> mProcessNames = new ProcessMap<ProcessRecord>();
/**
* Tracking long-term execution of processes to look for abuse and other
* bad app behavior.
*/
final ProcessStatsService mProcessStats;
/**
* The currently running isolated processes.
*/
final SparseArray<ProcessRecord> mIsolatedProcesses = new SparseArray<ProcessRecord>();
/**
* Counter for assigning isolated process uids, to avoid frequently reusing the
* same ones.
*/
int mNextIsolatedProcessUid = 0;
/**
* The currently running heavy-weight process, if any.
*/
ProcessRecord mHeavyWeightProcess = null;
/**
* Non-persistent appId whitelist for background restrictions
*/
int[] mBackgroundAppIdWhitelist = new int[] {
BLUETOOTH_UID
};
/**
* Broadcast actions that will always be deliverable to unlaunched/background apps
*/
ArraySet<String> mBackgroundLaunchBroadcasts;
/**
* All of the processes we currently have running organized by pid.
* The keys are the pid running the application.
*
* <p>NOTE: This object is protected by its own lock, NOT the global
* activity manager lock!
*/
final SparseArray<ProcessRecord> mPidsSelfLocked = new SparseArray<ProcessRecord>();
/**
* All of the processes that have been forced to be important. The key
* is the pid of the caller who requested it (we hold a death
* link on it).
*/
abstract class ImportanceToken implements IBinder.DeathRecipient {
final int pid;
final IBinder token;
final String reason;
ImportanceToken(int _pid, IBinder _token, String _reason) {
pid = _pid;
token = _token;
reason = _reason;
}
@Override
public String toString() {
return "ImportanceToken { " + Integer.toHexString(System.identityHashCode(this))
+ " " + reason + " " + pid + " " + token + " }";
}
}
final SparseArray<ImportanceToken> mImportantProcesses = new SparseArray<ImportanceToken>();
/**
* List of records for processes that someone had tried to start before the
* system was ready. We don't start them at that point, but ensure they
* are started by the time booting is complete.
*/
final ArrayList<ProcessRecord> mProcessesOnHold = new ArrayList<ProcessRecord>();
/**
* List of persistent applications that are in the process
* of being started.
*/
final ArrayList<ProcessRecord> mPersistentStartingProcesses = new ArrayList<ProcessRecord>();
/**
* Processes that are being forcibly torn down.
*/
final ArrayList<ProcessRecord> mRemovedProcesses = new ArrayList<ProcessRecord>();
/**
* List of running applications, sorted by recent usage.
* The first entry in the list is the least recently used.
*/
final ArrayList<ProcessRecord> mLruProcesses = new ArrayList<ProcessRecord>();
/**
* Where in mLruProcesses that the processes hosting activities start.
*/
int mLruProcessActivityStart = 0;
/**
* Where in mLruProcesses that the processes hosting services start.
* This is after (lower index) than mLruProcessesActivityStart.
*/
int mLruProcessServiceStart = 0;
/**
* List of processes that should gc as soon as things are idle.
*/
final ArrayList<ProcessRecord> mProcessesToGc = new ArrayList<ProcessRecord>();
/**
* Processes we want to collect PSS data from.
*/
final ArrayList<ProcessRecord> mPendingPssProcesses = new ArrayList<ProcessRecord>();
private boolean mBinderTransactionTrackingEnabled = false;
/**
* Last time we requested PSS data of all processes.
*/
long mLastFullPssTime = SystemClock.uptimeMillis();
/**
* If set, the next time we collect PSS data we should do a full collection
* with data from native processes and the kernel.
*/
boolean mFullPssPending = false;
/**
* This is the process holding what we currently consider to be
* the "home" activity.
*/
ProcessRecord mHomeProcess;
/**
* This is the process holding the activity the user last visited that
* is in a different process from the one they are currently in.
*/
ProcessRecord mPreviousProcess;
/**
* The time at which the previous process was last visible.
*/
long mPreviousProcessVisibleTime;
/**
* Track all uids that have actively running processes.
*/
final SparseArray<UidRecord> mActiveUids = new SparseArray<>();
/**
* This is for verifying the UID report flow.
*/
static final boolean VALIDATE_UID_STATES = true;
final SparseArray<UidRecord> mValidateUids = new SparseArray<>();
/**
* Packages that the user has asked to have run in screen size
* compatibility mode instead of filling the screen.
*/
final CompatModePackages mCompatModePackages;
/**
* Set of IntentSenderRecord objects that are currently active.
*/
final HashMap<PendingIntentRecord.Key, WeakReference<PendingIntentRecord>> mIntentSenderRecords
= new HashMap<PendingIntentRecord.Key, WeakReference<PendingIntentRecord>>();
/**
* Fingerprints (hashCode()) of stack traces that we've
* already logged DropBox entries for. Guarded by itself. If
* something (rogue user app) forces this over
* MAX_DUP_SUPPRESSED_STACKS entries, the contents are cleared.
*/
private final HashSet<Integer> mAlreadyLoggedViolatedStacks = new HashSet<Integer>();
private static final int MAX_DUP_SUPPRESSED_STACKS = 5000;
/**
* Strict Mode background batched logging state.
*
* The string buffer is guarded by itself, and its lock is also
* used to determine if another batched write is already
* in-flight.
*/
private final StringBuilder mStrictModeBuffer = new StringBuilder();
/**
* Keeps track of all IIntentReceivers that have been registered for broadcasts.
* Hash keys are the receiver IBinder, hash value is a ReceiverList.
*/
final HashMap<IBinder, ReceiverList> mRegisteredReceivers = new HashMap<>();
/**
* Resolver for broadcast intents to registered receivers.
* Holds BroadcastFilter (subclass of IntentFilter).
*/
final IntentResolver<BroadcastFilter, BroadcastFilter> mReceiverResolver
= new IntentResolver<BroadcastFilter, BroadcastFilter>() {
@Override
protected boolean allowFilterResult(
BroadcastFilter filter, List<BroadcastFilter> dest) {
IBinder target = filter.receiverList.receiver.asBinder();
for (int i = dest.size() - 1; i >= 0; i--) {
if (dest.get(i).receiverList.receiver.asBinder() == target) {
return false;
}
}
return true;
}
@Override
protected BroadcastFilter newResult(BroadcastFilter filter, int match, int userId) {
if (userId == UserHandle.USER_ALL || filter.owningUserId == UserHandle.USER_ALL
|| userId == filter.owningUserId) {
return super.newResult(filter, match, userId);
}
return null;
}
@Override
protected BroadcastFilter[] newArray(int size) {
return new BroadcastFilter[size];
}
@Override
protected boolean isPackageForFilter(String packageName, BroadcastFilter filter) {
return packageName.equals(filter.packageName);
}
};
/**
* State of all active sticky broadcasts per user. Keys are the action of the
* sticky Intent, values are an ArrayList of all broadcasted intents with
* that action (which should usually be one). The SparseArray is keyed
* by the user ID the sticky is for, and can include UserHandle.USER_ALL
* for stickies that are sent to all users.
*/
final SparseArray<ArrayMap<String, ArrayList<Intent>>> mStickyBroadcasts =
new SparseArray<ArrayMap<String, ArrayList<Intent>>>();
final ActiveServices mServices;
final static class Association {
final int mSourceUid;
final String mSourceProcess;
final int mTargetUid;
final ComponentName mTargetComponent;
final String mTargetProcess;
int mCount;
long mTime;
int mNesting;
long mStartTime;
// states of the source process when the bind occurred.
int mLastState = ActivityManager.MAX_PROCESS_STATE + 1;
long mLastStateUptime;
long[] mStateTimes = new long[ActivityManager.MAX_PROCESS_STATE
- ActivityManager.MIN_PROCESS_STATE+1];
Association(int sourceUid, String sourceProcess, int targetUid,
ComponentName targetComponent, String targetProcess) {
mSourceUid = sourceUid;
mSourceProcess = sourceProcess;
mTargetUid = targetUid;
mTargetComponent = targetComponent;
mTargetProcess = targetProcess;
}
}
/**
* When service association tracking is enabled, this is all of the associations we
* have seen. Mapping is target uid -> target component -> source uid -> source process name
* -> association data.
*/
final SparseArray<ArrayMap<ComponentName, SparseArray<ArrayMap<String, Association>>>>
mAssociations = new SparseArray<>();
boolean mTrackingAssociations;
/**
* Backup/restore process management
*/
String mBackupAppName = null;
BackupRecord mBackupTarget = null;
final ProviderMap mProviderMap;
/**
* List of content providers who have clients waiting for them. The
* application is currently being launched and the provider will be
* removed from this list once it is published.
*/
final ArrayList<ContentProviderRecord> mLaunchingProviders
= new ArrayList<ContentProviderRecord>();
/**
* File storing persisted {@link #mGrantedUriPermissions}.
*/
private final AtomicFile mGrantFile;
/** XML constants used in {@link #mGrantFile} */
private static final String TAG_URI_GRANTS = "uri-grants";
private static final String TAG_URI_GRANT = "uri-grant";
private static final String ATTR_USER_HANDLE = "userHandle";
private static final String ATTR_SOURCE_USER_ID = "sourceUserId";
private static final String ATTR_TARGET_USER_ID = "targetUserId";
private static final String ATTR_SOURCE_PKG = "sourcePkg";
private static final String ATTR_TARGET_PKG = "targetPkg";
private static final String ATTR_URI = "uri";
private static final String ATTR_MODE_FLAGS = "modeFlags";
private static final String ATTR_CREATED_TIME = "createdTime";
private static final String ATTR_PREFIX = "prefix";
/**
* Global set of specific {@link Uri} permissions that have been granted.
* This optimized lookup structure maps from {@link UriPermission#targetUid}
* to {@link UriPermission#uri} to {@link UriPermission}.
*/
@GuardedBy("this")
private final SparseArray<ArrayMap<GrantUri, UriPermission>>
mGrantedUriPermissions = new SparseArray<ArrayMap<GrantUri, UriPermission>>();
public static class GrantUri {
public final int sourceUserId;
public final Uri uri;
public boolean prefix;
public GrantUri(int sourceUserId, Uri uri, boolean prefix) {
this.sourceUserId = sourceUserId;
this.uri = uri;
this.prefix = prefix;
}
@Override
public int hashCode() {
int hashCode = 1;
hashCode = 31 * hashCode + sourceUserId;
hashCode = 31 * hashCode + uri.hashCode();
hashCode = 31 * hashCode + (prefix ? 1231 : 1237);
return hashCode;
}
@Override
public boolean equals(Object o) {
if (o instanceof GrantUri) {
GrantUri other = (GrantUri) o;
return uri.equals(other.uri) && (sourceUserId == other.sourceUserId)
&& prefix == other.prefix;
}
return false;
}
@Override
public String toString() {
String result = uri.toString() + " [user " + sourceUserId + "]";
if (prefix) result += " [prefix]";
return result;
}
public String toSafeString() {
String result = uri.toSafeString() + " [user " + sourceUserId + "]";
if (prefix) result += " [prefix]";
return result;
}
public static GrantUri resolve(int defaultSourceUserHandle, Uri uri) {
return new GrantUri(ContentProvider.getUserIdFromUri(uri, defaultSourceUserHandle),
ContentProvider.getUriWithoutUserId(uri), false);
}
}
CoreSettingsObserver mCoreSettingsObserver;
FontScaleSettingObserver mFontScaleSettingObserver;
private final class FontScaleSettingObserver extends ContentObserver {
private final Uri mFontScaleUri = Settings.System.getUriFor(FONT_SCALE);
public FontScaleSettingObserver() {
super(mHandler);
ContentResolver resolver = mContext.getContentResolver();
resolver.registerContentObserver(mFontScaleUri, false, this, UserHandle.USER_ALL);
}
@Override
public void onChange(boolean selfChange, Uri uri, @UserIdInt int userId) {
if (mFontScaleUri.equals(uri)) {
updateFontScaleIfNeeded(userId);
}
}
}
/**
* Thread-local storage used to carry caller permissions over through
* indirect content-provider access.
*/
private class Identity {
public final IBinder token;
public final int pid;
public final int uid;
Identity(IBinder _token, int _pid, int _uid) {
token = _token;
pid = _pid;
uid = _uid;
}
}
private static final ThreadLocal<Identity> sCallerIdentity = new ThreadLocal<Identity>();
/**
* All information we have collected about the runtime performance of
* any user id that can impact battery performance.
*/
final BatteryStatsService mBatteryStatsService;
/**
* Information about component usage
*/
UsageStatsManagerInternal mUsageStatsService;
/**
* Access to DeviceIdleController service.
*/
DeviceIdleController.LocalService mLocalDeviceIdleController;
/**
* Set of app ids that are whitelisted for device idle and thus background check.
*/
int[] mDeviceIdleWhitelist = new int[0];
/**
* Set of app ids that are temporarily allowed to escape bg check due to high-pri message
*/
int[] mDeviceIdleTempWhitelist = new int[0];
static final class PendingTempWhitelist {
final int targetUid;
final long duration;
final String tag;
PendingTempWhitelist(int _targetUid, long _duration, String _tag) {
targetUid = _targetUid;
duration = _duration;
tag = _tag;
}
}
final SparseArray<PendingTempWhitelist> mPendingTempWhitelist = new SparseArray<>();
/**
* Information about and control over application operations
*/
final AppOpsService mAppOpsService;
/** Current sequencing integer of the configuration, for skipping old configurations. */
private int mConfigurationSeq;
/**
* Temp object used when global and/or display override configuration is updated. It is also
* sent to outer world instead of {@link #getGlobalConfiguration} because we don't trust
* anyone...
*/
private Configuration mTempConfig = new Configuration();
private final UpdateConfigurationResult mTmpUpdateConfigurationResult =
new UpdateConfigurationResult();
private static final class UpdateConfigurationResult {
// Configuration changes that were updated.
int changes;
// If the activity was relaunched to match the new configuration.
boolean activityRelaunched;
void reset() {
changes = 0;
activityRelaunched = false;
}
}
boolean mSuppressResizeConfigChanges;
/**
* Hardware-reported OpenGLES version.
*/
final int GL_ES_VERSION;
/**
* List of initialization arguments to pass to all processes when binding applications to them.
* For example, references to the commonly used services.
*/
HashMap<String, IBinder> mAppBindArgs;
HashMap<String, IBinder> mIsolatedAppBindArgs;
/**
* Temporary to avoid allocations. Protected by main lock.
*/
final StringBuilder mStringBuilder = new StringBuilder(256);
/**
* Used to control how we initialize the service.
*/
ComponentName mTopComponent;
String mTopAction = Intent.ACTION_MAIN;
String mTopData;
volatile boolean mProcessesReady = false;
volatile boolean mSystemReady = false;
volatile boolean mOnBattery = false;
volatile int mFactoryTest;
@GuardedBy("this") boolean mBooting = false;
@GuardedBy("this") boolean mCallFinishBooting = false;
@GuardedBy("this") boolean mBootAnimationComplete = false;
@GuardedBy("this") boolean mLaunchWarningShown = false;
@GuardedBy("this") boolean mCheckedForSetup = false;
final Context mContext;
/**
* This Context is themable and meant for UI display (AlertDialogs, etc.). The theme can
* change at runtime. Use mContext for non-UI purposes.
*/
final Context mUiContext;
/**
* The time at which we will allow normal application switches again,
* after a call to {@link #stopAppSwitches()}.
*/
long mAppSwitchesAllowedTime;
/**
* This is set to true after the first switch after mAppSwitchesAllowedTime
* is set; any switches after that will clear the time.
*/
boolean mDidAppSwitch;
/**
* Last time (in uptime) at which we checked for power usage.
*/
long mLastPowerCheckUptime;
/**
* Set while we are wanting to sleep, to prevent any
* activities from being started/resumed.
*
* TODO(b/33594039): Clarify the actual state transitions represented by mSleeping.
*
* Currently mSleeping is set to true when transitioning into the sleep state, and remains true
* while in the sleep state until there is a pending transition out of sleep, in which case
* mSleeping is set to false, and remains false while awake.
*
* Whether mSleeping can quickly toggled between true/false without the device actually
* display changing states is undefined.
*/
private boolean mSleeping = false;
/**
* The process state used for processes that are running the top activities.
* This changes between TOP and TOP_SLEEPING to following mSleeping.
*/
int mTopProcessState = ActivityManager.PROCESS_STATE_TOP;
/**
* Set while we are running a voice interaction. This overrides
* sleeping while it is active.
*/
IVoiceInteractionSession mRunningVoice;
/**
* For some direct access we need to power manager.
*/
PowerManagerInternal mLocalPowerManager;
/**
* We want to hold a wake lock while running a voice interaction session, since
* this may happen with the screen off and we need to keep the CPU running to
* be able to continue to interact with the user.
*/
PowerManager.WakeLock mVoiceWakeLock;
/**
* State of external calls telling us if the device is awake or asleep.
*/
private int mWakefulness = PowerManagerInternal.WAKEFULNESS_AWAKE;
/**
* Set if we are shutting down the system, similar to sleeping.
*/
boolean mShuttingDown = false;
/**
* Current sequence id for oom_adj computation traversal.
*/
int mAdjSeq = 0;
/**
* Current sequence id for process LRU updating.
*/
int mLruSeq = 0;
/**
* Keep track of the non-cached/empty process we last found, to help
* determine how to distribute cached/empty processes next time.
*/
int mNumNonCachedProcs = 0;
/**
* Keep track of the number of cached hidden procs, to balance oom adj
* distribution between those and empty procs.
*/
int mNumCachedHiddenProcs = 0;
/**
* Keep track of the number of service processes we last found, to
* determine on the next iteration which should be B services.
*/
int mNumServiceProcs = 0;
int mNewNumAServiceProcs = 0;
int mNewNumServiceProcs = 0;
/**
* Allow the current computed overall memory level of the system to go down?
* This is set to false when we are killing processes for reasons other than
* memory management, so that the now smaller process list will not be taken as
* an indication that memory is tighter.
*/
boolean mAllowLowerMemLevel = false;
/**
* The last computed memory level, for holding when we are in a state that
* processes are going away for other reasons.
*/
int mLastMemoryLevel = ProcessStats.ADJ_MEM_FACTOR_NORMAL;
/**
* The last total number of process we have, to determine if changes actually look
* like a shrinking number of process due to lower RAM.
*/
int mLastNumProcesses;
/**
* The uptime of the last time we performed idle maintenance.
*/
long mLastIdleTime = SystemClock.uptimeMillis();
/**
* Total time spent with RAM that has been added in the past since the last idle time.
*/
long mLowRamTimeSinceLastIdle = 0;
/**
* If RAM is currently low, when that horrible situation started.
*/
long mLowRamStartTime = 0;
/**
* For reporting to battery stats the current top application.
*/
private String mCurResumedPackage = null;
private int mCurResumedUid = -1;
/**
* For reporting to battery stats the apps currently running foreground
* service. The ProcessMap is package/uid tuples; each of these contain
* an array of the currently foreground processes.
*/
final ProcessMap<ArrayList<ProcessRecord>> mForegroundPackages
= new ProcessMap<ArrayList<ProcessRecord>>();
/**
* Set if the systemServer made a call to enterSafeMode.
*/
boolean mSafeMode;
/**
* If true, we are running under a test environment so will sample PSS from processes
* much more rapidly to try to collect better data when the tests are rapidly
* running through apps.
*/
boolean mTestPssMode = false;
String mDebugApp = null;
boolean mWaitForDebugger = false;
boolean mDebugTransient = false;
String mOrigDebugApp = null;
boolean mOrigWaitForDebugger = false;
boolean mAlwaysFinishActivities = false;
boolean mForceResizableActivities;
/**
* Flag that indicates if multi-window is enabled.
*
* For any particular form of multi-window to be enabled, generic multi-window must be enabled
* in {@link com.android.internal.R.bool#config_supportsMultiWindow} config or
* {@link Settings.Global#DEVELOPMENT_FORCE_RESIZABLE_ACTIVITIES} development option set.
* At least one of the forms of multi-window must be enabled in order for this flag to be
* initialized to 'true'.
*
* @see #mSupportsSplitScreenMultiWindow
* @see #mSupportsFreeformWindowManagement
* @see #mSupportsPictureInPicture
* @see #mSupportsMultiDisplay
*/
boolean mSupportsMultiWindow;
boolean mSupportsSplitScreenMultiWindow;
boolean mSupportsFreeformWindowManagement;
boolean mSupportsPictureInPicture;
boolean mSupportsMultiDisplay;
boolean mSupportsLeanbackOnly;
IActivityController mController = null;
boolean mControllerIsAMonkey = false;
String mProfileApp = null;
ProcessRecord mProfileProc = null;
ProfilerInfo mProfilerInfo = null;
int mProfileType = 0;
final ProcessMap<Pair<Long, String>> mMemWatchProcesses = new ProcessMap<>();
String mMemWatchDumpProcName;
String mMemWatchDumpFile;
int mMemWatchDumpPid;
int mMemWatchDumpUid;
String mTrackAllocationApp = null;
String mNativeDebuggingApp = null;
final long[] mTmpLong = new long[2];
private final ArraySet<BroadcastQueue> mTmpBroadcastQueue = new ArraySet();
/**
* A global counter for generating sequence numbers.
* This value will be used when incrementing sequence numbers in individual uidRecords.
*
* Having a global counter ensures that seq numbers are monotonically increasing for a
* particular uid even when the uidRecord is re-created.
*/
@GuardedBy("this")
@VisibleForTesting
long mProcStateSeqCounter = 0;
private final Injector mInjector;
static final class ProcessChangeItem {
static final int CHANGE_ACTIVITIES = 1<<0;
int changes;
int uid;
int pid;
int processState;
boolean foregroundActivities;
}
static final class UidObserverRegistration {
final int uid;
final String pkg;
final int which;
final int cutpoint;
final SparseIntArray lastProcStates;
UidObserverRegistration(int _uid, String _pkg, int _which, int _cutpoint) {
uid = _uid;
pkg = _pkg;
which = _which;
cutpoint = _cutpoint;
if (cutpoint >= ActivityManager.MIN_PROCESS_STATE) {
lastProcStates = new SparseIntArray();
} else {
lastProcStates = null;
}
}
}
final RemoteCallbackList<IProcessObserver> mProcessObservers = new RemoteCallbackList<>();
ProcessChangeItem[] mActiveProcessChanges = new ProcessChangeItem[5];
final ArrayList<ProcessChangeItem> mPendingProcessChanges = new ArrayList<>();
final ArrayList<ProcessChangeItem> mAvailProcessChanges = new ArrayList<>();
final RemoteCallbackList<IUidObserver> mUidObservers = new RemoteCallbackList<>();
UidRecord.ChangeItem[] mActiveUidChanges = new UidRecord.ChangeItem[5];
final ArrayList<UidRecord.ChangeItem> mPendingUidChanges = new ArrayList<>();
final ArrayList<UidRecord.ChangeItem> mAvailUidChanges = new ArrayList<>();
OomAdjObserver mCurOomAdjObserver;
int mCurOomAdjUid;
interface OomAdjObserver {
void onOomAdjMessage(String msg);
}
/**
* Runtime CPU use collection thread. This object's lock is used to
* perform synchronization with the thread (notifying it to run).
*/
final Thread mProcessCpuThread;
/**
* Used to collect per-process CPU use for ANRs, battery stats, etc.
* Must acquire this object's lock when accessing it.
* NOTE: this lock will be held while doing long operations (trawling
* through all processes in /proc), so it should never be acquired by
* any critical paths such as when holding the main activity manager lock.
*/
final ProcessCpuTracker mProcessCpuTracker = new ProcessCpuTracker(
MONITOR_THREAD_CPU_USAGE);
final AtomicLong mLastCpuTime = new AtomicLong(0);
final AtomicBoolean mProcessCpuMutexFree = new AtomicBoolean(true);
final CountDownLatch mProcessCpuInitLatch = new CountDownLatch(1);
long mLastWriteTime = 0;
/**
* Used to retain an update lock when the foreground activity is in
* immersive mode.
*/
final UpdateLock mUpdateLock = new UpdateLock("immersive");
/**
* Set to true after the system has finished booting.
*/
boolean mBooted = false;
WindowManagerService mWindowManager;
final ActivityThread mSystemThread;
private final class AppDeathRecipient implements IBinder.DeathRecipient {
final ProcessRecord mApp;
final int mPid;
final IApplicationThread mAppThread;
AppDeathRecipient(ProcessRecord app, int pid,
IApplicationThread thread) {
if (DEBUG_ALL) Slog.v(
TAG, "New death recipient " + this
+ " for thread " + thread.asBinder());
mApp = app;
mPid = pid;
mAppThread = thread;
}
@Override
public void binderDied() {
if (DEBUG_ALL) Slog.v(
TAG, "Death received in " + this
+ " for thread " + mAppThread.asBinder());
synchronized(ActivityManagerService.this) {
appDiedLocked(mApp, mPid, mAppThread, true);
}
}
}
static final int SHOW_ERROR_UI_MSG = 1;
static final int SHOW_NOT_RESPONDING_UI_MSG = 2;
static final int SHOW_FACTORY_ERROR_UI_MSG = 3;
static final int UPDATE_CONFIGURATION_MSG = 4;
static final int GC_BACKGROUND_PROCESSES_MSG = 5;
static final int WAIT_FOR_DEBUGGER_UI_MSG = 6;
static final int SERVICE_TIMEOUT_MSG = 12;
static final int UPDATE_TIME_ZONE = 13;
static final int SHOW_UID_ERROR_UI_MSG = 14;
static final int SHOW_FINGERPRINT_ERROR_UI_MSG = 15;
static final int PROC_START_TIMEOUT_MSG = 20;
static final int DO_PENDING_ACTIVITY_LAUNCHES_MSG = 21;
static final int KILL_APPLICATION_MSG = 22;
static final int FINALIZE_PENDING_INTENT_MSG = 23;
static final int POST_HEAVY_NOTIFICATION_MSG = 24;
static final int CANCEL_HEAVY_NOTIFICATION_MSG = 25;
static final int SHOW_STRICT_MODE_VIOLATION_UI_MSG = 26;
static final int CHECK_EXCESSIVE_POWER_USE_MSG = 27;
static final int CLEAR_DNS_CACHE_MSG = 28;
static final int UPDATE_HTTP_PROXY_MSG = 29;
static final int SHOW_COMPAT_MODE_DIALOG_UI_MSG = 30;
static final int DISPATCH_PROCESSES_CHANGED_UI_MSG = 31;
static final int DISPATCH_PROCESS_DIED_UI_MSG = 32;
static final int REPORT_MEM_USAGE_MSG = 33;
static final int IMMERSIVE_MODE_LOCK_MSG = 37;
static final int PERSIST_URI_GRANTS_MSG = 38;
static final int REQUEST_ALL_PSS_MSG = 39;
static final int UPDATE_TIME_PREFERENCE_MSG = 41;
static final int ENTER_ANIMATION_COMPLETE_MSG = 44;
static final int FINISH_BOOTING_MSG = 45;
static final int SEND_LOCALE_TO_MOUNT_DAEMON_MSG = 47;
static final int DISMISS_DIALOG_UI_MSG = 48;
static final int NOTIFY_CLEARTEXT_NETWORK_MSG = 49;
static final int POST_DUMP_HEAP_NOTIFICATION_MSG = 50;
static final int DELETE_DUMPHEAP_MSG = 51;
static final int DISPATCH_UIDS_CHANGED_UI_MSG = 53;
static final int REPORT_TIME_TRACKER_MSG = 54;
static final int SHUTDOWN_UI_AUTOMATION_CONNECTION_MSG = 56;
static final int CONTENT_PROVIDER_PUBLISH_TIMEOUT_MSG = 57;
static final int IDLE_UIDS_MSG = 58;
static final int LOG_STACK_STATE = 60;
static final int VR_MODE_CHANGE_MSG = 61;
static final int SHOW_UNSUPPORTED_DISPLAY_SIZE_DIALOG_MSG = 62;
static final int HANDLE_TRUST_STORAGE_UPDATE_MSG = 63;
static final int NOTIFY_VR_SLEEPING_MSG = 65;
static final int SERVICE_FOREGROUND_TIMEOUT_MSG = 66;
static final int DISPATCH_PENDING_INTENT_CANCEL_MSG = 67;
static final int PUSH_TEMP_WHITELIST_UI_MSG = 68;
static final int SERVICE_FOREGROUND_CRASH_MSG = 69;
static final int DISPATCH_OOM_ADJ_OBSERVER_MSG = 70;
static final int NOTIFY_VR_KEYGUARD_MSG = 74;
static final int FIRST_ACTIVITY_STACK_MSG = 100;
static final int FIRST_BROADCAST_QUEUE_MSG = 200;
static final int FIRST_COMPAT_MODE_MSG = 300;
static final int FIRST_SUPERVISOR_STACK_MSG = 100;
static ServiceThread sKillThread = null;
static KillHandler sKillHandler = null;
CompatModeDialog mCompatModeDialog;
UnsupportedDisplaySizeDialog mUnsupportedDisplaySizeDialog;
long mLastMemUsageReportTime = 0;
/**
* Flag whether the current user is a "monkey", i.e. whether
* the UI is driven by a UI automation tool.
*/
private boolean mUserIsMonkey;
/** The dimensions of the thumbnails in the Recents UI. */
int mThumbnailWidth;
int mThumbnailHeight;
float mFullscreenThumbnailScale;
final ServiceThread mHandlerThread;
final MainHandler mHandler;
final Handler mUiHandler;
final ActivityManagerConstants mConstants;
PackageManagerInternal mPackageManagerInt;
// VoiceInteraction session ID that changes for each new request except when
// being called for multiwindow assist in a single session.
private int mViSessionId = 1000;
final boolean mPermissionReviewRequired;
private static String sTheRealBuildSerial = Build.UNKNOWN;
/**
* Current global configuration information. Contains general settings for the entire system,
* also corresponds to the merged configuration of the default display.
*/
Configuration getGlobalConfiguration() {
return mStackSupervisor.getConfiguration();
}
final class KillHandler extends Handler {
static final int KILL_PROCESS_GROUP_MSG = 4000;
public KillHandler(Looper looper) {
super(looper, null, true);
}
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case KILL_PROCESS_GROUP_MSG:
{
Trace.traceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER, "killProcessGroup");
Process.killProcessGroup(msg.arg1 /* uid */, msg.arg2 /* pid */);
Trace.traceEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER);
}
break;
default:
super.handleMessage(msg);
}
}
}
final class UiHandler extends Handler {
public UiHandler() {
super(com.android.server.UiThread.get().getLooper(), null, true);
}
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case SHOW_ERROR_UI_MSG: {
mAppErrors.handleShowAppErrorUi(msg);
ensureBootCompleted();
} break;
case SHOW_NOT_RESPONDING_UI_MSG: {
mAppErrors.handleShowAnrUi(msg);
ensureBootCompleted();
} break;
case SHOW_STRICT_MODE_VIOLATION_UI_MSG: {
HashMap<String, Object> data = (HashMap<String, Object>) msg.obj;
synchronized (ActivityManagerService.this) {
ProcessRecord proc = (ProcessRecord) data.get("app");
if (proc == null) {
Slog.e(TAG, "App not found when showing strict mode dialog.");
break;
}
if (proc.crashDialog != null) {
Slog.e(TAG, "App already has strict mode dialog: " + proc);
return;
}
AppErrorResult res = (AppErrorResult) data.get("result");
if (mShowDialogs && !mSleeping && !mShuttingDown) {
Dialog d = new StrictModeViolationDialog(mUiContext,
ActivityManagerService.this, res, proc);
d.show();
proc.crashDialog = d;
} else {
// The device is asleep, so just pretend that the user
// saw a crash dialog and hit "force quit".
res.set(0);
}
}
ensureBootCompleted();
} break;
case SHOW_FACTORY_ERROR_UI_MSG: {
Dialog d = new FactoryErrorDialog(
mUiContext, msg.getData().getCharSequence("msg"));
d.show();
ensureBootCompleted();
} break;
case WAIT_FOR_DEBUGGER_UI_MSG: {
synchronized (ActivityManagerService.this) {
ProcessRecord app = (ProcessRecord)msg.obj;
if (msg.arg1 != 0) {
if (!app.waitedForDebugger) {
Dialog d = new AppWaitingForDebuggerDialog(
ActivityManagerService.this,
mUiContext, app);
app.waitDialog = d;
app.waitedForDebugger = true;
d.show();
}
} else {
if (app.waitDialog != null) {
app.waitDialog.dismiss();
app.waitDialog = null;
}
}
}
} break;
case SHOW_UID_ERROR_UI_MSG: {
if (mShowDialogs) {
AlertDialog d = new BaseErrorDialog(mUiContext);
d.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ERROR);
d.setCancelable(false);
d.setTitle(mUiContext.getText(R.string.android_system_label));
d.setMessage(mUiContext.getText(R.string.system_error_wipe_data));
d.setButton(DialogInterface.BUTTON_POSITIVE, mUiContext.getText(R.string.ok),
obtainMessage(DISMISS_DIALOG_UI_MSG, d));
d.show();
}
} break;
case SHOW_FINGERPRINT_ERROR_UI_MSG: {
if (mShowDialogs) {
AlertDialog d = new BaseErrorDialog(mUiContext);
d.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ERROR);
d.setCancelable(false);
d.setTitle(mUiContext.getText(R.string.android_system_label));
d.setMessage(mUiContext.getText(R.string.system_error_manufacturer));
d.setButton(DialogInterface.BUTTON_POSITIVE, mUiContext.getText(R.string.ok),
obtainMessage(DISMISS_DIALOG_UI_MSG, d));
d.show();
}
} break;
case SHOW_COMPAT_MODE_DIALOG_UI_MSG: {
synchronized (ActivityManagerService.this) {
ActivityRecord ar = (ActivityRecord) msg.obj;
if (mCompatModeDialog != null) {
if (mCompatModeDialog.mAppInfo.packageName.equals(
ar.info.applicationInfo.packageName)) {
return;
}
mCompatModeDialog.dismiss();
mCompatModeDialog = null;
}
if (ar != null && false) {
if (mCompatModePackages.getPackageAskCompatModeLocked(
ar.packageName)) {
int mode = mCompatModePackages.computeCompatModeLocked(
ar.info.applicationInfo);
if (mode == ActivityManager.COMPAT_MODE_DISABLED
|| mode == ActivityManager.COMPAT_MODE_ENABLED) {
mCompatModeDialog = new CompatModeDialog(
ActivityManagerService.this, mUiContext,
ar.info.applicationInfo);
mCompatModeDialog.show();
}
}
}
}
break;
}
case SHOW_UNSUPPORTED_DISPLAY_SIZE_DIALOG_MSG: {
synchronized (ActivityManagerService.this) {
final ActivityRecord ar = (ActivityRecord) msg.obj;
if (mUnsupportedDisplaySizeDialog != null) {
mUnsupportedDisplaySizeDialog.dismiss();
mUnsupportedDisplaySizeDialog = null;
}
if (ar != null && mCompatModePackages.getPackageNotifyUnsupportedZoomLocked(
ar.packageName)) {
// TODO(multi-display): Show dialog on appropriate display.
mUnsupportedDisplaySizeDialog = new UnsupportedDisplaySizeDialog(
ActivityManagerService.this, mUiContext, ar.info.applicationInfo);
mUnsupportedDisplaySizeDialog.show();
}
}
break;
}
case DISMISS_DIALOG_UI_MSG: {
final Dialog d = (Dialog) msg.obj;
d.dismiss();
break;
}
case DISPATCH_PROCESSES_CHANGED_UI_MSG: {
dispatchProcessesChanged();
break;
}
case DISPATCH_PROCESS_DIED_UI_MSG: {
final int pid = msg.arg1;
final int uid = msg.arg2;
dispatchProcessDied(pid, uid);
break;
}
case DISPATCH_UIDS_CHANGED_UI_MSG: {
dispatchUidsChanged();
} break;
case DISPATCH_OOM_ADJ_OBSERVER_MSG: {
dispatchOomAdjObserver((String)msg.obj);
} break;
case PUSH_TEMP_WHITELIST_UI_MSG: {
pushTempWhitelist();
} break;
}
}
}
final class MainHandler extends Handler {
public MainHandler(Looper looper) {
super(looper, null, true);
}
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case UPDATE_CONFIGURATION_MSG: {
final ContentResolver resolver = mContext.getContentResolver();
Settings.System.putConfigurationForUser(resolver, (Configuration) msg.obj,
msg.arg1);
} break;
case GC_BACKGROUND_PROCESSES_MSG: {
synchronized (ActivityManagerService.this) {
performAppGcsIfAppropriateLocked();
}
} break;
case SERVICE_TIMEOUT_MSG: {
mServices.serviceTimeout((ProcessRecord)msg.obj);
} break;
case SERVICE_FOREGROUND_TIMEOUT_MSG: {
mServices.serviceForegroundTimeout((ServiceRecord)msg.obj);
} break;
case SERVICE_FOREGROUND_CRASH_MSG: {
mServices.serviceForegroundCrash((ProcessRecord)msg.obj);
} break;
case DISPATCH_PENDING_INTENT_CANCEL_MSG: {
RemoteCallbackList<IResultReceiver> callbacks
= (RemoteCallbackList<IResultReceiver>)msg.obj;
int N = callbacks.beginBroadcast();
for (int i = 0; i < N; i++) {
try {
callbacks.getBroadcastItem(i).send(Activity.RESULT_CANCELED, null);
} catch (RemoteException e) {
}
}
callbacks.finishBroadcast();
} break;
case UPDATE_TIME_ZONE: {
synchronized (ActivityManagerService.this) {
for (int i = mLruProcesses.size() - 1 ; i >= 0 ; i--) {
ProcessRecord r = mLruProcesses.get(i);
if (r.thread != null) {
try {
r.thread.updateTimeZone();
} catch (RemoteException ex) {
Slog.w(TAG, "Failed to update time zone for: " + r.info.processName);
}
}
}
}
} break;
case CLEAR_DNS_CACHE_MSG: {
synchronized (ActivityManagerService.this) {
for (int i = mLruProcesses.size() - 1 ; i >= 0 ; i--) {
ProcessRecord r = mLruProcesses.get(i);
if (r.thread != null) {
try {
r.thread.clearDnsCache();
} catch (RemoteException ex) {
Slog.w(TAG, "Failed to clear dns cache for: " + r.info.processName);
}
}
}
}
} break;
case UPDATE_HTTP_PROXY_MSG: {
ProxyInfo proxy = (ProxyInfo)msg.obj;
String host = "";
String port = "";
String exclList = "";
Uri pacFileUrl = Uri.EMPTY;
if (proxy != null) {
host = proxy.getHost();
port = Integer.toString(proxy.getPort());
exclList = proxy.getExclusionListAsString();
pacFileUrl = proxy.getPacFileUrl();
}
synchronized (ActivityManagerService.this) {
for (int i = mLruProcesses.size() - 1 ; i >= 0 ; i--) {
ProcessRecord r = mLruProcesses.get(i);
// Don't dispatch to isolated processes as they can't access
// ConnectivityManager and don't have network privileges anyway.
if (r.thread != null && !r.isolated) {
try {
r.thread.setHttpProxy(host, port, exclList, pacFileUrl);
} catch (RemoteException ex) {
Slog.w(TAG, "Failed to update http proxy for: " +
r.info.processName);
}
}
}
}
} break;
case PROC_START_TIMEOUT_MSG: {
ProcessRecord app = (ProcessRecord)msg.obj;
synchronized (ActivityManagerService.this) {
processStartTimedOutLocked(app);
}
} break;
case CONTENT_PROVIDER_PUBLISH_TIMEOUT_MSG: {
ProcessRecord app = (ProcessRecord)msg.obj;
synchronized (ActivityManagerService.this) {
processContentProviderPublishTimedOutLocked(app);
}
} break;
case DO_PENDING_ACTIVITY_LAUNCHES_MSG: {
synchronized (ActivityManagerService.this) {
mActivityStarter.doPendingActivityLaunchesLocked(true);
}
} break;
case KILL_APPLICATION_MSG: {
synchronized (ActivityManagerService.this) {
final int appId = msg.arg1;
final int userId = msg.arg2;
Bundle bundle = (Bundle)msg.obj;
String pkg = bundle.getString("pkg");
String reason = bundle.getString("reason");
forceStopPackageLocked(pkg, appId, false, false, true, false,
false, userId, reason);
}
} break;
case FINALIZE_PENDING_INTENT_MSG: {
((PendingIntentRecord)msg.obj).completeFinalize();
} break;
case POST_HEAVY_NOTIFICATION_MSG: {
INotificationManager inm = NotificationManager.getService();
if (inm == null) {
return;
}
ActivityRecord root = (ActivityRecord)msg.obj;
ProcessRecord process = root.app;
if (process == null) {
return;
}
try {
Context context = mContext.createPackageContext(process.info.packageName, 0);
String text = mContext.getString(R.string.heavy_weight_notification,
context.getApplicationInfo().loadLabel(context.getPackageManager()));
Notification notification =
new Notification.Builder(context,
SystemNotificationChannels.HEAVY_WEIGHT_APP)
.setSmallIcon(com.android.internal.R.drawable.stat_sys_adb)
.setWhen(0)
.setOngoing(true)
.setTicker(text)
.setColor(mContext.getColor(
com.android.internal.R.color.system_notification_accent_color))
.setContentTitle(text)
.setContentText(
mContext.getText(R.string.heavy_weight_notification_detail))
.setContentIntent(PendingIntent.getActivityAsUser(mContext, 0,
root.intent, PendingIntent.FLAG_CANCEL_CURRENT, null,
new UserHandle(root.userId)))
.build();
try {
inm.enqueueNotificationWithTag("android", "android", null,
SystemMessage.NOTE_HEAVY_WEIGHT_NOTIFICATION,
notification, root.userId);
} catch (RuntimeException e) {
Slog.w(ActivityManagerService.TAG,
"Error showing notification for heavy-weight app", e);
} catch (RemoteException e) {
}
} catch (NameNotFoundException e) {
Slog.w(TAG, "Unable to create context for heavy notification", e);
}
} break;
case CANCEL_HEAVY_NOTIFICATION_MSG: {
INotificationManager inm = NotificationManager.getService();
if (inm == null) {
return;
}
try {
inm.cancelNotificationWithTag("android", null,
SystemMessage.NOTE_HEAVY_WEIGHT_NOTIFICATION, msg.arg1);
} catch (RuntimeException e) {
Slog.w(ActivityManagerService.TAG,
"Error canceling notification for service", e);
} catch (RemoteException e) {
}
} break;
case CHECK_EXCESSIVE_POWER_USE_MSG: {
synchronized (ActivityManagerService.this) {
checkExcessivePowerUsageLocked();
removeMessages(CHECK_EXCESSIVE_POWER_USE_MSG);
Message nmsg = obtainMessage(CHECK_EXCESSIVE_POWER_USE_MSG);
sendMessageDelayed(nmsg, mConstants.POWER_CHECK_INTERVAL);
}
} break;
case REPORT_MEM_USAGE_MSG: {
final ArrayList<ProcessMemInfo> memInfos = (ArrayList<ProcessMemInfo>)msg.obj;
Thread thread = new Thread() {
@Override public void run() {
reportMemUsage(memInfos);
}
};
thread.start();
break;
}
case IMMERSIVE_MODE_LOCK_MSG: {
final boolean nextState = (msg.arg1 != 0);
if (mUpdateLock.isHeld() != nextState) {
if (DEBUG_IMMERSIVE) Slog.d(TAG_IMMERSIVE,
"Applying new update lock state '" + nextState
+ "' for " + (ActivityRecord)msg.obj);
if (nextState) {
mUpdateLock.acquire();
} else {
mUpdateLock.release();
}
}
break;
}
case PERSIST_URI_GRANTS_MSG: {
writeGrantedUriPermissions();
break;
}
case REQUEST_ALL_PSS_MSG: {
synchronized (ActivityManagerService.this) {
requestPssAllProcsLocked(SystemClock.uptimeMillis(), true, false);
}
break;
}
case UPDATE_TIME_PREFERENCE_MSG: {
// The user's time format preference might have changed.
// For convenience we re-use the Intent extra values.
synchronized (ActivityManagerService.this) {
for (int i = mLruProcesses.size() - 1; i >= 0; i--) {
ProcessRecord r = mLruProcesses.get(i);
if (r.thread != null) {
try {
r.thread.updateTimePrefs(msg.arg1);
} catch (RemoteException ex) {
Slog.w(TAG, "Failed to update preferences for: "
+ r.info.processName);
}
}
}
}
break;
}
case ENTER_ANIMATION_COMPLETE_MSG: {
synchronized (ActivityManagerService.this) {
ActivityRecord r = ActivityRecord.forTokenLocked((IBinder) msg.obj);
if (r != null && r.app != null && r.app.thread != null) {
try {
r.app.thread.scheduleEnterAnimationComplete(r.appToken);
} catch (RemoteException e) {
}
}
}
break;
}
case FINISH_BOOTING_MSG: {
if (msg.arg1 != 0) {
Trace.traceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER, "FinishBooting");
finishBooting();
Trace.traceEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER);
}
if (msg.arg2 != 0) {
enableScreenAfterBoot();
}
break;
}
case SEND_LOCALE_TO_MOUNT_DAEMON_MSG: {
try {
Locale l = (Locale) msg.obj;
IBinder service = ServiceManager.getService("mount");
IStorageManager storageManager = IStorageManager.Stub.asInterface(service);
Log.d(TAG, "Storing locale " + l.toLanguageTag() + " for decryption UI");
storageManager.setField(StorageManager.SYSTEM_LOCALE_KEY, l.toLanguageTag());
} catch (RemoteException e) {
Log.e(TAG, "Error storing locale for decryption UI", e);
}
break;
}
case NOTIFY_CLEARTEXT_NETWORK_MSG: {
final int uid = msg.arg1;
final byte[] firstPacket = (byte[]) msg.obj;
synchronized (mPidsSelfLocked) {
for (int i = 0; i < mPidsSelfLocked.size(); i++) {
final ProcessRecord p = mPidsSelfLocked.valueAt(i);
if (p.uid == uid) {
try {
p.thread.notifyCleartextNetwork(firstPacket);
} catch (RemoteException ignored) {
}
}
}
}
break;
}
case POST_DUMP_HEAP_NOTIFICATION_MSG: {
final String procName;
final int uid;
final long memLimit;
final String reportPackage;
synchronized (ActivityManagerService.this) {
procName = mMemWatchDumpProcName;
uid = mMemWatchDumpUid;
Pair<Long, String> val = mMemWatchProcesses.get(procName, uid);
if (val == null) {
val = mMemWatchProcesses.get(procName, 0);
}
if (val != null) {
memLimit = val.first;
reportPackage = val.second;
} else {
memLimit = 0;
reportPackage = null;
}
}
if (procName == null) {
return;
}
if (DEBUG_PSS) Slog.d(TAG_PSS,
"Showing dump heap notification from " + procName + "/" + uid);
INotificationManager inm = NotificationManager.getService();
if (inm == null) {
return;
}
String text = mContext.getString(R.string.dump_heap_notification, procName);
Intent deleteIntent = new Intent();
deleteIntent.setAction(DumpHeapActivity.ACTION_DELETE_DUMPHEAP);
Intent intent = new Intent();
intent.setClassName("android", DumpHeapActivity.class.getName());
intent.putExtra(DumpHeapActivity.KEY_PROCESS, procName);
intent.putExtra(DumpHeapActivity.KEY_SIZE, memLimit);
if (reportPackage != null) {
intent.putExtra(DumpHeapActivity.KEY_DIRECT_LAUNCH, reportPackage);
}
int userId = UserHandle.getUserId(uid);
Notification notification =
new Notification.Builder(mContext, SystemNotificationChannels.DEVELOPER)
.setSmallIcon(com.android.internal.R.drawable.stat_sys_adb)
.setWhen(0)
.setOngoing(true)
.setAutoCancel(true)
.setTicker(text)
.setColor(mContext.getColor(
com.android.internal.R.color.system_notification_accent_color))
.setContentTitle(text)
.setContentText(
mContext.getText(R.string.dump_heap_notification_detail))
.setContentIntent(PendingIntent.getActivityAsUser(mContext, 0,
intent, PendingIntent.FLAG_CANCEL_CURRENT, null,
new UserHandle(userId)))
.setDeleteIntent(PendingIntent.getBroadcastAsUser(mContext, 0,
deleteIntent, 0, UserHandle.SYSTEM))
.build();
try {
inm.enqueueNotificationWithTag("android", "android", null,
SystemMessage.NOTE_DUMP_HEAP_NOTIFICATION,
notification, userId);
} catch (RuntimeException e) {
Slog.w(ActivityManagerService.TAG,
"Error showing notification for dump heap", e);
} catch (RemoteException e) {
}
} break;
case DELETE_DUMPHEAP_MSG: {
revokeUriPermission(ActivityThread.currentActivityThread().getApplicationThread(),
null, DumpHeapActivity.JAVA_URI,
Intent.FLAG_GRANT_READ_URI_PERMISSION
| Intent.FLAG_GRANT_WRITE_URI_PERMISSION,
UserHandle.myUserId());
synchronized (ActivityManagerService.this) {
mMemWatchDumpFile = null;
mMemWatchDumpProcName = null;
mMemWatchDumpPid = -1;
mMemWatchDumpUid = -1;
}
} break;
case REPORT_TIME_TRACKER_MSG: {
AppTimeTracker tracker = (AppTimeTracker)msg.obj;
tracker.deliverResult(mContext);
} break;
case SHUTDOWN_UI_AUTOMATION_CONNECTION_MSG: {
IUiAutomationConnection connection = (IUiAutomationConnection) msg.obj;
try {
connection.shutdown();
} catch (RemoteException e) {
Slog.w(TAG, "Error shutting down UiAutomationConnection");
}
// Only a UiAutomation can set this flag and now that
// it is finished we make sure it is reset to its default.
mUserIsMonkey = false;
} break;
case IDLE_UIDS_MSG: {
idleUids();
} break;
case VR_MODE_CHANGE_MSG: {
if (!mVrController.onVrModeChanged((ActivityRecord) msg.obj)) {
return;
}
synchronized (ActivityManagerService.this) {
final boolean disableNonVrUi = mVrController.shouldDisableNonVrUiLocked();
mWindowManager.disableNonVrUi(disableNonVrUi);
if (disableNonVrUi) {
// If we are in a VR mode where Picture-in-Picture mode is unsupported,
// then remove the pinned stack.
mStackSupervisor.removeStacksInWindowingModes(WINDOWING_MODE_PINNED);
}
}
} break;
case NOTIFY_VR_SLEEPING_MSG: {
notifyVrManagerOfSleepState(msg.arg1 != 0);
} break;
case NOTIFY_VR_KEYGUARD_MSG: {
notifyVrManagerOfKeyguardState(msg.arg1 != 0);
} break;
case HANDLE_TRUST_STORAGE_UPDATE_MSG: {
synchronized (ActivityManagerService.this) {
for (int i = mLruProcesses.size() - 1 ; i >= 0 ; i--) {
ProcessRecord r = mLruProcesses.get(i);
if (r.thread != null) {
try {
r.thread.handleTrustStorageUpdate();
} catch (RemoteException ex) {
Slog.w(TAG, "Failed to handle trust storage update for: " +
r.info.processName);
}
}
}
}
} break;
}
}
};
static final int COLLECT_PSS_BG_MSG = 1;
final Handler mBgHandler = new Handler(BackgroundThread.getHandler().getLooper()) {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case COLLECT_PSS_BG_MSG: {
long start = SystemClock.uptimeMillis();
MemInfoReader memInfo = null;
synchronized (ActivityManagerService.this) {
if (mFullPssPending) {
mFullPssPending = false;
memInfo = new MemInfoReader();
}
}
if (memInfo != null) {
updateCpuStatsNow();
long nativeTotalPss = 0;
final List<ProcessCpuTracker.Stats> stats;
synchronized (mProcessCpuTracker) {
stats = mProcessCpuTracker.getStats( (st)-> {
return st.vsize > 0 && st.uid < FIRST_APPLICATION_UID;
});
}
final int N = stats.size();
for (int j = 0; j < N; j++) {
synchronized (mPidsSelfLocked) {
if (mPidsSelfLocked.indexOfKey(stats.get(j).pid) >= 0) {
// This is one of our own processes; skip it.
continue;
}
}
nativeTotalPss += Debug.getPss(stats.get(j).pid, null, null);
}
memInfo.readMemInfo();
synchronized (ActivityManagerService.this) {
if (DEBUG_PSS) Slog.d(TAG_PSS, "Collected native and kernel memory in "
+ (SystemClock.uptimeMillis()-start) + "ms");
final long cachedKb = memInfo.getCachedSizeKb();
final long freeKb = memInfo.getFreeSizeKb();
final long zramKb = memInfo.getZramTotalSizeKb();
final long kernelKb = memInfo.getKernelUsedSizeKb();
EventLogTags.writeAmMeminfo(cachedKb*1024, freeKb*1024, zramKb*1024,
kernelKb*1024, nativeTotalPss*1024);
mProcessStats.addSysMemUsageLocked(cachedKb, freeKb, zramKb, kernelKb,
nativeTotalPss);
}
}
int num = 0;
long[] tmp = new long[2];
do {
ProcessRecord proc;
int procState;
int pid;
long lastPssTime;
synchronized (ActivityManagerService.this) {
if (mPendingPssProcesses.size() <= 0) {
if (mTestPssMode || DEBUG_PSS) Slog.d(TAG_PSS,
"Collected PSS of " + num + " processes in "
+ (SystemClock.uptimeMillis() - start) + "ms");
mPendingPssProcesses.clear();
return;
}
proc = mPendingPssProcesses.remove(0);
procState = proc.pssProcState;
lastPssTime = proc.lastPssTime;
if (proc.thread != null && procState == proc.setProcState
&& (lastPssTime+ProcessList.PSS_SAFE_TIME_FROM_STATE_CHANGE)
< SystemClock.uptimeMillis()) {
pid = proc.pid;
} else {
proc = null;
pid = 0;
}
}
if (proc != null) {
long pss = Debug.getPss(pid, tmp, null);
synchronized (ActivityManagerService.this) {
if (pss != 0 && proc.thread != null && proc.setProcState == procState
&& proc.pid == pid && proc.lastPssTime == lastPssTime) {
num++;
recordPssSampleLocked(proc, procState, pss, tmp[0], tmp[1],
SystemClock.uptimeMillis());
}
}
}
} while (true);
}
}
}
};
public void setSystemProcess() {
try {
ServiceManager.addService(Context.ACTIVITY_SERVICE, this, /* allowIsolated= */ true,
DUMP_FLAG_PRIORITY_CRITICAL | DUMP_FLAG_PRIORITY_NORMAL | DUMP_FLAG_PROTO);
ServiceManager.addService(ProcessStats.SERVICE_NAME, mProcessStats);
ServiceManager.addService("meminfo", new MemBinder(this), /* allowIsolated= */ false,
DUMP_FLAG_PRIORITY_HIGH | DUMP_FLAG_PRIORITY_NORMAL);
ServiceManager.addService("gfxinfo", new GraphicsBinder(this));
ServiceManager.addService("dbinfo", new DbBinder(this));
if (MONITOR_CPU_USAGE) {
ServiceManager.addService("cpuinfo", new CpuBinder(this),
/* allowIsolated= */ false, DUMP_FLAG_PRIORITY_CRITICAL);
}
ServiceManager.addService("permission", new PermissionController(this));
ServiceManager.addService("processinfo", new ProcessInfoService(this));
ApplicationInfo info = mContext.getPackageManager().getApplicationInfo(
"android", STOCK_PM_FLAGS | MATCH_SYSTEM_ONLY);
mSystemThread.installSystemApplicationInfo(info, getClass().getClassLoader());
synchronized (this) {
ProcessRecord app = newProcessRecordLocked(info, info.processName, false, 0);
app.persistent = true;
app.pid = MY_PID;
app.maxAdj = ProcessList.SYSTEM_ADJ;
app.makeActive(mSystemThread.getApplicationThread(), mProcessStats);
synchronized (mPidsSelfLocked) {
mPidsSelfLocked.put(app.pid, app);
}
updateLruProcessLocked(app, false, null);
updateOomAdjLocked();
}
} catch (PackageManager.NameNotFoundException e) {
throw new RuntimeException(
"Unable to find android system package", e);
}
}
public void setWindowManager(WindowManagerService wm) {
synchronized (this) {
mWindowManager = wm;
mStackSupervisor.setWindowManager(wm);
mLockTaskController.setWindowManager(wm);
}
}
public void setUsageStatsManager(UsageStatsManagerInternal usageStatsManager) {
mUsageStatsService = usageStatsManager;
}
public void startObservingNativeCrashes() {
final NativeCrashListener ncl = new NativeCrashListener(this);
ncl.start();
}
public IAppOpsService getAppOpsService() {
return mAppOpsService;
}
static class MemBinder extends Binder {
ActivityManagerService mActivityManagerService;
private final PriorityDump.PriorityDumper mPriorityDumper =
new PriorityDump.PriorityDumper() {
@Override
public void dumpNormal(FileDescriptor fd, PrintWriter pw, String[] args,
boolean asProto) {
if (asProto) return;
mActivityManagerService.dumpApplicationMemoryUsage(fd, pw, " ", args, false, null);
}
};
MemBinder(ActivityManagerService activityManagerService) {
mActivityManagerService = activityManagerService;
}
@Override
protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
if (!DumpUtils.checkDumpAndUsageStatsPermission(mActivityManagerService.mContext,
"meminfo", pw)) return;
PriorityDump.dump(mPriorityDumper, fd, pw, args);
}
}
static class GraphicsBinder extends Binder {
ActivityManagerService mActivityManagerService;
GraphicsBinder(ActivityManagerService activityManagerService) {
mActivityManagerService = activityManagerService;
}
@Override
protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
if (!DumpUtils.checkDumpAndUsageStatsPermission(mActivityManagerService.mContext,
"gfxinfo", pw)) return;
mActivityManagerService.dumpGraphicsHardwareUsage(fd, pw, args);
}
}
static class DbBinder extends Binder {
ActivityManagerService mActivityManagerService;
DbBinder(ActivityManagerService activityManagerService) {
mActivityManagerService = activityManagerService;
}
@Override
protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
if (!DumpUtils.checkDumpAndUsageStatsPermission(mActivityManagerService.mContext,
"dbinfo", pw)) return;
mActivityManagerService.dumpDbInfo(fd, pw, args);
}
}
static class CpuBinder extends Binder {
ActivityManagerService mActivityManagerService;
private final PriorityDump.PriorityDumper mPriorityDumper =
new PriorityDump.PriorityDumper() {
@Override
public void dumpCritical(FileDescriptor fd, PrintWriter pw, String[] args,
boolean asProto) {
if (asProto) return;
if (!DumpUtils.checkDumpAndUsageStatsPermission(mActivityManagerService.mContext,
"cpuinfo", pw)) return;
synchronized (mActivityManagerService.mProcessCpuTracker) {
pw.print(mActivityManagerService.mProcessCpuTracker.printCurrentLoad());
pw.print(mActivityManagerService.mProcessCpuTracker.printCurrentState(
SystemClock.uptimeMillis()));
}
}
};
CpuBinder(ActivityManagerService activityManagerService) {
mActivityManagerService = activityManagerService;
}
@Override
protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
PriorityDump.dump(mPriorityDumper, fd, pw, args);
}
}
public static final class Lifecycle extends SystemService {
private final ActivityManagerService mService;
public Lifecycle(Context context) {
super(context);
mService = new ActivityManagerService(context);
}
@Override
public void onStart() {
mService.start();
}
@Override
public void onCleanupUser(int userId) {
mService.mBatteryStatsService.onCleanupUser(userId);
}
public ActivityManagerService getService() {
return mService;
}
}
@VisibleForTesting
public ActivityManagerService(Injector injector) {
mInjector = injector;
mContext = mInjector.getContext();
mUiContext = null;
GL_ES_VERSION = 0;
mActivityStarter = null;
mAppErrors = null;
mAppOpsService = mInjector.getAppOpsService(null, null);
mBatteryStatsService = null;
mCompatModePackages = null;
mConstants = null;
mGrantFile = null;
mHandler = null;
mHandlerThread = null;
mIntentFirewall = null;
mKeyguardController = null;
mPermissionReviewRequired = false;
mProcessCpuThread = null;
mProcessStats = null;
mProviderMap = null;
mRecentTasks = null;
mServices = null;
mStackSupervisor = null;
mSystemThread = null;
mTaskChangeNotificationController = null;
mUiHandler = injector.getUiHandler(null);
mUserController = null;
mVrController = null;
mLockTaskController = null;
}
// Note: This method is invoked on the main thread but may need to attach various
// handlers to other threads. So take care to be explicit about the looper.
public ActivityManagerService(Context systemContext) {
LockGuard.installLock(this, LockGuard.INDEX_ACTIVITY);
mInjector = new Injector();
mContext = systemContext;
mFactoryTest = FactoryTest.getMode();
mSystemThread = ActivityThread.currentActivityThread();
mUiContext = mSystemThread.getSystemUiContext();
Slog.i(TAG, "Memory class: " + ActivityManager.staticGetMemoryClass());
mPermissionReviewRequired = mContext.getResources().getBoolean(
com.android.internal.R.bool.config_permissionReviewRequired);
mHandlerThread = new ServiceThread(TAG,
THREAD_PRIORITY_FOREGROUND, false /*allowIo*/);
mHandlerThread.start();
mHandler = new MainHandler(mHandlerThread.getLooper());
mUiHandler = mInjector.getUiHandler(this);
mConstants = new ActivityManagerConstants(this, mHandler);
/* static; one-time init here */
if (sKillHandler == null) {
sKillThread = new ServiceThread(TAG + ":kill",
THREAD_PRIORITY_BACKGROUND, true /* allowIo */);
sKillThread.start();
sKillHandler = new KillHandler(sKillThread.getLooper());
}
mFgBroadcastQueue = new BroadcastQueue(this, mHandler,
"foreground", BROADCAST_FG_TIMEOUT, false);
mBgBroadcastQueue = new BroadcastQueue(this, mHandler,
"background", BROADCAST_BG_TIMEOUT, true);
mBroadcastQueues[0] = mFgBroadcastQueue;
mBroadcastQueues[1] = mBgBroadcastQueue;
mServices = new ActiveServices(this);
mProviderMap = new ProviderMap(this);
mAppErrors = new AppErrors(mUiContext, this);
// TODO: Move creation of battery stats service outside of activity manager service.
File dataDir = Environment.getDataDirectory();
File systemDir = new File(dataDir, "system");
systemDir.mkdirs();
mBatteryStatsService = new BatteryStatsService(systemContext, systemDir, mHandler);
mBatteryStatsService.getActiveStatistics().readLocked();
mBatteryStatsService.scheduleWriteToDisk();
mOnBattery = DEBUG_POWER ? true
: mBatteryStatsService.getActiveStatistics().getIsOnBattery();
mBatteryStatsService.getActiveStatistics().setCallback(this);
mProcessStats = new ProcessStatsService(this, new File(systemDir, "procstats"));
mAppOpsService = mInjector.getAppOpsService(new File(systemDir, "appops.xml"), mHandler);
mAppOpsService.startWatchingMode(AppOpsManager.OP_RUN_IN_BACKGROUND, null,
new IAppOpsCallback.Stub() {
@Override public void opChanged(int op, int uid, String packageName) {
if (op == AppOpsManager.OP_RUN_IN_BACKGROUND && packageName != null) {
if (mAppOpsService.checkOperation(op, uid, packageName)
!= AppOpsManager.MODE_ALLOWED) {
runInBackgroundDisabled(uid);
}
}
}
});
mGrantFile = new AtomicFile(new File(systemDir, "urigrants.xml"));
mUserController = new UserController(this);
mVrController = new VrController(this);
GL_ES_VERSION = SystemProperties.getInt("ro.opengles.version",
ConfigurationInfo.GL_ES_VERSION_UNDEFINED);
if (SystemProperties.getInt("sys.use_fifo_ui", 0) != 0) {
mUseFifoUiScheduling = true;
}
mTrackingAssociations = "1".equals(SystemProperties.get("debug.track-associations"));
mTempConfig.setToDefaults();
mTempConfig.setLocales(LocaleList.getDefault());
mConfigurationSeq = mTempConfig.seq = 1;
mStackSupervisor = createStackSupervisor();
mStackSupervisor.onConfigurationChanged(mTempConfig);
mKeyguardController = mStackSupervisor.mKeyguardController;
mCompatModePackages = new CompatModePackages(this, systemDir, mHandler);
mIntentFirewall = new IntentFirewall(new IntentFirewallInterface(), mHandler);
mTaskChangeNotificationController =
new TaskChangeNotificationController(this, mStackSupervisor, mHandler);
mActivityStarter = new ActivityStarter(this);
mRecentTasks = createRecentTasks();
mStackSupervisor.setRecentTasks(mRecentTasks);
mLockTaskController = new LockTaskController(mContext, mStackSupervisor, mHandler);
mProcessCpuThread = new Thread("CpuTracker") {
@Override
public void run() {
synchronized (mProcessCpuTracker) {
mProcessCpuInitLatch.countDown();
mProcessCpuTracker.init();
}
while (true) {
try {
try {
synchronized(this) {
final long now = SystemClock.uptimeMillis();
long nextCpuDelay = (mLastCpuTime.get()+MONITOR_CPU_MAX_TIME)-now;
long nextWriteDelay = (mLastWriteTime+BATTERY_STATS_TIME)-now;
//Slog.i(TAG, "Cpu delay=" + nextCpuDelay
// + ", write delay=" + nextWriteDelay);
if (nextWriteDelay < nextCpuDelay) {
nextCpuDelay = nextWriteDelay;
}
if (nextCpuDelay > 0) {
mProcessCpuMutexFree.set(true);
this.wait(nextCpuDelay);
}
}
} catch (InterruptedException e) {
}
updateCpuStatsNow();
} catch (Exception e) {
Slog.e(TAG, "Unexpected exception collecting process stats", e);
}
}
}
};
Watchdog.getInstance().addMonitor(this);
Watchdog.getInstance().addThread(mHandler);
}
protected ActivityStackSupervisor createStackSupervisor() {
return new ActivityStackSupervisor(this, mHandler.getLooper());
}
protected RecentTasks createRecentTasks() {
return new RecentTasks(this, mStackSupervisor);
}
RecentTasks getRecentTasks() {
return mRecentTasks;
}
public void setSystemServiceManager(SystemServiceManager mgr) {
mSystemServiceManager = mgr;
}
public void setInstaller(Installer installer) {
mInstaller = installer;
}
private void start() {
removeAllProcessGroups();
mProcessCpuThread.start();
mBatteryStatsService.publish();
mAppOpsService.publish(mContext);
Slog.d("AppOps", "AppOpsService published");
LocalServices.addService(ActivityManagerInternal.class, new LocalService());
// Wait for the synchronized block started in mProcessCpuThread,
// so that any other acccess to mProcessCpuTracker from main thread
// will be blocked during mProcessCpuTracker initialization.
try {
mProcessCpuInitLatch.await();
} catch (InterruptedException e) {
Slog.wtf(TAG, "Interrupted wait during start", e);
Thread.currentThread().interrupt();
throw new IllegalStateException("Interrupted wait during start");
}
}
void onUserStoppedLocked(int userId) {
mRecentTasks.unloadUserDataFromMemoryLocked(userId);
}
public void initPowerManagement() {
mStackSupervisor.initPowerManagement();
mBatteryStatsService.initPowerManagement();
mLocalPowerManager = LocalServices.getService(PowerManagerInternal.class);
PowerManager pm = (PowerManager)mContext.getSystemService(Context.POWER_SERVICE);
mVoiceWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "*voice*");
mVoiceWakeLock.setReferenceCounted(false);
}
private ArraySet<String> getBackgroundLaunchBroadcasts() {
if (mBackgroundLaunchBroadcasts == null) {
mBackgroundLaunchBroadcasts = SystemConfig.getInstance().getAllowImplicitBroadcasts();
}
return mBackgroundLaunchBroadcasts;
}
@Override
public boolean onTransact(int code, Parcel data, Parcel reply, int flags)
throws RemoteException {
if (code == SYSPROPS_TRANSACTION) {
// We need to tell all apps about the system property change.
ArrayList<IBinder> procs = new ArrayList<IBinder>();
synchronized(this) {
final int NP = mProcessNames.getMap().size();
for (int ip=0; ip<NP; ip++) {
SparseArray<ProcessRecord> apps = mProcessNames.getMap().valueAt(ip);
final int NA = apps.size();
for (int ia=0; ia<NA; ia++) {
ProcessRecord app = apps.valueAt(ia);
if (app.thread != null) {
procs.add(app.thread.asBinder());
}
}
}
}
int N = procs.size();
for (int i=0; i<N; i++) {
Parcel data2 = Parcel.obtain();
try {
procs.get(i).transact(IBinder.SYSPROPS_TRANSACTION, data2, null,
Binder.FLAG_ONEWAY);
} catch (RemoteException e) {
}
data2.recycle();
}
}
try {
return super.onTransact(code, data, reply, flags);
} catch (RuntimeException e) {
// The activity manager only throws security exceptions, so let's
// log all others.
if (!(e instanceof SecurityException)) {
Slog.wtf(TAG, "Activity Manager Crash."
+ " UID:" + Binder.getCallingUid()
+ " PID:" + Binder.getCallingPid()
+ " TRANS:" + code, e);
}
throw e;
}
}
void updateCpuStats() {
final long now = SystemClock.uptimeMillis();
if (mLastCpuTime.get() >= now - MONITOR_CPU_MIN_TIME) {
return;
}
if (mProcessCpuMutexFree.compareAndSet(true, false)) {
synchronized (mProcessCpuThread) {
mProcessCpuThread.notify();
}
}
}
void updateCpuStatsNow() {
synchronized (mProcessCpuTracker) {
mProcessCpuMutexFree.set(false);
final long now = SystemClock.uptimeMillis();
boolean haveNewCpuStats = false;
if (MONITOR_CPU_USAGE &&
mLastCpuTime.get() < (now-MONITOR_CPU_MIN_TIME)) {
mLastCpuTime.set(now);
mProcessCpuTracker.update();
if (mProcessCpuTracker.hasGoodLastStats()) {
haveNewCpuStats = true;
//Slog.i(TAG, mProcessCpu.printCurrentState());
//Slog.i(TAG, "Total CPU usage: "
// + mProcessCpu.getTotalCpuPercent() + "%");
// Slog the cpu usage if the property is set.
if ("true".equals(SystemProperties.get("events.cpu"))) {
int user = mProcessCpuTracker.getLastUserTime();
int system = mProcessCpuTracker.getLastSystemTime();
int iowait = mProcessCpuTracker.getLastIoWaitTime();
int irq = mProcessCpuTracker.getLastIrqTime();
int softIrq = mProcessCpuTracker.getLastSoftIrqTime();
int idle = mProcessCpuTracker.getLastIdleTime();
int total = user + system + iowait + irq + softIrq + idle;
if (total == 0) total = 1;
EventLog.writeEvent(EventLogTags.CPU,
((user+system+iowait+irq+softIrq) * 100) / total,
(user * 100) / total,
(system * 100) / total,
(iowait * 100) / total,
(irq * 100) / total,
(softIrq * 100) / total);
}
}
}
final BatteryStatsImpl bstats = mBatteryStatsService.getActiveStatistics();
synchronized(bstats) {
synchronized(mPidsSelfLocked) {
if (haveNewCpuStats) {
if (bstats.startAddingCpuLocked()) {
int totalUTime = 0;
int totalSTime = 0;
final int N = mProcessCpuTracker.countStats();
for (int i=0; i<N; i++) {
ProcessCpuTracker.Stats st = mProcessCpuTracker.getStats(i);
if (!st.working) {
continue;
}
ProcessRecord pr = mPidsSelfLocked.get(st.pid);
totalUTime += st.rel_utime;
totalSTime += st.rel_stime;
if (pr != null) {
BatteryStatsImpl.Uid.Proc ps = pr.curProcBatteryStats;
if (ps == null || !ps.isActive()) {
pr.curProcBatteryStats = ps = bstats.getProcessStatsLocked(
pr.info.uid, pr.processName);
}
ps.addCpuTimeLocked(st.rel_utime, st.rel_stime);
pr.curCpuTime += st.rel_utime + st.rel_stime;
if (pr.lastCpuTime == 0) {
pr.lastCpuTime = pr.curCpuTime;
}
} else {
BatteryStatsImpl.Uid.Proc ps = st.batteryStats;
if (ps == null || !ps.isActive()) {
st.batteryStats = ps = bstats.getProcessStatsLocked(
bstats.mapUid(st.uid), st.name);
}
ps.addCpuTimeLocked(st.rel_utime, st.rel_stime);
}
}
final int userTime = mProcessCpuTracker.getLastUserTime();
final int systemTime = mProcessCpuTracker.getLastSystemTime();
final int iowaitTime = mProcessCpuTracker.getLastIoWaitTime();
final int irqTime = mProcessCpuTracker.getLastIrqTime();
final int softIrqTime = mProcessCpuTracker.getLastSoftIrqTime();
final int idleTime = mProcessCpuTracker.getLastIdleTime();
bstats.finishAddingCpuLocked(totalUTime, totalSTime, userTime,
systemTime, iowaitTime, irqTime, softIrqTime, idleTime);
}
}
}
if (mLastWriteTime < (now-BATTERY_STATS_TIME)) {
mLastWriteTime = now;
mBatteryStatsService.scheduleWriteToDisk();
}
}
}
}
@Override
public void batteryNeedsCpuUpdate() {
updateCpuStatsNow();
}
@Override
public void batteryPowerChanged(boolean onBattery) {
// When plugging in, update the CPU stats first before changing
// the plug state.
updateCpuStatsNow();
synchronized (this) {
synchronized(mPidsSelfLocked) {
mOnBattery = DEBUG_POWER ? true : onBattery;
}
}
}
@Override
public void batterySendBroadcast(Intent intent) {
synchronized (this) {
broadcastIntentLocked(null, null, intent, null, null, 0, null, null, null,
AppOpsManager.OP_NONE, null, false, false,
-1, SYSTEM_UID, UserHandle.USER_ALL);
}
}
/**
* Initialize the application bind args. These are passed to each
* process when the bindApplication() IPC is sent to the process. They're
* lazily setup to make sure the services are running when they're asked for.
*/
private HashMap<String, IBinder> getCommonServicesLocked(boolean isolated) {
// Isolated processes won't get this optimization, so that we don't
// violate the rules about which services they have access to.
if (isolated) {
if (mIsolatedAppBindArgs == null) {
mIsolatedAppBindArgs = new HashMap<>();
mIsolatedAppBindArgs.put("package", ServiceManager.getService("package"));
}
return mIsolatedAppBindArgs;
}
if (mAppBindArgs == null) {
mAppBindArgs = new HashMap<>();
// Setup the application init args
mAppBindArgs.put("package", ServiceManager.getService("package"));
mAppBindArgs.put("window", ServiceManager.getService("window"));
mAppBindArgs.put(Context.ALARM_SERVICE,
ServiceManager.getService(Context.ALARM_SERVICE));
}
return mAppBindArgs;
}
/**
* Update AMS states when an activity is resumed. This should only be called by
* {@link ActivityStack#setResumedActivityLocked} when an activity is resumed.
*/
void setResumedActivityUncheckLocked(ActivityRecord r, String reason) {
final TaskRecord task = r.getTask();
if (task.isActivityTypeStandard()) {
if (mCurAppTimeTracker != r.appTimeTracker) {
// We are switching app tracking. Complete the current one.
if (mCurAppTimeTracker != null) {
mCurAppTimeTracker.stop();
mHandler.obtainMessage(
REPORT_TIME_TRACKER_MSG, mCurAppTimeTracker).sendToTarget();
mStackSupervisor.clearOtherAppTimeTrackers(r.appTimeTracker);
mCurAppTimeTracker = null;
}
if (r.appTimeTracker != null) {
mCurAppTimeTracker = r.appTimeTracker;
startTimeTrackingFocusedActivityLocked();
}
} else {
startTimeTrackingFocusedActivityLocked();
}
} else {
r.appTimeTracker = null;
}
// TODO: VI Maybe r.task.voiceInteractor || r.voiceInteractor != null
// TODO: Probably not, because we don't want to resume voice on switching
// back to this activity
if (task.voiceInteractor != null) {
startRunningVoiceLocked(task.voiceSession, r.info.applicationInfo.uid);
} else {
finishRunningVoiceLocked();
if (mLastResumedActivity != null) {
final IVoiceInteractionSession session;
final TaskRecord lastResumedActivityTask = mLastResumedActivity.getTask();
if (lastResumedActivityTask != null
&& lastResumedActivityTask.voiceSession != null) {
session = lastResumedActivityTask.voiceSession;
} else {
session = mLastResumedActivity.voiceSession;
}
if (session != null) {
// We had been in a voice interaction session, but now focused has
// move to something different. Just finish the session, we can't
// return to it and retain the proper state and synchronization with
// the voice interaction service.
finishVoiceTask(session);
}
}
}
if (mLastResumedActivity != null && r.userId != mLastResumedActivity.userId) {
mUserController.sendForegroundProfileChanged(r.userId);
}
mLastResumedActivity = r;
mWindowManager.setFocusedApp(r.appToken, true);
applyUpdateLockStateLocked(r);
applyUpdateVrModeLocked(r);
EventLogTags.writeAmSetResumedActivity(
r == null ? -1 : r.userId,
r == null ? "NULL" : r.shortComponentName,
reason);
}
@Override
public void setFocusedStack(int stackId) {
enforceCallingPermission(MANAGE_ACTIVITY_STACKS, "setFocusedStack()");
if (DEBUG_FOCUS) Slog.d(TAG_FOCUS, "setFocusedStack: stackId=" + stackId);
final long callingId = Binder.clearCallingIdentity();
try {
synchronized (this) {
final ActivityStack stack = mStackSupervisor.getStack(stackId);
if (stack == null) {
Slog.w(TAG, "setFocusedStack: No stack with id=" + stackId);
return;
}
final ActivityRecord r = stack.topRunningActivityLocked();
if (mStackSupervisor.moveFocusableActivityStackToFrontLocked(r, "setFocusedStack")) {
mStackSupervisor.resumeFocusedStackTopActivityLocked();
}
}
} finally {
Binder.restoreCallingIdentity(callingId);
}
}
@Override
public void setFocusedTask(int taskId) {
enforceCallingPermission(MANAGE_ACTIVITY_STACKS, "setFocusedTask()");
if (DEBUG_FOCUS) Slog.d(TAG_FOCUS, "setFocusedTask: taskId=" + taskId);
final long callingId = Binder.clearCallingIdentity();
try {
synchronized (this) {
final TaskRecord task = mStackSupervisor.anyTaskForIdLocked(taskId);
if (task == null) {
return;
}
final ActivityRecord r = task.topRunningActivityLocked();
if (mStackSupervisor.moveFocusableActivityStackToFrontLocked(r, "setFocusedTask")) {
mStackSupervisor.resumeFocusedStackTopActivityLocked();
}
}
} finally {
Binder.restoreCallingIdentity(callingId);
}
}
/** Sets the task stack listener that gets callbacks when a task stack changes. */
@Override
public void registerTaskStackListener(ITaskStackListener listener) throws RemoteException {
enforceCallerIsRecentsOrHasPermission(MANAGE_ACTIVITY_STACKS,
"registerTaskStackListener()");
mTaskChangeNotificationController.registerTaskStackListener(listener);
}
/**
* Unregister a task stack listener so that it stops receiving callbacks.
*/
@Override
public void unregisterTaskStackListener(ITaskStackListener listener) throws RemoteException {
enforceCallerIsRecentsOrHasPermission(MANAGE_ACTIVITY_STACKS,
"unregisterTaskStackListener()");
mTaskChangeNotificationController.unregisterTaskStackListener(listener);
}
@Override
public void notifyActivityDrawn(IBinder token) {
if (DEBUG_VISIBILITY) Slog.d(TAG_VISIBILITY, "notifyActivityDrawn: token=" + token);
synchronized (this) {
ActivityRecord r = mStackSupervisor.isInAnyStackLocked(token);
if (r != null) {
r.getStack().notifyActivityDrawnLocked(r);
}
}
}
final void applyUpdateLockStateLocked(ActivityRecord r) {
// Modifications to the UpdateLock state are done on our handler, outside
// the activity manager's locks. The new state is determined based on the
// state *now* of the relevant activity record. The object is passed to
// the handler solely for logging detail, not to be consulted/modified.
final boolean nextState = r != null && r.immersive;
mHandler.sendMessage(
mHandler.obtainMessage(IMMERSIVE_MODE_LOCK_MSG, (nextState) ? 1 : 0, 0, r));
}
final void applyUpdateVrModeLocked(ActivityRecord r) {
// VR apps are expected to run in a main display. If an app is turning on VR for
// itself, but lives in a dynamic stack, then make sure that it is moved to the main
// fullscreen stack before enabling VR Mode.
// TODO: The goal of this code is to keep the VR app on the main display. When the
// stack implementation changes in the future, keep in mind that the use of the fullscreen
// stack is a means to move the activity to the main display and a moveActivityToDisplay()
// option would be a better choice here.
if (r.requestedVrComponent != null && r.getDisplayId() != DEFAULT_DISPLAY) {
Slog.i(TAG, "Moving " + r.shortComponentName + " from stack " + r.getStackId()
+ " to main stack for VR");
final ActivityStack stack = mStackSupervisor.getDefaultDisplay().getOrCreateStack(
WINDOWING_MODE_FULLSCREEN, r.getActivityType(), true /* toTop */);
moveTaskToStack(r.getTask().taskId, stack.mStackId, true /* toTop */);
}
mHandler.sendMessage(
mHandler.obtainMessage(VR_MODE_CHANGE_MSG, 0, 0, r));
}
private void sendNotifyVrManagerOfSleepState(boolean isSleeping) {
mHandler.sendMessage(
mHandler.obtainMessage(NOTIFY_VR_SLEEPING_MSG, isSleeping ? 1 : 0, 0));
}
private void notifyVrManagerOfSleepState(boolean isSleeping) {
final VrManagerInternal vrService = LocalServices.getService(VrManagerInternal.class);
if (vrService == null) {
return;
}
vrService.onSleepStateChanged(isSleeping);
}
private void sendNotifyVrManagerOfKeyguardState(boolean isShowing) {
mHandler.sendMessage(
mHandler.obtainMessage(NOTIFY_VR_KEYGUARD_MSG, isShowing ? 1 : 0, 0));
}
private void notifyVrManagerOfKeyguardState(boolean isShowing) {
final VrManagerInternal vrService = LocalServices.getService(VrManagerInternal.class);
if (vrService == null) {
return;
}
vrService.onKeyguardStateChanged(isShowing);
}
final void showAskCompatModeDialogLocked(ActivityRecord r) {
Message msg = Message.obtain();
msg.what = SHOW_COMPAT_MODE_DIALOG_UI_MSG;
msg.obj = r.getTask().askedCompatMode ? null : r;
mUiHandler.sendMessage(msg);
}
final void showUnsupportedZoomDialogIfNeededLocked(ActivityRecord r) {
final Configuration globalConfig = getGlobalConfiguration();
if (globalConfig.densityDpi != DisplayMetrics.DENSITY_DEVICE_STABLE
&& r.appInfo.requiresSmallestWidthDp > globalConfig.smallestScreenWidthDp) {
final Message msg = Message.obtain();
msg.what = SHOW_UNSUPPORTED_DISPLAY_SIZE_DIALOG_MSG;
msg.obj = r;
mUiHandler.sendMessage(msg);
}
}
private int updateLruProcessInternalLocked(ProcessRecord app, long now, int index,
String what, Object obj, ProcessRecord srcApp) {
app.lastActivityTime = now;
if (app.activities.size() > 0) {
// Don't want to touch dependent processes that are hosting activities.
return index;
}
int lrui = mLruProcesses.lastIndexOf(app);
if (lrui < 0) {
Slog.wtf(TAG, "Adding dependent process " + app + " not on LRU list: "
+ what + " " + obj + " from " + srcApp);
return index;
}
if (lrui >= index) {
// Don't want to cause this to move dependent processes *back* in the
// list as if they were less frequently used.
return index;
}
if (lrui >= mLruProcessActivityStart) {
// Don't want to touch dependent processes that are hosting activities.
return index;
}
mLruProcesses.remove(lrui);
if (index > 0) {
index--;
}
if (DEBUG_LRU) Slog.d(TAG_LRU, "Moving dep from " + lrui + " to " + index
+ " in LRU list: " + app);
mLruProcesses.add(index, app);
return index;
}
static void killProcessGroup(int uid, int pid) {
if (sKillHandler != null) {
sKillHandler.sendMessage(
sKillHandler.obtainMessage(KillHandler.KILL_PROCESS_GROUP_MSG, uid, pid));
} else {
Slog.w(TAG, "Asked to kill process group before system bringup!");
Process.killProcessGroup(uid, pid);
}
}
final void removeLruProcessLocked(ProcessRecord app) {
int lrui = mLruProcesses.lastIndexOf(app);
if (lrui >= 0) {
if (!app.killed) {
Slog.wtfStack(TAG, "Removing process that hasn't been killed: " + app);
killProcessQuiet(app.pid);
killProcessGroup(app.uid, app.pid);
}
if (lrui <= mLruProcessActivityStart) {
mLruProcessActivityStart--;
}
if (lrui <= mLruProcessServiceStart) {
mLruProcessServiceStart--;
}
mLruProcesses.remove(lrui);
}
}
final void updateLruProcessLocked(ProcessRecord app, boolean activityChange,
ProcessRecord client) {
final boolean hasActivity = app.activities.size() > 0 || app.hasClientActivities
|| app.treatLikeActivity;
final boolean hasService = false; // not impl yet. app.services.size() > 0;
if (!activityChange && hasActivity) {
// The process has activities, so we are only allowing activity-based adjustments
// to move it. It should be kept in the front of the list with other
// processes that have activities, and we don't want those to change their
// order except due to activity operations.
return;
}
mLruSeq++;
final long now = SystemClock.uptimeMillis();
app.lastActivityTime = now;
// First a quick reject: if the app is already at the position we will
// put it, then there is nothing to do.
if (hasActivity) {
final int N = mLruProcesses.size();
if (N > 0 && mLruProcesses.get(N-1) == app) {
if (DEBUG_LRU) Slog.d(TAG_LRU, "Not moving, already top activity: " + app);
return;
}
} else {
if (mLruProcessServiceStart > 0
&& mLruProcesses.get(mLruProcessServiceStart-1) == app) {
if (DEBUG_LRU) Slog.d(TAG_LRU, "Not moving, already top other: " + app);
return;
}
}
int lrui = mLruProcesses.lastIndexOf(app);
if (app.persistent && lrui >= 0) {
// We don't care about the position of persistent processes, as long as
// they are in the list.
if (DEBUG_LRU) Slog.d(TAG_LRU, "Not moving, persistent: " + app);
return;
}
/* In progress: compute new position first, so we can avoid doing work
if the process is not actually going to move. Not yet working.
int addIndex;
int nextIndex;
boolean inActivity = false, inService = false;
if (hasActivity) {
// Process has activities, put it at the very tipsy-top.
addIndex = mLruProcesses.size();
nextIndex = mLruProcessServiceStart;
inActivity = true;
} else if (hasService) {
// Process has services, put it at the top of the service list.
addIndex = mLruProcessActivityStart;
nextIndex = mLruProcessServiceStart;
inActivity = true;
inService = true;
} else {
// Process not otherwise of interest, it goes to the top of the non-service area.
addIndex = mLruProcessServiceStart;
if (client != null) {
int clientIndex = mLruProcesses.lastIndexOf(client);
if (clientIndex < 0) Slog.d(TAG, "Unknown client " + client + " when updating "
+ app);
if (clientIndex >= 0 && addIndex > clientIndex) {
addIndex = clientIndex;
}
}
nextIndex = addIndex > 0 ? addIndex-1 : addIndex;
}
Slog.d(TAG, "Update LRU at " + lrui + " to " + addIndex + " (act="
+ mLruProcessActivityStart + "): " + app);
*/
if (lrui >= 0) {
if (lrui < mLruProcessActivityStart) {
mLruProcessActivityStart--;
}
if (lrui < mLruProcessServiceStart) {
mLruProcessServiceStart--;
}
/*
if (addIndex > lrui) {
addIndex--;
}
if (nextIndex > lrui) {
nextIndex--;
}
*/
mLruProcesses.remove(lrui);
}
/*
mLruProcesses.add(addIndex, app);
if (inActivity) {
mLruProcessActivityStart++;
}
if (inService) {
mLruProcessActivityStart++;
}
*/
int nextIndex;
if (hasActivity) {
final int N = mLruProcesses.size();
if (app.activities.size() == 0 && mLruProcessActivityStart < (N - 1)) {
// Process doesn't have activities, but has clients with
// activities... move it up, but one below the top (the top
// should always have a real activity).
if (DEBUG_LRU) Slog.d(TAG_LRU,
"Adding to second-top of LRU activity list: " + app);
mLruProcesses.add(N - 1, app);
// To keep it from spamming the LRU list (by making a bunch of clients),
// we will push down any other entries owned by the app.
final int uid = app.info.uid;
for (int i = N - 2; i > mLruProcessActivityStart; i--) {
ProcessRecord subProc = mLruProcesses.get(i);
if (subProc.info.uid == uid) {
// We want to push this one down the list. If the process after
// it is for the same uid, however, don't do so, because we don't
// want them internally to be re-ordered.
if (mLruProcesses.get(i - 1).info.uid != uid) {
if (DEBUG_LRU) Slog.d(TAG_LRU,
"Pushing uid " + uid + " swapping at " + i + ": "
+ mLruProcesses.get(i) + " : " + mLruProcesses.get(i - 1));
ProcessRecord tmp = mLruProcesses.get(i);
mLruProcesses.set(i, mLruProcesses.get(i - 1));
mLruProcesses.set(i - 1, tmp);
i--;
}
} else {
// A gap, we can stop here.
break;
}
}
} else {
// Process has activities, put it at the very tipsy-top.
if (DEBUG_LRU) Slog.d(TAG_LRU, "Adding to top of LRU activity list: " + app);
mLruProcesses.add(app);
}
nextIndex = mLruProcessServiceStart;
} else if (hasService) {
// Process has services, put it at the top of the service list.
if (DEBUG_LRU) Slog.d(TAG_LRU, "Adding to top of LRU service list: " + app);
mLruProcesses.add(mLruProcessActivityStart, app);
nextIndex = mLruProcessServiceStart;
mLruProcessActivityStart++;
} else {
// Process not otherwise of interest, it goes to the top of the non-service area.
int index = mLruProcessServiceStart;
if (client != null) {
// If there is a client, don't allow the process to be moved up higher
// in the list than that client.
int clientIndex = mLruProcesses.lastIndexOf(client);
if (DEBUG_LRU && clientIndex < 0) Slog.d(TAG_LRU, "Unknown client " + client
+ " when updating " + app);
if (clientIndex <= lrui) {
// Don't allow the client index restriction to push it down farther in the
// list than it already is.
clientIndex = lrui;
}
if (clientIndex >= 0 && index > clientIndex) {
index = clientIndex;
}
}
if (DEBUG_LRU) Slog.d(TAG_LRU, "Adding at " + index + " of LRU list: " + app);
mLruProcesses.add(index, app);
nextIndex = index-1;
mLruProcessActivityStart++;
mLruProcessServiceStart++;
}
// If the app is currently using a content provider or service,
// bump those processes as well.
for (int j=app.connections.size()-1; j>=0; j--) {
ConnectionRecord cr = app.connections.valueAt(j);
if (cr.binding != null && !cr.serviceDead && cr.binding.service != null
&& cr.binding.service.app != null
&& cr.binding.service.app.lruSeq != mLruSeq
&& !cr.binding.service.app.persistent) {
nextIndex = updateLruProcessInternalLocked(cr.binding.service.app, now, nextIndex,
"service connection", cr, app);
}
}
for (int j=app.conProviders.size()-1; j>=0; j--) {
ContentProviderRecord cpr = app.conProviders.get(j).provider;
if (cpr.proc != null && cpr.proc.lruSeq != mLruSeq && !cpr.proc.persistent) {
nextIndex = updateLruProcessInternalLocked(cpr.proc, now, nextIndex,
"provider reference", cpr, app);
}
}
}
final ProcessRecord getProcessRecordLocked(String processName, int uid, boolean keepIfLarge) {
if (uid == SYSTEM_UID) {
// The system gets to run in any process. If there are multiple
// processes with the same uid, just pick the first (this
// should never happen).
SparseArray<ProcessRecord> procs = mProcessNames.getMap().get(processName);
if (procs == null) return null;
final int procCount = procs.size();
for (int i = 0; i < procCount; i++) {
final int procUid = procs.keyAt(i);
if (UserHandle.isApp(procUid) || !UserHandle.isSameUser(procUid, uid)) {
// Don't use an app process or different user process for system component.
continue;
}
return procs.valueAt(i);
}
}
ProcessRecord proc = mProcessNames.get(processName, uid);
if (false && proc != null && !keepIfLarge
&& proc.setProcState >= ActivityManager.PROCESS_STATE_CACHED_EMPTY
&& proc.lastCachedPss >= 4000) {
// Turn this condition on to cause killing to happen regularly, for testing.
if (proc.baseProcessTracker != null) {
proc.baseProcessTracker.reportCachedKill(proc.pkgList, proc.lastCachedPss);
}
proc.kill(Long.toString(proc.lastCachedPss) + "k from cached", true);
} else if (proc != null && !keepIfLarge
&& mLastMemoryLevel > ProcessStats.ADJ_MEM_FACTOR_NORMAL
&& proc.setProcState >= ActivityManager.PROCESS_STATE_CACHED_EMPTY) {
if (DEBUG_PSS) Slog.d(TAG_PSS, "May not keep " + proc + ": pss=" + proc.lastCachedPss);
if (proc.lastCachedPss >= mProcessList.getCachedRestoreThresholdKb()) {
if (proc.baseProcessTracker != null) {
proc.baseProcessTracker.reportCachedKill(proc.pkgList, proc.lastCachedPss);
}
proc.kill(Long.toString(proc.lastCachedPss) + "k from cached", true);
}
}
return proc;
}
void notifyPackageUse(String packageName, int reason) {
synchronized(this) {
getPackageManagerInternalLocked().notifyPackageUse(packageName, reason);
}
}
boolean isNextTransitionForward() {
int transit = mWindowManager.getPendingAppTransition();
return transit == TRANSIT_ACTIVITY_OPEN
|| transit == TRANSIT_TASK_OPEN
|| transit == TRANSIT_TASK_TO_FRONT;
}
int startIsolatedProcess(String entryPoint, String[] entryPointArgs,
String processName, String abiOverride, int uid, Runnable crashHandler) {
synchronized(this) {
ApplicationInfo info = new ApplicationInfo();
// In general the ApplicationInfo.uid isn't neccesarily equal to ProcessRecord.uid.
// For isolated processes, the former contains the parent's uid and the latter the
// actual uid of the isolated process.
// In the special case introduced by this method (which is, starting an isolated
// process directly from the SystemServer without an actual parent app process) the
// closest thing to a parent's uid is SYSTEM_UID.
// The only important thing here is to keep AI.uid != PR.uid, in order to trigger
// the |isolated| logic in the ProcessRecord constructor.
info.uid = SYSTEM_UID;
info.processName = processName;
info.className = entryPoint;
info.packageName = "android";
info.seInfoUser = SELinuxUtil.COMPLETE_STR;
ProcessRecord proc = startProcessLocked(processName, info /* info */,
false /* knownToBeDead */, 0 /* intentFlags */, "" /* hostingType */,
null /* hostingName */, true /* allowWhileBooting */, true /* isolated */,
uid, true /* keepIfLarge */, abiOverride, entryPoint, entryPointArgs,
crashHandler);
return proc != null ? proc.pid : 0;
}
}
final ProcessRecord startProcessLocked(String processName,
ApplicationInfo info, boolean knownToBeDead, int intentFlags,
String hostingType, ComponentName hostingName, boolean allowWhileBooting,
boolean isolated, boolean keepIfLarge) {
return startProcessLocked(processName, info, knownToBeDead, intentFlags, hostingType,
hostingName, allowWhileBooting, isolated, 0 /* isolatedUid */, keepIfLarge,
null /* ABI override */, null /* entryPoint */, null /* entryPointArgs */,
null /* crashHandler */);
}
final ProcessRecord startProcessLocked(String processName, ApplicationInfo info,
boolean knownToBeDead, int intentFlags, String hostingType, ComponentName hostingName,
boolean allowWhileBooting, boolean isolated, int isolatedUid, boolean keepIfLarge,
String abiOverride, String entryPoint, String[] entryPointArgs, Runnable crashHandler) {
long startTime = SystemClock.elapsedRealtime();
ProcessRecord app;
if (!isolated) {
app = getProcessRecordLocked(processName, info.uid, keepIfLarge);
checkTime(startTime, "startProcess: after getProcessRecord");
if ((intentFlags & Intent.FLAG_FROM_BACKGROUND) != 0) {
// If we are in the background, then check to see if this process
// is bad. If so, we will just silently fail.
if (mAppErrors.isBadProcessLocked(info)) {
if (DEBUG_PROCESSES) Slog.v(TAG, "Bad process: " + info.uid
+ "/" + info.processName);
return null;
}
} else {
// When the user is explicitly starting a process, then clear its
// crash count so that we won't make it bad until they see at
// least one crash dialog again, and make the process good again
// if it had been bad.
if (DEBUG_PROCESSES) Slog.v(TAG, "Clearing bad process: " + info.uid
+ "/" + info.processName);
mAppErrors.resetProcessCrashTimeLocked(info);
if (mAppErrors.isBadProcessLocked(info)) {
EventLog.writeEvent(EventLogTags.AM_PROC_GOOD,
UserHandle.getUserId(info.uid), info.uid,
info.processName);
mAppErrors.clearBadProcessLocked(info);
if (app != null) {
app.bad = false;
}
}
}
} else {
// If this is an isolated process, it can't re-use an existing process.
app = null;
}
// We don't have to do anything more if:
// (1) There is an existing application record; and
// (2) The caller doesn't think it is dead, OR there is no thread
// object attached to it so we know it couldn't have crashed; and
// (3) There is a pid assigned to it, so it is either starting or
// already running.
if (DEBUG_PROCESSES) Slog.v(TAG_PROCESSES, "startProcess: name=" + processName
+ " app=" + app + " knownToBeDead=" + knownToBeDead
+ " thread=" + (app != null ? app.thread : null)
+ " pid=" + (app != null ? app.pid : -1));
if (app != null && app.pid > 0) {
if ((!knownToBeDead && !app.killed) || app.thread == null) {
// We already have the app running, or are waiting for it to
// come up (we have a pid but not yet its thread), so keep it.
if (DEBUG_PROCESSES) Slog.v(TAG_PROCESSES, "App already running: " + app);
// If this is a new package in the process, add the package to the list
app.addPackage(info.packageName, info.versionCode, mProcessStats);
checkTime(startTime, "startProcess: done, added package to proc");
return app;
}
// An application record is attached to a previous process,
// clean it up now.
if (DEBUG_PROCESSES || DEBUG_CLEANUP) Slog.v(TAG_PROCESSES, "App died: " + app);
checkTime(startTime, "startProcess: bad proc running, killing");
killProcessGroup(app.uid, app.pid);
handleAppDiedLocked(app, true, true);
checkTime(startTime, "startProcess: done killing old proc");
}
String hostingNameStr = hostingName != null
? hostingName.flattenToShortString() : null;
if (app == null) {
checkTime(startTime, "startProcess: creating new process record");
app = newProcessRecordLocked(info, processName, isolated, isolatedUid);
if (app == null) {
Slog.w(TAG, "Failed making new process record for "
+ processName + "/" + info.uid + " isolated=" + isolated);
return null;
}
app.crashHandler = crashHandler;
app.isolatedEntryPoint = entryPoint;
app.isolatedEntryPointArgs = entryPointArgs;
checkTime(startTime, "startProcess: done creating new process record");
} else {
// If this is a new package in the process, add the package to the list
app.addPackage(info.packageName, info.versionCode, mProcessStats);
checkTime(startTime, "startProcess: added package to existing proc");
}
// If the system is not ready yet, then hold off on starting this
// process until it is.
if (!mProcessesReady
&& !isAllowedWhileBooting(info)
&& !allowWhileBooting) {
if (!mProcessesOnHold.contains(app)) {
mProcessesOnHold.add(app);
}
if (DEBUG_PROCESSES) Slog.v(TAG_PROCESSES,
"System not ready, putting on hold: " + app);
checkTime(startTime, "startProcess: returning with proc on hold");
return app;
}
checkTime(startTime, "startProcess: stepping in to startProcess");
startProcessLocked(app, hostingType, hostingNameStr, abiOverride);
checkTime(startTime, "startProcess: done starting proc!");
return (app.pid != 0) ? app : null;
}
boolean isAllowedWhileBooting(ApplicationInfo ai) {
return (ai.flags&ApplicationInfo.FLAG_PERSISTENT) != 0;
}
private final void startProcessLocked(ProcessRecord app,
String hostingType, String hostingNameStr) {
startProcessLocked(app, hostingType, hostingNameStr, null /* abiOverride */);
}
private final void startProcessLocked(ProcessRecord app, String hostingType,
String hostingNameStr, String abiOverride) {
long startTime = SystemClock.elapsedRealtime();
if (app.pid > 0 && app.pid != MY_PID) {
checkTime(startTime, "startProcess: removing from pids map");
synchronized (mPidsSelfLocked) {
mPidsSelfLocked.remove(app.pid);
mHandler.removeMessages(PROC_START_TIMEOUT_MSG, app);
}
checkTime(startTime, "startProcess: done removing from pids map");
app.setPid(0);
}
if (DEBUG_PROCESSES && mProcessesOnHold.contains(app)) Slog.v(TAG_PROCESSES,
"startProcessLocked removing on hold: " + app);
mProcessesOnHold.remove(app);
checkTime(startTime, "startProcess: starting to update cpu stats");
updateCpuStats();
checkTime(startTime, "startProcess: done updating cpu stats");
try {
try {
final int userId = UserHandle.getUserId(app.uid);
AppGlobals.getPackageManager().checkPackageStartable(app.info.packageName, userId);
} catch (RemoteException e) {
throw e.rethrowAsRuntimeException();
}
int uid = app.uid;
int[] gids = null;
int mountExternal = Zygote.MOUNT_EXTERNAL_NONE;
if (!app.isolated) {
int[] permGids = null;
try {
checkTime(startTime, "startProcess: getting gids from package manager");
final IPackageManager pm = AppGlobals.getPackageManager();
permGids = pm.getPackageGids(app.info.packageName,
MATCH_DEBUG_TRIAGED_MISSING, app.userId);
StorageManagerInternal storageManagerInternal = LocalServices.getService(
StorageManagerInternal.class);
mountExternal = storageManagerInternal.getExternalStorageMountMode(uid,
app.info.packageName);
} catch (RemoteException e) {
throw e.rethrowAsRuntimeException();
}
/*
* Add shared application and profile GIDs so applications can share some
* resources like shared libraries and access user-wide resources
*/
if (ArrayUtils.isEmpty(permGids)) {
gids = new int[3];
} else {
gids = new int[permGids.length + 3];
System.arraycopy(permGids, 0, gids, 3, permGids.length);
}
gids[0] = UserHandle.getSharedAppGid(UserHandle.getAppId(uid));
gids[1] = UserHandle.getCacheAppGid(UserHandle.getAppId(uid));
gids[2] = UserHandle.getUserGid(UserHandle.getUserId(uid));
}
checkTime(startTime, "startProcess: building args");
if (mFactoryTest != FactoryTest.FACTORY_TEST_OFF) {
if (mFactoryTest == FactoryTest.FACTORY_TEST_LOW_LEVEL
&& mTopComponent != null
&& app.processName.equals(mTopComponent.getPackageName())) {
uid = 0;
}
if (mFactoryTest == FactoryTest.FACTORY_TEST_HIGH_LEVEL
&& (app.info.flags&ApplicationInfo.FLAG_FACTORY_TEST) != 0) {
uid = 0;
}
}
int runtimeFlags = 0;
if ((app.info.flags & ApplicationInfo.FLAG_DEBUGGABLE) != 0) {
runtimeFlags |= Zygote.DEBUG_ENABLE_JDWP;
runtimeFlags |= Zygote.DEBUG_JAVA_DEBUGGABLE;
// Also turn on CheckJNI for debuggable apps. It's quite
// awkward to turn on otherwise.
runtimeFlags |= Zygote.DEBUG_ENABLE_CHECKJNI;
}
// Run the app in safe mode if its manifest requests so or the
// system is booted in safe mode.
if ((app.info.flags & ApplicationInfo.FLAG_VM_SAFE_MODE) != 0 ||
mSafeMode == true) {
runtimeFlags |= Zygote.DEBUG_ENABLE_SAFEMODE;
}
if ("1".equals(SystemProperties.get("debug.checkjni"))) {
runtimeFlags |= Zygote.DEBUG_ENABLE_CHECKJNI;
}
String genDebugInfoProperty = SystemProperties.get("debug.generate-debug-info");
if ("true".equals(genDebugInfoProperty)) {
runtimeFlags |= Zygote.DEBUG_GENERATE_DEBUG_INFO;
}
if ("1".equals(SystemProperties.get("debug.jni.logging"))) {
runtimeFlags |= Zygote.DEBUG_ENABLE_JNI_LOGGING;
}
if ("1".equals(SystemProperties.get("debug.assert"))) {
runtimeFlags |= Zygote.DEBUG_ENABLE_ASSERT;
}
if (mNativeDebuggingApp != null && mNativeDebuggingApp.equals(app.processName)) {
// Enable all debug flags required by the native debugger.
runtimeFlags |= Zygote.DEBUG_ALWAYS_JIT; // Don't interpret anything
runtimeFlags |= Zygote.DEBUG_GENERATE_DEBUG_INFO; // Generate debug info
runtimeFlags |= Zygote.DEBUG_NATIVE_DEBUGGABLE; // Disbale optimizations
mNativeDebuggingApp = null;
}
if (app.info.isPrivilegedApp() &&
!SystemProperties.getBoolean("pm.dexopt.priv-apps", true)) {
runtimeFlags |= Zygote.DISABLE_VERIFIER;
runtimeFlags |= Zygote.ONLY_USE_SYSTEM_OAT_FILES;
}
String invokeWith = null;
if ((app.info.flags & ApplicationInfo.FLAG_DEBUGGABLE) != 0) {
// Debuggable apps may include a wrapper script with their library directory.
String wrapperFileName = app.info.nativeLibraryDir + "/wrap.sh";
StrictMode.ThreadPolicy oldPolicy = StrictMode.allowThreadDiskReads();
try {
if (new File(wrapperFileName).exists()) {
invokeWith = "/system/bin/logwrapper " + wrapperFileName;
}
} finally {
StrictMode.setThreadPolicy(oldPolicy);
}
}
String requiredAbi = (abiOverride != null) ? abiOverride : app.info.primaryCpuAbi;
if (requiredAbi == null) {
requiredAbi = Build.SUPPORTED_ABIS[0];
}
String instructionSet = null;
if (app.info.primaryCpuAbi != null) {
instructionSet = VMRuntime.getInstructionSet(app.info.primaryCpuAbi);
}
app.gids = gids;
app.requiredAbi = requiredAbi;
app.instructionSet = instructionSet;
// the per-user SELinux context must be set
if (TextUtils.isEmpty(app.info.seInfoUser)) {
Slog.wtf(TAG, "SELinux tag not defined",
new IllegalStateException("SELinux tag not defined for "
+ app.info.packageName + " (uid " + app.uid + ")"));
}
final String seInfo = app.info.seInfo
+ (TextUtils.isEmpty(app.info.seInfoUser) ? "" : app.info.seInfoUser);
// Start the process. It will either succeed and return a result containing
// the PID of the new process, or else throw a RuntimeException.
final String entryPoint = "android.app.ActivityThread";
Trace.traceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER, "Start proc: " +
app.processName);
checkTime(startTime, "startProcess: asking zygote to start proc");
ProcessStartResult startResult;
if (hostingType.equals("webview_service")) {
startResult = startWebView(entryPoint,
app.processName, uid, uid, gids, runtimeFlags, mountExternal,
app.info.targetSdkVersion, seInfo, requiredAbi, instructionSet,
app.info.dataDir, null, null);
} else {
startResult = Process.start(entryPoint,
app.processName, uid, uid, gids, runtimeFlags, mountExternal,
app.info.targetSdkVersion, seInfo, requiredAbi, instructionSet,
app.info.dataDir, invokeWith, null);
}
checkTime(startTime, "startProcess: returned from zygote!");
Trace.traceEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER);
mBatteryStatsService.noteProcessStart(app.processName, app.info.uid);
checkTime(startTime, "startProcess: done updating battery stats");
EventLog.writeEvent(EventLogTags.AM_PROC_START,
UserHandle.getUserId(uid), startResult.pid, uid,
app.processName, hostingType,
hostingNameStr != null ? hostingNameStr : "");
try {
AppGlobals.getPackageManager().logAppProcessStartIfNeeded(app.processName, app.uid,
seInfo, app.info.sourceDir, startResult.pid);
} catch (RemoteException ex) {
// Ignore
}
if (app.persistent) {
Watchdog.getInstance().processStarted(app.processName, startResult.pid);
}
checkTime(startTime, "startProcess: building log message");
StringBuilder buf = mStringBuilder;
buf.setLength(0);
buf.append("Start proc ");
buf.append(startResult.pid);
buf.append(':');
buf.append(app.processName);
buf.append('/');
UserHandle.formatUid(buf, uid);
if (app.isolatedEntryPoint != null) {
buf.append(" [");
buf.append(app.isolatedEntryPoint);
buf.append("]");
}
buf.append(" for ");
buf.append(hostingType);
if (hostingNameStr != null) {
buf.append(" ");
buf.append(hostingNameStr);
}
Slog.i(TAG, buf.toString());
app.setPid(startResult.pid);
app.usingWrapper = startResult.usingWrapper;
app.removed = false;
app.killed = false;
app.killedByAm = false;
checkTime(startTime, "startProcess: starting to update pids map");
ProcessRecord oldApp;
synchronized (mPidsSelfLocked) {
oldApp = mPidsSelfLocked.get(startResult.pid);
}
// If there is already an app occupying that pid that hasn't been cleaned up
if (oldApp != null && !app.isolated) {
// Clean up anything relating to this pid first
Slog.w(TAG, "Reusing pid " + startResult.pid
+ " while app is still mapped to it");
cleanUpApplicationRecordLocked(oldApp, false, false, -1,
true /*replacingPid*/);
}
synchronized (mPidsSelfLocked) {
this.mPidsSelfLocked.put(startResult.pid, app);
Message msg = mHandler.obtainMessage(PROC_START_TIMEOUT_MSG);
msg.obj = app;
mHandler.sendMessageDelayed(msg, startResult.usingWrapper
? PROC_START_TIMEOUT_WITH_WRAPPER : PROC_START_TIMEOUT);
}
checkTime(startTime, "startProcess: done updating pids map");
} catch (RuntimeException e) {
Slog.e(TAG, "Failure starting process " + app.processName, e);
// Something went very wrong while trying to start this process; one
// common case is when the package is frozen due to an active
// upgrade. To recover, clean up any active bookkeeping related to
// starting this process. (We already invoked this method once when
// the package was initially frozen through KILL_APPLICATION_MSG, so
// it doesn't hurt to use it again.)
forceStopPackageLocked(app.info.packageName, UserHandle.getAppId(app.uid), false,
false, true, false, false, UserHandle.getUserId(app.userId), "start failure");
}
}
void updateUsageStats(ActivityRecord component, boolean resumed) {
if (DEBUG_SWITCH) Slog.d(TAG_SWITCH,
"updateUsageStats: comp=" + component + "res=" + resumed);
final BatteryStatsImpl stats = mBatteryStatsService.getActiveStatistics();
if (resumed) {
if (mUsageStatsService != null) {
mUsageStatsService.reportEvent(component.realActivity, component.userId,
UsageEvents.Event.MOVE_TO_FOREGROUND);
}
synchronized (stats) {
stats.noteActivityResumedLocked(component.app.uid);
}
} else {
if (mUsageStatsService != null) {
mUsageStatsService.reportEvent(component.realActivity, component.userId,
UsageEvents.Event.MOVE_TO_BACKGROUND);
}
synchronized (stats) {
stats.noteActivityPausedLocked(component.app.uid);
}
}
}
Intent getHomeIntent() {
Intent intent = new Intent(mTopAction, mTopData != null ? Uri.parse(mTopData) : null);
intent.setComponent(mTopComponent);
intent.addFlags(Intent.FLAG_DEBUG_TRIAGED_MISSING);
if (mFactoryTest != FactoryTest.FACTORY_TEST_LOW_LEVEL) {
intent.addCategory(Intent.CATEGORY_HOME);
}
return intent;
}
boolean startHomeActivityLocked(int userId, String reason) {
if (mFactoryTest == FactoryTest.FACTORY_TEST_LOW_LEVEL
&& mTopAction == null) {
// We are running in factory test mode, but unable to find
// the factory test app, so just sit around displaying the
// error message and don't try to start anything.
return false;
}
Intent intent = getHomeIntent();
ActivityInfo aInfo = resolveActivityInfo(intent, STOCK_PM_FLAGS, userId);
if (aInfo != null) {
intent.setComponent(new ComponentName(aInfo.applicationInfo.packageName, aInfo.name));
// Don't do this if the home app is currently being
// instrumented.
aInfo = new ActivityInfo(aInfo);
aInfo.applicationInfo = getAppInfoForUser(aInfo.applicationInfo, userId);
ProcessRecord app = getProcessRecordLocked(aInfo.processName,
aInfo.applicationInfo.uid, true);
if (app == null || app.instr == null) {
intent.setFlags(intent.getFlags() | Intent.FLAG_ACTIVITY_NEW_TASK);
final int resolvedUserId = UserHandle.getUserId(aInfo.applicationInfo.uid);
// For ANR debugging to verify if the user activity is the one that actually
// launched.
final String myReason = reason + ":" + userId + ":" + resolvedUserId;
mActivityStarter.startHomeActivityLocked(intent, aInfo, myReason);
}
} else {
Slog.wtf(TAG, "No home screen found for " + intent, new Throwable());
}
return true;
}
private ActivityInfo resolveActivityInfo(Intent intent, int flags, int userId) {
ActivityInfo ai = null;
ComponentName comp = intent.getComponent();
try {
if (comp != null) {
// Factory test.
ai = AppGlobals.getPackageManager().getActivityInfo(comp, flags, userId);
} else {
ResolveInfo info = AppGlobals.getPackageManager().resolveIntent(
intent,
intent.resolveTypeIfNeeded(mContext.getContentResolver()),
flags, userId);
if (info != null) {
ai = info.activityInfo;
}
}
} catch (RemoteException e) {
// ignore
}
return ai;
}
/**
* Starts the "new version setup screen" if appropriate.
*/
void startSetupActivityLocked() {
// Only do this once per boot.
if (mCheckedForSetup) {
return;
}
// We will show this screen if the current one is a different
// version than the last one shown, and we are not running in
// low-level factory test mode.
final ContentResolver resolver = mContext.getContentResolver();
if (mFactoryTest != FactoryTest.FACTORY_TEST_LOW_LEVEL &&
Settings.Global.getInt(resolver,
Settings.Global.DEVICE_PROVISIONED, 0) != 0) {
mCheckedForSetup = true;
// See if we should be showing the platform update setup UI.
final Intent intent = new Intent(Intent.ACTION_UPGRADE_SETUP);
final List<ResolveInfo> ris = mContext.getPackageManager().queryIntentActivities(intent,
PackageManager.MATCH_SYSTEM_ONLY | PackageManager.GET_META_DATA);
if (!ris.isEmpty()) {
final ResolveInfo ri = ris.get(0);
String vers = ri.activityInfo.metaData != null
? ri.activityInfo.metaData.getString(Intent.METADATA_SETUP_VERSION)
: null;
if (vers == null && ri.activityInfo.applicationInfo.metaData != null) {
vers = ri.activityInfo.applicationInfo.metaData.getString(
Intent.METADATA_SETUP_VERSION);
}
String lastVers = Settings.Secure.getString(
resolver, Settings.Secure.LAST_SETUP_SHOWN);
if (vers != null && !vers.equals(lastVers)) {
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setComponent(new ComponentName(
ri.activityInfo.packageName, ri.activityInfo.name));
mActivityStarter.startActivityLocked(null, intent, null /*ephemeralIntent*/,
null, ri.activityInfo, null /*rInfo*/, null, null, null, null, 0, 0, 0,
null, 0, 0, 0, null, false, false, null, null, "startSetupActivity");
}
}
}
}
CompatibilityInfo compatibilityInfoForPackageLocked(ApplicationInfo ai) {
return mCompatModePackages.compatibilityInfoForPackageLocked(ai);
}
void enforceNotIsolatedCaller(String caller) {
if (UserHandle.isIsolated(Binder.getCallingUid())) {
throw new SecurityException("Isolated process not allowed to call " + caller);
}
}
@Override
public int getFrontActivityScreenCompatMode() {
enforceNotIsolatedCaller("getFrontActivityScreenCompatMode");
synchronized (this) {
return mCompatModePackages.getFrontActivityScreenCompatModeLocked();
}
}
@Override
public void setFrontActivityScreenCompatMode(int mode) {
enforceCallingPermission(android.Manifest.permission.SET_SCREEN_COMPATIBILITY,
"setFrontActivityScreenCompatMode");
synchronized (this) {
mCompatModePackages.setFrontActivityScreenCompatModeLocked(mode);
}
}
@Override
public int getPackageScreenCompatMode(String packageName) {
enforceNotIsolatedCaller("getPackageScreenCompatMode");
synchronized (this) {
return mCompatModePackages.getPackageScreenCompatModeLocked(packageName);
}
}
@Override
public void setPackageScreenCompatMode(String packageName, int mode) {
enforceCallingPermission(android.Manifest.permission.SET_SCREEN_COMPATIBILITY,
"setPackageScreenCompatMode");
synchronized (this) {
mCompatModePackages.setPackageScreenCompatModeLocked(packageName, mode);
}
}
@Override
public boolean getPackageAskScreenCompat(String packageName) {
enforceNotIsolatedCaller("getPackageAskScreenCompat");
synchronized (this) {
return mCompatModePackages.getPackageAskCompatModeLocked(packageName);
}
}
@Override
public void setPackageAskScreenCompat(String packageName, boolean ask) {
enforceCallingPermission(android.Manifest.permission.SET_SCREEN_COMPATIBILITY,
"setPackageAskScreenCompat");
synchronized (this) {
mCompatModePackages.setPackageAskCompatModeLocked(packageName, ask);
}
}
private boolean hasUsageStatsPermission(String callingPackage) {
final int mode = mAppOpsService.checkOperation(AppOpsManager.OP_GET_USAGE_STATS,
Binder.getCallingUid(), callingPackage);
if (mode == AppOpsManager.MODE_DEFAULT) {
return checkCallingPermission(Manifest.permission.PACKAGE_USAGE_STATS)
== PackageManager.PERMISSION_GRANTED;
}
return mode == AppOpsManager.MODE_ALLOWED;
}
@Override
public int getPackageProcessState(String packageName, String callingPackage) {
if (!hasUsageStatsPermission(callingPackage)) {
enforceCallingPermission(android.Manifest.permission.PACKAGE_USAGE_STATS,
"getPackageProcessState");
}
int procState = ActivityManager.PROCESS_STATE_NONEXISTENT;
synchronized (this) {
for (int i=mLruProcesses.size()-1; i>=0; i--) {
final ProcessRecord proc = mLruProcesses.get(i);
if (procState > proc.setProcState) {
if (proc.pkgList.containsKey(packageName) ||
(proc.pkgDeps != null && proc.pkgDeps.contains(packageName))) {
procState = proc.setProcState;
}
}
}
}
return procState;
}
@Override
public boolean setProcessMemoryTrimLevel(String process, int userId, int level)
throws RemoteException {
synchronized (this) {
final ProcessRecord app = findProcessLocked(process, userId, "setProcessMemoryTrimLevel");
if (app == null) {
throw new IllegalArgumentException("Unknown process: " + process);
}
if (app.thread == null) {
throw new IllegalArgumentException("Process has no app thread");
}
if (app.trimMemoryLevel >= level) {
throw new IllegalArgumentException(
"Unable to set a higher trim level than current level");
}
if (!(level < ComponentCallbacks2.TRIM_MEMORY_UI_HIDDEN ||
app.curProcState > ActivityManager.PROCESS_STATE_IMPORTANT_FOREGROUND)) {
throw new IllegalArgumentException("Unable to set a background trim level "
+ "on a foreground process");
}
app.thread.scheduleTrimMemory(level);
app.trimMemoryLevel = level;
return true;
}
}
private void dispatchProcessesChanged() {
int N;
synchronized (this) {
N = mPendingProcessChanges.size();
if (mActiveProcessChanges.length < N) {
mActiveProcessChanges = new ProcessChangeItem[N];
}
mPendingProcessChanges.toArray(mActiveProcessChanges);
mPendingProcessChanges.clear();
if (DEBUG_PROCESS_OBSERVERS) Slog.i(TAG_PROCESS_OBSERVERS,
"*** Delivering " + N + " process changes");
}
int i = mProcessObservers.beginBroadcast();
while (i > 0) {
i--;
final IProcessObserver observer = mProcessObservers.getBroadcastItem(i);
if (observer != null) {
try {
for (int j=0; j<N; j++) {
ProcessChangeItem item = mActiveProcessChanges[j];
if ((item.changes&ProcessChangeItem.CHANGE_ACTIVITIES) != 0) {
if (DEBUG_PROCESS_OBSERVERS) Slog.i(TAG_PROCESS_OBSERVERS,
"ACTIVITIES CHANGED pid=" + item.pid + " uid="
+ item.uid + ": " + item.foregroundActivities);
observer.onForegroundActivitiesChanged(item.pid, item.uid,
item.foregroundActivities);
}
}
} catch (RemoteException e) {
}
}
}
mProcessObservers.finishBroadcast();
synchronized (this) {
for (int j=0; j<N; j++) {
mAvailProcessChanges.add(mActiveProcessChanges[j]);
}
}
}
private void dispatchProcessDied(int pid, int uid) {
int i = mProcessObservers.beginBroadcast();
while (i > 0) {
i--;
final IProcessObserver observer = mProcessObservers.getBroadcastItem(i);
if (observer != null) {
try {
observer.onProcessDied(pid, uid);
} catch (RemoteException e) {
}
}
}
mProcessObservers.finishBroadcast();
}
@VisibleForTesting
void dispatchUidsChanged() {
int N;
synchronized (this) {
N = mPendingUidChanges.size();
if (mActiveUidChanges.length < N) {
mActiveUidChanges = new UidRecord.ChangeItem[N];
}
for (int i=0; i<N; i++) {
final UidRecord.ChangeItem change = mPendingUidChanges.get(i);
mActiveUidChanges[i] = change;
if (change.uidRecord != null) {
change.uidRecord.pendingChange = null;
change.uidRecord = null;
}
}
mPendingUidChanges.clear();
if (DEBUG_UID_OBSERVERS) Slog.i(TAG_UID_OBSERVERS,
"*** Delivering " + N + " uid changes");
}
int i = mUidObservers.beginBroadcast();
while (i > 0) {
i--;
dispatchUidsChangedForObserver(mUidObservers.getBroadcastItem(i),
(UidObserverRegistration) mUidObservers.getBroadcastCookie(i), N);
}
mUidObservers.finishBroadcast();
if (VALIDATE_UID_STATES && mUidObservers.getRegisteredCallbackCount() > 0) {
for (int j = 0; j < N; ++j) {
final UidRecord.ChangeItem item = mActiveUidChanges[j];
if ((item.change & UidRecord.CHANGE_GONE) != 0) {
mValidateUids.remove(item.uid);
} else {
UidRecord validateUid = mValidateUids.get(item.uid);
if (validateUid == null) {
validateUid = new UidRecord(item.uid);
mValidateUids.put(item.uid, validateUid);
}
if ((item.change & UidRecord.CHANGE_IDLE) != 0) {
validateUid.idle = true;
} else if ((item.change & UidRecord.CHANGE_ACTIVE) != 0) {
validateUid.idle = false;
}
validateUid.curProcState = validateUid.setProcState = item.processState;
validateUid.lastDispatchedProcStateSeq = item.procStateSeq;
}
}
}
synchronized (this) {
for (int j = 0; j < N; j++) {
mAvailUidChanges.add(mActiveUidChanges[j]);
}
}
}
private void dispatchUidsChangedForObserver(IUidObserver observer,
UidObserverRegistration reg, int changesSize) {
if (observer == null) {
return;
}
try {
for (int j = 0; j < changesSize; j++) {
UidRecord.ChangeItem item = mActiveUidChanges[j];
final int change = item.change;
if (change == UidRecord.CHANGE_PROCSTATE &&
(reg.which & ActivityManager.UID_OBSERVER_PROCSTATE) == 0) {
// No-op common case: no significant change, the observer is not
// interested in all proc state changes.
continue;
}
if ((change & UidRecord.CHANGE_IDLE) != 0) {
if ((reg.which & ActivityManager.UID_OBSERVER_IDLE) != 0) {
if (DEBUG_UID_OBSERVERS) Slog.i(TAG_UID_OBSERVERS,
"UID idle uid=" + item.uid);
observer.onUidIdle(item.uid, item.ephemeral);
}
} else if ((change & UidRecord.CHANGE_ACTIVE) != 0) {
if ((reg.which & ActivityManager.UID_OBSERVER_ACTIVE) != 0) {
if (DEBUG_UID_OBSERVERS) Slog.i(TAG_UID_OBSERVERS,
"UID active uid=" + item.uid);
observer.onUidActive(item.uid);
}
}
if ((reg.which & ActivityManager.UID_OBSERVER_CACHED) != 0) {
if ((change & UidRecord.CHANGE_CACHED) != 0) {
if (DEBUG_UID_OBSERVERS) Slog.i(TAG_UID_OBSERVERS,
"UID cached uid=" + item.uid);
observer.onUidCachedChanged(item.uid, true);
} else if ((change & UidRecord.CHANGE_UNCACHED) != 0) {
if (DEBUG_UID_OBSERVERS) Slog.i(TAG_UID_OBSERVERS,
"UID active uid=" + item.uid);
observer.onUidCachedChanged(item.uid, false);
}
}
if ((change & UidRecord.CHANGE_GONE) != 0) {
if ((reg.which & ActivityManager.UID_OBSERVER_GONE) != 0) {
if (DEBUG_UID_OBSERVERS) Slog.i(TAG_UID_OBSERVERS,
"UID gone uid=" + item.uid);
observer.onUidGone(item.uid, item.ephemeral);
}
if (reg.lastProcStates != null) {
reg.lastProcStates.delete(item.uid);
}
} else {
if ((reg.which & ActivityManager.UID_OBSERVER_PROCSTATE) != 0) {
if (DEBUG_UID_OBSERVERS) Slog.i(TAG_UID_OBSERVERS,
"UID CHANGED uid=" + item.uid
+ ": " + item.processState);
boolean doReport = true;
if (reg.cutpoint >= ActivityManager.MIN_PROCESS_STATE) {
final int lastState = reg.lastProcStates.get(item.uid,
ActivityManager.PROCESS_STATE_UNKNOWN);
if (lastState != ActivityManager.PROCESS_STATE_UNKNOWN) {
final boolean lastAboveCut = lastState <= reg.cutpoint;
final boolean newAboveCut = item.processState <= reg.cutpoint;
doReport = lastAboveCut != newAboveCut;
} else {
doReport = item.processState
!= ActivityManager.PROCESS_STATE_NONEXISTENT;
}
}
if (doReport) {
if (reg.lastProcStates != null) {
reg.lastProcStates.put(item.uid, item.processState);
}
observer.onUidStateChanged(item.uid, item.processState,
item.procStateSeq);
}
}
}
}
} catch (RemoteException e) {
}
}
void dispatchOomAdjObserver(String msg) {
OomAdjObserver observer;
synchronized (this) {
observer = mCurOomAdjObserver;
}
if (observer != null) {
observer.onOomAdjMessage(msg);
}
}
void setOomAdjObserver(int uid, OomAdjObserver observer) {
synchronized (this) {
mCurOomAdjUid = uid;
mCurOomAdjObserver = observer;
}
}
void clearOomAdjObserver() {
synchronized (this) {
mCurOomAdjUid = -1;
mCurOomAdjObserver = null;
}
}
void reportOomAdjMessageLocked(String tag, String msg) {
Slog.d(tag, msg);
if (mCurOomAdjObserver != null) {
mUiHandler.obtainMessage(DISPATCH_OOM_ADJ_OBSERVER_MSG, msg).sendToTarget();
}
}
@Override
public final int startActivity(IApplicationThread caller, String callingPackage,
Intent intent, String resolvedType, IBinder resultTo, String resultWho, int requestCode,
int startFlags, ProfilerInfo profilerInfo, Bundle bOptions) {
return startActivityAsUser(caller, callingPackage, intent, resolvedType, resultTo,
resultWho, requestCode, startFlags, profilerInfo, bOptions,
UserHandle.getCallingUserId());
}
@Override
public final int startActivityAsUser(IApplicationThread caller, String callingPackage,
Intent intent, String resolvedType, IBinder resultTo, String resultWho, int requestCode,
int startFlags, ProfilerInfo profilerInfo, Bundle bOptions, int userId) {
enforceNotIsolatedCaller("startActivity");
userId = mUserController.handleIncomingUser(Binder.getCallingPid(), Binder.getCallingUid(),
userId, false, ALLOW_FULL_ONLY, "startActivity", null);
// TODO: Switch to user app stacks here.
return mActivityStarter.startActivityMayWait(caller, -1, callingPackage, intent,
resolvedType, null, null, resultTo, resultWho, requestCode, startFlags,
profilerInfo, null, null, bOptions, false, userId, null, "startActivityAsUser");
}
@Override
public final int startActivityAsCaller(IApplicationThread caller, String callingPackage,
Intent intent, String resolvedType, IBinder resultTo, String resultWho, int requestCode,
int startFlags, ProfilerInfo profilerInfo, Bundle bOptions, boolean ignoreTargetSecurity,
int userId) {
// This is very dangerous -- it allows you to perform a start activity (including
// permission grants) as any app that may launch one of your own activities. So
// we will only allow this to be done from activities that are part of the core framework,
// and then only when they are running as the system.
final ActivityRecord sourceRecord;
final int targetUid;
final String targetPackage;
synchronized (this) {
if (resultTo == null) {
throw new SecurityException("Must be called from an activity");
}
sourceRecord = mStackSupervisor.isInAnyStackLocked(resultTo);
if (sourceRecord == null) {
throw new SecurityException("Called with bad activity token: " + resultTo);
}
if (!sourceRecord.info.packageName.equals("android")) {
throw new SecurityException(
"Must be called from an activity that is declared in the android package");
}
if (sourceRecord.app == null) {
throw new SecurityException("Called without a process attached to activity");
}
if (UserHandle.getAppId(sourceRecord.app.uid) != SYSTEM_UID) {
// This is still okay, as long as this activity is running under the
// uid of the original calling activity.
if (sourceRecord.app.uid != sourceRecord.launchedFromUid) {
throw new SecurityException(
"Calling activity in uid " + sourceRecord.app.uid
+ " must be system uid or original calling uid "
+ sourceRecord.launchedFromUid);
}
}
if (ignoreTargetSecurity) {
if (intent.getComponent() == null) {
throw new SecurityException(
"Component must be specified with ignoreTargetSecurity");
}
if (intent.getSelector() != null) {
throw new SecurityException(
"Selector not allowed with ignoreTargetSecurity");
}
}
targetUid = sourceRecord.launchedFromUid;
targetPackage = sourceRecord.launchedFromPackage;
}
if (userId == UserHandle.USER_NULL) {
userId = UserHandle.getUserId(sourceRecord.app.uid);
}
// TODO: Switch to user app stacks here.
try {
int ret = mActivityStarter.startActivityMayWait(null, targetUid, targetPackage, intent,
resolvedType, null, null, resultTo, resultWho, requestCode, startFlags, null,
null, null, bOptions, ignoreTargetSecurity, userId, null,
"startActivityAsCaller");
return ret;
} catch (SecurityException e) {
// XXX need to figure out how to propagate to original app.
// A SecurityException here is generally actually a fault of the original
// calling activity (such as a fairly granting permissions), so propagate it
// back to them.
/*
StringBuilder msg = new StringBuilder();
msg.append("While launching");
msg.append(intent.toString());
msg.append(": ");
msg.append(e.getMessage());
*/
throw e;
}
}
@Override
public final WaitResult startActivityAndWait(IApplicationThread caller, String callingPackage,
Intent intent, String resolvedType, IBinder resultTo, String resultWho, int requestCode,
int startFlags, ProfilerInfo profilerInfo, Bundle bOptions, int userId) {
enforceNotIsolatedCaller("startActivityAndWait");
userId = mUserController.handleIncomingUser(Binder.getCallingPid(), Binder.getCallingUid(),
userId, false, ALLOW_FULL_ONLY, "startActivityAndWait", null);
WaitResult res = new WaitResult();
// TODO: Switch to user app stacks here.
mActivityStarter.startActivityMayWait(caller, -1, callingPackage, intent, resolvedType,
null, null, resultTo, resultWho, requestCode, startFlags, profilerInfo, res, null,
bOptions, false, userId, null, "startActivityAndWait");
return res;
}
@Override
public final int startActivityWithConfig(IApplicationThread caller, String callingPackage,
Intent intent, String resolvedType, IBinder resultTo, String resultWho, int requestCode,
int startFlags, Configuration config, Bundle bOptions, int userId) {
enforceNotIsolatedCaller("startActivityWithConfig");
userId = mUserController.handleIncomingUser(Binder.getCallingPid(), Binder.getCallingUid(),
userId, false, ALLOW_FULL_ONLY, "startActivityWithConfig", null);
// TODO: Switch to user app stacks here.
int ret = mActivityStarter.startActivityMayWait(caller, -1, callingPackage, intent,
resolvedType, null, null, resultTo, resultWho, requestCode, startFlags,
null, null, config, bOptions, false, userId, null, "startActivityWithConfig");
return ret;
}
@Override
public int startActivityIntentSender(IApplicationThread caller, IIntentSender target,
IBinder whitelistToken, Intent fillInIntent, String resolvedType, IBinder resultTo,
String resultWho, int requestCode, int flagsMask, int flagsValues, Bundle bOptions)
throws TransactionTooLargeException {
enforceNotIsolatedCaller("startActivityIntentSender");
// Refuse possible leaked file descriptors
if (fillInIntent != null && fillInIntent.hasFileDescriptors()) {
throw new IllegalArgumentException("File descriptors passed in Intent");
}
if (!(target instanceof PendingIntentRecord)) {
throw new IllegalArgumentException("Bad PendingIntent object");
}
PendingIntentRecord pir = (PendingIntentRecord)target;
synchronized (this) {
// If this is coming from the currently resumed activity, it is
// effectively saying that app switches are allowed at this point.
final ActivityStack stack = getFocusedStack();
if (stack.mResumedActivity != null &&
stack.mResumedActivity.info.applicationInfo.uid == Binder.getCallingUid()) {
mAppSwitchesAllowedTime = 0;
}
}
int ret = pir.sendInner(0, fillInIntent, resolvedType, whitelistToken, null, null,
resultTo, resultWho, requestCode, flagsMask, flagsValues, bOptions);
return ret;
}
@Override
public int startVoiceActivity(String callingPackage, int callingPid, int callingUid,
Intent intent, String resolvedType, IVoiceInteractionSession session,
IVoiceInteractor interactor, int startFlags, ProfilerInfo profilerInfo,
Bundle bOptions, int userId) {
if (checkCallingPermission(Manifest.permission.BIND_VOICE_INTERACTION)
!= PackageManager.PERMISSION_GRANTED) {
String msg = "Permission Denial: startVoiceActivity() from pid="
+ Binder.getCallingPid()
+ ", uid=" + Binder.getCallingUid()
+ " requires " + android.Manifest.permission.BIND_VOICE_INTERACTION;
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
if (session == null || interactor == null) {
throw new NullPointerException("null session or interactor");
}
userId = mUserController.handleIncomingUser(callingPid, callingUid, userId, false,
ALLOW_FULL_ONLY, "startVoiceActivity", null);
// TODO: Switch to user app stacks here.
return mActivityStarter.startActivityMayWait(null, callingUid, callingPackage, intent,
resolvedType, session, interactor, null, null, 0, startFlags, profilerInfo, null,
null, bOptions, false, userId, null, "startVoiceActivity");
}
@Override
public int startAssistantActivity(String callingPackage, int callingPid, int callingUid,
Intent intent, String resolvedType, Bundle bOptions, int userId) {
if (checkCallingPermission(Manifest.permission.BIND_VOICE_INTERACTION)
!= PackageManager.PERMISSION_GRANTED) {
final String msg = "Permission Denial: startAssistantActivity() from pid="
+ Binder.getCallingPid()
+ ", uid=" + Binder.getCallingUid()
+ " requires " + Manifest.permission.BIND_VOICE_INTERACTION;
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
userId = mUserController.handleIncomingUser(callingPid, callingUid, userId, false,
ALLOW_FULL_ONLY, "startAssistantActivity", null);
return mActivityStarter.startActivityMayWait(null, callingUid, callingPackage, intent,
resolvedType, null, null, null, null, 0, 0, null, null, null, bOptions, false,
userId, null, "startAssistantActivity");
}
@Override
public void startLocalVoiceInteraction(IBinder callingActivity, Bundle options)
throws RemoteException {
Slog.i(TAG, "Activity tried to startVoiceInteraction");
synchronized (this) {
ActivityRecord activity = getFocusedStack().topActivity();
if (ActivityRecord.forTokenLocked(callingActivity) != activity) {
throw new SecurityException("Only focused activity can call startVoiceInteraction");
}
if (mRunningVoice != null || activity.getTask().voiceSession != null
|| activity.voiceSession != null) {
Slog.w(TAG, "Already in a voice interaction, cannot start new voice interaction");
return;
}
if (activity.pendingVoiceInteractionStart) {
Slog.w(TAG, "Pending start of voice interaction already.");
return;
}
activity.pendingVoiceInteractionStart = true;
}
LocalServices.getService(VoiceInteractionManagerInternal.class)
.startLocalVoiceInteraction(callingActivity, options);
}
@Override
public void stopLocalVoiceInteraction(IBinder callingActivity) throws RemoteException {
LocalServices.getService(VoiceInteractionManagerInternal.class)
.stopLocalVoiceInteraction(callingActivity);
}
@Override
public boolean supportsLocalVoiceInteraction() throws RemoteException {
return LocalServices.getService(VoiceInteractionManagerInternal.class)
.supportsLocalVoiceInteraction();
}
void onLocalVoiceInteractionStartedLocked(IBinder activity,
IVoiceInteractionSession voiceSession, IVoiceInteractor voiceInteractor) {
ActivityRecord activityToCallback = ActivityRecord.forTokenLocked(activity);
if (activityToCallback == null) return;
activityToCallback.setVoiceSessionLocked(voiceSession);
// Inform the activity
try {
activityToCallback.app.thread.scheduleLocalVoiceInteractionStarted(activity,
voiceInteractor);
long token = Binder.clearCallingIdentity();
try {
startRunningVoiceLocked(voiceSession, activityToCallback.appInfo.uid);
} finally {
Binder.restoreCallingIdentity(token);
}
// TODO: VI Should we cache the activity so that it's easier to find later
// rather than scan through all the stacks and activities?
} catch (RemoteException re) {
activityToCallback.clearVoiceSessionLocked();
// TODO: VI Should this terminate the voice session?
}
}
@Override
public void setVoiceKeepAwake(IVoiceInteractionSession session, boolean keepAwake) {
synchronized (this) {
if (mRunningVoice != null && mRunningVoice.asBinder() == session.asBinder()) {
if (keepAwake) {
mVoiceWakeLock.acquire();
} else {
mVoiceWakeLock.release();
}
}
}
}
@Override
public boolean startNextMatchingActivity(IBinder callingActivity,
Intent intent, Bundle bOptions) {
// Refuse possible leaked file descriptors
if (intent != null && intent.hasFileDescriptors() == true) {
throw new IllegalArgumentException("File descriptors passed in Intent");
}
ActivityOptions options = ActivityOptions.fromBundle(bOptions);
synchronized (this) {
final ActivityRecord r = ActivityRecord.isInStackLocked(callingActivity);
if (r == null) {
ActivityOptions.abort(options);
return false;
}
if (r.app == null || r.app.thread == null) {
// The caller is not running... d'oh!
ActivityOptions.abort(options);
return false;
}
intent = new Intent(intent);
// The caller is not allowed to change the data.
intent.setDataAndType(r.intent.getData(), r.intent.getType());
// And we are resetting to find the next component...
intent.setComponent(null);
final boolean debug = ((intent.getFlags() & Intent.FLAG_DEBUG_LOG_RESOLUTION) != 0);
ActivityInfo aInfo = null;
try {
List<ResolveInfo> resolves =
AppGlobals.getPackageManager().queryIntentActivities(
intent, r.resolvedType,
PackageManager.MATCH_DEFAULT_ONLY | STOCK_PM_FLAGS,
UserHandle.getCallingUserId()).getList();
// Look for the original activity in the list...
final int N = resolves != null ? resolves.size() : 0;
for (int i=0; i<N; i++) {
ResolveInfo rInfo = resolves.get(i);
if (rInfo.activityInfo.packageName.equals(r.packageName)
&& rInfo.activityInfo.name.equals(r.info.name)) {
// We found the current one... the next matching is
// after it.
i++;
if (i<N) {
aInfo = resolves.get(i).activityInfo;
}
if (debug) {
Slog.v(TAG, "Next matching activity: found current " + r.packageName
+ "/" + r.info.name);
Slog.v(TAG, "Next matching activity: next is " + ((aInfo == null)
? "null" : aInfo.packageName + "/" + aInfo.name));
}
break;
}
}
} catch (RemoteException e) {
}
if (aInfo == null) {
// Nobody who is next!
ActivityOptions.abort(options);
if (debug) Slog.d(TAG, "Next matching activity: nothing found");
return false;
}
intent.setComponent(new ComponentName(
aInfo.applicationInfo.packageName, aInfo.name));
intent.setFlags(intent.getFlags()&~(
Intent.FLAG_ACTIVITY_FORWARD_RESULT|
Intent.FLAG_ACTIVITY_CLEAR_TOP|
Intent.FLAG_ACTIVITY_MULTIPLE_TASK|
Intent.FLAG_ACTIVITY_NEW_TASK));
// Okay now we need to start the new activity, replacing the
// currently running activity. This is a little tricky because
// we want to start the new one as if the current one is finished,
// but not finish the current one first so that there is no flicker.
// And thus...
final boolean wasFinishing = r.finishing;
r.finishing = true;
// Propagate reply information over to the new activity.
final ActivityRecord resultTo = r.resultTo;
final String resultWho = r.resultWho;
final int requestCode = r.requestCode;
r.resultTo = null;
if (resultTo != null) {
resultTo.removeResultsLocked(r, resultWho, requestCode);
}
final long origId = Binder.clearCallingIdentity();
int res = mActivityStarter.startActivityLocked(r.app.thread, intent,
null /*ephemeralIntent*/, r.resolvedType, aInfo, null /*rInfo*/, null,
null, resultTo != null ? resultTo.appToken : null, resultWho, requestCode, -1,
r.launchedFromUid, r.launchedFromPackage, -1, r.launchedFromUid, 0, options,
false, false, null, null, "startNextMatchingActivity");
Binder.restoreCallingIdentity(origId);
r.finishing = wasFinishing;
if (res != ActivityManager.START_SUCCESS) {
return false;
}
return true;
}
}
@Override
public final int startActivityFromRecents(int taskId, Bundle bOptions) {
enforceCallerIsRecentsOrHasPermission(START_TASKS_FROM_RECENTS,
"startActivityFromRecents()");
final long origId = Binder.clearCallingIdentity();
try {
synchronized (this) {
return mStackSupervisor.startActivityFromRecents(taskId, bOptions);
}
} finally {
Binder.restoreCallingIdentity(origId);
}
}
final int startActivityInPackage(int uid, String callingPackage,
Intent intent, String resolvedType, IBinder resultTo,
String resultWho, int requestCode, int startFlags, Bundle bOptions, int userId,
TaskRecord inTask, String reason) {
userId = mUserController.handleIncomingUser(Binder.getCallingPid(), Binder.getCallingUid(),
userId, false, ALLOW_FULL_ONLY, "startActivityInPackage", null);
// TODO: Switch to user app stacks here.
return mActivityStarter.startActivityMayWait(null, uid, callingPackage, intent,
resolvedType, null, null, resultTo, resultWho, requestCode, startFlags,
null, null, null, bOptions, false, userId, inTask, reason);
}
@Override
public final int startActivities(IApplicationThread caller, String callingPackage,
Intent[] intents, String[] resolvedTypes, IBinder resultTo, Bundle bOptions,
int userId) {
final String reason = "startActivities";
enforceNotIsolatedCaller(reason);
userId = mUserController.handleIncomingUser(Binder.getCallingPid(), Binder.getCallingUid(),
userId, false, ALLOW_FULL_ONLY, reason, null);
// TODO: Switch to user app stacks here.
int ret = mActivityStarter.startActivities(caller, -1, callingPackage, intents,
resolvedTypes, resultTo, bOptions, userId, reason);
return ret;
}
final int startActivitiesInPackage(int uid, String callingPackage,
Intent[] intents, String[] resolvedTypes, IBinder resultTo,
Bundle bOptions, int userId) {
final String reason = "startActivityInPackage";
userId = mUserController.handleIncomingUser(Binder.getCallingPid(), Binder.getCallingUid(),
userId, false, ALLOW_FULL_ONLY, reason, null);
// TODO: Switch to user app stacks here.
int ret = mActivityStarter.startActivities(null, uid, callingPackage, intents, resolvedTypes,
resultTo, bOptions, userId, reason);
return ret;
}
@Override
public void reportActivityFullyDrawn(IBinder token, boolean restoredFromBundle) {
synchronized (this) {
ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r == null) {
return;
}
r.reportFullyDrawnLocked(restoredFromBundle);
}
}
@Override
public void setRequestedOrientation(IBinder token, int requestedOrientation) {
synchronized (this) {
ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r == null) {
return;
}
final long origId = Binder.clearCallingIdentity();
try {
r.setRequestedOrientation(requestedOrientation);
} finally {
Binder.restoreCallingIdentity(origId);
}
}
}
@Override
public int getRequestedOrientation(IBinder token) {
synchronized (this) {
ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r == null) {
return ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED;
}
return r.getRequestedOrientation();
}
}
@Override
public final void requestActivityRelaunch(IBinder token) {
synchronized(this) {
ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r == null) {
return;
}
final long origId = Binder.clearCallingIdentity();
try {
r.forceNewConfig = true;
r.ensureActivityConfigurationLocked(0 /* globalChanges */,
true /* preserveWindow */);
} finally {
Binder.restoreCallingIdentity(origId);
}
}
}
/**
* This is the internal entry point for handling Activity.finish().
*
* @param token The Binder token referencing the Activity we want to finish.
* @param resultCode Result code, if any, from this Activity.
* @param resultData Result data (Intent), if any, from this Activity.
* @param finishTask Whether to finish the task associated with this Activity.
*
* @return Returns true if the activity successfully finished, or false if it is still running.
*/
@Override
public final boolean finishActivity(IBinder token, int resultCode, Intent resultData,
int finishTask) {
// Refuse possible leaked file descriptors
if (resultData != null && resultData.hasFileDescriptors() == true) {
throw new IllegalArgumentException("File descriptors passed in Intent");
}
synchronized(this) {
ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r == null) {
return true;
}
// Keep track of the root activity of the task before we finish it
TaskRecord tr = r.getTask();
ActivityRecord rootR = tr.getRootActivity();
if (rootR == null) {
Slog.w(TAG, "Finishing task with all activities already finished");
}
// Do not allow task to finish if last task in lockTask mode. Launchable priv-apps can
// finish.
if (mLockTaskController.activityBlockedFromFinish(r)) {
return false;
}
if (mController != null) {
// Find the first activity that is not finishing.
ActivityRecord next = r.getStack().topRunningActivityLocked(token, 0);
if (next != null) {
// ask watcher if this is allowed
boolean resumeOK = true;
try {
resumeOK = mController.activityResuming(next.packageName);
} catch (RemoteException e) {
mController = null;
Watchdog.getInstance().setActivityController(null);
}
if (!resumeOK) {
Slog.i(TAG, "Not finishing activity because controller resumed");
return false;
}
}
}
final long origId = Binder.clearCallingIdentity();
try {
boolean res;
final boolean finishWithRootActivity =
finishTask == Activity.FINISH_TASK_WITH_ROOT_ACTIVITY;
if (finishTask == Activity.FINISH_TASK_WITH_ACTIVITY
|| (finishWithRootActivity && r == rootR)) {
// If requested, remove the task that is associated to this activity only if it
// was the root activity in the task. The result code and data is ignored
// because we don't support returning them across task boundaries. Also, to
// keep backwards compatibility we remove the task from recents when finishing
// task with root activity.
res = mStackSupervisor.removeTaskByIdLocked(tr.taskId, false, finishWithRootActivity);
if (!res) {
Slog.i(TAG, "Removing task failed to finish activity");
}
} else {
res = tr.getStack().requestFinishActivityLocked(token, resultCode,
resultData, "app-request", true);
if (!res) {
Slog.i(TAG, "Failed to finish by app-request");
}
}
return res;
} finally {
Binder.restoreCallingIdentity(origId);
}
}
}
@Override
public final void finishHeavyWeightApp() {
if (checkCallingPermission(android.Manifest.permission.FORCE_STOP_PACKAGES)
!= PackageManager.PERMISSION_GRANTED) {
String msg = "Permission Denial: finishHeavyWeightApp() from pid="
+ Binder.getCallingPid()
+ ", uid=" + Binder.getCallingUid()
+ " requires " + android.Manifest.permission.FORCE_STOP_PACKAGES;
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
synchronized(this) {
final ProcessRecord proc = mHeavyWeightProcess;
if (proc == null) {
return;
}
ArrayList<ActivityRecord> activities = new ArrayList<>(proc.activities);
for (int i = 0; i < activities.size(); i++) {
ActivityRecord r = activities.get(i);
if (!r.finishing && r.isInStackLocked()) {
r.getStack().finishActivityLocked(r, Activity.RESULT_CANCELED,
null, "finish-heavy", true);
}
}
mHandler.sendMessage(mHandler.obtainMessage(CANCEL_HEAVY_NOTIFICATION_MSG,
proc.userId, 0));
mHeavyWeightProcess = null;
}
}
@Override
public void crashApplication(int uid, int initialPid, String packageName, int userId,
String message) {
if (checkCallingPermission(android.Manifest.permission.FORCE_STOP_PACKAGES)
!= PackageManager.PERMISSION_GRANTED) {
String msg = "Permission Denial: crashApplication() from pid="
+ Binder.getCallingPid()
+ ", uid=" + Binder.getCallingUid()
+ " requires " + android.Manifest.permission.FORCE_STOP_PACKAGES;
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
synchronized(this) {
mAppErrors.scheduleAppCrashLocked(uid, initialPid, packageName, userId, message);
}
}
@Override
public final void finishSubActivity(IBinder token, String resultWho,
int requestCode) {
synchronized(this) {
final long origId = Binder.clearCallingIdentity();
ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r != null) {
r.getStack().finishSubActivityLocked(r, resultWho, requestCode);
}
Binder.restoreCallingIdentity(origId);
}
}
@Override
public boolean finishActivityAffinity(IBinder token) {
synchronized(this) {
final long origId = Binder.clearCallingIdentity();
try {
ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r == null) {
return false;
}
// Do not allow task to finish if last task in lockTask mode. Launchable priv-apps
// can finish.
final TaskRecord task = r.getTask();
if (mLockTaskController.activityBlockedFromFinish(r)) {
return false;
}
return task.getStack().finishActivityAffinityLocked(r);
} finally {
Binder.restoreCallingIdentity(origId);
}
}
}
@Override
public void finishVoiceTask(IVoiceInteractionSession session) {
synchronized (this) {
final long origId = Binder.clearCallingIdentity();
try {
// TODO: VI Consider treating local voice interactions and voice tasks
// differently here
mStackSupervisor.finishVoiceTask(session);
} finally {
Binder.restoreCallingIdentity(origId);
}
}
}
@Override
public boolean releaseActivityInstance(IBinder token) {
synchronized(this) {
final long origId = Binder.clearCallingIdentity();
try {
ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r == null) {
return false;
}
return r.getStack().safelyDestroyActivityLocked(r, "app-req");
} finally {
Binder.restoreCallingIdentity(origId);
}
}
}
@Override
public void releaseSomeActivities(IApplicationThread appInt) {
synchronized(this) {
final long origId = Binder.clearCallingIdentity();
try {
ProcessRecord app = getRecordForAppLocked(appInt);
mStackSupervisor.releaseSomeActivitiesLocked(app, "low-mem");
} finally {
Binder.restoreCallingIdentity(origId);
}
}
}
@Override
public boolean willActivityBeVisible(IBinder token) {
synchronized(this) {
ActivityStack stack = ActivityRecord.getStackLocked(token);
if (stack != null) {
return stack.willActivityBeVisibleLocked(token);
}
return false;
}
}
@Override
public void overridePendingTransition(IBinder token, String packageName,
int enterAnim, int exitAnim) {
synchronized(this) {
ActivityRecord self = ActivityRecord.isInStackLocked(token);
if (self == null) {
return;
}
final long origId = Binder.clearCallingIdentity();
if (self.state == ActivityState.RESUMED
|| self.state == ActivityState.PAUSING) {
mWindowManager.overridePendingAppTransition(packageName,
enterAnim, exitAnim, null);
}
Binder.restoreCallingIdentity(origId);
}
}
/**
* Main function for removing an existing process from the activity manager
* as a result of that process going away. Clears out all connections
* to the process.
*/
private final void handleAppDiedLocked(ProcessRecord app,
boolean restarting, boolean allowRestart) {
int pid = app.pid;
boolean kept = cleanUpApplicationRecordLocked(app, restarting, allowRestart, -1,
false /*replacingPid*/);
if (!kept && !restarting) {
removeLruProcessLocked(app);
if (pid > 0) {
ProcessList.remove(pid);
}
}
if (mProfileProc == app) {
clearProfilerLocked();
}
// Remove this application's activities from active lists.
boolean hasVisibleActivities = mStackSupervisor.handleAppDiedLocked(app);
app.activities.clear();
if (app.instr != null) {
Slog.w(TAG, "Crash of app " + app.processName
+ " running instrumentation " + app.instr.mClass);
Bundle info = new Bundle();
info.putString("shortMsg", "Process crashed.");
finishInstrumentationLocked(app, Activity.RESULT_CANCELED, info);
}
mWindowManager.deferSurfaceLayout();
try {
if (!restarting && hasVisibleActivities
&& !mStackSupervisor.resumeFocusedStackTopActivityLocked()) {
// If there was nothing to resume, and we are not already restarting this process, but
// there is a visible activity that is hosted by the process... then make sure all
// visible activities are running, taking care of restarting this process.
mStackSupervisor.ensureActivitiesVisibleLocked(null, 0, !PRESERVE_WINDOWS);
}
} finally {
mWindowManager.continueSurfaceLayout();
}
}
private final int getLRURecordIndexForAppLocked(IApplicationThread thread) {
final IBinder threadBinder = thread.asBinder();
// Find the application record.
for (int i=mLruProcesses.size()-1; i>=0; i--) {
final ProcessRecord rec = mLruProcesses.get(i);
if (rec.thread != null && rec.thread.asBinder() == threadBinder) {
return i;
}
}
return -1;
}
final ProcessRecord getRecordForAppLocked(
IApplicationThread thread) {
if (thread == null) {
return null;
}
int appIndex = getLRURecordIndexForAppLocked(thread);
if (appIndex >= 0) {
return mLruProcesses.get(appIndex);
}
// Validation: if it isn't in the LRU list, it shouldn't exist, but let's
// double-check that.
final IBinder threadBinder = thread.asBinder();
final ArrayMap<String, SparseArray<ProcessRecord>> pmap = mProcessNames.getMap();
for (int i = pmap.size()-1; i >= 0; i--) {
final SparseArray<ProcessRecord> procs = pmap.valueAt(i);
for (int j = procs.size()-1; j >= 0; j--) {
final ProcessRecord proc = procs.valueAt(j);
if (proc.thread != null && proc.thread.asBinder() == threadBinder) {
Slog.wtf(TAG, "getRecordForApp: exists in name list but not in LRU list: "
+ proc);
return proc;
}
}
}
return null;
}
final void doLowMemReportIfNeededLocked(ProcessRecord dyingProc) {
// If there are no longer any background processes running,
// and the app that died was not running instrumentation,
// then tell everyone we are now low on memory.
boolean haveBg = false;
for (int i=mLruProcesses.size()-1; i>=0; i--) {
ProcessRecord rec = mLruProcesses.get(i);
if (rec.thread != null
&& rec.setProcState >= ActivityManager.PROCESS_STATE_CACHED_ACTIVITY) {
haveBg = true;
break;
}
}
if (!haveBg) {
boolean doReport = "1".equals(SystemProperties.get(SYSTEM_DEBUGGABLE, "0"));
if (doReport) {
long now = SystemClock.uptimeMillis();
if (now < (mLastMemUsageReportTime+5*60*1000)) {
doReport = false;
} else {
mLastMemUsageReportTime = now;
}
}
final ArrayList<ProcessMemInfo> memInfos
= doReport ? new ArrayList<ProcessMemInfo>(mLruProcesses.size()) : null;
EventLog.writeEvent(EventLogTags.AM_LOW_MEMORY, mLruProcesses.size());
long now = SystemClock.uptimeMillis();
for (int i=mLruProcesses.size()-1; i>=0; i--) {
ProcessRecord rec = mLruProcesses.get(i);
if (rec == dyingProc || rec.thread == null) {
continue;
}
if (doReport) {
memInfos.add(new ProcessMemInfo(rec.processName, rec.pid, rec.setAdj,
rec.setProcState, rec.adjType, rec.makeAdjReason()));
}
if ((rec.lastLowMemory+mConstants.GC_MIN_INTERVAL) <= now) {
// The low memory report is overriding any current
// state for a GC request. Make sure to do
// heavy/important/visible/foreground processes first.
if (rec.setAdj <= ProcessList.HEAVY_WEIGHT_APP_ADJ) {
rec.lastRequestedGc = 0;
} else {
rec.lastRequestedGc = rec.lastLowMemory;
}
rec.reportLowMemory = true;
rec.lastLowMemory = now;
mProcessesToGc.remove(rec);
addProcessToGcListLocked(rec);
}
}
if (doReport) {
Message msg = mHandler.obtainMessage(REPORT_MEM_USAGE_MSG, memInfos);
mHandler.sendMessage(msg);
}
scheduleAppGcsLocked();
}
}
final void appDiedLocked(ProcessRecord app) {
appDiedLocked(app, app.pid, app.thread, false);
}
final void appDiedLocked(ProcessRecord app, int pid, IApplicationThread thread,
boolean fromBinderDied) {
// First check if this ProcessRecord is actually active for the pid.
synchronized (mPidsSelfLocked) {
ProcessRecord curProc = mPidsSelfLocked.get(pid);
if (curProc != app) {
Slog.w(TAG, "Spurious death for " + app + ", curProc for " + pid + ": " + curProc);
return;
}
}
BatteryStatsImpl stats = mBatteryStatsService.getActiveStatistics();
synchronized (stats) {
stats.noteProcessDiedLocked(app.info.uid, pid);
}
if (!app.killed) {
if (!fromBinderDied) {
killProcessQuiet(pid);
}
killProcessGroup(app.uid, pid);
app.killed = true;
}
// Clean up already done if the process has been re-started.
if (app.pid == pid && app.thread != null &&
app.thread.asBinder() == thread.asBinder()) {
boolean doLowMem = app.instr == null;
boolean doOomAdj = doLowMem;
if (!app.killedByAm) {
Slog.i(TAG, "Process " + app.processName + " (pid " + pid + ") has died: "
+ ProcessList.makeOomAdjString(app.setAdj)
+ ProcessList.makeProcStateString(app.setProcState));
mAllowLowerMemLevel = true;
} else {
// Note that we always want to do oom adj to update our state with the
// new number of procs.
mAllowLowerMemLevel = false;
doLowMem = false;
}
EventLog.writeEvent(EventLogTags.AM_PROC_DIED, app.userId, app.pid, app.processName,
app.setAdj, app.setProcState);
if (DEBUG_CLEANUP) Slog.v(TAG_CLEANUP,
"Dying app: " + app + ", pid: " + pid + ", thread: " + thread.asBinder());
handleAppDiedLocked(app, false, true);
if (doOomAdj) {
updateOomAdjLocked();
}
if (doLowMem) {
doLowMemReportIfNeededLocked(app);
}
} else if (app.pid != pid) {
// A new process has already been started.
Slog.i(TAG, "Process " + app.processName + " (pid " + pid
+ ") has died and restarted (pid " + app.pid + ").");
EventLog.writeEvent(EventLogTags.AM_PROC_DIED, app.userId, app.pid, app.processName);
} else if (DEBUG_PROCESSES) {
Slog.d(TAG_PROCESSES, "Received spurious death notification for thread "
+ thread.asBinder());
}
}
/**
* If a stack trace dump file is configured, dump process stack traces.
* @param clearTraces causes the dump file to be erased prior to the new
* traces being written, if true; when false, the new traces will be
* appended to any existing file content.
* @param firstPids of dalvik VM processes to dump stack traces for first
* @param lastPids of dalvik VM processes to dump stack traces for last
* @param nativePids optional list of native pids to dump stack crawls
*/
public static File dumpStackTraces(boolean clearTraces, ArrayList<Integer> firstPids,
ProcessCpuTracker processCpuTracker, SparseArray<Boolean> lastPids,
ArrayList<Integer> nativePids) {
ArrayList<Integer> extraPids = null;
// Measure CPU usage as soon as we're called in order to get a realistic sampling
// of the top users at the time of the request.
if (processCpuTracker != null) {
processCpuTracker.init();
try {
Thread.sleep(200);
} catch (InterruptedException ignored) {
}
processCpuTracker.update();
// We'll take the stack crawls of just the top apps using CPU.
final int N = processCpuTracker.countWorkingStats();
extraPids = new ArrayList<>();
for (int i = 0; i < N && extraPids.size() < 5; i++) {
ProcessCpuTracker.Stats stats = processCpuTracker.getWorkingStats(i);
if (lastPids.indexOfKey(stats.pid) >= 0) {
if (DEBUG_ANR) Slog.d(TAG, "Collecting stacks for extra pid " + stats.pid);
extraPids.add(stats.pid);
} else if (DEBUG_ANR) {
Slog.d(TAG, "Skipping next CPU consuming process, not a java proc: "
+ stats.pid);
}
}
}
boolean useTombstonedForJavaTraces = false;
File tracesFile;
final String tracesDirProp = SystemProperties.get("dalvik.vm.stack-trace-dir", "");
if (tracesDirProp.isEmpty()) {
// When dalvik.vm.stack-trace-dir is not set, we are using the "old" trace
// dumping scheme. All traces are written to a global trace file (usually
// "/data/anr/traces.txt") so the code below must take care to unlink and recreate
// the file if requested.
//
// This mode of operation will be removed in the near future.
String globalTracesPath = SystemProperties.get("dalvik.vm.stack-trace-file", null);
if (globalTracesPath.isEmpty()) {
Slog.w(TAG, "dumpStackTraces: no trace path configured");
return null;
}
tracesFile = new File(globalTracesPath);
try {
if (clearTraces && tracesFile.exists()) {
tracesFile.delete();
}
tracesFile.createNewFile();
FileUtils.setPermissions(globalTracesPath, 0666, -1, -1); // -rw-rw-rw-
} catch (IOException e) {
Slog.w(TAG, "Unable to prepare ANR traces file: " + tracesFile, e);
return null;
}
} else {
File tracesDir = new File(tracesDirProp);
// When dalvik.vm.stack-trace-dir is set, we use the "new" trace dumping scheme.
// Each set of ANR traces is written to a separate file and dumpstate will process
// all such files and add them to a captured bug report if they're recent enough.
maybePruneOldTraces(tracesDir);
// NOTE: We should consider creating the file in native code atomically once we've
// gotten rid of the old scheme of dumping and lot of the code that deals with paths
// can be removed.
tracesFile = createAnrDumpFile(tracesDir);
if (tracesFile == null) {
return null;
}
useTombstonedForJavaTraces = true;
}
dumpStackTraces(tracesFile.getAbsolutePath(), firstPids, nativePids, extraPids,
useTombstonedForJavaTraces);
return tracesFile;
}
@GuardedBy("ActivityManagerService.class")
private static SimpleDateFormat sAnrFileDateFormat;
private static synchronized File createAnrDumpFile(File tracesDir) {
if (sAnrFileDateFormat == null) {
sAnrFileDateFormat = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss-SSS");
}
final String formattedDate = sAnrFileDateFormat.format(new Date());
final File anrFile = new File(tracesDir, "anr_" + formattedDate);
try {
if (anrFile.createNewFile()) {
FileUtils.setPermissions(anrFile.getAbsolutePath(), 0600, -1, -1); // -rw-------
return anrFile;
} else {
Slog.w(TAG, "Unable to create ANR dump file: createNewFile failed");
}
} catch (IOException ioe) {
Slog.w(TAG, "Exception creating ANR dump file:", ioe);
}
return null;
}
/**
* Prune all trace files that are more than a day old.
*
* NOTE: It might make sense to move this functionality to tombstoned eventually, along with a
* shift away from anr_XX and tombstone_XX to a more descriptive name. We do it here for now
* since it's the system_server that creates trace files for most ANRs.
*/
private static void maybePruneOldTraces(File tracesDir) {
final long now = System.currentTimeMillis();
final File[] traceFiles = tracesDir.listFiles();
if (traceFiles != null) {
for (File file : traceFiles) {
if ((now - file.lastModified()) > DAY_IN_MILLIS) {
if (!file.delete()) {
Slog.w(TAG, "Unable to prune stale trace file: " + file);
}
}
}
}
}
/**
* Legacy code, do not use. Existing users will be deleted.
*
* @deprecated
*/
@Deprecated
public static class DumpStackFileObserver extends FileObserver {
// Keep in sync with frameworks/native/cmds/dumpstate/utils.cpp
private static final int TRACE_DUMP_TIMEOUT_MS = 10000; // 10 seconds
private final String mTracesPath;
private boolean mClosed;
public DumpStackFileObserver(String tracesPath) {
super(tracesPath, FileObserver.CLOSE_WRITE);
mTracesPath = tracesPath;
}
@Override
public synchronized void onEvent(int event, String path) {
mClosed = true;
notify();
}
public long dumpWithTimeout(int pid, long timeout) {
sendSignal(pid, SIGNAL_QUIT);
final long start = SystemClock.elapsedRealtime();
final long waitTime = Math.min(timeout, TRACE_DUMP_TIMEOUT_MS);
synchronized (this) {
try {
wait(waitTime); // Wait for traces file to be closed.
} catch (InterruptedException e) {
Slog.wtf(TAG, e);
}
}
// This avoids a corner case of passing a negative time to the native
// trace in case we've already hit the overall timeout.
final long timeWaited = SystemClock.elapsedRealtime() - start;
if (timeWaited >= timeout) {
return timeWaited;
}
if (!mClosed) {
Slog.w(TAG, "Didn't see close of " + mTracesPath + " for pid " + pid +
". Attempting native stack collection.");
final long nativeDumpTimeoutMs = Math.min(
NATIVE_DUMP_TIMEOUT_MS, timeout - timeWaited);
Debug.dumpNativeBacktraceToFileTimeout(pid, mTracesPath,
(int) (nativeDumpTimeoutMs / 1000));
}
final long end = SystemClock.elapsedRealtime();
mClosed = false;
return (end - start);
}
}
/**
* Dump java traces for process {@code pid} to the specified file. If java trace dumping
* fails, a native backtrace is attempted. Note that the timeout {@code timeoutMs} only applies
* to the java section of the trace, a further {@code NATIVE_DUMP_TIMEOUT_MS} might be spent
* attempting to obtain native traces in the case of a failure. Returns the total time spent
* capturing traces.
*/
private static long dumpJavaTracesTombstoned(int pid, String fileName, long timeoutMs) {
final long timeStart = SystemClock.elapsedRealtime();
if (!Debug.dumpJavaBacktraceToFileTimeout(pid, fileName, (int) (timeoutMs / 1000))) {
Debug.dumpNativeBacktraceToFileTimeout(pid, fileName,
(NATIVE_DUMP_TIMEOUT_MS / 1000));
}
return SystemClock.elapsedRealtime() - timeStart;
}
private static void dumpStackTraces(String tracesFile, ArrayList<Integer> firstPids,
ArrayList<Integer> nativePids, ArrayList<Integer> extraPids,
boolean useTombstonedForJavaTraces) {
// We don't need any sort of inotify based monitoring when we're dumping traces via
// tombstoned. Data is piped to an "intercept" FD installed in tombstoned so we're in full
// control of all writes to the file in question.
final DumpStackFileObserver observer;
if (useTombstonedForJavaTraces) {
observer = null;
} else {
// Use a FileObserver to detect when traces finish writing.
// The order of traces is considered important to maintain for legibility.
observer = new DumpStackFileObserver(tracesFile);
}
// We must complete all stack dumps within 20 seconds.
long remainingTime = 20 * 1000;
try {
if (observer != null) {
observer.startWatching();
}
// First collect all of the stacks of the most important pids.
if (firstPids != null) {
int num = firstPids.size();
for (int i = 0; i < num; i++) {
if (DEBUG_ANR) Slog.d(TAG, "Collecting stacks for pid "
+ firstPids.get(i));
final long timeTaken;
if (useTombstonedForJavaTraces) {
timeTaken = dumpJavaTracesTombstoned(firstPids.get(i), tracesFile, remainingTime);
} else {
timeTaken = observer.dumpWithTimeout(firstPids.get(i), remainingTime);
}
remainingTime -= timeTaken;
if (remainingTime <= 0) {
Slog.e(TAG, "Aborting stack trace dump (current firstPid=" + firstPids.get(i) +
"); deadline exceeded.");
return;
}
if (DEBUG_ANR) {
Slog.d(TAG, "Done with pid " + firstPids.get(i) + " in " + timeTaken + "ms");
}
}
}
// Next collect the stacks of the native pids
if (nativePids != null) {
for (int pid : nativePids) {
if (DEBUG_ANR) Slog.d(TAG, "Collecting stacks for native pid " + pid);
final long nativeDumpTimeoutMs = Math.min(NATIVE_DUMP_TIMEOUT_MS, remainingTime);
final long start = SystemClock.elapsedRealtime();
Debug.dumpNativeBacktraceToFileTimeout(
pid, tracesFile, (int) (nativeDumpTimeoutMs / 1000));
final long timeTaken = SystemClock.elapsedRealtime() - start;
remainingTime -= timeTaken;
if (remainingTime <= 0) {
Slog.e(TAG, "Aborting stack trace dump (current native pid=" + pid +
"); deadline exceeded.");
return;
}
if (DEBUG_ANR) {
Slog.d(TAG, "Done with native pid " + pid + " in " + timeTaken + "ms");
}
}
}
// Lastly, dump stacks for all extra PIDs from the CPU tracker.
if (extraPids != null) {
for (int pid : extraPids) {
if (DEBUG_ANR) Slog.d(TAG, "Collecting stacks for extra pid " + pid);
final long timeTaken;
if (useTombstonedForJavaTraces) {
timeTaken = dumpJavaTracesTombstoned(pid, tracesFile, remainingTime);
} else {
timeTaken = observer.dumpWithTimeout(pid, remainingTime);
}
remainingTime -= timeTaken;
if (remainingTime <= 0) {
Slog.e(TAG, "Aborting stack trace dump (current extra pid=" + pid +
"); deadline exceeded.");
return;
}
if (DEBUG_ANR) {
Slog.d(TAG, "Done with extra pid " + pid + " in " + timeTaken + "ms");
}
}
}
} finally {
if (observer != null) {
observer.stopWatching();
}
}
}
final void logAppTooSlow(ProcessRecord app, long startTime, String msg) {
if (true || Build.IS_USER) {
return;
}
String tracesPath = SystemProperties.get("dalvik.vm.stack-trace-file", null);
if (tracesPath == null || tracesPath.length() == 0) {
return;
}
StrictMode.ThreadPolicy oldPolicy = StrictMode.allowThreadDiskReads();
StrictMode.allowThreadDiskWrites();
try {
final File tracesFile = new File(tracesPath);
final File tracesDir = tracesFile.getParentFile();
final File tracesTmp = new File(tracesDir, "__tmp__");
try {
if (tracesFile.exists()) {
tracesTmp.delete();
tracesFile.renameTo(tracesTmp);
}
StringBuilder sb = new StringBuilder();
Time tobj = new Time();
tobj.set(System.currentTimeMillis());
sb.append(tobj.format("%Y-%m-%d %H:%M:%S"));
sb.append(": ");
TimeUtils.formatDuration(SystemClock.uptimeMillis()-startTime, sb);
sb.append(" since ");
sb.append(msg);
FileOutputStream fos = new FileOutputStream(tracesFile);
fos.write(sb.toString().getBytes());
if (app == null) {
fos.write("\n*** No application process!".getBytes());
}
fos.close();
FileUtils.setPermissions(tracesFile.getPath(), 0666, -1, -1); // -rw-rw-rw-
} catch (IOException e) {
Slog.w(TAG, "Unable to prepare slow app traces file: " + tracesPath, e);
return;
}
if (app != null) {
ArrayList<Integer> firstPids = new ArrayList<Integer>();
firstPids.add(app.pid);
dumpStackTraces(tracesPath, firstPids, null, null, true /* useTombstoned */);
}
File lastTracesFile = null;
File curTracesFile = null;
for (int i=9; i>=0; i--) {
String name = String.format(Locale.US, "slow%02d.txt", i);
curTracesFile = new File(tracesDir, name);
if (curTracesFile.exists()) {
if (lastTracesFile != null) {
curTracesFile.renameTo(lastTracesFile);
} else {
curTracesFile.delete();
}
}
lastTracesFile = curTracesFile;
}
tracesFile.renameTo(curTracesFile);
if (tracesTmp.exists()) {
tracesTmp.renameTo(tracesFile);
}
} finally {
StrictMode.setThreadPolicy(oldPolicy);
}
}
final void showLaunchWarningLocked(final ActivityRecord cur, final ActivityRecord next) {
if (!mLaunchWarningShown) {
mLaunchWarningShown = true;
mUiHandler.post(new Runnable() {
@Override
public void run() {
synchronized (ActivityManagerService.this) {
final Dialog d = new LaunchWarningWindow(mContext, cur, next);
d.show();
mUiHandler.postDelayed(new Runnable() {
@Override
public void run() {
synchronized (ActivityManagerService.this) {
d.dismiss();
mLaunchWarningShown = false;
}
}
}, 4000);
}
}
});
}
}
@Override
public boolean clearApplicationUserData(final String packageName,
final IPackageDataObserver observer, int userId) {
enforceNotIsolatedCaller("clearApplicationUserData");
int uid = Binder.getCallingUid();
int pid = Binder.getCallingPid();
final int resolvedUserId = mUserController.handleIncomingUser(pid, uid, userId, false,
ALLOW_FULL_ONLY, "clearApplicationUserData", null);
final ApplicationInfo appInfo;
final boolean isInstantApp;
long callingId = Binder.clearCallingIdentity();
try {
IPackageManager pm = AppGlobals.getPackageManager();
synchronized(this) {
// Instant packages are not protected
if (getPackageManagerInternalLocked().isPackageDataProtected(
resolvedUserId, packageName)) {
throw new SecurityException(
"Cannot clear data for a protected package: " + packageName);
}
ApplicationInfo applicationInfo = null;
try {
applicationInfo = pm.getApplicationInfo(packageName,
MATCH_UNINSTALLED_PACKAGES, resolvedUserId);
} catch (RemoteException e) {
/* ignore */
}
appInfo = applicationInfo;
final boolean clearingOwnUidData = appInfo != null && appInfo.uid == uid;
if (!clearingOwnUidData && checkComponentPermission(permission.CLEAR_APP_USER_DATA,
pid, uid, -1, true) != PackageManager.PERMISSION_GRANTED) {
throw new SecurityException("PID " + pid + " does not have permission "
+ android.Manifest.permission.CLEAR_APP_USER_DATA + " to clear data"
+ " of package " + packageName);
}
final boolean hasInstantMetadata = getPackageManagerInternalLocked()
.hasInstantApplicationMetadata(packageName, resolvedUserId);
final boolean isUninstalledAppWithoutInstantMetadata =
(appInfo == null && !hasInstantMetadata);
isInstantApp = (appInfo != null && appInfo.isInstantApp())
|| hasInstantMetadata;
final boolean canAccessInstantApps = checkComponentPermission(
permission.ACCESS_INSTANT_APPS, pid, uid, -1, true)
== PackageManager.PERMISSION_GRANTED;
if (isUninstalledAppWithoutInstantMetadata || (isInstantApp
&& !canAccessInstantApps)) {
Slog.w(TAG, "Invalid packageName: " + packageName);
if (observer != null) {
try {
observer.onRemoveCompleted(packageName, false);
} catch (RemoteException e) {
Slog.i(TAG, "Observer no longer exists.");
}
}
return false;
}
if (appInfo != null) {
forceStopPackageLocked(packageName, appInfo.uid, "clear data");
mRecentTasks.removeTasksByPackageName(packageName, resolvedUserId);
}
}
final IPackageDataObserver localObserver = new IPackageDataObserver.Stub() {
@Override
public void onRemoveCompleted(String packageName, boolean succeeded)
throws RemoteException {
if (appInfo != null) {
synchronized (ActivityManagerService.this) {
finishForceStopPackageLocked(packageName, appInfo.uid);
}
}
final Intent intent = new Intent(Intent.ACTION_PACKAGE_DATA_CLEARED,
Uri.fromParts("package", packageName, null));
intent.addFlags(Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND);
intent.putExtra(Intent.EXTRA_UID, (appInfo != null) ? appInfo.uid : -1);
intent.putExtra(Intent.EXTRA_USER_HANDLE, resolvedUserId);
if (isInstantApp) {
intent.putExtra(Intent.EXTRA_PACKAGE_NAME, packageName);
broadcastIntentInPackage("android", SYSTEM_UID, intent, null, null, 0,
null, null, permission.ACCESS_INSTANT_APPS, null, false, false,
resolvedUserId);
} else {
broadcastIntentInPackage("android", SYSTEM_UID, intent, null, null, 0,
null, null, null, null, false, false, resolvedUserId);
}
if (observer != null) {
observer.onRemoveCompleted(packageName, succeeded);
}
}
};
try {
// Clear application user data
pm.clearApplicationUserData(packageName, localObserver, resolvedUserId);
if (appInfo != null) {
synchronized (this) {
// Remove all permissions granted from/to this package
removeUriPermissionsForPackageLocked(packageName, resolvedUserId, true);
}
// Reset notification settings.
INotificationManager inm = NotificationManager.getService();
inm.clearData(packageName, appInfo.uid, uid == appInfo.uid);
}
} catch (RemoteException e) {
}
} finally {
Binder.restoreCallingIdentity(callingId);
}
return true;
}
@Override
public void killBackgroundProcesses(final String packageName, int userId) {
if (checkCallingPermission(android.Manifest.permission.KILL_BACKGROUND_PROCESSES)
!= PackageManager.PERMISSION_GRANTED &&
checkCallingPermission(android.Manifest.permission.RESTART_PACKAGES)
!= PackageManager.PERMISSION_GRANTED) {
String msg = "Permission Denial: killBackgroundProcesses() from pid="
+ Binder.getCallingPid()
+ ", uid=" + Binder.getCallingUid()
+ " requires " + android.Manifest.permission.KILL_BACKGROUND_PROCESSES;
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
userId = mUserController.handleIncomingUser(Binder.getCallingPid(), Binder.getCallingUid(),
userId, true, ALLOW_FULL_ONLY, "killBackgroundProcesses", null);
long callingId = Binder.clearCallingIdentity();
try {
IPackageManager pm = AppGlobals.getPackageManager();
synchronized(this) {
int appId = -1;
try {
appId = UserHandle.getAppId(
pm.getPackageUid(packageName, MATCH_DEBUG_TRIAGED_MISSING, userId));
} catch (RemoteException e) {
}
if (appId == -1) {
Slog.w(TAG, "Invalid packageName: " + packageName);
return;
}
killPackageProcessesLocked(packageName, appId, userId,
ProcessList.SERVICE_ADJ, false, true, true, false, "kill background");
}
} finally {
Binder.restoreCallingIdentity(callingId);
}
}
@Override
public void killAllBackgroundProcesses() {
if (checkCallingPermission(android.Manifest.permission.KILL_BACKGROUND_PROCESSES)
!= PackageManager.PERMISSION_GRANTED) {
final String msg = "Permission Denial: killAllBackgroundProcesses() from pid="
+ Binder.getCallingPid() + ", uid=" + Binder.getCallingUid()
+ " requires " + android.Manifest.permission.KILL_BACKGROUND_PROCESSES;
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
final long callingId = Binder.clearCallingIdentity();
try {
synchronized (this) {
final ArrayList<ProcessRecord> procs = new ArrayList<>();
final int NP = mProcessNames.getMap().size();
for (int ip = 0; ip < NP; ip++) {
final SparseArray<ProcessRecord> apps = mProcessNames.getMap().valueAt(ip);
final int NA = apps.size();
for (int ia = 0; ia < NA; ia++) {
final ProcessRecord app = apps.valueAt(ia);
if (app.persistent) {
// We don't kill persistent processes.
continue;
}
if (app.removed) {
procs.add(app);
} else if (app.setAdj >= ProcessList.CACHED_APP_MIN_ADJ) {
app.removed = true;
procs.add(app);
}
}
}
final int N = procs.size();
for (int i = 0; i < N; i++) {
removeProcessLocked(procs.get(i), false, true, "kill all background");
}
mAllowLowerMemLevel = true;
updateOomAdjLocked();
doLowMemReportIfNeededLocked(null);
}
} finally {
Binder.restoreCallingIdentity(callingId);
}
}
/**
* Kills all background processes, except those matching any of the
* specified properties.
*
* @param minTargetSdk the target SDK version at or above which to preserve
* processes, or {@code -1} to ignore the target SDK
* @param maxProcState the process state at or below which to preserve
* processes, or {@code -1} to ignore the process state
*/
private void killAllBackgroundProcessesExcept(int minTargetSdk, int maxProcState) {
if (checkCallingPermission(android.Manifest.permission.KILL_BACKGROUND_PROCESSES)
!= PackageManager.PERMISSION_GRANTED) {
final String msg = "Permission Denial: killAllBackgroundProcessesExcept() from pid="
+ Binder.getCallingPid() + ", uid=" + Binder.getCallingUid()
+ " requires " + android.Manifest.permission.KILL_BACKGROUND_PROCESSES;
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
final long callingId = Binder.clearCallingIdentity();
try {
synchronized (this) {
final ArrayList<ProcessRecord> procs = new ArrayList<>();
final int NP = mProcessNames.getMap().size();
for (int ip = 0; ip < NP; ip++) {
final SparseArray<ProcessRecord> apps = mProcessNames.getMap().valueAt(ip);
final int NA = apps.size();
for (int ia = 0; ia < NA; ia++) {
final ProcessRecord app = apps.valueAt(ia);
if (app.removed) {
procs.add(app);
} else if ((minTargetSdk < 0 || app.info.targetSdkVersion < minTargetSdk)
&& (maxProcState < 0 || app.setProcState > maxProcState)) {
app.removed = true;
procs.add(app);
}
}
}
final int N = procs.size();
for (int i = 0; i < N; i++) {
removeProcessLocked(procs.get(i), false, true, "kill all background except");
}
}
} finally {
Binder.restoreCallingIdentity(callingId);
}
}
@Override
public void forceStopPackage(final String packageName, int userId) {
if (checkCallingPermission(android.Manifest.permission.FORCE_STOP_PACKAGES)
!= PackageManager.PERMISSION_GRANTED) {
String msg = "Permission Denial: forceStopPackage() from pid="
+ Binder.getCallingPid()
+ ", uid=" + Binder.getCallingUid()
+ " requires " + android.Manifest.permission.FORCE_STOP_PACKAGES;
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
final int callingPid = Binder.getCallingPid();
userId = mUserController.handleIncomingUser(callingPid, Binder.getCallingUid(),
userId, true, ALLOW_FULL_ONLY, "forceStopPackage", null);
long callingId = Binder.clearCallingIdentity();
try {
IPackageManager pm = AppGlobals.getPackageManager();
synchronized(this) {
int[] users = userId == UserHandle.USER_ALL
? mUserController.getUsers() : new int[] { userId };
for (int user : users) {
int pkgUid = -1;
try {
pkgUid = pm.getPackageUid(packageName, MATCH_DEBUG_TRIAGED_MISSING,
user);
} catch (RemoteException e) {
}
if (pkgUid == -1) {
Slog.w(TAG, "Invalid packageName: " + packageName);
continue;
}
try {
pm.setPackageStoppedState(packageName, true, user);
} catch (RemoteException e) {
} catch (IllegalArgumentException e) {
Slog.w(TAG, "Failed trying to unstop package "
+ packageName + ": " + e);
}
if (mUserController.isUserRunning(user, 0)) {
forceStopPackageLocked(packageName, pkgUid, "from pid " + callingPid);
finishForceStopPackageLocked(packageName, pkgUid);
}
}
}
} finally {
Binder.restoreCallingIdentity(callingId);
}
}
@Override
public void addPackageDependency(String packageName) {
synchronized (this) {
int callingPid = Binder.getCallingPid();
if (callingPid == myPid()) {
// Yeah, um, no.
return;
}
ProcessRecord proc;
synchronized (mPidsSelfLocked) {
proc = mPidsSelfLocked.get(Binder.getCallingPid());
}
if (proc != null) {
if (proc.pkgDeps == null) {
proc.pkgDeps = new ArraySet<String>(1);
}
proc.pkgDeps.add(packageName);
}
}
}
/*
* The pkg name and app id have to be specified.
*/
@Override
public void killApplication(String pkg, int appId, int userId, String reason) {
if (pkg == null) {
return;
}
// Make sure the uid is valid.
if (appId < 0) {
Slog.w(TAG, "Invalid appid specified for pkg : " + pkg);
return;
}
int callerUid = Binder.getCallingUid();
// Only the system server can kill an application
if (UserHandle.getAppId(callerUid) == SYSTEM_UID) {
// Post an aysnc message to kill the application
Message msg = mHandler.obtainMessage(KILL_APPLICATION_MSG);
msg.arg1 = appId;
msg.arg2 = userId;
Bundle bundle = new Bundle();
bundle.putString("pkg", pkg);
bundle.putString("reason", reason);
msg.obj = bundle;
mHandler.sendMessage(msg);
} else {
throw new SecurityException(callerUid + " cannot kill pkg: " +
pkg);
}
}
@Override
public void closeSystemDialogs(String reason) {
enforceNotIsolatedCaller("closeSystemDialogs");
final int pid = Binder.getCallingPid();
final int uid = Binder.getCallingUid();
final long origId = Binder.clearCallingIdentity();
try {
synchronized (this) {
// Only allow this from foreground processes, so that background
// applications can't abuse it to prevent system UI from being shown.
if (uid >= FIRST_APPLICATION_UID) {
ProcessRecord proc;
synchronized (mPidsSelfLocked) {
proc = mPidsSelfLocked.get(pid);
}
if (proc.curRawAdj > ProcessList.PERCEPTIBLE_APP_ADJ) {
Slog.w(TAG, "Ignoring closeSystemDialogs " + reason
+ " from background process " + proc);
return;
}
}
closeSystemDialogsLocked(reason);
}
} finally {
Binder.restoreCallingIdentity(origId);
}
}
void closeSystemDialogsLocked(String reason) {
Intent intent = new Intent(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY
| Intent.FLAG_RECEIVER_FOREGROUND);
if (reason != null) {
intent.putExtra("reason", reason);
}
mWindowManager.closeSystemDialogs(reason);
mStackSupervisor.closeSystemDialogsLocked();
broadcastIntentLocked(null, null, intent, null, null, 0, null, null, null,
AppOpsManager.OP_NONE, null, false, false,
-1, SYSTEM_UID, UserHandle.USER_ALL);
}
@Override
public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) {
enforceNotIsolatedCaller("getProcessMemoryInfo");
Debug.MemoryInfo[] infos = new Debug.MemoryInfo[pids.length];
for (int i=pids.length-1; i>=0; i--) {
ProcessRecord proc;
int oomAdj;
synchronized (this) {
synchronized (mPidsSelfLocked) {
proc = mPidsSelfLocked.get(pids[i]);
oomAdj = proc != null ? proc.setAdj : 0;
}
}
infos[i] = new Debug.MemoryInfo();
Debug.getMemoryInfo(pids[i], infos[i]);
if (proc != null) {
synchronized (this) {
if (proc.thread != null && proc.setAdj == oomAdj) {
// Record this for posterity if the process has been stable.
proc.baseProcessTracker.addPss(infos[i].getTotalPss(),
infos[i].getTotalUss(), false, proc.pkgList);
}
}
}
}
return infos;
}
@Override
public long[] getProcessPss(int[] pids) {
enforceNotIsolatedCaller("getProcessPss");
long[] pss = new long[pids.length];
for (int i=pids.length-1; i>=0; i--) {
ProcessRecord proc;
int oomAdj;
synchronized (this) {
synchronized (mPidsSelfLocked) {
proc = mPidsSelfLocked.get(pids[i]);
oomAdj = proc != null ? proc.setAdj : 0;
}
}
long[] tmpUss = new long[1];
pss[i] = Debug.getPss(pids[i], tmpUss, null);
if (proc != null) {
synchronized (this) {
if (proc.thread != null && proc.setAdj == oomAdj) {
// Record this for posterity if the process has been stable.
proc.baseProcessTracker.addPss(pss[i], tmpUss[0], false, proc.pkgList);
}
}
}
}
return pss;
}
@Override
public void killApplicationProcess(String processName, int uid) {
if (processName == null) {
return;
}
int callerUid = Binder.getCallingUid();
// Only the system server can kill an application
if (callerUid == SYSTEM_UID) {
synchronized (this) {
ProcessRecord app = getProcessRecordLocked(processName, uid, true);
if (app != null && app.thread != null) {
try {
app.thread.scheduleSuicide();
} catch (RemoteException e) {
// If the other end already died, then our work here is done.
}
} else {
Slog.w(TAG, "Process/uid not found attempting kill of "
+ processName + " / " + uid);
}
}
} else {
throw new SecurityException(callerUid + " cannot kill app process: " +
processName);
}
}
private void forceStopPackageLocked(final String packageName, int uid, String reason) {
forceStopPackageLocked(packageName, UserHandle.getAppId(uid), false,
false, true, false, false, UserHandle.getUserId(uid), reason);
}
private void finishForceStopPackageLocked(final String packageName, int uid) {
Intent intent = new Intent(Intent.ACTION_PACKAGE_RESTARTED,
Uri.fromParts("package", packageName, null));
if (!mProcessesReady) {
intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY
| Intent.FLAG_RECEIVER_FOREGROUND);
}
intent.putExtra(Intent.EXTRA_UID, uid);
intent.putExtra(Intent.EXTRA_USER_HANDLE, UserHandle.getUserId(uid));
broadcastIntentLocked(null, null, intent,
null, null, 0, null, null, null, AppOpsManager.OP_NONE,
null, false, false, MY_PID, SYSTEM_UID, UserHandle.getUserId(uid));
}
private final boolean killPackageProcessesLocked(String packageName, int appId,
int userId, int minOomAdj, boolean callerWillRestart, boolean allowRestart,
boolean doit, boolean evenPersistent, String reason) {
ArrayList<ProcessRecord> procs = new ArrayList<>();
// Remove all processes this package may have touched: all with the
// same UID (except for the system or root user), and all whose name
// matches the package name.
final int NP = mProcessNames.getMap().size();
for (int ip=0; ip<NP; ip++) {
SparseArray<ProcessRecord> apps = mProcessNames.getMap().valueAt(ip);
final int NA = apps.size();
for (int ia=0; ia<NA; ia++) {
ProcessRecord app = apps.valueAt(ia);
if (app.persistent && !evenPersistent) {
// we don't kill persistent processes
continue;
}
if (app.removed) {
if (doit) {
procs.add(app);
}
continue;
}
// Skip process if it doesn't meet our oom adj requirement.
if (app.setAdj < minOomAdj) {
continue;
}
// If no package is specified, we call all processes under the
// give user id.
if (packageName == null) {
if (userId != UserHandle.USER_ALL && app.userId != userId) {
continue;
}
if (appId >= 0 && UserHandle.getAppId(app.uid) != appId) {
continue;
}
// Package has been specified, we want to hit all processes
// that match it. We need to qualify this by the processes
// that are running under the specified app and user ID.
} else {
final boolean isDep = app.pkgDeps != null
&& app.pkgDeps.contains(packageName);
if (!isDep && UserHandle.getAppId(app.uid) != appId) {
continue;
}
if (userId != UserHandle.USER_ALL && app.userId != userId) {
continue;
}
if (!app.pkgList.containsKey(packageName) && !isDep) {
continue;
}
}
// Process has passed all conditions, kill it!
if (!doit) {
return true;
}
app.removed = true;
procs.add(app);
}
}
int N = procs.size();
for (int i=0; i<N; i++) {
removeProcessLocked(procs.get(i), callerWillRestart, allowRestart, reason);
}
updateOomAdjLocked();
return N > 0;
}
private void cleanupDisabledPackageComponentsLocked(
String packageName, int userId, boolean killProcess, String[] changedClasses) {
Set<String> disabledClasses = null;
boolean packageDisabled = false;
IPackageManager pm = AppGlobals.getPackageManager();
if (changedClasses == null) {
// Nothing changed...
return;
}
// Determine enable/disable state of the package and its components.
int enabled = PackageManager.COMPONENT_ENABLED_STATE_DEFAULT;
for (int i = changedClasses.length - 1; i >= 0; i--) {
final String changedClass = changedClasses[i];
if (changedClass.equals(packageName)) {
try {
// Entire package setting changed
enabled = pm.getApplicationEnabledSetting(packageName,
(userId != UserHandle.USER_ALL) ? userId : UserHandle.USER_SYSTEM);
} catch (Exception e) {
// No such package/component; probably racing with uninstall. In any
// event it means we have nothing further to do here.
return;
}
packageDisabled = enabled != PackageManager.COMPONENT_ENABLED_STATE_ENABLED
&& enabled != PackageManager.COMPONENT_ENABLED_STATE_DEFAULT;
if (packageDisabled) {
// Entire package is disabled.
// No need to continue to check component states.
disabledClasses = null;
break;
}
} else {
try {
enabled = pm.getComponentEnabledSetting(
new ComponentName(packageName, changedClass),
(userId != UserHandle.USER_ALL) ? userId : UserHandle.USER_SYSTEM);
} catch (Exception e) {
// As above, probably racing with uninstall.
return;
}
if (enabled != PackageManager.COMPONENT_ENABLED_STATE_ENABLED
&& enabled != PackageManager.COMPONENT_ENABLED_STATE_DEFAULT) {
if (disabledClasses == null) {
disabledClasses = new ArraySet<>(changedClasses.length);
}
disabledClasses.add(changedClass);
}
}
}
if (!packageDisabled && disabledClasses == null) {
// Nothing to do here...
return;
}
// Clean-up disabled activities.
if (mStackSupervisor.finishDisabledPackageActivitiesLocked(
packageName, disabledClasses, true, false, userId) && mBooted) {
mStackSupervisor.resumeFocusedStackTopActivityLocked();
mStackSupervisor.scheduleIdleLocked();
}
// Clean-up disabled tasks
mRecentTasks.cleanupDisabledPackageTasksLocked(packageName, disabledClasses, userId);
// Clean-up disabled services.
mServices.bringDownDisabledPackageServicesLocked(
packageName, disabledClasses, userId, false, killProcess, true);
// Clean-up disabled providers.
ArrayList<ContentProviderRecord> providers = new ArrayList<>();
mProviderMap.collectPackageProvidersLocked(
packageName, disabledClasses, true, false, userId, providers);
for (int i = providers.size() - 1; i >= 0; i--) {
removeDyingProviderLocked(null, providers.get(i), true);
}
// Clean-up disabled broadcast receivers.
for (int i = mBroadcastQueues.length - 1; i >= 0; i--) {
mBroadcastQueues[i].cleanupDisabledPackageReceiversLocked(
packageName, disabledClasses, userId, true);
}
}
final boolean clearBroadcastQueueForUserLocked(int userId) {
boolean didSomething = false;
for (int i = mBroadcastQueues.length - 1; i >= 0; i--) {
didSomething |= mBroadcastQueues[i].cleanupDisabledPackageReceiversLocked(
null, null, userId, true);
}
return didSomething;
}
final boolean forceStopPackageLocked(String packageName, int appId,
boolean callerWillRestart, boolean purgeCache, boolean doit,
boolean evenPersistent, boolean uninstalling, int userId, String reason) {
int i;
if (userId == UserHandle.USER_ALL && packageName == null) {
Slog.w(TAG, "Can't force stop all processes of all users, that is insane!");
}
if (appId < 0 && packageName != null) {
try {
appId = UserHandle.getAppId(AppGlobals.getPackageManager()
.getPackageUid(packageName, MATCH_DEBUG_TRIAGED_MISSING, 0));
} catch (RemoteException e) {
}
}
if (doit) {
if (packageName != null) {
Slog.i(TAG, "Force stopping " + packageName + " appid=" + appId
+ " user=" + userId + ": " + reason);
} else {
Slog.i(TAG, "Force stopping u" + userId + ": " + reason);
}
mAppErrors.resetProcessCrashTimeLocked(packageName == null, appId, userId);
}
boolean didSomething = killPackageProcessesLocked(packageName, appId, userId,
ProcessList.INVALID_ADJ, callerWillRestart, true, doit, evenPersistent,
packageName == null ? ("stop user " + userId) : ("stop " + packageName));
didSomething |= mActivityStarter.clearPendingActivityLaunchesLocked(packageName);
if (mStackSupervisor.finishDisabledPackageActivitiesLocked(
packageName, null, doit, evenPersistent, userId)) {
if (!doit) {
return true;
}
didSomething = true;
}
if (mServices.bringDownDisabledPackageServicesLocked(
packageName, null, userId, evenPersistent, true, doit)) {
if (!doit) {
return true;
}
didSomething = true;
}
if (packageName == null) {
// Remove all sticky broadcasts from this user.
mStickyBroadcasts.remove(userId);
}
ArrayList<ContentProviderRecord> providers = new ArrayList<>();
if (mProviderMap.collectPackageProvidersLocked(packageName, null, doit, evenPersistent,
userId, providers)) {
if (!doit) {
return true;
}
didSomething = true;
}
for (i = providers.size() - 1; i >= 0; i--) {
removeDyingProviderLocked(null, providers.get(i), true);
}
// Remove transient permissions granted from/to this package/user
removeUriPermissionsForPackageLocked(packageName, userId, false);
if (doit) {
for (i = mBroadcastQueues.length - 1; i >= 0; i--) {
didSomething |= mBroadcastQueues[i].cleanupDisabledPackageReceiversLocked(
packageName, null, userId, doit);
}
}
if (packageName == null || uninstalling) {
// Remove pending intents. For now we only do this when force
// stopping users, because we have some problems when doing this
// for packages -- app widgets are not currently cleaned up for
// such packages, so they can be left with bad pending intents.
if (mIntentSenderRecords.size() > 0) {
Iterator<WeakReference<PendingIntentRecord>> it
= mIntentSenderRecords.values().iterator();
while (it.hasNext()) {
WeakReference<PendingIntentRecord> wpir = it.next();
if (wpir == null) {
it.remove();
continue;
}
PendingIntentRecord pir = wpir.get();
if (pir == null) {
it.remove();
continue;
}
if (packageName == null) {
// Stopping user, remove all objects for the user.
if (pir.key.userId != userId) {
// Not the same user, skip it.
continue;
}
} else {
if (UserHandle.getAppId(pir.uid) != appId) {
// Different app id, skip it.
continue;
}
if (userId != UserHandle.USER_ALL && pir.key.userId != userId) {
// Different user, skip it.
continue;
}
if (!pir.key.packageName.equals(packageName)) {
// Different package, skip it.
continue;
}
}
if (!doit) {
return true;
}
didSomething = true;
it.remove();
makeIntentSenderCanceledLocked(pir);
if (pir.key.activity != null && pir.key.activity.pendingResults != null) {
pir.key.activity.pendingResults.remove(pir.ref);
}
}
}
}
if (doit) {
if (purgeCache && packageName != null) {
AttributeCache ac = AttributeCache.instance();
if (ac != null) {
ac.removePackage(packageName);
}
}
if (mBooted) {
mStackSupervisor.resumeFocusedStackTopActivityLocked();
mStackSupervisor.scheduleIdleLocked();
}
}
return didSomething;
}
private final ProcessRecord removeProcessNameLocked(final String name, final int uid) {
return removeProcessNameLocked(name, uid, null);
}
private final ProcessRecord removeProcessNameLocked(final String name, final int uid,
final ProcessRecord expecting) {
ProcessRecord old = mProcessNames.get(name, uid);
// Only actually remove when the currently recorded value matches the
// record that we expected; if it doesn't match then we raced with a
// newly created process and we don't want to destroy the new one.
if ((expecting == null) || (old == expecting)) {
mProcessNames.remove(name, uid);
}
if (old != null && old.uidRecord != null) {
old.uidRecord.numProcs--;
if (old.uidRecord.numProcs == 0) {
// No more processes using this uid, tell clients it is gone.
if (DEBUG_UID_OBSERVERS) Slog.i(TAG_UID_OBSERVERS,
"No more processes in " + old.uidRecord);
enqueueUidChangeLocked(old.uidRecord, -1, UidRecord.CHANGE_GONE);
EventLogTags.writeAmUidStopped(uid);
mActiveUids.remove(uid);
noteUidProcessState(uid, ActivityManager.PROCESS_STATE_NONEXISTENT);
}
old.uidRecord = null;
}
mIsolatedProcesses.remove(uid);
return old;
}
private final void addProcessNameLocked(ProcessRecord proc) {
// We shouldn't already have a process under this name, but just in case we
// need to clean up whatever may be there now.
ProcessRecord old = removeProcessNameLocked(proc.processName, proc.uid);
if (old == proc && proc.persistent) {
// We are re-adding a persistent process. Whatevs! Just leave it there.
Slog.w(TAG, "Re-adding persistent process " + proc);
} else if (old != null) {
Slog.wtf(TAG, "Already have existing proc " + old + " when adding " + proc);
}
UidRecord uidRec = mActiveUids.get(proc.uid);
if (uidRec == null) {
uidRec = new UidRecord(proc.uid);
// This is the first appearance of the uid, report it now!
if (DEBUG_UID_OBSERVERS) Slog.i(TAG_UID_OBSERVERS,
"Creating new process uid: " + uidRec);
if (Arrays.binarySearch(mDeviceIdleTempWhitelist, UserHandle.getAppId(proc.uid)) >= 0
|| mPendingTempWhitelist.indexOfKey(proc.uid) >= 0) {
uidRec.setWhitelist = uidRec.curWhitelist = true;
}
uidRec.updateHasInternetPermission();
mActiveUids.put(proc.uid, uidRec);
EventLogTags.writeAmUidRunning(uidRec.uid);
noteUidProcessState(uidRec.uid, uidRec.curProcState);
}
proc.uidRecord = uidRec;
// Reset render thread tid if it was already set, so new process can set it again.
proc.renderThreadTid = 0;
uidRec.numProcs++;
mProcessNames.put(proc.processName, proc.uid, proc);
if (proc.isolated) {
mIsolatedProcesses.put(proc.uid, proc);
}
}
boolean removeProcessLocked(ProcessRecord app,
boolean callerWillRestart, boolean allowRestart, String reason) {
final String name = app.processName;
final int uid = app.uid;
if (DEBUG_PROCESSES) Slog.d(TAG_PROCESSES,
"Force removing proc " + app.toShortString() + " (" + name + "/" + uid + ")");
ProcessRecord old = mProcessNames.get(name, uid);
if (old != app) {
// This process is no longer active, so nothing to do.
Slog.w(TAG, "Ignoring remove of inactive process: " + app);
return false;
}
removeProcessNameLocked(name, uid);
if (mHeavyWeightProcess == app) {
mHandler.sendMessage(mHandler.obtainMessage(CANCEL_HEAVY_NOTIFICATION_MSG,
mHeavyWeightProcess.userId, 0));
mHeavyWeightProcess = null;
}
boolean needRestart = false;
if (app.pid > 0 && app.pid != MY_PID) {
int pid = app.pid;
synchronized (mPidsSelfLocked) {
mPidsSelfLocked.remove(pid);
mHandler.removeMessages(PROC_START_TIMEOUT_MSG, app);
}
mBatteryStatsService.noteProcessFinish(app.processName, app.info.uid);
boolean willRestart = false;
if (app.persistent && !app.isolated) {
if (!callerWillRestart) {
willRestart = true;
} else {
needRestart = true;
}
}
app.kill(reason, true);
if (app.isolated) {
mBatteryStatsService.removeIsolatedUid(app.uid, app.info.uid);
getPackageManagerInternalLocked().removeIsolatedUid(app.uid);
}
handleAppDiedLocked(app, willRestart, allowRestart);
if (willRestart) {
removeLruProcessLocked(app);
addAppLocked(app.info, null, false, null /* ABI override */);
}
} else {
mRemovedProcesses.add(app);
}
return needRestart;
}
private final void processContentProviderPublishTimedOutLocked(ProcessRecord app) {
cleanupAppInLaunchingProvidersLocked(app, true);
removeProcessLocked(app, false, true, "timeout publishing content providers");
}
private final void processStartTimedOutLocked(ProcessRecord app) {
final int pid = app.pid;
boolean gone = false;
synchronized (mPidsSelfLocked) {
ProcessRecord knownApp = mPidsSelfLocked.get(pid);
if (knownApp != null && knownApp.thread == null) {
mPidsSelfLocked.remove(pid);
gone = true;
}
}
if (gone) {
Slog.w(TAG, "Process " + app + " failed to attach");
EventLog.writeEvent(EventLogTags.AM_PROCESS_START_TIMEOUT, app.userId,
pid, app.uid, app.processName);
removeProcessNameLocked(app.processName, app.uid);
if (mHeavyWeightProcess == app) {
mHandler.sendMessage(mHandler.obtainMessage(CANCEL_HEAVY_NOTIFICATION_MSG,
mHeavyWeightProcess.userId, 0));
mHeavyWeightProcess = null;
}
mBatteryStatsService.noteProcessFinish(app.processName, app.info.uid);
// Take care of any launching providers waiting for this process.
cleanupAppInLaunchingProvidersLocked(app, true);
// Take care of any services that are waiting for the process.
mServices.processStartTimedOutLocked(app);
app.kill("start timeout", true);
if (app.isolated) {
mBatteryStatsService.removeIsolatedUid(app.uid, app.info.uid);
}
removeLruProcessLocked(app);
if (mBackupTarget != null && mBackupTarget.app.pid == pid) {
Slog.w(TAG, "Unattached app died before backup, skipping");
mHandler.post(new Runnable() {
@Override
public void run(){
try {
IBackupManager bm = IBackupManager.Stub.asInterface(
ServiceManager.getService(Context.BACKUP_SERVICE));
bm.agentDisconnected(app.info.packageName);
} catch (RemoteException e) {
// Can't happen; the backup manager is local
}
}
});
}
if (isPendingBroadcastProcessLocked(pid)) {
Slog.w(TAG, "Unattached app died before broadcast acknowledged, skipping");
skipPendingBroadcastLocked(pid);
}
} else {
Slog.w(TAG, "Spurious process start timeout - pid not known for " + app);
}
}
private final boolean attachApplicationLocked(IApplicationThread thread,
int pid) {
// Find the application record that is being attached... either via
// the pid if we are running in multiple processes, or just pull the
// next app record if we are emulating process with anonymous threads.
ProcessRecord app;
long startTime = SystemClock.uptimeMillis();
if (pid != MY_PID && pid >= 0) {
synchronized (mPidsSelfLocked) {
app = mPidsSelfLocked.get(pid);
}
} else {
app = null;
}
if (app == null) {
Slog.w(TAG, "No pending application record for pid " + pid
+ " (IApplicationThread " + thread + "); dropping process");
EventLog.writeEvent(EventLogTags.AM_DROP_PROCESS, pid);
if (pid > 0 && pid != MY_PID) {
killProcessQuiet(pid);
//TODO: killProcessGroup(app.info.uid, pid);
} else {
try {
thread.scheduleExit();
} catch (Exception e) {
// Ignore exceptions.
}
}
return false;
}
// If this application record is still attached to a previous
// process, clean it up now.
if (app.thread != null) {
handleAppDiedLocked(app, true, true);
}
// Tell the process all about itself.
if (DEBUG_ALL) Slog.v(
TAG, "Binding process pid " + pid + " to record " + app);
final String processName = app.processName;
try {
AppDeathRecipient adr = new AppDeathRecipient(
app, pid, thread);
thread.asBinder().linkToDeath(adr, 0);
app.deathRecipient = adr;
} catch (RemoteException e) {
app.resetPackageList(mProcessStats);
startProcessLocked(app, "link fail", processName);
return false;
}
EventLog.writeEvent(EventLogTags.AM_PROC_BOUND, app.userId, app.pid, app.processName);
app.makeActive(thread, mProcessStats);
app.curAdj = app.setAdj = app.verifiedAdj = ProcessList.INVALID_ADJ;
app.curSchedGroup = app.setSchedGroup = ProcessList.SCHED_GROUP_DEFAULT;
app.forcingToImportant = null;
updateProcessForegroundLocked(app, false, false);
app.hasShownUi = false;
app.debugging = false;
app.cached = false;
app.killedByAm = false;
app.killed = false;
// We carefully use the same state that PackageManager uses for
// filtering, since we use this flag to decide if we need to install
// providers when user is unlocked later
app.unlocked = StorageManager.isUserKeyUnlocked(app.userId);
mHandler.removeMessages(PROC_START_TIMEOUT_MSG, app);
boolean normalMode = mProcessesReady || isAllowedWhileBooting(app.info);
List<ProviderInfo> providers = normalMode ? generateApplicationProvidersLocked(app) : null;
if (providers != null && checkAppInLaunchingProvidersLocked(app)) {
Message msg = mHandler.obtainMessage(CONTENT_PROVIDER_PUBLISH_TIMEOUT_MSG);
msg.obj = app;
mHandler.sendMessageDelayed(msg, CONTENT_PROVIDER_PUBLISH_TIMEOUT);
}
checkTime(startTime, "attachApplicationLocked: before bindApplication");
if (!normalMode) {
Slog.i(TAG, "Launching preboot mode app: " + app);
}
if (DEBUG_ALL) Slog.v(
TAG, "New app record " + app
+ " thread=" + thread.asBinder() + " pid=" + pid);
try {
int testMode = ApplicationThreadConstants.DEBUG_OFF;
if (mDebugApp != null && mDebugApp.equals(processName)) {
testMode = mWaitForDebugger
? ApplicationThreadConstants.DEBUG_WAIT
: ApplicationThreadConstants.DEBUG_ON;
app.debugging = true;
if (mDebugTransient) {
mDebugApp = mOrigDebugApp;
mWaitForDebugger = mOrigWaitForDebugger;
}
}
ProfilerInfo profilerInfo = null;
String agent = null;
if (mProfileApp != null && mProfileApp.equals(processName)) {
mProfileProc = app;
profilerInfo = (mProfilerInfo != null && mProfilerInfo.profileFile != null) ?
new ProfilerInfo(mProfilerInfo) : null;
agent = mProfilerInfo != null ? mProfilerInfo.agent : null;
} else if (app.instr != null && app.instr.mProfileFile != null) {
profilerInfo = new ProfilerInfo(app.instr.mProfileFile, null, 0, false, false,
null);
}
boolean enableTrackAllocation = false;
if (mTrackAllocationApp != null && mTrackAllocationApp.equals(processName)) {
enableTrackAllocation = true;
mTrackAllocationApp = null;
}
// If the app is being launched for restore or full backup, set it up specially
boolean isRestrictedBackupMode = false;
if (mBackupTarget != null && mBackupAppName.equals(processName)) {
isRestrictedBackupMode = mBackupTarget.appInfo.uid >= FIRST_APPLICATION_UID
&& ((mBackupTarget.backupMode == BackupRecord.RESTORE)
|| (mBackupTarget.backupMode == BackupRecord.RESTORE_FULL)
|| (mBackupTarget.backupMode == BackupRecord.BACKUP_FULL));
}
if (app.instr != null) {
notifyPackageUse(app.instr.mClass.getPackageName(),
PackageManager.NOTIFY_PACKAGE_USE_INSTRUMENTATION);
}
if (DEBUG_CONFIGURATION) Slog.v(TAG_CONFIGURATION, "Binding proc "
+ processName + " with config " + getGlobalConfiguration());
ApplicationInfo appInfo = app.instr != null ? app.instr.mTargetInfo : app.info;
app.compat = compatibilityInfoForPackageLocked(appInfo);
if (profilerInfo != null && profilerInfo.profileFd != null) {
profilerInfo.profileFd = profilerInfo.profileFd.dup();
}
// We deprecated Build.SERIAL and it is not accessible to
// apps that target the v2 security sandbox. Since access to
// the serial is now behind a permission we push down the value.
String buildSerial = appInfo.targetSandboxVersion < 2
? sTheRealBuildSerial : Build.UNKNOWN;
// Check if this is a secondary process that should be incorporated into some
// currently active instrumentation. (Note we do this AFTER all of the profiling
// stuff above because profiling can currently happen only in the primary
// instrumentation process.)
if (mActiveInstrumentation.size() > 0 && app.instr == null) {
for (int i = mActiveInstrumentation.size() - 1; i >= 0 && app.instr == null; i--) {
ActiveInstrumentation aInstr = mActiveInstrumentation.get(i);
if (!aInstr.mFinished && aInstr.mTargetInfo.uid == app.uid) {
if (aInstr.mTargetProcesses.length == 0) {
// This is the wildcard mode, where every process brought up for
// the target instrumentation should be included.
if (aInstr.mTargetInfo.packageName.equals(app.info.packageName)) {
app.instr = aInstr;
aInstr.mRunningProcesses.add(app);
}
} else {
for (String proc : aInstr.mTargetProcesses) {
if (proc.equals(app.processName)) {
app.instr = aInstr;
aInstr.mRunningProcesses.add(app);
break;
}
}
}
}
}
}
// If we were asked to attach an agent on startup, do so now, before we're binding
// application code.
if (agent != null) {
thread.attachAgent(agent);
}
checkTime(startTime, "attachApplicationLocked: immediately before bindApplication");
mStackSupervisor.mActivityMetricsLogger.notifyBindApplication(app);
if (app.isolatedEntryPoint != null) {
// This is an isolated process which should just call an entry point instead of
// being bound to an application.
thread.runIsolatedEntryPoint(app.isolatedEntryPoint, app.isolatedEntryPointArgs);
} else if (app.instr != null) {
thread.bindApplication(processName, appInfo, providers,
app.instr.mClass,
profilerInfo, app.instr.mArguments,
app.instr.mWatcher,
app.instr.mUiAutomationConnection, testMode,
mBinderTransactionTrackingEnabled, enableTrackAllocation,
isRestrictedBackupMode || !normalMode, app.persistent,
new Configuration(getGlobalConfiguration()), app.compat,
getCommonServicesLocked(app.isolated),
mCoreSettingsObserver.getCoreSettingsLocked(),
buildSerial);
} else {
thread.bindApplication(processName, appInfo, providers, null, profilerInfo,
null, null, null, testMode,
mBinderTransactionTrackingEnabled, enableTrackAllocation,
isRestrictedBackupMode || !normalMode, app.persistent,
new Configuration(getGlobalConfiguration()), app.compat,
getCommonServicesLocked(app.isolated),
mCoreSettingsObserver.getCoreSettingsLocked(),
buildSerial);
}
checkTime(startTime, "attachApplicationLocked: immediately after bindApplication");
updateLruProcessLocked(app, false, null);
checkTime(startTime, "attachApplicationLocked: after updateLruProcessLocked");
app.lastRequestedGc = app.lastLowMemory = SystemClock.uptimeMillis();
} catch (Exception e) {
// todo: Yikes! What should we do? For now we will try to
// start another process, but that could easily get us in
// an infinite loop of restarting processes...
Slog.wtf(TAG, "Exception thrown during bind of " + app, e);
app.resetPackageList(mProcessStats);
app.unlinkDeathRecipient();
startProcessLocked(app, "bind fail", processName);
return false;
}
// Remove this record from the list of starting applications.
mPersistentStartingProcesses.remove(app);
if (DEBUG_PROCESSES && mProcessesOnHold.contains(app)) Slog.v(TAG_PROCESSES,
"Attach application locked removing on hold: " + app);
mProcessesOnHold.remove(app);
boolean badApp = false;
boolean didSomething = false;
// See if the top visible activity is waiting to run in this process...
if (normalMode) {
try {
if (mStackSupervisor.attachApplicationLocked(app)) {
didSomething = true;
}
} catch (Exception e) {
Slog.wtf(TAG, "Exception thrown launching activities in " + app, e);
badApp = true;
}
}
// Find any services that should be running in this process...
if (!badApp) {
try {
didSomething |= mServices.attachApplicationLocked(app, processName);
checkTime(startTime, "attachApplicationLocked: after mServices.attachApplicationLocked");
} catch (Exception e) {
Slog.wtf(TAG, "Exception thrown starting services in " + app, e);
badApp = true;
}
}
// Check if a next-broadcast receiver is in this process...
if (!badApp && isPendingBroadcastProcessLocked(pid)) {
try {
didSomething |= sendPendingBroadcastsLocked(app);
checkTime(startTime, "attachApplicationLocked: after sendPendingBroadcastsLocked");
} catch (Exception e) {
// If the app died trying to launch the receiver we declare it 'bad'
Slog.wtf(TAG, "Exception thrown dispatching broadcasts in " + app, e);
badApp = true;
}
}
// Check whether the next backup agent is in this process...
if (!badApp && mBackupTarget != null && mBackupTarget.app == app) {
if (DEBUG_BACKUP) Slog.v(TAG_BACKUP,
"New app is backup target, launching agent for " + app);
notifyPackageUse(mBackupTarget.appInfo.packageName,
PackageManager.NOTIFY_PACKAGE_USE_BACKUP);
try {
thread.scheduleCreateBackupAgent(mBackupTarget.appInfo,
compatibilityInfoForPackageLocked(mBackupTarget.appInfo),
mBackupTarget.backupMode);
} catch (Exception e) {
Slog.wtf(TAG, "Exception thrown creating backup agent in " + app, e);
badApp = true;
}
}
if (badApp) {
app.kill("error during init", true);
handleAppDiedLocked(app, false, true);
return false;
}
if (!didSomething) {
updateOomAdjLocked();
checkTime(startTime, "attachApplicationLocked: after updateOomAdjLocked");
}
return true;
}
@Override
public final void attachApplication(IApplicationThread thread) {
synchronized (this) {
int callingPid = Binder.getCallingPid();
final long origId = Binder.clearCallingIdentity();
attachApplicationLocked(thread, callingPid);
Binder.restoreCallingIdentity(origId);
}
}
@Override
public final void activityIdle(IBinder token, Configuration config, boolean stopProfiling) {
final long origId = Binder.clearCallingIdentity();
synchronized (this) {
ActivityStack stack = ActivityRecord.getStackLocked(token);
if (stack != null) {
ActivityRecord r =
mStackSupervisor.activityIdleInternalLocked(token, false /* fromTimeout */,
false /* processPausingActivities */, config);
if (stopProfiling) {
if ((mProfileProc == r.app) && mProfilerInfo != null) {
clearProfilerLocked();
}
}
}
}
Binder.restoreCallingIdentity(origId);
}
void postFinishBooting(boolean finishBooting, boolean enableScreen) {
mHandler.sendMessage(mHandler.obtainMessage(FINISH_BOOTING_MSG,
finishBooting ? 1 : 0, enableScreen ? 1 : 0));
}
void enableScreenAfterBoot() {
EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_ENABLE_SCREEN,
SystemClock.uptimeMillis());
mWindowManager.enableScreenAfterBoot();
synchronized (this) {
updateEventDispatchingLocked();
}
}
@Override
public void showBootMessage(final CharSequence msg, final boolean always) {
if (Binder.getCallingUid() != myUid()) {
throw new SecurityException();
}
mWindowManager.showBootMessage(msg, always);
}
@Override
public void keyguardGoingAway(int flags) {
enforceNotIsolatedCaller("keyguardGoingAway");
final long token = Binder.clearCallingIdentity();
try {
synchronized (this) {
mKeyguardController.keyguardGoingAway(flags);
}
} finally {
Binder.restoreCallingIdentity(token);
}
}
/**
* @return whther the keyguard is currently locked.
*/
boolean isKeyguardLocked() {
return mKeyguardController.isKeyguardLocked();
}
final void finishBooting() {
synchronized (this) {
if (!mBootAnimationComplete) {
mCallFinishBooting = true;
return;
}
mCallFinishBooting = false;
}
ArraySet<String> completedIsas = new ArraySet<String>();
for (String abi : Build.SUPPORTED_ABIS) {
zygoteProcess.establishZygoteConnectionForAbi(abi);
final String instructionSet = VMRuntime.getInstructionSet(abi);
if (!completedIsas.contains(instructionSet)) {
try {
mInstaller.markBootComplete(VMRuntime.getInstructionSet(abi));
} catch (InstallerException e) {
Slog.w(TAG, "Unable to mark boot complete for abi: " + abi + " (" +
e.getMessage() +")");
}
completedIsas.add(instructionSet);
}
}
IntentFilter pkgFilter = new IntentFilter();
pkgFilter.addAction(Intent.ACTION_QUERY_PACKAGE_RESTART);
pkgFilter.addDataScheme("package");
mContext.registerReceiver(new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String[] pkgs = intent.getStringArrayExtra(Intent.EXTRA_PACKAGES);
if (pkgs != null) {
for (String pkg : pkgs) {
synchronized (ActivityManagerService.this) {
if (forceStopPackageLocked(pkg, -1, false, false, false, false, false,
0, "query restart")) {
setResultCode(Activity.RESULT_OK);
return;
}
}
}
}
}
}, pkgFilter);
IntentFilter dumpheapFilter = new IntentFilter();
dumpheapFilter.addAction(DumpHeapActivity.ACTION_DELETE_DUMPHEAP);
mContext.registerReceiver(new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getBooleanExtra(DumpHeapActivity.EXTRA_DELAY_DELETE, false)) {
mHandler.sendEmptyMessageDelayed(POST_DUMP_HEAP_NOTIFICATION_MSG, 5*60*1000);
} else {
mHandler.sendEmptyMessage(POST_DUMP_HEAP_NOTIFICATION_MSG);
}
}
}, dumpheapFilter);
// Let system services know.
mSystemServiceManager.startBootPhase(SystemService.PHASE_BOOT_COMPLETED);
synchronized (this) {
// Ensure that any processes we had put on hold are now started
// up.
final int NP = mProcessesOnHold.size();
if (NP > 0) {
ArrayList<ProcessRecord> procs =
new ArrayList<ProcessRecord>(mProcessesOnHold);
for (int ip=0; ip<NP; ip++) {
if (DEBUG_PROCESSES) Slog.v(TAG_PROCESSES, "Starting process on hold: "
+ procs.get(ip));
startProcessLocked(procs.get(ip), "on-hold", null);
}
}
if (mFactoryTest == FactoryTest.FACTORY_TEST_LOW_LEVEL) {
return;
}
// Start looking for apps that are abusing wake locks.
Message nmsg = mHandler.obtainMessage(CHECK_EXCESSIVE_POWER_USE_MSG);
mHandler.sendMessageDelayed(nmsg, mConstants.POWER_CHECK_INTERVAL);
// Tell anyone interested that we are done booting!
SystemProperties.set("sys.boot_completed", "1");
// And trigger dev.bootcomplete if we are not showing encryption progress
if (!"trigger_restart_min_framework".equals(SystemProperties.get("vold.decrypt"))
|| "".equals(SystemProperties.get("vold.encrypt_progress"))) {
SystemProperties.set("dev.bootcomplete", "1");
}
mUserController.sendBootCompleted(
new IIntentReceiver.Stub() {
@Override
public void performReceive(Intent intent, int resultCode,
String data, Bundle extras, boolean ordered,
boolean sticky, int sendingUser) {
synchronized (ActivityManagerService.this) {
requestPssAllProcsLocked(SystemClock.uptimeMillis(), true, false);
}
}
});
mUserController.scheduleStartProfiles();
}
}
@Override
public void bootAnimationComplete() {
final boolean callFinishBooting;
synchronized (this) {
callFinishBooting = mCallFinishBooting;
mBootAnimationComplete = true;
}
if (callFinishBooting) {
Trace.traceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER, "FinishBooting");
finishBooting();
Trace.traceEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER);
}
}
final void ensureBootCompleted() {
boolean booting;
boolean enableScreen;
synchronized (this) {
booting = mBooting;
mBooting = false;
enableScreen = !mBooted;
mBooted = true;
}
if (booting) {
Trace.traceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER, "FinishBooting");
finishBooting();
Trace.traceEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER);
}
if (enableScreen) {
enableScreenAfterBoot();
}
}
@Override
public final void activityResumed(IBinder token) {
final long origId = Binder.clearCallingIdentity();
synchronized(this) {
ActivityRecord.activityResumedLocked(token);
mWindowManager.notifyAppResumedFinished(token);
}
Binder.restoreCallingIdentity(origId);
}
@Override
public final void activityPaused(IBinder token) {
final long origId = Binder.clearCallingIdentity();
synchronized(this) {
ActivityStack stack = ActivityRecord.getStackLocked(token);
if (stack != null) {
stack.activityPausedLocked(token, false);
}
}
Binder.restoreCallingIdentity(origId);
}
@Override
public final void activityStopped(IBinder token, Bundle icicle,
PersistableBundle persistentState, CharSequence description) {
if (DEBUG_ALL) Slog.v(TAG, "Activity stopped: token=" + token);
// Refuse possible leaked file descriptors
if (icicle != null && icicle.hasFileDescriptors()) {
throw new IllegalArgumentException("File descriptors passed in Bundle");
}
final long origId = Binder.clearCallingIdentity();
synchronized (this) {
final ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r != null) {
r.activityStoppedLocked(icicle, persistentState, description);
}
}
trimApplications();
Binder.restoreCallingIdentity(origId);
}
@Override
public final void activityDestroyed(IBinder token) {
if (DEBUG_SWITCH) Slog.v(TAG_SWITCH, "ACTIVITY DESTROYED: " + token);
synchronized (this) {
ActivityStack stack = ActivityRecord.getStackLocked(token);
if (stack != null) {
stack.activityDestroyedLocked(token, "activityDestroyed");
}
}
}
@Override
public final void activityRelaunched(IBinder token) {
final long origId = Binder.clearCallingIdentity();
synchronized (this) {
mStackSupervisor.activityRelaunchedLocked(token);
}
Binder.restoreCallingIdentity(origId);
}
@Override
public void reportSizeConfigurations(IBinder token, int[] horizontalSizeConfiguration,
int[] verticalSizeConfigurations, int[] smallestSizeConfigurations) {
if (DEBUG_CONFIGURATION) Slog.v(TAG, "Report configuration: " + token + " "
+ horizontalSizeConfiguration + " " + verticalSizeConfigurations);
synchronized (this) {
ActivityRecord record = ActivityRecord.isInStackLocked(token);
if (record == null) {
throw new IllegalArgumentException("reportSizeConfigurations: ActivityRecord not "
+ "found for: " + token);
}
record.setSizeConfigurations(horizontalSizeConfiguration,
verticalSizeConfigurations, smallestSizeConfigurations);
}
}
@Override
public final void notifyLaunchTaskBehindComplete(IBinder token) {
mStackSupervisor.scheduleLaunchTaskBehindComplete(token);
}
@Override
public final void notifyEnterAnimationComplete(IBinder token) {
mHandler.sendMessage(mHandler.obtainMessage(ENTER_ANIMATION_COMPLETE_MSG, token));
}
@Override
public String getCallingPackage(IBinder token) {
synchronized (this) {
ActivityRecord r = getCallingRecordLocked(token);
return r != null ? r.info.packageName : null;
}
}
@Override
public ComponentName getCallingActivity(IBinder token) {
synchronized (this) {
ActivityRecord r = getCallingRecordLocked(token);
return r != null ? r.intent.getComponent() : null;
}
}
private ActivityRecord getCallingRecordLocked(IBinder token) {
ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r == null) {
return null;
}
return r.resultTo;
}
@Override
public ComponentName getActivityClassForToken(IBinder token) {
synchronized(this) {
ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r == null) {
return null;
}
return r.intent.getComponent();
}
}
@Override
public String getPackageForToken(IBinder token) {
synchronized(this) {
ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r == null) {
return null;
}
return r.packageName;
}
}
@Override
public boolean isRootVoiceInteraction(IBinder token) {
synchronized(this) {
ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r == null) {
return false;
}
return r.rootVoiceInteraction;
}
}
@Override
public IIntentSender getIntentSender(int type,
String packageName, IBinder token, String resultWho,
int requestCode, Intent[] intents, String[] resolvedTypes,
int flags, Bundle bOptions, int userId) {
enforceNotIsolatedCaller("getIntentSender");
// Refuse possible leaked file descriptors
if (intents != null) {
if (intents.length < 1) {
throw new IllegalArgumentException("Intents array length must be >= 1");
}
for (int i=0; i<intents.length; i++) {
Intent intent = intents[i];
if (intent != null) {
if (intent.hasFileDescriptors()) {
throw new IllegalArgumentException("File descriptors passed in Intent");
}
if (type == ActivityManager.INTENT_SENDER_BROADCAST &&
(intent.getFlags()&Intent.FLAG_RECEIVER_BOOT_UPGRADE) != 0) {
throw new IllegalArgumentException(
"Can't use FLAG_RECEIVER_BOOT_UPGRADE here");
}
intents[i] = new Intent(intent);
}
}
if (resolvedTypes != null && resolvedTypes.length != intents.length) {
throw new IllegalArgumentException(
"Intent array length does not match resolvedTypes length");
}
}
if (bOptions != null) {
if (bOptions.hasFileDescriptors()) {
throw new IllegalArgumentException("File descriptors passed in options");
}
}
synchronized(this) {
int callingUid = Binder.getCallingUid();
int origUserId = userId;
userId = mUserController.handleIncomingUser(Binder.getCallingPid(), callingUid, userId,
type == ActivityManager.INTENT_SENDER_BROADCAST,
ALLOW_NON_FULL, "getIntentSender", null);
if (origUserId == UserHandle.USER_CURRENT) {
// We don't want to evaluate this until the pending intent is
// actually executed. However, we do want to always do the
// security checking for it above.
userId = UserHandle.USER_CURRENT;
}
try {
if (callingUid != 0 && callingUid != SYSTEM_UID) {
final int uid = AppGlobals.getPackageManager().getPackageUid(packageName,
MATCH_DEBUG_TRIAGED_MISSING, UserHandle.getUserId(callingUid));
if (!UserHandle.isSameApp(callingUid, uid)) {
String msg = "Permission Denial: getIntentSender() from pid="
+ Binder.getCallingPid()
+ ", uid=" + Binder.getCallingUid()
+ ", (need uid=" + uid + ")"
+ " is not allowed to send as package " + packageName;
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
}
return getIntentSenderLocked(type, packageName, callingUid, userId,
token, resultWho, requestCode, intents, resolvedTypes, flags, bOptions);
} catch (RemoteException e) {
throw new SecurityException(e);
}
}
}
IIntentSender getIntentSenderLocked(int type, String packageName,
int callingUid, int userId, IBinder token, String resultWho,
int requestCode, Intent[] intents, String[] resolvedTypes, int flags,
Bundle bOptions) {
if (DEBUG_MU) Slog.v(TAG_MU, "getIntentSenderLocked(): uid=" + callingUid);
ActivityRecord activity = null;
if (type == ActivityManager.INTENT_SENDER_ACTIVITY_RESULT) {
activity = ActivityRecord.isInStackLocked(token);
if (activity == null) {
Slog.w(TAG, "Failed createPendingResult: activity " + token + " not in any stack");
return null;
}
if (activity.finishing) {
Slog.w(TAG, "Failed createPendingResult: activity " + activity + " is finishing");
return null;
}
}
// We're going to be splicing together extras before sending, so we're
// okay poking into any contained extras.
if (intents != null) {
for (int i = 0; i < intents.length; i++) {
intents[i].setDefusable(true);
}
}
Bundle.setDefusable(bOptions, true);
final boolean noCreate = (flags&PendingIntent.FLAG_NO_CREATE) != 0;
final boolean cancelCurrent = (flags&PendingIntent.FLAG_CANCEL_CURRENT) != 0;
final boolean updateCurrent = (flags&PendingIntent.FLAG_UPDATE_CURRENT) != 0;
flags &= ~(PendingIntent.FLAG_NO_CREATE|PendingIntent.FLAG_CANCEL_CURRENT
|PendingIntent.FLAG_UPDATE_CURRENT);
PendingIntentRecord.Key key = new PendingIntentRecord.Key(
type, packageName, activity, resultWho,
requestCode, intents, resolvedTypes, flags, bOptions, userId);
WeakReference<PendingIntentRecord> ref;
ref = mIntentSenderRecords.get(key);
PendingIntentRecord rec = ref != null ? ref.get() : null;
if (rec != null) {
if (!cancelCurrent) {
if (updateCurrent) {
if (rec.key.requestIntent != null) {
rec.key.requestIntent.replaceExtras(intents != null ?
intents[intents.length - 1] : null);
}
if (intents != null) {
intents[intents.length-1] = rec.key.requestIntent;
rec.key.allIntents = intents;
rec.key.allResolvedTypes = resolvedTypes;
} else {
rec.key.allIntents = null;
rec.key.allResolvedTypes = null;
}
}
return rec;
}
makeIntentSenderCanceledLocked(rec);
mIntentSenderRecords.remove(key);
}
if (noCreate) {
return rec;
}
rec = new PendingIntentRecord(this, key, callingUid);
mIntentSenderRecords.put(key, rec.ref);
if (type == ActivityManager.INTENT_SENDER_ACTIVITY_RESULT) {
if (activity.pendingResults == null) {
activity.pendingResults
= new HashSet<WeakReference<PendingIntentRecord>>();
}
activity.pendingResults.add(rec.ref);
}
return rec;
}
@Override
public int sendIntentSender(IIntentSender target, IBinder whitelistToken, int code,
Intent intent, String resolvedType,
IIntentReceiver finishedReceiver, String requiredPermission, Bundle options) {
if (target instanceof PendingIntentRecord) {
return ((PendingIntentRecord)target).sendWithResult(code, intent, resolvedType,
whitelistToken, finishedReceiver, requiredPermission, options);
} else {
if (intent == null) {
// Weird case: someone has given us their own custom IIntentSender, and now
// they have someone else trying to send to it but of course this isn't
// really a PendingIntent, so there is no base Intent, and the caller isn't
// supplying an Intent... but we never want to dispatch a null Intent to
// a receiver, so um... let's make something up.
Slog.wtf(TAG, "Can't use null intent with direct IIntentSender call");
intent = new Intent(Intent.ACTION_MAIN);
}
try {
target.send(code, intent, resolvedType, whitelistToken, null,
requiredPermission, options);
} catch (RemoteException e) {
}
// Platform code can rely on getting a result back when the send is done, but if
// this intent sender is from outside of the system we can't rely on it doing that.
// So instead we don't give it the result receiver, and instead just directly
// report the finish immediately.
if (finishedReceiver != null) {
try {
finishedReceiver.performReceive(intent, 0,
null, null, false, false, UserHandle.getCallingUserId());
} catch (RemoteException e) {
}
}
return 0;
}
}
@Override
public void cancelIntentSender(IIntentSender sender) {
if (!(sender instanceof PendingIntentRecord)) {
return;
}
synchronized(this) {
PendingIntentRecord rec = (PendingIntentRecord)sender;
try {
final int uid = AppGlobals.getPackageManager().getPackageUid(rec.key.packageName,
MATCH_DEBUG_TRIAGED_MISSING, UserHandle.getCallingUserId());
if (!UserHandle.isSameApp(uid, Binder.getCallingUid())) {
String msg = "Permission Denial: cancelIntentSender() from pid="
+ Binder.getCallingPid()
+ ", uid=" + Binder.getCallingUid()
+ " is not allowed to cancel package "
+ rec.key.packageName;
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
} catch (RemoteException e) {
throw new SecurityException(e);
}
cancelIntentSenderLocked(rec, true);
}
}
void cancelIntentSenderLocked(PendingIntentRecord rec, boolean cleanActivity) {
makeIntentSenderCanceledLocked(rec);
mIntentSenderRecords.remove(rec.key);
if (cleanActivity && rec.key.activity != null) {
rec.key.activity.pendingResults.remove(rec.ref);
}
}
void makeIntentSenderCanceledLocked(PendingIntentRecord rec) {
rec.canceled = true;
RemoteCallbackList<IResultReceiver> callbacks = rec.detachCancelListenersLocked();
if (callbacks != null) {
mHandler.obtainMessage(DISPATCH_PENDING_INTENT_CANCEL_MSG, callbacks).sendToTarget();
}
}
@Override
public String getPackageForIntentSender(IIntentSender pendingResult) {
if (!(pendingResult instanceof PendingIntentRecord)) {
return null;
}
try {
PendingIntentRecord res = (PendingIntentRecord)pendingResult;
return res.key.packageName;
} catch (ClassCastException e) {
}
return null;
}
@Override
public void registerIntentSenderCancelListener(IIntentSender sender, IResultReceiver receiver) {
if (!(sender instanceof PendingIntentRecord)) {
return;
}
synchronized(this) {
((PendingIntentRecord)sender).registerCancelListenerLocked(receiver);
}
}
@Override
public void unregisterIntentSenderCancelListener(IIntentSender sender,
IResultReceiver receiver) {
if (!(sender instanceof PendingIntentRecord)) {
return;
}
synchronized(this) {
((PendingIntentRecord)sender).unregisterCancelListenerLocked(receiver);
}
}
@Override
public int getUidForIntentSender(IIntentSender sender) {
if (sender instanceof PendingIntentRecord) {
try {
PendingIntentRecord res = (PendingIntentRecord)sender;
return res.uid;
} catch (ClassCastException e) {
}
}
return -1;
}
@Override
public boolean isIntentSenderTargetedToPackage(IIntentSender pendingResult) {
if (!(pendingResult instanceof PendingIntentRecord)) {
return false;
}
try {
PendingIntentRecord res = (PendingIntentRecord)pendingResult;
if (res.key.allIntents == null) {
return false;
}
for (int i=0; i<res.key.allIntents.length; i++) {
Intent intent = res.key.allIntents[i];
if (intent.getPackage() != null && intent.getComponent() != null) {
return false;
}
}
return true;
} catch (ClassCastException e) {
}
return false;
}
@Override
public boolean isIntentSenderAnActivity(IIntentSender pendingResult) {
if (!(pendingResult instanceof PendingIntentRecord)) {
return false;
}
try {
PendingIntentRecord res = (PendingIntentRecord)pendingResult;
if (res.key.type == ActivityManager.INTENT_SENDER_ACTIVITY) {
return true;
}
return false;
} catch (ClassCastException e) {
}
return false;
}
@Override
public boolean isIntentSenderAForegroundService(IIntentSender pendingResult) {
if (pendingResult instanceof PendingIntentRecord) {
final PendingIntentRecord res = (PendingIntentRecord) pendingResult;
return res.key.type == ActivityManager.INTENT_SENDER_FOREGROUND_SERVICE;
}
return false;
}
@Override
public Intent getIntentForIntentSender(IIntentSender pendingResult) {
enforceCallingPermission(Manifest.permission.GET_INTENT_SENDER_INTENT,
"getIntentForIntentSender()");
if (!(pendingResult instanceof PendingIntentRecord)) {
return null;
}
try {
PendingIntentRecord res = (PendingIntentRecord)pendingResult;
return res.key.requestIntent != null ? new Intent(res.key.requestIntent) : null;
} catch (ClassCastException e) {
}
return null;
}
@Override
public String getTagForIntentSender(IIntentSender pendingResult, String prefix) {
if (!(pendingResult instanceof PendingIntentRecord)) {
return null;
}
try {
PendingIntentRecord res = (PendingIntentRecord)pendingResult;
synchronized (this) {
return getTagForIntentSenderLocked(res, prefix);
}
} catch (ClassCastException e) {
}
return null;
}
String getTagForIntentSenderLocked(PendingIntentRecord res, String prefix) {
final Intent intent = res.key.requestIntent;
if (intent != null) {
if (res.lastTag != null && res.lastTagPrefix == prefix && (res.lastTagPrefix == null
|| res.lastTagPrefix.equals(prefix))) {
return res.lastTag;
}
res.lastTagPrefix = prefix;
final StringBuilder sb = new StringBuilder(128);
if (prefix != null) {
sb.append(prefix);
}
if (intent.getAction() != null) {
sb.append(intent.getAction());
} else if (intent.getComponent() != null) {
intent.getComponent().appendShortString(sb);
} else {
sb.append("?");
}
return res.lastTag = sb.toString();
}
return null;
}
@Override
public void setProcessLimit(int max) {
enforceCallingPermission(android.Manifest.permission.SET_PROCESS_LIMIT,
"setProcessLimit()");
synchronized (this) {
mConstants.setOverrideMaxCachedProcesses(max);
}
trimApplications();
}
@Override
public int getProcessLimit() {
synchronized (this) {
return mConstants.getOverrideMaxCachedProcesses();
}
}
void importanceTokenDied(ImportanceToken token) {
synchronized (ActivityManagerService.this) {
synchronized (mPidsSelfLocked) {
ImportanceToken cur
= mImportantProcesses.get(token.pid);
if (cur != token) {
return;
}
mImportantProcesses.remove(token.pid);
ProcessRecord pr = mPidsSelfLocked.get(token.pid);
if (pr == null) {
return;
}
pr.forcingToImportant = null;
updateProcessForegroundLocked(pr, false, false);
}
updateOomAdjLocked();
}
}
@Override
public void setProcessImportant(IBinder token, int pid, boolean isForeground, String reason) {
enforceCallingPermission(android.Manifest.permission.SET_PROCESS_LIMIT,
"setProcessImportant()");
synchronized(this) {
boolean changed = false;
synchronized (mPidsSelfLocked) {
ProcessRecord pr = mPidsSelfLocked.get(pid);
if (pr == null && isForeground) {
Slog.w(TAG, "setProcessForeground called on unknown pid: " + pid);
return;
}
ImportanceToken oldToken = mImportantProcesses.get(pid);
if (oldToken != null) {
oldToken.token.unlinkToDeath(oldToken, 0);
mImportantProcesses.remove(pid);
if (pr != null) {
pr.forcingToImportant = null;
}
changed = true;
}
if (isForeground && token != null) {
ImportanceToken newToken = new ImportanceToken(pid, token, reason) {
@Override
public void binderDied() {
importanceTokenDied(this);
}
};
try {
token.linkToDeath(newToken, 0);
mImportantProcesses.put(pid, newToken);
pr.forcingToImportant = newToken;
changed = true;
} catch (RemoteException e) {
// If the process died while doing this, we will later
// do the cleanup with the process death link.
}
}
}
if (changed) {
updateOomAdjLocked();
}
}
}
@Override
public boolean isAppForeground(int uid) throws RemoteException {
synchronized (this) {
UidRecord uidRec = mActiveUids.get(uid);
if (uidRec == null || uidRec.idle) {
return false;
}
return uidRec.curProcState <= ActivityManager.PROCESS_STATE_IMPORTANT_FOREGROUND;
}
}
// NOTE: this is an internal method used by the OnShellCommand implementation only and should
// be guarded by permission checking.
int getUidState(int uid) {
synchronized (this) {
return getUidStateLocked(uid);
}
}
int getUidStateLocked(int uid) {
UidRecord uidRec = mActiveUids.get(uid);
return uidRec == null ? ActivityManager.PROCESS_STATE_NONEXISTENT : uidRec.curProcState;
}
@Override
public boolean isInMultiWindowMode(IBinder token) {
final long origId = Binder.clearCallingIdentity();
try {
synchronized(this) {
final ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r == null) {
return false;
}
// An activity is consider to be in multi-window mode if its task isn't fullscreen.
return !r.getTask().mFullscreen;
}
} finally {
Binder.restoreCallingIdentity(origId);
}
}
@Override
public boolean isInPictureInPictureMode(IBinder token) {
final long origId = Binder.clearCallingIdentity();
try {
synchronized(this) {
return isInPictureInPictureMode(ActivityRecord.forTokenLocked(token));
}
} finally {
Binder.restoreCallingIdentity(origId);
}
}
private boolean isInPictureInPictureMode(ActivityRecord r) {
if (r == null || r.getStack() == null || !r.inPinnedWindowingMode()
|| r.getStack().isInStackLocked(r) == null) {
return false;
}
// If we are animating to fullscreen then we have already dispatched the PIP mode
// changed, so we should reflect that check here as well.
final PinnedActivityStack stack = r.getStack();
final PinnedStackWindowController windowController = stack.getWindowContainerController();
return !windowController.isAnimatingBoundsToFullscreen();
}
@Override
public boolean enterPictureInPictureMode(IBinder token, final PictureInPictureParams params) {
final long origId = Binder.clearCallingIdentity();
try {
synchronized(this) {
final ActivityRecord r = ensureValidPictureInPictureActivityParamsLocked(
"enterPictureInPictureMode", token, params);
// If the activity is already in picture in picture mode, then just return early
if (isInPictureInPictureMode(r)) {
return true;
}
// Activity supports picture-in-picture, now check that we can enter PiP at this
// point, if it is
if (!r.checkEnterPictureInPictureState("enterPictureInPictureMode",
false /* beforeStopping */)) {
return false;
}
final Runnable enterPipRunnable = () -> {
// Only update the saved args from the args that are set
r.pictureInPictureArgs.copyOnlySet(params);
final float aspectRatio = r.pictureInPictureArgs.getAspectRatio();
final List<RemoteAction> actions = r.pictureInPictureArgs.getActions();
// Adjust the source bounds by the insets for the transition down
final Rect sourceBounds = new Rect(r.pictureInPictureArgs.getSourceRectHint());
mStackSupervisor.moveActivityToPinnedStackLocked(r, sourceBounds, aspectRatio,
"enterPictureInPictureMode");
final PinnedActivityStack stack = r.getStack();
stack.setPictureInPictureAspectRatio(aspectRatio);
stack.setPictureInPictureActions(actions);
MetricsLogger.action(mContext, MetricsEvent.ACTION_PICTURE_IN_PICTURE_ENTERED,
r.supportsEnterPipOnTaskSwitch);
logPictureInPictureArgs(params);
};
if (isKeyguardLocked()) {
// If the keyguard is showing or occluded, then try and dismiss it before
// entering picture-in-picture (this will prompt the user to authenticate if the
// device is currently locked).
try {
dismissKeyguard(token, new IKeyguardDismissCallback.Stub() {
@Override
public void onDismissError() throws RemoteException {
// Do nothing
}
@Override
public void onDismissSucceeded() throws RemoteException {
mHandler.post(enterPipRunnable);
}
@Override
public void onDismissCancelled() throws RemoteException {
// Do nothing
}
});
} catch (RemoteException e) {
// Local call
}
} else {
// Enter picture in picture immediately otherwise
enterPipRunnable.run();
}
return true;
}
} finally {
Binder.restoreCallingIdentity(origId);
}
}
@Override
public void setPictureInPictureParams(IBinder token, final PictureInPictureParams params) {
final long origId = Binder.clearCallingIdentity();
try {
synchronized(this) {
final ActivityRecord r = ensureValidPictureInPictureActivityParamsLocked(
"setPictureInPictureParams", token, params);
// Only update the saved args from the args that are set
r.pictureInPictureArgs.copyOnlySet(params);
if (r.inPinnedWindowingMode()) {
// If the activity is already in picture-in-picture, update the pinned stack now
// if it is not already expanding to fullscreen. Otherwise, the arguments will
// be used the next time the activity enters PiP
final PinnedActivityStack stack = r.getStack();
if (!stack.isAnimatingBoundsToFullscreen()) {
stack.setPictureInPictureAspectRatio(
r.pictureInPictureArgs.getAspectRatio());
stack.setPictureInPictureActions(r.pictureInPictureArgs.getActions());
}
}
logPictureInPictureArgs(params);
}
} finally {
Binder.restoreCallingIdentity(origId);
}
}
@Override
public int getMaxNumPictureInPictureActions(IBinder token) {
// Currently, this is a static constant, but later, we may change this to be dependent on
// the context of the activity
return 3;
}
private void logPictureInPictureArgs(PictureInPictureParams params) {
if (params.hasSetActions()) {
MetricsLogger.histogram(mContext, "tron_varz_picture_in_picture_actions_count",
params.getActions().size());
}
if (params.hasSetAspectRatio()) {
LogMaker lm = new LogMaker(MetricsEvent.ACTION_PICTURE_IN_PICTURE_ASPECT_RATIO_CHANGED);
lm.addTaggedData(MetricsEvent.PICTURE_IN_PICTURE_ASPECT_RATIO, params.getAspectRatio());
MetricsLogger.action(lm);
}
}
/**
* Checks the state of the system and the activity associated with the given {@param token} to
* verify that picture-in-picture is supported for that activity.
*
* @return the activity record for the given {@param token} if all the checks pass.
*/
private ActivityRecord ensureValidPictureInPictureActivityParamsLocked(String caller,
IBinder token, PictureInPictureParams params) {
if (!mSupportsPictureInPicture) {
throw new IllegalStateException(caller
+ ": Device doesn't support picture-in-picture mode.");
}
final ActivityRecord r = ActivityRecord.forTokenLocked(token);
if (r == null) {
throw new IllegalStateException(caller
+ ": Can't find activity for token=" + token);
}
if (!r.supportsPictureInPicture()) {
throw new IllegalStateException(caller
+ ": Current activity does not support picture-in-picture.");
}
if (params.hasSetAspectRatio()
&& !mWindowManager.isValidPictureInPictureAspectRatio(r.getStack().mDisplayId,
params.getAspectRatio())) {
final float minAspectRatio = mContext.getResources().getFloat(
com.android.internal.R.dimen.config_pictureInPictureMinAspectRatio);
final float maxAspectRatio = mContext.getResources().getFloat(
com.android.internal.R.dimen.config_pictureInPictureMaxAspectRatio);
throw new IllegalArgumentException(String.format(caller
+ ": Aspect ratio is too extreme (must be between %f and %f).",
minAspectRatio, maxAspectRatio));
}
// Truncate the number of actions if necessary
params.truncateActions(getMaxNumPictureInPictureActions(token));
return r;
}
// =========================================================
// PROCESS INFO
// =========================================================
static class ProcessInfoService extends IProcessInfoService.Stub {
final ActivityManagerService mActivityManagerService;
ProcessInfoService(ActivityManagerService activityManagerService) {
mActivityManagerService = activityManagerService;
}
@Override
public void getProcessStatesFromPids(/*in*/ int[] pids, /*out*/ int[] states) {
mActivityManagerService.getProcessStatesAndOomScoresForPIDs(
/*in*/ pids, /*out*/ states, null);
}
@Override
public void getProcessStatesAndOomScoresFromPids(
/*in*/ int[] pids, /*out*/ int[] states, /*out*/ int[] scores) {
mActivityManagerService.getProcessStatesAndOomScoresForPIDs(
/*in*/ pids, /*out*/ states, /*out*/ scores);
}
}
/**
* For each PID in the given input array, write the current process state
* for that process into the states array, or -1 to indicate that no
* process with the given PID exists. If scores array is provided, write
* the oom score for the process into the scores array, with INVALID_ADJ
* indicating the PID doesn't exist.
*/
public void getProcessStatesAndOomScoresForPIDs(
/*in*/ int[] pids, /*out*/ int[] states, /*out*/ int[] scores) {
if (scores != null) {
enforceCallingPermission(android.Manifest.permission.GET_PROCESS_STATE_AND_OOM_SCORE,
"getProcessStatesAndOomScoresForPIDs()");
}
if (pids == null) {
throw new NullPointerException("pids");
} else if (states == null) {
throw new NullPointerException("states");
} else if (pids.length != states.length) {
throw new IllegalArgumentException("pids and states arrays have different lengths!");
} else if (scores != null && pids.length != scores.length) {
throw new IllegalArgumentException("pids and scores arrays have different lengths!");
}
synchronized (mPidsSelfLocked) {
for (int i = 0; i < pids.length; i++) {
ProcessRecord pr = mPidsSelfLocked.get(pids[i]);
states[i] = (pr == null) ? ActivityManager.PROCESS_STATE_NONEXISTENT :
pr.curProcState;
if (scores != null) {
scores[i] = (pr == null) ? ProcessList.INVALID_ADJ : pr.curAdj;
}
}
}
}
// =========================================================
// PERMISSIONS
// =========================================================
static class PermissionController extends IPermissionController.Stub {
ActivityManagerService mActivityManagerService;
PermissionController(ActivityManagerService activityManagerService) {
mActivityManagerService = activityManagerService;
}
@Override
public boolean checkPermission(String permission, int pid, int uid) {
return mActivityManagerService.checkPermission(permission, pid,
uid) == PackageManager.PERMISSION_GRANTED;
}
@Override
public String[] getPackagesForUid(int uid) {
return mActivityManagerService.mContext.getPackageManager()
.getPackagesForUid(uid);
}
@Override
public boolean isRuntimePermission(String permission) {
try {
PermissionInfo info = mActivityManagerService.mContext.getPackageManager()
.getPermissionInfo(permission, 0);
return (info.protectionLevel & PermissionInfo.PROTECTION_MASK_BASE)
== PermissionInfo.PROTECTION_DANGEROUS;
} catch (NameNotFoundException nnfe) {
Slog.e(TAG, "No such permission: "+ permission, nnfe);
}
return false;
}
}
class IntentFirewallInterface implements IntentFirewall.AMSInterface {
@Override
public int checkComponentPermission(String permission, int pid, int uid,
int owningUid, boolean exported) {
return ActivityManagerService.this.checkComponentPermission(permission, pid, uid,
owningUid, exported);
}
@Override
public Object getAMSLock() {
return ActivityManagerService.this;
}
}
int checkComponentPermission(String permission, int pid, int uid,
int owningUid, boolean exported) {
if (pid == MY_PID) {
return PackageManager.PERMISSION_GRANTED;
}
return ActivityManager.checkComponentPermission(permission, uid,
owningUid, exported);
}
/**
* As the only public entry point for permissions checking, this method
* can enforce the semantic that requesting a check on a null global
* permission is automatically denied. (Internally a null permission
* string is used when calling {@link #checkComponentPermission} in cases
* when only uid-based security is needed.)
*
* This can be called with or without the global lock held.
*/
@Override
public int checkPermission(String permission, int pid, int uid) {
if (permission == null) {
return PackageManager.PERMISSION_DENIED;
}
return checkComponentPermission(permission, pid, uid, -1, true);
}
@Override
public int checkPermissionWithToken(String permission, int pid, int uid, IBinder callerToken) {
if (permission == null) {
return PackageManager.PERMISSION_DENIED;
}
// We might be performing an operation on behalf of an indirect binder
// invocation, e.g. via {@link #openContentUri}. Check and adjust the
// client identity accordingly before proceeding.
Identity tlsIdentity = sCallerIdentity.get();
if (tlsIdentity != null && tlsIdentity.token == callerToken) {
Slog.d(TAG, "checkComponentPermission() adjusting {pid,uid} to {"
+ tlsIdentity.pid + "," + tlsIdentity.uid + "}");
uid = tlsIdentity.uid;
pid = tlsIdentity.pid;
}
return checkComponentPermission(permission, pid, uid, -1, true);
}
/**
* Binder IPC calls go through the public entry point.
* This can be called with or without the global lock held.
*/
int checkCallingPermission(String permission) {
return checkPermission(permission,
Binder.getCallingPid(),
UserHandle.getAppId(Binder.getCallingUid()));
}
/**
* This can be called with or without the global lock held.
*/
void enforceCallingPermission(String permission, String func) {
if (checkCallingPermission(permission)
== PackageManager.PERMISSION_GRANTED) {
return;
}
String msg = "Permission Denial: " + func + " from pid="
+ Binder.getCallingPid()
+ ", uid=" + Binder.getCallingUid()
+ " requires " + permission;
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
/**
* This can be called with or without the global lock held.
*/
void enforceCallerIsRecentsOrHasPermission(String permission, String func) {
if (!mRecentTasks.isCallerRecents(Binder.getCallingUid())) {
enforceCallingPermission(permission, func);
}
}
/**
* Determine if UID is holding permissions required to access {@link Uri} in
* the given {@link ProviderInfo}. Final permission checking is always done
* in {@link ContentProvider}.
*/
private final boolean checkHoldingPermissionsLocked(
IPackageManager pm, ProviderInfo pi, GrantUri grantUri, int uid, final int modeFlags) {
if (DEBUG_URI_PERMISSION) Slog.v(TAG_URI_PERMISSION,
"checkHoldingPermissionsLocked: uri=" + grantUri + " uid=" + uid);
if (UserHandle.getUserId(uid) != grantUri.sourceUserId) {
if (ActivityManager.checkComponentPermission(INTERACT_ACROSS_USERS, uid, -1, true)
!= PERMISSION_GRANTED) {
return false;
}
}
return checkHoldingPermissionsInternalLocked(pm, pi, grantUri, uid, modeFlags, true);
}
private final boolean checkHoldingPermissionsInternalLocked(IPackageManager pm, ProviderInfo pi,
GrantUri grantUri, int uid, final int modeFlags, boolean considerUidPermissions) {
if (pi.applicationInfo.uid == uid) {
return true;
} else if (!pi.exported) {
return false;
}
boolean readMet = (modeFlags & Intent.FLAG_GRANT_READ_URI_PERMISSION) == 0;
boolean writeMet = (modeFlags & Intent.FLAG_GRANT_WRITE_URI_PERMISSION) == 0;
try {
// check if target holds top-level <provider> permissions
if (!readMet && pi.readPermission != null && considerUidPermissions
&& (pm.checkUidPermission(pi.readPermission, uid) == PERMISSION_GRANTED)) {
readMet = true;
}
if (!writeMet && pi.writePermission != null && considerUidPermissions
&& (pm.checkUidPermission(pi.writePermission, uid) == PERMISSION_GRANTED)) {
writeMet = true;
}
// track if unprotected read/write is allowed; any denied
// <path-permission> below removes this ability
boolean allowDefaultRead = pi.readPermission == null;
boolean allowDefaultWrite = pi.writePermission == null;
// check if target holds any <path-permission> that match uri
final PathPermission[] pps = pi.pathPermissions;
if (pps != null) {
final String path = grantUri.uri.getPath();
int i = pps.length;
while (i > 0 && (!readMet || !writeMet)) {
i--;
PathPermission pp = pps[i];
if (pp.match(path)) {
if (!readMet) {
final String pprperm = pp.getReadPermission();
if (DEBUG_URI_PERMISSION) Slog.v(TAG_URI_PERMISSION,
"Checking read perm for " + pprperm + " for " + pp.getPath()
+ ": match=" + pp.match(path)
+ " check=" + pm.checkUidPermission(pprperm, uid));
if (pprperm != null) {
if (considerUidPermissions && pm.checkUidPermission(pprperm, uid)
== PERMISSION_GRANTED) {
readMet = true;
} else {
allowDefaultRead = false;
}
}
}
if (!writeMet) {
final String ppwperm = pp.getWritePermission();
if (DEBUG_URI_PERMISSION) Slog.v(TAG_URI_PERMISSION,
"Checking write perm " + ppwperm + " for " + pp.getPath()
+ ": match=" + pp.match(path)
+ " check=" + pm.checkUidPermission(ppwperm, uid));
if (ppwperm != null) {
if (considerUidPermissions && pm.checkUidPermission(ppwperm, uid)
== PERMISSION_GRANTED) {
writeMet = true;
} else {
allowDefaultWrite = false;
}
}
}
}
}
}
// grant unprotected <provider> read/write, if not blocked by
// <path-permission> above
if (allowDefaultRead) readMet = true;
if (allowDefaultWrite) writeMet = true;
} catch (RemoteException e) {
return false;
}
return readMet && writeMet;
}
public boolean isAppStartModeDisabled(int uid, String packageName) {
synchronized (this) {
return getAppStartModeLocked(uid, packageName, 0, -1, false, true)
== ActivityManager.APP_START_MODE_DISABLED;
}
}
// Unified app-op and target sdk check
int appRestrictedInBackgroundLocked(int uid, String packageName, int packageTargetSdk) {
// Apps that target O+ are always subject to background check
if (packageTargetSdk >= Build.VERSION_CODES.O) {
if (DEBUG_BACKGROUND_CHECK) {
Slog.i(TAG, "App " + uid + "/" + packageName + " targets O+, restricted");
}
return ActivityManager.APP_START_MODE_DELAYED_RIGID;
}
// ...and legacy apps get an AppOp check
int appop = mAppOpsService.noteOperation(AppOpsManager.OP_RUN_IN_BACKGROUND,
uid, packageName);
if (DEBUG_BACKGROUND_CHECK) {
Slog.i(TAG, "Legacy app " + uid + "/" + packageName + " bg appop " + appop);
}
switch (appop) {
case AppOpsManager.MODE_ALLOWED:
return ActivityManager.APP_START_MODE_NORMAL;
case AppOpsManager.MODE_IGNORED:
return ActivityManager.APP_START_MODE_DELAYED;
default:
return ActivityManager.APP_START_MODE_DELAYED_RIGID;
}
}
// Service launch is available to apps with run-in-background exemptions but
// some other background operations are not. If we're doing a check
// of service-launch policy, allow those callers to proceed unrestricted.
int appServicesRestrictedInBackgroundLocked(int uid, String packageName, int packageTargetSdk) {
// Persistent app?
if (mPackageManagerInt.isPackagePersistent(packageName)) {
if (DEBUG_BACKGROUND_CHECK) {
Slog.i(TAG, "App " + uid + "/" + packageName
+ " is persistent; not restricted in background");
}
return ActivityManager.APP_START_MODE_NORMAL;
}
// Non-persistent but background whitelisted?
if (uidOnBackgroundWhitelist(uid)) {
if (DEBUG_BACKGROUND_CHECK) {
Slog.i(TAG, "App " + uid + "/" + packageName
+ " on background whitelist; not restricted in background");
}
return ActivityManager.APP_START_MODE_NORMAL;
}
// Is this app on the battery whitelist?
if (isOnDeviceIdleWhitelistLocked(uid)) {
if (DEBUG_BACKGROUND_CHECK) {
Slog.i(TAG, "App " + uid + "/" + packageName
+ " on idle whitelist; not restricted in background");
}
return ActivityManager.APP_START_MODE_NORMAL;
}
// None of the service-policy criteria apply, so we apply the common criteria
return appRestrictedInBackgroundLocked(uid, packageName, packageTargetSdk);
}
int getAppStartModeLocked(int uid, String packageName, int packageTargetSdk,
int callingPid, boolean alwaysRestrict, boolean disabledOnly) {
UidRecord uidRec = mActiveUids.get(uid);
if (DEBUG_BACKGROUND_CHECK) Slog.d(TAG, "checkAllowBackground: uid=" + uid + " pkg="
+ packageName + " rec=" + uidRec + " always=" + alwaysRestrict + " idle="
+ (uidRec != null ? uidRec.idle : false));
if (uidRec == null || alwaysRestrict || uidRec.idle) {
boolean ephemeral;
if (uidRec == null) {
ephemeral = getPackageManagerInternalLocked().isPackageEphemeral(
UserHandle.getUserId(uid), packageName);
} else {
ephemeral = uidRec.ephemeral;
}
if (ephemeral) {
// We are hard-core about ephemeral apps not running in the background.
return ActivityManager.APP_START_MODE_DISABLED;
} else {
if (disabledOnly) {
// The caller is only interested in whether app starts are completely
// disabled for the given package (that is, it is an instant app). So
// we don't need to go further, which is all just seeing if we should
// apply a "delayed" mode for a regular app.
return ActivityManager.APP_START_MODE_NORMAL;
}
final int startMode = (alwaysRestrict)
? appRestrictedInBackgroundLocked(uid, packageName, packageTargetSdk)
: appServicesRestrictedInBackgroundLocked(uid, packageName,
packageTargetSdk);
if (DEBUG_BACKGROUND_CHECK) Slog.d(TAG, "checkAllowBackground: uid=" + uid
+ " pkg=" + packageName + " startMode=" + startMode
+ " onwhitelist=" + isOnDeviceIdleWhitelistLocked(uid));
if (startMode == ActivityManager.APP_START_MODE_DELAYED) {
// This is an old app that has been forced into a "compatible as possible"
// mode of background check. To increase compatibility, we will allow other
// foreground apps to cause its services to start.
if (callingPid >= 0) {
ProcessRecord proc;
synchronized (mPidsSelfLocked) {
proc = mPidsSelfLocked.get(callingPid);
}
if (proc != null &&
!ActivityManager.isProcStateBackground(proc.curProcState)) {
// Whoever is instigating this is in the foreground, so we will allow it
// to go through.
return ActivityManager.APP_START_MODE_NORMAL;
}
}
}
return startMode;
}
}
return ActivityManager.APP_START_MODE_NORMAL;
}
boolean isOnDeviceIdleWhitelistLocked(int uid) {
final int appId = UserHandle.getAppId(uid);
return Arrays.binarySearch(mDeviceIdleWhitelist, appId) >= 0
|| Arrays.binarySearch(mDeviceIdleTempWhitelist, appId) >= 0
|| mPendingTempWhitelist.indexOfKey(uid) >= 0;
}
private ProviderInfo getProviderInfoLocked(String authority, int userHandle, int pmFlags) {
ProviderInfo pi = null;
ContentProviderRecord cpr = mProviderMap.getProviderByName(authority, userHandle);
if (cpr != null) {
pi = cpr.info;
} else {
try {
pi = AppGlobals.getPackageManager().resolveContentProvider(
authority, PackageManager.GET_URI_PERMISSION_PATTERNS | pmFlags,
userHandle);
} catch (RemoteException ex) {
}
}
return pi;
}
void grantEphemeralAccessLocked(int userId, Intent intent,
int targetAppId, int ephemeralAppId) {
getPackageManagerInternalLocked().
grantEphemeralAccess(userId, intent, targetAppId, ephemeralAppId);
}
private UriPermission findUriPermissionLocked(int targetUid, GrantUri grantUri) {
final ArrayMap<GrantUri, UriPermission> targetUris = mGrantedUriPermissions.get(targetUid);
if (targetUris != null) {
return targetUris.get(grantUri);
}
return null;
}
private UriPermission findOrCreateUriPermissionLocked(String sourcePkg,
String targetPkg, int targetUid, GrantUri grantUri) {
ArrayMap<GrantUri, UriPermission> targetUris = mGrantedUriPermissions.get(targetUid);
if (targetUris == null) {
targetUris = Maps.newArrayMap();
mGrantedUriPermissions.put(targetUid, targetUris);
}
UriPermission perm = targetUris.get(grantUri);
if (perm == null) {
perm = new UriPermission(sourcePkg, targetPkg, targetUid, grantUri);
targetUris.put(grantUri, perm);
}
return perm;
}
private final boolean checkUriPermissionLocked(GrantUri grantUri, int uid,
final int modeFlags) {
final boolean persistable = (modeFlags & Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION) != 0;
final int minStrength = persistable ? UriPermission.STRENGTH_PERSISTABLE
: UriPermission.STRENGTH_OWNED;
// Root gets to do everything.
if (uid == 0) {
return true;
}
final ArrayMap<GrantUri, UriPermission> perms = mGrantedUriPermissions.get(uid);
if (perms == null) return false;
// First look for exact match
final UriPermission exactPerm = perms.get(grantUri);
if (exactPerm != null && exactPerm.getStrength(modeFlags) >= minStrength) {
return true;
}
// No exact match, look for prefixes
final int N = perms.size();
for (int i = 0; i < N; i++) {
final UriPermission perm = perms.valueAt(i);
if (perm.uri.prefix && grantUri.uri.isPathPrefixMatch(perm.uri.uri)
&& perm.getStrength(modeFlags) >= minStrength) {
return true;
}
}
return false;
}
/**
* @param uri This uri must NOT contain an embedded userId.
* @param userId The userId in which the uri is to be resolved.
*/
@Override
public int checkUriPermission(Uri uri, int pid, int uid,
final int modeFlags, int userId, IBinder callerToken) {
enforceNotIsolatedCaller("checkUriPermission");
// Another redirected-binder-call permissions check as in
// {@link checkPermissionWithToken}.
Identity tlsIdentity = sCallerIdentity.get();
if (tlsIdentity != null && tlsIdentity.token == callerToken) {
uid = tlsIdentity.uid;
pid = tlsIdentity.pid;
}
// Our own process gets to do everything.
if (pid == MY_PID) {
return PackageManager.PERMISSION_GRANTED;
}
synchronized (this) {
return checkUriPermissionLocked(new GrantUri(userId, uri, false), uid, modeFlags)
? PackageManager.PERMISSION_GRANTED
: PackageManager.PERMISSION_DENIED;
}
}
/**
* Check if the targetPkg can be granted permission to access uri by
* the callingUid using the given modeFlags. Throws a security exception
* if callingUid is not allowed to do this. Returns the uid of the target
* if the URI permission grant should be performed; returns -1 if it is not
* needed (for example targetPkg already has permission to access the URI).
* If you already know the uid of the target, you can supply it in
* lastTargetUid else set that to -1.
*/
int checkGrantUriPermissionLocked(int callingUid, String targetPkg, GrantUri grantUri,
final int modeFlags, int lastTargetUid) {
if (!Intent.isAccessUriMode(modeFlags)) {
return -1;
}
if (targetPkg != null) {
if (DEBUG_URI_PERMISSION) Slog.v(TAG_URI_PERMISSION,
"Checking grant " + targetPkg + " permission to " + grantUri);
}
final IPackageManager pm = AppGlobals.getPackageManager();
// If this is not a content: uri, we can't do anything with it.
if (!ContentResolver.SCHEME_CONTENT.equals(grantUri.uri.getScheme())) {
if (DEBUG_URI_PERMISSION) Slog.v(TAG_URI_PERMISSION,
"Can't grant URI permission for non-content URI: " + grantUri);
return -1;
}
// Bail early if system is trying to hand out permissions directly; it
// must always grant permissions on behalf of someone explicit.
final int callingAppId = UserHandle.getAppId(callingUid);
if ((callingAppId == SYSTEM_UID) || (callingAppId == ROOT_UID)) {
if ("com.android.settings.files".equals(grantUri.uri.getAuthority())) {
// Exempted authority for cropping user photos in Settings app
} else {
Slog.w(TAG, "For security reasons, the system cannot issue a Uri permission"
+ " grant to " + grantUri + "; use startActivityAsCaller() instead");
return -1;
}
}
final String authority = grantUri.uri.getAuthority();
final ProviderInfo pi = getProviderInfoLocked(authority, grantUri.sourceUserId,
MATCH_DEBUG_TRIAGED_MISSING);
if (pi == null) {
Slog.w(TAG, "No content provider found for permission check: " +
grantUri.uri.toSafeString());
return -1;
}
int targetUid = lastTargetUid;
if (targetUid < 0 && targetPkg != null) {
try {
targetUid = pm.getPackageUid(targetPkg, MATCH_DEBUG_TRIAGED_MISSING,
UserHandle.getUserId(callingUid));
if (targetUid < 0) {
if (DEBUG_URI_PERMISSION) Slog.v(TAG_URI_PERMISSION,
"Can't grant URI permission no uid for: " + targetPkg);
return -1;
}
} catch (RemoteException ex) {
return -1;
}
}
// If we're extending a persistable grant, then we always need to create
// the grant data structure so that take/release APIs work
if ((modeFlags & Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION) != 0) {
return targetUid;
}
if (targetUid >= 0) {
// First... does the target actually need this permission?
if (checkHoldingPermissionsLocked(pm, pi, grantUri, targetUid, modeFlags)) {
// No need to grant the target this permission.
if (DEBUG_URI_PERMISSION) Slog.v(TAG_URI_PERMISSION,
"Target " + targetPkg + " already has full permission to " + grantUri);
return -1;
}
} else {
// First... there is no target package, so can anyone access it?
boolean allowed = pi.exported;
if ((modeFlags&Intent.FLAG_GRANT_READ_URI_PERMISSION) != 0) {
if (pi.readPermission != null) {
allowed = false;
}
}
if ((modeFlags&Intent.FLAG_GRANT_WRITE_URI_PERMISSION) != 0) {
if (pi.writePermission != null) {
allowed = false;
}
}
if (allowed) {
return -1;
}
}
/* There is a special cross user grant if:
* - The target is on another user.
* - Apps on the current user can access the uri without any uid permissions.
* In this case, we grant a uri permission, even if the ContentProvider does not normally
* grant uri permissions.
*/
boolean specialCrossUserGrant = UserHandle.getUserId(targetUid) != grantUri.sourceUserId
&& checkHoldingPermissionsInternalLocked(pm, pi, grantUri, callingUid,
modeFlags, false /*without considering the uid permissions*/);
// Second... is the provider allowing granting of URI permissions?
if (!specialCrossUserGrant) {
if (!pi.grantUriPermissions) {
throw new SecurityException("Provider " + pi.packageName
+ "/" + pi.name
+ " does not allow granting of Uri permissions (uri "
+ grantUri + ")");
}
if (pi.uriPermissionPatterns != null) {
final int N = pi.uriPermissionPatterns.length;
boolean allowed = false;
for (int i=0; i<N; i++) {
if (pi.uriPermissionPatterns[i] != null
&& pi.uriPermissionPatterns[i].match(grantUri.uri.getPath())) {
allowed = true;
break;
}
}
if (!allowed) {
throw new SecurityException("Provider " + pi.packageName
+ "/" + pi.name
+ " does not allow granting of permission to path of Uri "
+ grantUri);
}
}
}
// Third... does the caller itself have permission to access
// this uri?
if (!checkHoldingPermissionsLocked(pm, pi, grantUri, callingUid, modeFlags)) {
// Require they hold a strong enough Uri permission
if (!checkUriPermissionLocked(grantUri, callingUid, modeFlags)) {
if (android.Manifest.permission.MANAGE_DOCUMENTS.equals(pi.readPermission)) {
throw new SecurityException(
"UID " + callingUid + " does not have permission to " + grantUri
+ "; you could obtain access using ACTION_OPEN_DOCUMENT "
+ "or related APIs");
} else {
throw new SecurityException(
"UID " + callingUid + " does not have permission to " + grantUri);
}
}
}
return targetUid;
}
/**
* @param uri This uri must NOT contain an embedded userId.
* @param userId The userId in which the uri is to be resolved.
*/
@Override
public int checkGrantUriPermission(int callingUid, String targetPkg, Uri uri,
final int modeFlags, int userId) {
enforceNotIsolatedCaller("checkGrantUriPermission");
synchronized(this) {
return checkGrantUriPermissionLocked(callingUid, targetPkg,
new GrantUri(userId, uri, false), modeFlags, -1);
}
}
void grantUriPermissionUncheckedLocked(int targetUid, String targetPkg, GrantUri grantUri,
final int modeFlags, UriPermissionOwner owner) {
if (!Intent.isAccessUriMode(modeFlags)) {
return;
}
// So here we are: the caller has the assumed permission
// to the uri, and the target doesn't. Let's now give this to
// the target.
if (DEBUG_URI_PERMISSION) Slog.v(TAG_URI_PERMISSION,
"Granting " + targetPkg + "/" + targetUid + " permission to " + grantUri);
final String authority = grantUri.uri.getAuthority();
final ProviderInfo pi = getProviderInfoLocked(authority, grantUri.sourceUserId,
MATCH_DEBUG_TRIAGED_MISSING);
if (pi == null) {
Slog.w(TAG, "No content provider found for grant: " + grantUri.toSafeString());
return;
}
if ((modeFlags & Intent.FLAG_GRANT_PREFIX_URI_PERMISSION) != 0) {
grantUri.prefix = true;
}
final UriPermission perm = findOrCreateUriPermissionLocked(
pi.packageName, targetPkg, targetUid, grantUri);
perm.grantModes(modeFlags, owner);
}
void grantUriPermissionLocked(int callingUid, String targetPkg, GrantUri grantUri,
final int modeFlags, UriPermissionOwner owner, int targetUserId) {
if (targetPkg == null) {
throw new NullPointerException("targetPkg");
}
int targetUid;
final IPackageManager pm = AppGlobals.getPackageManager();
try {
targetUid = pm.getPackageUid(targetPkg, MATCH_DEBUG_TRIAGED_MISSING, targetUserId);
} catch (RemoteException ex) {
return;
}
targetUid = checkGrantUriPermissionLocked(callingUid, targetPkg, grantUri, modeFlags,
targetUid);
if (targetUid < 0) {
return;
}
grantUriPermissionUncheckedLocked(targetUid, targetPkg, grantUri, modeFlags,
owner);
}
static class NeededUriGrants extends ArrayList<GrantUri> {
final String targetPkg;
final int targetUid;
final int flags;
NeededUriGrants(String targetPkg, int targetUid, int flags) {
this.targetPkg = targetPkg;
this.targetUid = targetUid;
this.flags = flags;
}
}
/**
* Like checkGrantUriPermissionLocked, but takes an Intent.
*/
NeededUriGrants checkGrantUriPermissionFromIntentLocked(int callingUid,
String targetPkg, Intent intent, int mode, NeededUriGrants needed, int targetUserId) {
if (DEBUG_URI_PERMISSION) Slog.v(TAG_URI_PERMISSION,
"Checking URI perm to data=" + (intent != null ? intent.getData() : null)
+ " clip=" + (intent != null ? intent.getClipData() : null)
+ " from " + intent + "; flags=0x"
+ Integer.toHexString(intent != null ? intent.getFlags() : 0));
if (targetPkg == null) {
throw new NullPointerException("targetPkg");
}
if (intent == null) {
return null;
}
Uri data = intent.getData();
ClipData clip = intent.getClipData();
if (data == null && clip == null) {
return null;
}
// Default userId for uris in the intent (if they don't specify it themselves)
int contentUserHint = intent.getContentUserHint();
if (contentUserHint == UserHandle.USER_CURRENT) {
contentUserHint = UserHandle.getUserId(callingUid);
}
final IPackageManager pm = AppGlobals.getPackageManager();
int targetUid;
if (needed != null) {
targetUid = needed.targetUid;
} else {
try {
targetUid = pm.getPackageUid(targetPkg, MATCH_DEBUG_TRIAGED_MISSING,
targetUserId);
} catch (RemoteException ex) {
return null;
}
if (targetUid < 0) {
if (DEBUG_URI_PERMISSION) Slog.v(TAG_URI_PERMISSION,
"Can't grant URI permission no uid for: " + targetPkg
+ " on user " + targetUserId);
return null;
}
}
if (data != null) {
GrantUri grantUri = GrantUri.resolve(contentUserHint, data);
targetUid = checkGrantUriPermissionLocked(callingUid, targetPkg, grantUri, mode,
targetUid);
if (targetUid > 0) {
if (needed == null) {
needed = new NeededUriGrants(targetPkg, targetUid, mode);
}
needed.add(grantUri);
}
}
if (clip != null) {
for (int i=0; i<clip.getItemCount(); i++) {
Uri uri = clip.getItemAt(i).getUri();
if (uri != null) {
GrantUri grantUri = GrantUri.resolve(contentUserHint, uri);
targetUid = checkGrantUriPermissionLocked(callingUid, targetPkg, grantUri, mode,
targetUid);
if (targetUid > 0) {
if (needed == null) {
needed = new NeededUriGrants(targetPkg, targetUid, mode);
}
needed.add(grantUri);
}
} else {
Intent clipIntent = clip.getItemAt(i).getIntent();
if (clipIntent != null) {
NeededUriGrants newNeeded = checkGrantUriPermissionFromIntentLocked(
callingUid, targetPkg, clipIntent, mode, needed, targetUserId);
if (newNeeded != null) {
needed = newNeeded;
}
}
}
}
}
return needed;
}
/**
* Like grantUriPermissionUncheckedLocked, but takes an Intent.
*/
void grantUriPermissionUncheckedFromIntentLocked(NeededUriGrants needed,
UriPermissionOwner owner) {
if (needed != null) {
for (int i=0; i<needed.size(); i++) {
GrantUri grantUri = needed.get(i);
grantUriPermissionUncheckedLocked(needed.targetUid, needed.targetPkg,
grantUri, needed.flags, owner);
}
}
}
void grantUriPermissionFromIntentLocked(int callingUid,
String targetPkg, Intent intent, UriPermissionOwner owner, int targetUserId) {
NeededUriGrants needed = checkGrantUriPermissionFromIntentLocked(callingUid, targetPkg,
intent, intent != null ? intent.getFlags() : 0, null, targetUserId);
if (needed == null) {
return;
}
grantUriPermissionUncheckedFromIntentLocked(needed, owner);
}
/**
* @param uri This uri must NOT contain an embedded userId.
* @param userId The userId in which the uri is to be resolved.
*/
@Override
public void grantUriPermission(IApplicationThread caller, String targetPkg, Uri uri,
final int modeFlags, int userId) {
enforceNotIsolatedCaller("grantUriPermission");
GrantUri grantUri = new GrantUri(userId, uri, false);
synchronized(this) {
final ProcessRecord r = getRecordForAppLocked(caller);
if (r == null) {
throw new SecurityException("Unable to find app for caller "
+ caller
+ " when granting permission to uri " + grantUri);
}
if (targetPkg == null) {
throw new IllegalArgumentException("null target");
}
if (grantUri == null) {
throw new IllegalArgumentException("null uri");
}
Preconditions.checkFlagsArgument(modeFlags, Intent.FLAG_GRANT_READ_URI_PERMISSION
| Intent.FLAG_GRANT_WRITE_URI_PERMISSION
| Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION
| Intent.FLAG_GRANT_PREFIX_URI_PERMISSION);
grantUriPermissionLocked(r.uid, targetPkg, grantUri, modeFlags, null,
UserHandle.getUserId(r.uid));
}
}
void removeUriPermissionIfNeededLocked(UriPermission perm) {
if (perm.modeFlags == 0) {
final ArrayMap<GrantUri, UriPermission> perms = mGrantedUriPermissions.get(
perm.targetUid);
if (perms != null) {
if (DEBUG_URI_PERMISSION) Slog.v(TAG_URI_PERMISSION,
"Removing " + perm.targetUid + " permission to " + perm.uri);
perms.remove(perm.uri);
if (perms.isEmpty()) {
mGrantedUriPermissions.remove(perm.targetUid);
}
}
}
}
private void revokeUriPermissionLocked(String targetPackage, int callingUid, GrantUri grantUri,
final int modeFlags) {
if (DEBUG_URI_PERMISSION) Slog.v(TAG_URI_PERMISSION,
"Revoking all granted permissions to " + grantUri);
final IPackageManager pm = AppGlobals.getPackageManager();
final String authority = grantUri.uri.getAuthority();
final ProviderInfo pi = getProviderInfoLocked(authority, grantUri.sourceUserId,
MATCH_DIRECT_BOOT_AWARE | MATCH_DIRECT_BOOT_UNAWARE);
if (pi == null) {
Slog.w(TAG, "No content provider found for permission revoke: "
+ grantUri.toSafeString());
return;
}
// Does the caller have this permission on the URI?
if (!checkHoldingPermissionsLocked(pm, pi, grantUri, callingUid, modeFlags)) {
// If they don't have direct access to the URI, then revoke any
// ownerless URI permissions that have been granted to them.
final ArrayMap<GrantUri, UriPermission> perms = mGrantedUriPermissions.get(callingUid);
if (perms != null) {
boolean persistChanged = false;
for (int i = perms.size()-1; i >= 0; i--) {
final UriPermission perm = perms.valueAt(i);
if (targetPackage != null && !targetPackage.equals(perm.targetPkg)) {
continue;
}
if (perm.uri.sourceUserId == grantUri.sourceUserId
&& perm.uri.uri.isPathPrefixMatch(grantUri.uri)) {
if (DEBUG_URI_PERMISSION) Slog.v(TAG_URI_PERMISSION,
"Revoking non-owned " + perm.targetUid
+ " permission to " + perm.uri);
persistChanged |= perm.revokeModes(
modeFlags | Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION, false);
if (perm.modeFlags == 0) {
perms.removeAt(i);
}
}
}
if (perms.isEmpty()) {
mGrantedUriPermissions.remove(callingUid);
}
if (persistChanged) {
schedulePersistUriGrants();
}
}
return;
}
boolean persistChanged = false;
// Go through all of the permissions and remove any that match.
for (int i = mGrantedUriPermissions.size()-1; i >= 0; i--) {
final int targetUid = mGrantedUriPermissions.keyAt(i);
final ArrayMap<GrantUri, UriPermission> perms = mGrantedUriPermissions.valueAt(i);
for (int j = perms.size()-1; j >= 0; j--) {
final UriPermission perm = perms.valueAt(j);
if (targetPackage != null && !targetPackage.equals(perm.targetPkg)) {
continue;
}
if (perm.uri.sourceUserId == grantUri.sourceUserId
&& perm.uri.uri.isPathPrefixMatch(grantUri.uri)) {
if (DEBUG_URI_PERMISSION) Slog.v(TAG_URI_PERMISSION,
"Revoking " + perm.targetUid + " permission to " + perm.uri);
persistChanged |= perm.revokeModes(
modeFlags | Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION,
targetPackage == null);
if (perm.modeFlags == 0) {
perms.removeAt(j);
}
}
}
if (perms.isEmpty()) {
mGrantedUriPermissions.removeAt(i);
}
}
if (persistChanged) {
schedulePersistUriGrants();
}
}
/**
* @param uri This uri must NOT contain an embedded userId.
* @param userId The userId in which the uri is to be resolved.
*/
@Override
public void revokeUriPermission(IApplicationThread caller, String targetPackage, Uri uri,
final int modeFlags, int userId) {
enforceNotIsolatedCaller("revokeUriPermission");
synchronized(this) {
final ProcessRecord r = getRecordForAppLocked(caller);
if (r == null) {
throw new SecurityException("Unable to find app for caller "
+ caller
+ " when revoking permission to uri " + uri);
}
if (uri == null) {
Slog.w(TAG, "revokeUriPermission: null uri");
return;
}
if (!Intent.isAccessUriMode(modeFlags)) {
return;
}
final String authority = uri.getAuthority();
final ProviderInfo pi = getProviderInfoLocked(authority, userId,
MATCH_DIRECT_BOOT_AWARE | MATCH_DIRECT_BOOT_UNAWARE);
if (pi == null) {
Slog.w(TAG, "No content provider found for permission revoke: "
+ uri.toSafeString());
return;
}
revokeUriPermissionLocked(targetPackage, r.uid, new GrantUri(userId, uri, false),
modeFlags);
}
}
/**
* Remove any {@link UriPermission} granted <em>from</em> or <em>to</em> the
* given package.
*
* @param packageName Package name to match, or {@code null} to apply to all
* packages.
* @param userHandle User to match, or {@link UserHandle#USER_ALL} to apply
* to all users.
* @param persistable If persistable grants should be removed.
*/
private void removeUriPermissionsForPackageLocked(
String packageName, int userHandle, boolean persistable) {
if (userHandle == UserHandle.USER_ALL && packageName == null) {
throw new IllegalArgumentException("Must narrow by either package or user");
}
boolean persistChanged = false;
int N = mGrantedUriPermissions.size();
for (int i = 0; i < N; i++) {
final int targetUid = mGrantedUriPermissions.keyAt(i);
final ArrayMap<GrantUri, UriPermission> perms = mGrantedUriPermissions.valueAt(i);
// Only inspect grants matching user
if (userHandle == UserHandle.USER_ALL
|| userHandle == UserHandle.getUserId(targetUid)) {
for (Iterator<UriPermission> it = perms.values().iterator(); it.hasNext();) {
final UriPermission perm = it.next();
// Only inspect grants matching package
if (packageName == null || perm.sourcePkg.equals(packageName)
|| perm.targetPkg.equals(packageName)) {
// Hacky solution as part of fixing a security bug; ignore
// grants associated with DownloadManager so we don't have
// to immediately launch it to regrant the permissions
if (Downloads.Impl.AUTHORITY.equals(perm.uri.uri.getAuthority())
&& !persistable) continue;
persistChanged |= perm.revokeModes(persistable
? ~0 : ~Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION, true);
// Only remove when no modes remain; any persisted grants
// will keep this alive.
if (perm.modeFlags == 0) {
it.remove();
}
}
}
if (perms.isEmpty()) {
mGrantedUriPermissions.remove(targetUid);
N--;
i--;
}
}
}
if (persistChanged) {
schedulePersistUriGrants();
}
}
@Override
public IBinder newUriPermissionOwner(String name) {
enforceNotIsolatedCaller("newUriPermissionOwner");
synchronized(this) {
UriPermissionOwner owner = new UriPermissionOwner(this, name);
return owner.getExternalTokenLocked();
}
}
@Override
public IBinder getUriPermissionOwnerForActivity(IBinder activityToken) {
enforceNotIsolatedCaller("getUriPermissionOwnerForActivity");
synchronized(this) {
ActivityRecord r = ActivityRecord.isInStackLocked(activityToken);
if (r == null) {
throw new IllegalArgumentException("Activity does not exist; token="
+ activityToken);
}
return r.getUriPermissionsLocked().getExternalTokenLocked();
}
}
/**
* @param uri This uri must NOT contain an embedded userId.
* @param sourceUserId The userId in which the uri is to be resolved.
* @param targetUserId The userId of the app that receives the grant.
*/
@Override
public void grantUriPermissionFromOwner(IBinder token, int fromUid, String targetPkg, Uri uri,
final int modeFlags, int sourceUserId, int targetUserId) {
targetUserId = mUserController.handleIncomingUser(Binder.getCallingPid(),
Binder.getCallingUid(), targetUserId, false, ALLOW_FULL_ONLY,
"grantUriPermissionFromOwner", null);
synchronized(this) {
UriPermissionOwner owner = UriPermissionOwner.fromExternalToken(token);
if (owner == null) {
throw new IllegalArgumentException("Unknown owner: " + token);
}
if (fromUid != Binder.getCallingUid()) {
if (Binder.getCallingUid() != myUid()) {
// Only system code can grant URI permissions on behalf
// of other users.
throw new SecurityException("nice try");
}
}
if (targetPkg == null) {
throw new IllegalArgumentException("null target");
}
if (uri == null) {
throw new IllegalArgumentException("null uri");
}
grantUriPermissionLocked(fromUid, targetPkg, new GrantUri(sourceUserId, uri, false),
modeFlags, owner, targetUserId);
}
}
/**
* @param uri This uri must NOT contain an embedded userId.
* @param userId The userId in which the uri is to be resolved.
*/
@Override
public void revokeUriPermissionFromOwner(IBinder token, Uri uri, int mode, int userId) {
synchronized(this) {
UriPermissionOwner owner = UriPermissionOwner.fromExternalToken(token);
if (owner == null) {
throw new IllegalArgumentException("Unknown owner: " + token);
}
if (uri == null) {
owner.removeUriPermissionsLocked(mode);
} else {
final boolean prefix = (mode & Intent.FLAG_GRANT_PREFIX_URI_PERMISSION) != 0;
owner.removeUriPermissionLocked(new GrantUri(userId, uri, prefix), mode);
}
}
}
private void schedulePersistUriGrants() {
if (!mHandler.hasMessages(PERSIST_URI_GRANTS_MSG)) {
mHandler.sendMessageDelayed(mHandler.obtainMessage(PERSIST_URI_GRANTS_MSG),
10 * DateUtils.SECOND_IN_MILLIS);
}
}
private void writeGrantedUriPermissions() {
if (DEBUG_URI_PERMISSION) Slog.v(TAG_URI_PERMISSION, "writeGrantedUriPermissions()");
// Snapshot permissions so we can persist without lock
ArrayList<UriPermission.Snapshot> persist = Lists.newArrayList();
synchronized (this) {
final int size = mGrantedUriPermissions.size();
for (int i = 0; i < size; i++) {
final ArrayMap<GrantUri, UriPermission> perms = mGrantedUriPermissions.valueAt(i);
for (UriPermission perm : perms.values()) {
if (perm.persistedModeFlags != 0) {
persist.add(perm.snapshot());
}
}
}
}
FileOutputStream fos = null;
try {
fos = mGrantFile.startWrite();
XmlSerializer out = new FastXmlSerializer();
out.setOutput(fos, StandardCharsets.UTF_8.name());
out.startDocument(null, true);
out.startTag(null, TAG_URI_GRANTS);
for (UriPermission.Snapshot perm : persist) {
out.startTag(null, TAG_URI_GRANT);
writeIntAttribute(out, ATTR_SOURCE_USER_ID, perm.uri.sourceUserId);
writeIntAttribute(out, ATTR_TARGET_USER_ID, perm.targetUserId);
out.attribute(null, ATTR_SOURCE_PKG, perm.sourcePkg);
out.attribute(null, ATTR_TARGET_PKG, perm.targetPkg);
out.attribute(null, ATTR_URI, String.valueOf(perm.uri.uri));
writeBooleanAttribute(out, ATTR_PREFIX, perm.uri.prefix);
writeIntAttribute(out, ATTR_MODE_FLAGS, perm.persistedModeFlags);
writeLongAttribute(out, ATTR_CREATED_TIME, perm.persistedCreateTime);
out.endTag(null, TAG_URI_GRANT);
}
out.endTag(null, TAG_URI_GRANTS);
out.endDocument();
mGrantFile.finishWrite(fos);
} catch (IOException e) {
if (fos != null) {
mGrantFile.failWrite(fos);
}
}
}
private void readGrantedUriPermissionsLocked() {
if (DEBUG_URI_PERMISSION) Slog.v(TAG_URI_PERMISSION, "readGrantedUriPermissions()");
final long now = System.currentTimeMillis();
FileInputStream fis = null;
try {
fis = mGrantFile.openRead();
final XmlPullParser in = Xml.newPullParser();
in.setInput(fis, StandardCharsets.UTF_8.name());
int type;
while ((type = in.next()) != END_DOCUMENT) {
final String tag = in.getName();
if (type == START_TAG) {
if (TAG_URI_GRANT.equals(tag)) {
final int sourceUserId;
final int targetUserId;
final int userHandle = readIntAttribute(in,
ATTR_USER_HANDLE, UserHandle.USER_NULL);
if (userHandle != UserHandle.USER_NULL) {
// For backwards compatibility.
sourceUserId = userHandle;
targetUserId = userHandle;
} else {
sourceUserId = readIntAttribute(in, ATTR_SOURCE_USER_ID);
targetUserId = readIntAttribute(in, ATTR_TARGET_USER_ID);
}
final String sourcePkg = in.getAttributeValue(null, ATTR_SOURCE_PKG);
final String targetPkg = in.getAttributeValue(null, ATTR_TARGET_PKG);
final Uri uri = Uri.parse(in.getAttributeValue(null, ATTR_URI));
final boolean prefix = readBooleanAttribute(in, ATTR_PREFIX);
final int modeFlags = readIntAttribute(in, ATTR_MODE_FLAGS);
final long createdTime = readLongAttribute(in, ATTR_CREATED_TIME, now);
// Sanity check that provider still belongs to source package
// Both direct boot aware and unaware packages are fine as we
// will do filtering at query time to avoid multiple parsing.
final ProviderInfo pi = getProviderInfoLocked(
uri.getAuthority(), sourceUserId, MATCH_DIRECT_BOOT_AWARE
| MATCH_DIRECT_BOOT_UNAWARE);
if (pi != null && sourcePkg.equals(pi.packageName)) {
int targetUid = -1;
try {
targetUid = AppGlobals.getPackageManager().getPackageUid(
targetPkg, MATCH_UNINSTALLED_PACKAGES, targetUserId);
} catch (RemoteException e) {
}
if (targetUid != -1) {
final UriPermission perm = findOrCreateUriPermissionLocked(
sourcePkg, targetPkg, targetUid,
new GrantUri(sourceUserId, uri, prefix));
perm.initPersistedModes(modeFlags, createdTime);
}
} else {
Slog.w(TAG, "Persisted grant for " + uri + " had source " + sourcePkg
+ " but instead found " + pi);
}
}
}
}
} catch (FileNotFoundException e) {
// Missing grants is okay
} catch (IOException e) {
Slog.wtf(TAG, "Failed reading Uri grants", e);
} catch (XmlPullParserException e) {
Slog.wtf(TAG, "Failed reading Uri grants", e);
} finally {
IoUtils.closeQuietly(fis);
}
}
/**
* @param uri This uri must NOT contain an embedded userId.
* @param userId The userId in which the uri is to be resolved.
*/
@Override
public void takePersistableUriPermission(Uri uri, final int modeFlags, int userId) {
enforceNotIsolatedCaller("takePersistableUriPermission");
Preconditions.checkFlagsArgument(modeFlags,
Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
synchronized (this) {
final int callingUid = Binder.getCallingUid();
boolean persistChanged = false;
GrantUri grantUri = new GrantUri(userId, uri, false);
UriPermission exactPerm = findUriPermissionLocked(callingUid,
new GrantUri(userId, uri, false));
UriPermission prefixPerm = findUriPermissionLocked(callingUid,
new GrantUri(userId, uri, true));
final boolean exactValid = (exactPerm != null)
&& ((modeFlags & exactPerm.persistableModeFlags) == modeFlags);
final boolean prefixValid = (prefixPerm != null)
&& ((modeFlags & prefixPerm.persistableModeFlags) == modeFlags);
if (!(exactValid || prefixValid)) {
throw new SecurityException("No persistable permission grants found for UID "
+ callingUid + " and Uri " + grantUri.toSafeString());
}
if (exactValid) {
persistChanged |= exactPerm.takePersistableModes(modeFlags);
}
if (prefixValid) {
persistChanged |= prefixPerm.takePersistableModes(modeFlags);
}
persistChanged |= maybePrunePersistedUriGrantsLocked(callingUid);
if (persistChanged) {
schedulePersistUriGrants();
}
}
}
/**
* @param uri This uri must NOT contain an embedded userId.
* @param userId The userId in which the uri is to be resolved.
*/
@Override
public void releasePersistableUriPermission(Uri uri, final int modeFlags, int userId) {
enforceNotIsolatedCaller("releasePersistableUriPermission");
Preconditions.checkFlagsArgument(modeFlags,
Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
synchronized (this) {
final int callingUid = Binder.getCallingUid();
boolean persistChanged = false;
UriPermission exactPerm = findUriPermissionLocked(callingUid,
new GrantUri(userId, uri, false));
UriPermission prefixPerm = findUriPermissionLocked(callingUid,
new GrantUri(userId, uri, true));
if (exactPerm == null && prefixPerm == null) {
throw new SecurityException("No permission grants found for UID " + callingUid
+ " and Uri " + uri.toSafeString());
}
if (exactPerm != null) {
persistChanged |= exactPerm.releasePersistableModes(modeFlags);
removeUriPermissionIfNeededLocked(exactPerm);
}
if (prefixPerm != null) {
persistChanged |= prefixPerm.releasePersistableModes(modeFlags);
removeUriPermissionIfNeededLocked(prefixPerm);
}
if (persistChanged) {
schedulePersistUriGrants();
}
}
}
/**
* Prune any older {@link UriPermission} for the given UID until outstanding
* persisted grants are below {@link #MAX_PERSISTED_URI_GRANTS}.
*
* @return if any mutations occured that require persisting.
*/
private boolean maybePrunePersistedUriGrantsLocked(int uid) {
final ArrayMap<GrantUri, UriPermission> perms = mGrantedUriPermissions.get(uid);
if (perms == null) return false;
if (perms.size() < MAX_PERSISTED_URI_GRANTS) return false;
final ArrayList<UriPermission> persisted = Lists.newArrayList();
for (UriPermission perm : perms.values()) {
if (perm.persistedModeFlags != 0) {
persisted.add(perm);
}
}
final int trimCount = persisted.size() - MAX_PERSISTED_URI_GRANTS;
if (trimCount <= 0) return false;
Collections.sort(persisted, new UriPermission.PersistedTimeComparator());
for (int i = 0; i < trimCount; i++) {
final UriPermission perm = persisted.get(i);
if (DEBUG_URI_PERMISSION) Slog.v(TAG_URI_PERMISSION,
"Trimming grant created at " + perm.persistedCreateTime);
perm.releasePersistableModes(~0);
removeUriPermissionIfNeededLocked(perm);
}
return true;
}
@Override
public ParceledListSlice<android.content.UriPermission> getPersistedUriPermissions(
String packageName, boolean incoming) {
enforceNotIsolatedCaller("getPersistedUriPermissions");
Preconditions.checkNotNull(packageName, "packageName");
final int callingUid = Binder.getCallingUid();
final int callingUserId = UserHandle.getUserId(callingUid);
final IPackageManager pm = AppGlobals.getPackageManager();
try {
final int packageUid = pm.getPackageUid(packageName,
MATCH_DIRECT_BOOT_AWARE | MATCH_DIRECT_BOOT_UNAWARE, callingUserId);
if (packageUid != callingUid) {
throw new SecurityException(
"Package " + packageName + " does not belong to calling UID " + callingUid);
}
} catch (RemoteException e) {
throw new SecurityException("Failed to verify package name ownership");
}
final ArrayList<android.content.UriPermission> result = Lists.newArrayList();
synchronized (this) {
if (incoming) {
final ArrayMap<GrantUri, UriPermission> perms = mGrantedUriPermissions.get(
callingUid);
if (perms == null) {
Slog.w(TAG, "No permission grants found for " + packageName);
} else {
for (UriPermission perm : perms.values()) {
if (packageName.equals(perm.targetPkg) && perm.persistedModeFlags != 0) {
result.add(perm.buildPersistedPublicApiObject());
}
}
}
} else {
final int size = mGrantedUriPermissions.size();
for (int i = 0; i < size; i++) {
final ArrayMap<GrantUri, UriPermission> perms =
mGrantedUriPermissions.valueAt(i);
for (UriPermission perm : perms.values()) {
if (packageName.equals(perm.sourcePkg) && perm.persistedModeFlags != 0) {
result.add(perm.buildPersistedPublicApiObject());
}
}
}
}
}
return new ParceledListSlice<android.content.UriPermission>(result);
}
@Override
public ParceledListSlice<android.content.UriPermission> getGrantedUriPermissions(
String packageName, int userId) {
enforceCallingPermission(android.Manifest.permission.GET_APP_GRANTED_URI_PERMISSIONS,
"getGrantedUriPermissions");
final ArrayList<android.content.UriPermission> result = Lists.newArrayList();
synchronized (this) {
final int size = mGrantedUriPermissions.size();
for (int i = 0; i < size; i++) {
final ArrayMap<GrantUri, UriPermission> perms = mGrantedUriPermissions.valueAt(i);
for (UriPermission perm : perms.values()) {
if (packageName.equals(perm.targetPkg) && perm.targetUserId == userId
&& perm.persistedModeFlags != 0) {
result.add(perm.buildPersistedPublicApiObject());
}
}
}
}
return new ParceledListSlice<android.content.UriPermission>(result);
}
@Override
public void clearGrantedUriPermissions(String packageName, int userId) {
enforceCallingPermission(android.Manifest.permission.CLEAR_APP_GRANTED_URI_PERMISSIONS,
"clearGrantedUriPermissions");
removeUriPermissionsForPackageLocked(packageName, userId, true);
}
@Override
public void showWaitingForDebugger(IApplicationThread who, boolean waiting) {
synchronized (this) {
ProcessRecord app =
who != null ? getRecordForAppLocked(who) : null;
if (app == null) return;
Message msg = Message.obtain();
msg.what = WAIT_FOR_DEBUGGER_UI_MSG;
msg.obj = app;
msg.arg1 = waiting ? 1 : 0;
mUiHandler.sendMessage(msg);
}
}
@Override
public void getMemoryInfo(ActivityManager.MemoryInfo outInfo) {
final long homeAppMem = mProcessList.getMemLevel(ProcessList.HOME_APP_ADJ);
final long cachedAppMem = mProcessList.getMemLevel(ProcessList.CACHED_APP_MIN_ADJ);
outInfo.availMem = getFreeMemory();
outInfo.totalMem = getTotalMemory();
outInfo.threshold = homeAppMem;
outInfo.lowMemory = outInfo.availMem < (homeAppMem + ((cachedAppMem-homeAppMem)/2));
outInfo.hiddenAppThreshold = cachedAppMem;
outInfo.secondaryServerThreshold = mProcessList.getMemLevel(
ProcessList.SERVICE_ADJ);
outInfo.visibleAppThreshold = mProcessList.getMemLevel(
ProcessList.VISIBLE_APP_ADJ);
outInfo.foregroundAppThreshold = mProcessList.getMemLevel(
ProcessList.FOREGROUND_APP_ADJ);
}
// =========================================================
// TASK MANAGEMENT
// =========================================================
@Override
public List<IBinder> getAppTasks(String callingPackage) {
int callingUid = Binder.getCallingUid();
long ident = Binder.clearCallingIdentity();
try {
synchronized(this) {
return mRecentTasks.getAppTasksList(callingUid, callingPackage);
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
@Override
public List<RunningTaskInfo> getTasks(int maxNum) {
return getFilteredTasks(maxNum, ACTIVITY_TYPE_UNDEFINED, WINDOWING_MODE_UNDEFINED);
}
@Override
public List<RunningTaskInfo> getFilteredTasks(int maxNum, @ActivityType int ignoreActivityType,
@WindowingMode int ignoreWindowingMode) {
final int callingUid = Binder.getCallingUid();
ArrayList<RunningTaskInfo> list = new ArrayList<>();
synchronized(this) {
if (DEBUG_ALL) Slog.v(TAG, "getTasks: max=" + maxNum);
final boolean allowed = isGetTasksAllowed("getTasks", Binder.getCallingPid(),
callingUid);
mStackSupervisor.getRunningTasks(maxNum, list, ignoreActivityType,
ignoreWindowingMode, callingUid, allowed);
}
return list;
}
private boolean isGetTasksAllowed(String caller, int callingPid, int callingUid) {
if (mRecentTasks.isCallerRecents(callingUid)) {
// Always allow the recents component to get tasks
return true;
}
boolean allowed = checkPermission(android.Manifest.permission.REAL_GET_TASKS,
callingPid, callingUid) == PackageManager.PERMISSION_GRANTED;
if (!allowed) {
if (checkPermission(android.Manifest.permission.GET_TASKS,
callingPid, callingUid) == PackageManager.PERMISSION_GRANTED) {
// Temporary compatibility: some existing apps on the system image may
// still be requesting the old permission and not switched to the new
// one; if so, we'll still allow them full access. This means we need
// to see if they are holding the old permission and are a system app.
try {
if (AppGlobals.getPackageManager().isUidPrivileged(callingUid)) {
allowed = true;
if (DEBUG_TASKS) Slog.w(TAG, caller + ": caller " + callingUid
+ " is using old GET_TASKS but privileged; allowing");
}
} catch (RemoteException e) {
}
}
}
if (!allowed) {
if (DEBUG_TASKS) Slog.w(TAG, caller + ": caller " + callingUid
+ " does not hold REAL_GET_TASKS; limiting output");
}
return allowed;
}
@Override
public ParceledListSlice<ActivityManager.RecentTaskInfo> getRecentTasks(int maxNum, int flags,
int userId) {
final int callingUid = Binder.getCallingUid();
userId = mUserController.handleIncomingUser(Binder.getCallingPid(), callingUid, userId,
false, ALLOW_FULL_ONLY, "getRecentTasks", null);
final boolean allowed = isGetTasksAllowed("getRecentTasks", Binder.getCallingPid(),
callingUid);
final boolean detailed = checkCallingPermission(
android.Manifest.permission.GET_DETAILED_TASKS)
== PackageManager.PERMISSION_GRANTED;
synchronized (this) {
return mRecentTasks.getRecentTasks(maxNum, flags, allowed, detailed, userId,
callingUid);
}
}
@Override
public ActivityManager.TaskDescription getTaskDescription(int id) {
synchronized (this) {
enforceCallerIsRecentsOrHasPermission(MANAGE_ACTIVITY_STACKS, "getTaskDescription()");
final TaskRecord tr = mStackSupervisor.anyTaskForIdLocked(id,
MATCH_TASK_IN_STACKS_OR_RECENT_TASKS);
if (tr != null) {
return tr.lastTaskDescription;
}
}
return null;
}
@Override
public int addAppTask(IBinder activityToken, Intent intent,
ActivityManager.TaskDescription description, Bitmap thumbnail) throws RemoteException {
final int callingUid = Binder.getCallingUid();
final long callingIdent = Binder.clearCallingIdentity();
try {
synchronized (this) {
ActivityRecord r = ActivityRecord.isInStackLocked(activityToken);
if (r == null) {
throw new IllegalArgumentException("Activity does not exist; token="
+ activityToken);
}
ComponentName comp = intent.getComponent();
if (comp == null) {
throw new IllegalArgumentException("Intent " + intent
+ " must specify explicit component");
}
if (thumbnail.getWidth() != mThumbnailWidth
|| thumbnail.getHeight() != mThumbnailHeight) {
throw new IllegalArgumentException("Bad thumbnail size: got "
+ thumbnail.getWidth() + "x" + thumbnail.getHeight() + ", require "
+ mThumbnailWidth + "x" + mThumbnailHeight);
}
if (intent.getSelector() != null) {
intent.setSelector(null);
}
if (intent.getSourceBounds() != null) {
intent.setSourceBounds(null);
}
if ((intent.getFlags()&Intent.FLAG_ACTIVITY_NEW_DOCUMENT) != 0) {
if ((intent.getFlags()&Intent.FLAG_ACTIVITY_RETAIN_IN_RECENTS) == 0) {
// The caller has added this as an auto-remove task... that makes no
// sense, so turn off auto-remove.
intent.addFlags(Intent.FLAG_ACTIVITY_RETAIN_IN_RECENTS);
}
}
if (!comp.equals(mLastAddedTaskComponent) || callingUid != mLastAddedTaskUid) {
mLastAddedTaskActivity = null;
}
ActivityInfo ainfo = mLastAddedTaskActivity;
if (ainfo == null) {
ainfo = mLastAddedTaskActivity = AppGlobals.getPackageManager().getActivityInfo(
comp, 0, UserHandle.getUserId(callingUid));
if (ainfo.applicationInfo.uid != callingUid) {
throw new SecurityException(
"Can't add task for another application: target uid="
+ ainfo.applicationInfo.uid + ", calling uid=" + callingUid);
}
}
TaskRecord task = new TaskRecord(this,
mStackSupervisor.getNextTaskIdForUserLocked(r.userId),
ainfo, intent, description);
if (!mRecentTasks.addToBottom(task)) {
return INVALID_TASK_ID;
}
r.getStack().addTask(task, !ON_TOP, "addAppTask");
// TODO: Send the thumbnail to WM to store it.
return task.taskId;
}
} finally {
Binder.restoreCallingIdentity(callingIdent);
}
}
@Override
public Point getAppTaskThumbnailSize() {
synchronized (this) {
return new Point(mThumbnailWidth, mThumbnailHeight);
}
}
@Override
public void setTaskDescription(IBinder token, ActivityManager.TaskDescription td) {
synchronized (this) {
ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r != null) {
r.setTaskDescription(td);
final TaskRecord task = r.getTask();
task.updateTaskDescription();
mTaskChangeNotificationController.notifyTaskDescriptionChanged(task.taskId, td);
}
}
}
@Override
public void setTaskResizeable(int taskId, int resizeableMode) {
synchronized (this) {
final TaskRecord task = mStackSupervisor.anyTaskForIdLocked(
taskId, MATCH_TASK_IN_STACKS_OR_RECENT_TASKS);
if (task == null) {
Slog.w(TAG, "setTaskResizeable: taskId=" + taskId + " not found");
return;
}
task.setResizeMode(resizeableMode);
}
}
@Override
public void resizeTask(int taskId, Rect bounds, int resizeMode) {
enforceCallingPermission(MANAGE_ACTIVITY_STACKS, "resizeTask()");
long ident = Binder.clearCallingIdentity();
try {
synchronized (this) {
TaskRecord task = mStackSupervisor.anyTaskForIdLocked(taskId);
if (task == null) {
Slog.w(TAG, "resizeTask: taskId=" + taskId + " not found");
return;
}
// Place the task in the right stack if it isn't there already based on
// the requested bounds.
// The stack transition logic is:
// - a null bounds on a freeform task moves that task to fullscreen
// - a non-null bounds on a non-freeform (fullscreen OR docked) task moves
// that task to freeform
// - otherwise the task is not moved
ActivityStack stack = task.getStack();
if (!task.getWindowConfiguration().canResizeTask()) {
throw new IllegalArgumentException("resizeTask not allowed on task=" + task);
}
if (bounds == null && stack.getWindowingMode() == WINDOWING_MODE_FREEFORM) {
stack = stack.getDisplay().getOrCreateStack(
WINDOWING_MODE_FULLSCREEN, stack.getActivityType(), ON_TOP);
} else if (bounds != null && stack.getWindowingMode() != WINDOWING_MODE_FREEFORM) {
stack = stack.getDisplay().getOrCreateStack(
WINDOWING_MODE_FREEFORM, stack.getActivityType(), ON_TOP);
}
// Reparent the task to the right stack if necessary
boolean preserveWindow = (resizeMode & RESIZE_MODE_PRESERVE_WINDOW) != 0;
if (stack != task.getStack()) {
// Defer resume until the task is resized below
task.reparent(stack, ON_TOP, REPARENT_KEEP_STACK_AT_FRONT, ANIMATE,
DEFER_RESUME, "resizeTask");
preserveWindow = false;
}
// After reparenting (which only resizes the task to the stack bounds), resize the
// task to the actual bounds provided
task.resize(bounds, resizeMode, preserveWindow, !DEFER_RESUME);
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
@Override
public Rect getTaskBounds(int taskId) {
enforceCallingPermission(MANAGE_ACTIVITY_STACKS, "getTaskBounds()");
long ident = Binder.clearCallingIdentity();
Rect rect = new Rect();
try {
synchronized (this) {
final TaskRecord task = mStackSupervisor.anyTaskForIdLocked(taskId,
MATCH_TASK_IN_STACKS_OR_RECENT_TASKS);
if (task == null) {
Slog.w(TAG, "getTaskBounds: taskId=" + taskId + " not found");
return rect;
}
if (task.getStack() != null) {
// Return the bounds from window manager since it will be adjusted for various
// things like the presense of a docked stack for tasks that aren't resizeable.
task.getWindowContainerBounds(rect);
} else {
// Task isn't in window manager yet since it isn't associated with a stack.
// Return the persist value from activity manager
if (task.mBounds != null) {
rect.set(task.mBounds);
} else if (task.mLastNonFullscreenBounds != null) {
rect.set(task.mLastNonFullscreenBounds);
}
}
}
} finally {
Binder.restoreCallingIdentity(ident);
}
return rect;
}
@Override
public void cancelTaskWindowTransition(int taskId) {
enforceCallerIsRecentsOrHasPermission(MANAGE_ACTIVITY_STACKS,
"cancelTaskWindowTransition()");
final long ident = Binder.clearCallingIdentity();
try {
synchronized (this) {
final TaskRecord task = mStackSupervisor.anyTaskForIdLocked(taskId,
MATCH_TASK_IN_STACKS_ONLY);
if (task == null) {
Slog.w(TAG, "cancelTaskWindowTransition: taskId=" + taskId + " not found");
return;
}
task.cancelWindowTransition();
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
@Override
public void cancelTaskThumbnailTransition(int taskId) {
enforceCallerIsRecentsOrHasPermission(MANAGE_ACTIVITY_STACKS,
"cancelTaskThumbnailTransition()");
final long ident = Binder.clearCallingIdentity();
try {
synchronized (this) {
final TaskRecord task = mStackSupervisor.anyTaskForIdLocked(taskId,
MATCH_TASK_IN_STACKS_ONLY);
if (task == null) {
Slog.w(TAG, "cancelTaskThumbnailTransition: taskId=" + taskId + " not found");
return;
}
task.cancelThumbnailTransition();
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
@Override
public TaskSnapshot getTaskSnapshot(int taskId, boolean reducedResolution) {
enforceCallerIsRecentsOrHasPermission(READ_FRAME_BUFFER, "getTaskSnapshot()");
final long ident = Binder.clearCallingIdentity();
try {
final TaskRecord task;
synchronized (this) {
task = mStackSupervisor.anyTaskForIdLocked(taskId,
MATCH_TASK_IN_STACKS_OR_RECENT_TASKS);
if (task == null) {
Slog.w(TAG, "getTaskSnapshot: taskId=" + taskId + " not found");
return null;
}
}
// Don't call this while holding the lock as this operation might hit the disk.
return task.getSnapshot(reducedResolution);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
@Override
public Bitmap getTaskDescriptionIcon(String filePath, int userId) {
if (userId != UserHandle.getCallingUserId()) {
enforceCallingPermission(android.Manifest.permission.INTERACT_ACROSS_USERS_FULL,
"getTaskDescriptionIcon");
}
final File passedIconFile = new File(filePath);
final File legitIconFile = new File(TaskPersister.getUserImagesDir(userId),
passedIconFile.getName());
if (!legitIconFile.getPath().equals(filePath)
|| !filePath.contains(ActivityRecord.ACTIVITY_ICON_SUFFIX)) {
throw new IllegalArgumentException("Bad file path: " + filePath
+ " passed for userId " + userId);
}
return mRecentTasks.getTaskDescriptionIcon(filePath);
}
@Override
public void startInPlaceAnimationOnFrontMostApplication(Bundle opts)
throws RemoteException {
final ActivityOptions activityOptions = ActivityOptions.fromBundle(opts);
if (activityOptions.getAnimationType() != ActivityOptions.ANIM_CUSTOM_IN_PLACE ||
activityOptions.getCustomInPlaceResId() == 0) {
throw new IllegalArgumentException("Expected in-place ActivityOption " +
"with valid animation");
}
mWindowManager.prepareAppTransition(TRANSIT_TASK_IN_PLACE, false);
mWindowManager.overridePendingAppTransitionInPlace(activityOptions.getPackageName(),
activityOptions.getCustomInPlaceResId());
mWindowManager.executeAppTransition();
}
@Override
public void removeStack(int stackId) {
enforceCallerIsRecentsOrHasPermission(MANAGE_ACTIVITY_STACKS, "removeStack()");
synchronized (this) {
final long ident = Binder.clearCallingIdentity();
try {
final ActivityStack stack = mStackSupervisor.getStack(stackId);
if (stack == null) {
Slog.w(TAG, "removeStack: No stack with id=" + stackId);
return;
}
if (!stack.isActivityTypeStandardOrUndefined()) {
throw new IllegalArgumentException(
"Removing non-standard stack is not allowed.");
}
mStackSupervisor.removeStack(stack);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
/**
* Removes stacks in the input windowing modes from the system if they are of activity type
* ACTIVITY_TYPE_STANDARD or ACTIVITY_TYPE_UNDEFINED
*/
@Override
public void removeStacksInWindowingModes(int[] windowingModes) {
enforceCallerIsRecentsOrHasPermission(MANAGE_ACTIVITY_STACKS,
"removeStacksInWindowingModes()");
synchronized (this) {
final long ident = Binder.clearCallingIdentity();
try {
mStackSupervisor.removeStacksInWindowingModes(windowingModes);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
@Override
public void removeStacksWithActivityTypes(int[] activityTypes) {
enforceCallerIsRecentsOrHasPermission(MANAGE_ACTIVITY_STACKS,
"removeStacksWithActivityTypes()");
synchronized (this) {
final long ident = Binder.clearCallingIdentity();
try {
mStackSupervisor.removeStacksWithActivityTypes(activityTypes);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
@Override
public void moveStackToDisplay(int stackId, int displayId) {
enforceCallingPermission(INTERNAL_SYSTEM_WINDOW, "moveStackToDisplay()");
synchronized (this) {
final long ident = Binder.clearCallingIdentity();
try {
if (DEBUG_STACK) Slog.d(TAG_STACK, "moveStackToDisplay: moving stackId=" + stackId
+ " to displayId=" + displayId);
mStackSupervisor.moveStackToDisplayLocked(stackId, displayId, ON_TOP);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
@Override
public boolean removeTask(int taskId) {
enforceCallerIsRecentsOrHasPermission(REMOVE_TASKS, "removeTask()");
synchronized (this) {
final long ident = Binder.clearCallingIdentity();
try {
return mStackSupervisor.removeTaskByIdLocked(taskId, true, REMOVE_FROM_RECENTS);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
/**
* TODO: Add mController hook
*/
@Override
public void moveTaskToFront(int taskId, int flags, Bundle bOptions) {
enforceCallingPermission(android.Manifest.permission.REORDER_TASKS, "moveTaskToFront()");
if (DEBUG_STACK) Slog.d(TAG_STACK, "moveTaskToFront: moving taskId=" + taskId);
synchronized(this) {
moveTaskToFrontLocked(taskId, flags, bOptions, false /* fromRecents */);
}
}
void moveTaskToFrontLocked(int taskId, int flags, Bundle bOptions, boolean fromRecents) {
ActivityOptions options = ActivityOptions.fromBundle(bOptions);
if (!checkAppSwitchAllowedLocked(Binder.getCallingPid(),
Binder.getCallingUid(), -1, -1, "Task to front")) {
ActivityOptions.abort(options);
return;
}
final long origId = Binder.clearCallingIdentity();
try {
final TaskRecord task = mStackSupervisor.anyTaskForIdLocked(taskId);
if (task == null) {
Slog.d(TAG, "Could not find task for id: "+ taskId);
return;
}
if (mLockTaskController.isLockTaskModeViolation(task)) {
Slog.e(TAG, "moveTaskToFront: Attempt to violate Lock Task Mode");
return;
}
mStackSupervisor.findTaskToMoveToFront(task, flags, options, "moveTaskToFront",
false /* forceNonResizable */);
final ActivityRecord topActivity = task.getTopActivity();
if (topActivity != null) {
// We are reshowing a task, use a starting window to hide the initial draw delay
// so the transition can start earlier.
topActivity.showStartingWindow(null /* prev */, false /* newTask */,
true /* taskSwitch */, fromRecents);
}
} finally {
Binder.restoreCallingIdentity(origId);
}
ActivityOptions.abort(options);
}
/**
* Attempts to move a task backwards in z-order (the order of activities within the task is
* unchanged).
*
* There are several possible results of this call:
* - if the task is locked, then we will show the lock toast
* - if there is a task behind the provided task, then that task is made visible and resumed as
* this task is moved to the back
* - otherwise, if there are no other tasks in the stack:
* - if this task is in the pinned stack, then we remove the stack completely, which will
* have the effect of moving the task to the top or bottom of the fullscreen stack
* (depending on whether it is visible)
* - otherwise, we simply return home and hide this task
*
* @param token A reference to the activity we wish to move
* @param nonRoot If false then this only works if the activity is the root
* of a task; if true it will work for any activity in a task.
* @return Returns true if the move completed, false if not.
*/
@Override
public boolean moveActivityTaskToBack(IBinder token, boolean nonRoot) {
enforceNotIsolatedCaller("moveActivityTaskToBack");
synchronized(this) {
final long origId = Binder.clearCallingIdentity();
try {
int taskId = ActivityRecord.getTaskForActivityLocked(token, !nonRoot);
final TaskRecord task = mStackSupervisor.anyTaskForIdLocked(taskId);
if (task != null) {
return ActivityRecord.getStackLocked(token).moveTaskToBackLocked(taskId);
}
} finally {
Binder.restoreCallingIdentity(origId);
}
}
return false;
}
@Override
public void moveTaskBackwards(int task) {
enforceCallingPermission(android.Manifest.permission.REORDER_TASKS,
"moveTaskBackwards()");
synchronized(this) {
if (!checkAppSwitchAllowedLocked(Binder.getCallingPid(),
Binder.getCallingUid(), -1, -1, "Task backwards")) {
return;
}
final long origId = Binder.clearCallingIdentity();
moveTaskBackwardsLocked(task);
Binder.restoreCallingIdentity(origId);
}
}
private final void moveTaskBackwardsLocked(int task) {
Slog.e(TAG, "moveTaskBackwards not yet implemented!");
}
@Override
public int createStackOnDisplay(int displayId) throws RemoteException {
enforceCallingPermission(MANAGE_ACTIVITY_STACKS, "createStackOnDisplay()");
synchronized (this) {
final ActivityDisplay display =
mStackSupervisor.getActivityDisplayOrCreateLocked(displayId);
if (display == null) {
return INVALID_STACK_ID;
}
// TODO(multi-display): Have the caller pass in the windowing mode and activity type.
final ActivityStack stack = display.createStack(
WINDOWING_MODE_FULLSCREEN_OR_SPLIT_SCREEN_SECONDARY, ACTIVITY_TYPE_STANDARD,
ON_TOP);
return (stack != null) ? stack.mStackId : INVALID_STACK_ID;
}
}
@Override
public int getActivityDisplayId(IBinder activityToken) throws RemoteException {
synchronized (this) {
final ActivityStack stack = ActivityRecord.getStackLocked(activityToken);
if (stack != null && stack.mDisplayId != INVALID_DISPLAY) {
return stack.mDisplayId;
}
return DEFAULT_DISPLAY;
}
}
@Override
public void exitFreeformMode(IBinder token) throws RemoteException {
synchronized (this) {
long ident = Binder.clearCallingIdentity();
try {
final ActivityRecord r = ActivityRecord.forTokenLocked(token);
if (r == null) {
throw new IllegalArgumentException(
"exitFreeformMode: No activity record matching token=" + token);
}
final ActivityStack stack = r.getStack();
if (stack == null || !stack.inFreeformWindowingMode()) {
throw new IllegalStateException(
"exitFreeformMode: You can only go fullscreen from freeform.");
}
final ActivityStack fullscreenStack = stack.getDisplay().getOrCreateStack(
WINDOWING_MODE_FULLSCREEN, stack.getActivityType(), ON_TOP);
if (DEBUG_STACK) Slog.d(TAG_STACK, "exitFreeformMode: " + r);
// TODO: Should just change windowing mode vs. re-parenting...
r.getTask().reparent(fullscreenStack, ON_TOP,
REPARENT_KEEP_STACK_AT_FRONT, ANIMATE, !DEFER_RESUME, "exitFreeformMode");
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
@Override
public void setTaskWindowingMode(int taskId, int windowingMode, boolean toTop) {
enforceCallerIsRecentsOrHasPermission(MANAGE_ACTIVITY_STACKS, "setTaskWindowingMode()");
synchronized (this) {
final long ident = Binder.clearCallingIdentity();
try {
final TaskRecord task = mStackSupervisor.anyTaskForIdLocked(taskId);
if (task == null) {
Slog.w(TAG, "setTaskWindowingMode: No task for id=" + taskId);
return;
}
if (DEBUG_STACK) Slog.d(TAG_STACK, "setTaskWindowingMode: moving task=" + taskId
+ " to windowingMode=" + windowingMode + " toTop=" + toTop);
if (windowingMode == WINDOWING_MODE_SPLIT_SCREEN_PRIMARY) {
mWindowManager.setDockedStackCreateState(DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT,
null /* initialBounds */);
}
if (!task.isActivityTypeStandardOrUndefined()) {
throw new IllegalArgumentException("setTaskWindowingMode: Attempt to move task "
+ taskId + " to non-standard windowin mode=" + windowingMode);
}
final ActivityDisplay display = task.getStack().getDisplay();
final ActivityStack stack = display.getOrCreateStack(windowingMode,
task.getStack().getActivityType(), toTop);
// TODO: We should just change the windowing mode for the task vs. creating and
// moving it to a stack.
task.reparent(stack, toTop, REPARENT_KEEP_STACK_AT_FRONT, ANIMATE, !DEFER_RESUME,
"moveTaskToStack");
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
@Override
public void moveTaskToStack(int taskId, int stackId, boolean toTop) {
enforceCallerIsRecentsOrHasPermission(MANAGE_ACTIVITY_STACKS, "moveTaskToStack()");
synchronized (this) {
long ident = Binder.clearCallingIdentity();
try {
final TaskRecord task = mStackSupervisor.anyTaskForIdLocked(taskId);
if (task == null) {
Slog.w(TAG, "moveTaskToStack: No task for id=" + taskId);
return;
}
if (DEBUG_STACK) Slog.d(TAG_STACK, "moveTaskToStack: moving task=" + taskId
+ " to stackId=" + stackId + " toTop=" + toTop);
final ActivityStack stack = mStackSupervisor.getStack(stackId);
if (stack == null) {
throw new IllegalStateException(
"moveTaskToStack: No stack for stackId=" + stackId);
}
if (!stack.isActivityTypeStandardOrUndefined()) {
throw new IllegalArgumentException("moveTaskToStack: Attempt to move task "
+ taskId + " to stack " + stackId);
}
if (stack.inSplitScreenPrimaryWindowingMode()) {
mWindowManager.setDockedStackCreateState(
DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT, null /* initialBounds */);
}
task.reparent(stack, toTop, REPARENT_KEEP_STACK_AT_FRONT, ANIMATE, !DEFER_RESUME,
"moveTaskToStack");
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
/**
* Moves the input task to the docked stack.
*
* @param taskId Id of task to move.
* @param createMode The mode the docked stack should be created in if it doesn't exist
* already. See
* {@link android.app.ActivityManager#DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT}
* and
* {@link android.app.ActivityManager#DOCKED_STACK_CREATE_MODE_BOTTOM_OR_RIGHT}
* @param toTop If the task and stack should be moved to the top.
* @param animate Whether we should play an animation for the moving the task
* @param initialBounds If the docked stack gets created, it will use these bounds for the
* docked stack. Pass {@code null} to use default bounds.
*/
@Override
public boolean moveTaskToDockedStack(int taskId, int createMode, boolean toTop, boolean animate,
Rect initialBounds) {
enforceCallerIsRecentsOrHasPermission(MANAGE_ACTIVITY_STACKS, "moveTaskToDockedStack()");
synchronized (this) {
long ident = Binder.clearCallingIdentity();
try {
final TaskRecord task = mStackSupervisor.anyTaskForIdLocked(taskId);
if (task == null) {
Slog.w(TAG, "moveTaskToDockedStack: No task for id=" + taskId);
return false;
}
if (DEBUG_STACK) Slog.d(TAG_STACK, "moveTaskToDockedStack: moving task=" + taskId
+ " to createMode=" + createMode + " toTop=" + toTop);
mWindowManager.setDockedStackCreateState(createMode, initialBounds);
final ActivityDisplay display = task.getStack().getDisplay();
final ActivityStack stack = display.getOrCreateStack(
WINDOWING_MODE_SPLIT_SCREEN_PRIMARY, task.getStack().getActivityType(),
toTop);
// Defer resuming until we move the home stack to the front below
// TODO: Should just change windowing mode vs. re-parenting...
final boolean moved = task.reparent(stack, toTop,
REPARENT_KEEP_STACK_AT_FRONT, animate, !DEFER_RESUME,
"moveTaskToDockedStack");
if (moved) {
mStackSupervisor.ensureActivitiesVisibleLocked(null, 0, !PRESERVE_WINDOWS);
}
return moved;
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
/**
* Dismisses split-screen multi-window mode.
* @param toTop If true the current primary split-screen stack will be placed or left on top.
*/
@Override
public void dismissSplitScreenMode(boolean toTop) {
enforceCallerIsRecentsOrHasPermission(MANAGE_ACTIVITY_STACKS, "dismissSplitScreenMode()");
final long ident = Binder.clearCallingIdentity();
try {
synchronized (this) {
final ActivityStack stack =
mStackSupervisor.getDefaultDisplay().getSplitScreenPrimaryStack();
if (stack == null) {
Slog.w(TAG, "dismissSplitScreenMode: primary split-screen stack not found.");
return;
}
if (toTop) {
mStackSupervisor.resizeStackLocked(stack, null /* destBounds */,
null /* tempTaskBounds */, null /* tempTaskInsetBounds */,
true /* preserveWindows */, true /* allowResizeInDockedMode */,
!DEFER_RESUME);
} else {
mStackSupervisor.moveTasksToFullscreenStackLocked(stack, false /* onTop */);
}
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
/**
* Dismisses Pip
* @param animate True if the dismissal should be animated.
* @param animationDuration The duration of the resize animation in milliseconds or -1 if the
* default animation duration should be used.
*/
@Override
public void dismissPip(boolean animate, int animationDuration) {
enforceCallerIsRecentsOrHasPermission(MANAGE_ACTIVITY_STACKS, "dismissPip()");
final long ident = Binder.clearCallingIdentity();
try {
synchronized (this) {
final PinnedActivityStack stack =
mStackSupervisor.getDefaultDisplay().getPinnedStack();
if (stack == null) {
Slog.w(TAG, "dismissPip: pinned stack not found.");
return;
}
if (stack.getWindowingMode() != WINDOWING_MODE_PINNED) {
throw new IllegalArgumentException("Stack: " + stack
+ " doesn't support animated resize.");
}
if (animate) {
stack.animateResizePinnedStack(null /* sourceHintBounds */,
null /* destBounds */, animationDuration, false /* fromFullscreen */);
} else {
mStackSupervisor.moveTasksToFullscreenStackLocked(stack, true /* onTop */);
}
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
/**
* Moves the top activity in the input stackId to the pinned stack.
*
* @param stackId Id of stack to move the top activity to pinned stack.
* @param bounds Bounds to use for pinned stack.
*
* @return True if the top activity of the input stack was successfully moved to the pinned
* stack.
*/
@Override
public boolean moveTopActivityToPinnedStack(int stackId, Rect bounds) {
enforceCallerIsRecentsOrHasPermission(MANAGE_ACTIVITY_STACKS,
"moveTopActivityToPinnedStack()");
synchronized (this) {
if (!mSupportsPictureInPicture) {
throw new IllegalStateException("moveTopActivityToPinnedStack:"
+ "Device doesn't support picture-in-picture mode");
}
long ident = Binder.clearCallingIdentity();
try {
return mStackSupervisor.moveTopStackActivityToPinnedStackLocked(stackId, bounds);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
@Override
public void resizeStack(int stackId, Rect destBounds, boolean allowResizeInDockedMode,
boolean preserveWindows, boolean animate, int animationDuration) {
enforceCallerIsRecentsOrHasPermission(MANAGE_ACTIVITY_STACKS, "resizeStack()");
long ident = Binder.clearCallingIdentity();
try {
synchronized (this) {
if (animate) {
final PinnedActivityStack stack = mStackSupervisor.getStack(stackId);
if (stack == null) {
Slog.w(TAG, "resizeStack: stackId " + stackId + " not found.");
return;
}
if (stack.getWindowingMode() != WINDOWING_MODE_PINNED) {
throw new IllegalArgumentException("Stack: " + stackId
+ " doesn't support animated resize.");
}
stack.animateResizePinnedStack(null /* sourceHintBounds */, destBounds,
animationDuration, false /* fromFullscreen */);
} else {
final ActivityStack stack = mStackSupervisor.getStack(stackId);
if (stack == null) {
Slog.w(TAG, "resizeStack: stackId " + stackId + " not found.");
return;
}
mStackSupervisor.resizeStackLocked(stack, destBounds, null /* tempTaskBounds */,
null /* tempTaskInsetBounds */, preserveWindows,
allowResizeInDockedMode, !DEFER_RESUME);
}
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
@Override
public void resizeDockedStack(Rect dockedBounds, Rect tempDockedTaskBounds,
Rect tempDockedTaskInsetBounds,
Rect tempOtherTaskBounds, Rect tempOtherTaskInsetBounds) {
enforceCallerIsRecentsOrHasPermission(MANAGE_ACTIVITY_STACKS, "resizeDockedStack()");
long ident = Binder.clearCallingIdentity();
try {
synchronized (this) {
mStackSupervisor.resizeDockedStackLocked(dockedBounds, tempDockedTaskBounds,
tempDockedTaskInsetBounds, tempOtherTaskBounds, tempOtherTaskInsetBounds,
PRESERVE_WINDOWS);
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
@Override
public void resizePinnedStack(Rect pinnedBounds, Rect tempPinnedTaskBounds) {
enforceCallerIsRecentsOrHasPermission(MANAGE_ACTIVITY_STACKS, "resizePinnedStack()");
final long ident = Binder.clearCallingIdentity();
try {
synchronized (this) {
mStackSupervisor.resizePinnedStackLocked(pinnedBounds, tempPinnedTaskBounds);
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
/**
* Try to place task to provided position. The final position might be different depending on
* current user and stacks state. The task will be moved to target stack if it's currently in
* different stack.
*/
@Override
public void positionTaskInStack(int taskId, int stackId, int position) {
enforceCallingPermission(MANAGE_ACTIVITY_STACKS, "positionTaskInStack()");
synchronized (this) {
long ident = Binder.clearCallingIdentity();
try {
if (DEBUG_STACK) Slog.d(TAG_STACK, "positionTaskInStack: positioning task="
+ taskId + " in stackId=" + stackId + " at position=" + position);
final TaskRecord task = mStackSupervisor.anyTaskForIdLocked(taskId);
if (task == null) {
throw new IllegalArgumentException("positionTaskInStack: no task for id="
+ taskId);
}
final ActivityStack stack = mStackSupervisor.getStack(stackId);
if (stack == null) {
throw new IllegalArgumentException("positionTaskInStack: no stack for id="
+ stackId);
}
if (!stack.isActivityTypeStandardOrUndefined()) {
throw new IllegalArgumentException("positionTaskInStack: Attempt to change"
+ " the position of task " + taskId + " in/to non-standard stack");
}
// TODO: Have the callers of this API call a separate reparent method if that is
// what they intended to do vs. having this method also do reparenting.
if (task.getStack() == stack) {
// Change position in current stack.
stack.positionChildAt(task, position);
} else {
// Reparent to new stack.
task.reparent(stack, position, REPARENT_LEAVE_STACK_IN_PLACE, !ANIMATE,
!DEFER_RESUME, "positionTaskInStack");
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
@Override
public List<StackInfo> getAllStackInfos() {
enforceCallerIsRecentsOrHasPermission(MANAGE_ACTIVITY_STACKS, "getAllStackInfos()");
long ident = Binder.clearCallingIdentity();
try {
synchronized (this) {
return mStackSupervisor.getAllStackInfosLocked();
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
@Override
public StackInfo getStackInfo(int windowingMode, int activityType) {
enforceCallerIsRecentsOrHasPermission(MANAGE_ACTIVITY_STACKS, "getStackInfo()");
long ident = Binder.clearCallingIdentity();
try {
synchronized (this) {
return mStackSupervisor.getStackInfo(windowingMode, activityType);
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
@Override
public int getTaskForActivity(IBinder token, boolean onlyRoot) {
synchronized(this) {
return ActivityRecord.getTaskForActivityLocked(token, onlyRoot);
}
}
@Override
public void updateDeviceOwner(String packageName) {
final int callingUid = Binder.getCallingUid();
if (callingUid != 0 && callingUid != SYSTEM_UID) {
throw new SecurityException("updateDeviceOwner called from non-system process");
}
synchronized (this) {
mDeviceOwnerName = packageName;
}
}
@Override
public void updateLockTaskPackages(int userId, String[] packages) {
final int callingUid = Binder.getCallingUid();
if (callingUid != 0 && callingUid != SYSTEM_UID) {
enforceCallingPermission(android.Manifest.permission.UPDATE_LOCK_TASK_PACKAGES,
"updateLockTaskPackages()");
}
synchronized (this) {
if (DEBUG_LOCKTASK) Slog.w(TAG_LOCKTASK, "Whitelisting " + userId + ":" +
Arrays.toString(packages));
mLockTaskController.updateLockTaskPackages(userId, packages);
}
}
@Override
public void updateLockTaskFeatures(int userId, int flags) {
final int callingUid = Binder.getCallingUid();
if (callingUid != 0 && callingUid != SYSTEM_UID) {
enforceCallingPermission(android.Manifest.permission.UPDATE_LOCK_TASK_PACKAGES,
"updateLockTaskFeatures()");
}
synchronized (this) {
if (DEBUG_LOCKTASK) Slog.w(TAG_LOCKTASK, "Allowing features " + userId + ":0x" +
Integer.toHexString(flags));
mLockTaskController.updateLockTaskFeatures(userId, flags);
}
}
private void startLockTaskModeLocked(@Nullable TaskRecord task, boolean isAppPinning) {
if (DEBUG_LOCKTASK) Slog.w(TAG_LOCKTASK, "startLockTaskModeLocked: " + task);
if (task == null || task.mLockTaskAuth == LOCK_TASK_AUTH_DONT_LOCK) {
return;
}
final ActivityStack stack = mStackSupervisor.getFocusedStack();
if (stack == null || task != stack.topTask()) {
throw new IllegalArgumentException("Invalid task, not in foreground");
}
// When a task is locked, dismiss the pinned stack if it exists
mStackSupervisor.removeStacksInWindowingModes(WINDOWING_MODE_PINNED);
// isAppPinning is used to distinguish between locked and pinned mode, as pinned mode
// is initiated by system after the pinning request was shown and locked mode is initiated
// by an authorized app directly
final int callingUid = Binder.getCallingUid();
long ident = Binder.clearCallingIdentity();
try {
mLockTaskController.startLockTaskMode(task, isAppPinning, callingUid);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
@Override
public void startLockTaskModeByToken(IBinder token) {
synchronized (this) {
final ActivityRecord r = ActivityRecord.forTokenLocked(token);
if (r == null) {
return;
}
startLockTaskModeLocked(r.getTask(), false /* not system initiated */);
}
}
@Override
public void startSystemLockTaskMode(int taskId) throws RemoteException {
enforceCallingPermission(MANAGE_ACTIVITY_STACKS, "startSystemLockTaskMode");
// This makes inner call to look as if it was initiated by system.
long ident = Binder.clearCallingIdentity();
try {
synchronized (this) {
startLockTaskModeLocked(mStackSupervisor.anyTaskForIdLocked(taskId),
true /* system initiated */);
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
@Override
public void stopLockTaskMode() {
stopLockTaskModeInternal(false /* not system initiated */);
}
/**
* This API should be called by SystemUI only when user perform certain action to dismiss
* lock task mode. We should only dismiss pinned lock task mode in this case.
*/
@Override
public void stopSystemLockTaskMode() throws RemoteException {
enforceCallingPermission(MANAGE_ACTIVITY_STACKS, "stopSystemLockTaskMode");
stopLockTaskModeInternal(true /* system initiated */);
}
private void stopLockTaskModeInternal(boolean isSystemRequest) {
final int callingUid = Binder.getCallingUid();
long ident = Binder.clearCallingIdentity();
try {
synchronized (this) {
mLockTaskController.stopLockTaskMode(isSystemRequest, callingUid);
}
// Launch in-call UI if a call is ongoing. This is necessary to allow stopping the lock
// task and jumping straight into a call in the case of emergency call back.
TelecomManager tm = (TelecomManager) mContext.getSystemService(Context.TELECOM_SERVICE);
if (tm != null) {
tm.showInCallScreen(false);
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
@Override
public boolean isInLockTaskMode() {
return getLockTaskModeState() != LOCK_TASK_MODE_NONE;
}
@Override
public int getLockTaskModeState() {
synchronized (this) {
return mLockTaskController.getLockTaskModeState();
}
}
@Override
public void showLockTaskEscapeMessage(IBinder token) {
synchronized (this) {
final ActivityRecord r = ActivityRecord.forTokenLocked(token);
if (r == null) {
return;
}
mLockTaskController.showLockTaskToast();
}
}
@Override
public void setDisablePreviewScreenshots(IBinder token, boolean disable)
throws RemoteException {
synchronized (this) {
final ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r == null) {
Slog.w(TAG, "setDisablePreviewScreenshots: Unable to find activity for token="
+ token);
return;
}
final long origId = Binder.clearCallingIdentity();
try {
r.setDisablePreviewScreenshots(disable);
} finally {
Binder.restoreCallingIdentity(origId);
}
}
}
// =========================================================
// CONTENT PROVIDERS
// =========================================================
private final List<ProviderInfo> generateApplicationProvidersLocked(ProcessRecord app) {
List<ProviderInfo> providers = null;
try {
providers = AppGlobals.getPackageManager()
.queryContentProviders(app.processName, app.uid,
STOCK_PM_FLAGS | PackageManager.GET_URI_PERMISSION_PATTERNS
| MATCH_DEBUG_TRIAGED_MISSING, /*metadastaKey=*/ null)
.getList();
} catch (RemoteException ex) {
}
if (DEBUG_MU) Slog.v(TAG_MU,
"generateApplicationProvidersLocked, app.info.uid = " + app.uid);
int userId = app.userId;
if (providers != null) {
int N = providers.size();
app.pubProviders.ensureCapacity(N + app.pubProviders.size());
for (int i=0; i<N; i++) {
// TODO: keep logic in sync with installEncryptionUnawareProviders
ProviderInfo cpi =
(ProviderInfo)providers.get(i);
boolean singleton = isSingleton(cpi.processName, cpi.applicationInfo,
cpi.name, cpi.flags);
if (singleton && UserHandle.getUserId(app.uid) != UserHandle.USER_SYSTEM) {
// This is a singleton provider, but a user besides the
// default user is asking to initialize a process it runs
// in... well, no, it doesn't actually run in this process,
// it runs in the process of the default user. Get rid of it.
providers.remove(i);
N--;
i--;
continue;
}
ComponentName comp = new ComponentName(cpi.packageName, cpi.name);
ContentProviderRecord cpr = mProviderMap.getProviderByClass(comp, userId);
if (cpr == null) {
cpr = new ContentProviderRecord(this, cpi, app.info, comp, singleton);
mProviderMap.putProviderByClass(comp, cpr);
}
if (DEBUG_MU) Slog.v(TAG_MU,
"generateApplicationProvidersLocked, cpi.uid = " + cpr.uid);
app.pubProviders.put(cpi.name, cpr);
if (!cpi.multiprocess || !"android".equals(cpi.packageName)) {
// Don't add this if it is a platform component that is marked
// to run in multiple processes, because this is actually
// part of the framework so doesn't make sense to track as a
// separate apk in the process.
app.addPackage(cpi.applicationInfo.packageName, cpi.applicationInfo.versionCode,
mProcessStats);
}
notifyPackageUse(cpi.applicationInfo.packageName,
PackageManager.NOTIFY_PACKAGE_USE_CONTENT_PROVIDER);
}
}
return providers;
}
/**
* Check if the calling UID has a possible chance at accessing the provider
* at the given authority and user.
*/
public String checkContentProviderAccess(String authority, int userId) {
if (userId == UserHandle.USER_ALL) {
mContext.enforceCallingOrSelfPermission(
Manifest.permission.INTERACT_ACROSS_USERS_FULL, TAG);
userId = UserHandle.getCallingUserId();
}
ProviderInfo cpi = null;
try {
cpi = AppGlobals.getPackageManager().resolveContentProvider(authority,
STOCK_PM_FLAGS | PackageManager.GET_URI_PERMISSION_PATTERNS
| PackageManager.MATCH_DISABLED_COMPONENTS
| PackageManager.MATCH_DIRECT_BOOT_AWARE
| PackageManager.MATCH_DIRECT_BOOT_UNAWARE,
userId);
} catch (RemoteException ignored) {
}
if (cpi == null) {
return "Failed to find provider " + authority + " for user " + userId
+ "; expected to find a valid ContentProvider for this authority";
}
ProcessRecord r = null;
synchronized (mPidsSelfLocked) {
r = mPidsSelfLocked.get(Binder.getCallingPid());
}
if (r == null) {
return "Failed to find PID " + Binder.getCallingPid();
}
synchronized (this) {
return checkContentProviderPermissionLocked(cpi, r, userId, true);
}
}
/**
* Check if {@link ProcessRecord} has a possible chance at accessing the
* given {@link ProviderInfo}. Final permission checking is always done
* in {@link ContentProvider}.
*/
private final String checkContentProviderPermissionLocked(
ProviderInfo cpi, ProcessRecord r, int userId, boolean checkUser) {
final int callingPid = (r != null) ? r.pid : Binder.getCallingPid();
final int callingUid = (r != null) ? r.uid : Binder.getCallingUid();
boolean checkedGrants = false;
if (checkUser) {
// Looking for cross-user grants before enforcing the typical cross-users permissions
int tmpTargetUserId = mUserController.unsafeConvertIncomingUser(userId);
if (tmpTargetUserId != UserHandle.getUserId(callingUid)) {
if (checkAuthorityGrants(callingUid, cpi, tmpTargetUserId, checkUser)) {
return null;
}
checkedGrants = true;
}
userId = mUserController.handleIncomingUser(callingPid, callingUid, userId, false,
ALLOW_NON_FULL, "checkContentProviderPermissionLocked " + cpi.authority, null);
if (userId != tmpTargetUserId) {
// When we actually went to determine the final targer user ID, this ended
// up different than our initial check for the authority. This is because
// they had asked for USER_CURRENT_OR_SELF and we ended up switching to
// SELF. So we need to re-check the grants again.
checkedGrants = false;
}
}
if (checkComponentPermission(cpi.readPermission, callingPid, callingUid,
cpi.applicationInfo.uid, cpi.exported)
== PackageManager.PERMISSION_GRANTED) {
return null;
}
if (checkComponentPermission(cpi.writePermission, callingPid, callingUid,
cpi.applicationInfo.uid, cpi.exported)
== PackageManager.PERMISSION_GRANTED) {
return null;
}
PathPermission[] pps = cpi.pathPermissions;
if (pps != null) {
int i = pps.length;
while (i > 0) {
i--;
PathPermission pp = pps[i];
String pprperm = pp.getReadPermission();
if (pprperm != null && checkComponentPermission(pprperm, callingPid, callingUid,
cpi.applicationInfo.uid, cpi.exported)
== PackageManager.PERMISSION_GRANTED) {
return null;
}
String ppwperm = pp.getWritePermission();
if (ppwperm != null && checkComponentPermission(ppwperm, callingPid, callingUid,
cpi.applicationInfo.uid, cpi.exported)
== PackageManager.PERMISSION_GRANTED) {
return null;
}
}
}
if (!checkedGrants && checkAuthorityGrants(callingUid, cpi, userId, checkUser)) {
return null;
}
final String suffix;
if (!cpi.exported) {
suffix = " that is not exported from UID " + cpi.applicationInfo.uid;
} else if (android.Manifest.permission.MANAGE_DOCUMENTS.equals(cpi.readPermission)) {
suffix = " requires that you obtain access using ACTION_OPEN_DOCUMENT or related APIs";
} else {
suffix = " requires " + cpi.readPermission + " or " + cpi.writePermission;
}
final String msg = "Permission Denial: opening provider " + cpi.name
+ " from " + (r != null ? r : "(null)") + " (pid=" + callingPid
+ ", uid=" + callingUid + ")" + suffix;
Slog.w(TAG, msg);
return msg;
}
/**
* Returns if the ContentProvider has granted a uri to callingUid
*/
boolean checkAuthorityGrants(int callingUid, ProviderInfo cpi, int userId, boolean checkUser) {
final ArrayMap<GrantUri, UriPermission> perms = mGrantedUriPermissions.get(callingUid);
if (perms != null) {
for (int i=perms.size()-1; i>=0; i--) {
GrantUri grantUri = perms.keyAt(i);
if (grantUri.sourceUserId == userId || !checkUser) {
if (matchesProvider(grantUri.uri, cpi)) {
return true;
}
}
}
}
return false;
}
/**
* Returns true if the uri authority is one of the authorities specified in the provider.
*/
boolean matchesProvider(Uri uri, ProviderInfo cpi) {
String uriAuth = uri.getAuthority();
String cpiAuth = cpi.authority;
if (cpiAuth.indexOf(';') == -1) {
return cpiAuth.equals(uriAuth);
}
String[] cpiAuths = cpiAuth.split(";");
int length = cpiAuths.length;
for (int i = 0; i < length; i++) {
if (cpiAuths[i].equals(uriAuth)) return true;
}
return false;
}
ContentProviderConnection incProviderCountLocked(ProcessRecord r,
final ContentProviderRecord cpr, IBinder externalProcessToken, boolean stable) {
if (r != null) {
for (int i=0; i<r.conProviders.size(); i++) {
ContentProviderConnection conn = r.conProviders.get(i);
if (conn.provider == cpr) {
if (DEBUG_PROVIDER) Slog.v(TAG_PROVIDER,
"Adding provider requested by "
+ r.processName + " from process "
+ cpr.info.processName + ": " + cpr.name.flattenToShortString()
+ " scnt=" + conn.stableCount + " uscnt=" + conn.unstableCount);
if (stable) {
conn.stableCount++;
conn.numStableIncs++;
} else {
conn.unstableCount++;
conn.numUnstableIncs++;
}
return conn;
}
}
ContentProviderConnection conn = new ContentProviderConnection(cpr, r);
if (stable) {
conn.stableCount = 1;
conn.numStableIncs = 1;
} else {
conn.unstableCount = 1;
conn.numUnstableIncs = 1;
}
cpr.connections.add(conn);
r.conProviders.add(conn);
startAssociationLocked(r.uid, r.processName, r.curProcState,
cpr.uid, cpr.name, cpr.info.processName);
return conn;
}
cpr.addExternalProcessHandleLocked(externalProcessToken);
return null;
}
boolean decProviderCountLocked(ContentProviderConnection conn,
ContentProviderRecord cpr, IBinder externalProcessToken, boolean stable) {
if (conn != null) {
cpr = conn.provider;
if (DEBUG_PROVIDER) Slog.v(TAG_PROVIDER,
"Removing provider requested by "
+ conn.client.processName + " from process "
+ cpr.info.processName + ": " + cpr.name.flattenToShortString()
+ " scnt=" + conn.stableCount + " uscnt=" + conn.unstableCount);
if (stable) {
conn.stableCount--;
} else {
conn.unstableCount--;
}
if (conn.stableCount == 0 && conn.unstableCount == 0) {
cpr.connections.remove(conn);
conn.client.conProviders.remove(conn);
if (conn.client.setProcState < ActivityManager.PROCESS_STATE_LAST_ACTIVITY) {
// The client is more important than last activity -- note the time this
// is happening, so we keep the old provider process around a bit as last
// activity to avoid thrashing it.
if (cpr.proc != null) {
cpr.proc.lastProviderTime = SystemClock.uptimeMillis();
}
}
stopAssociationLocked(conn.client.uid, conn.client.processName, cpr.uid, cpr.name);
return true;
}
return false;
}
cpr.removeExternalProcessHandleLocked(externalProcessToken);
return false;
}
private void checkTime(long startTime, String where) {
long now = SystemClock.uptimeMillis();
if ((now-startTime) > 50) {
// If we are taking more than 50ms, log about it.
Slog.w(TAG, "Slow operation: " + (now-startTime) + "ms so far, now at " + where);
}
}
private static final int[] PROCESS_STATE_STATS_FORMAT = new int[] {
PROC_SPACE_TERM,
PROC_SPACE_TERM|PROC_PARENS,
PROC_SPACE_TERM|PROC_CHAR|PROC_OUT_LONG, // 3: process state
};
private final long[] mProcessStateStatsLongs = new long[1];
boolean isProcessAliveLocked(ProcessRecord proc) {
if (proc.procStatFile == null) {
proc.procStatFile = "/proc/" + proc.pid + "/stat";
}
mProcessStateStatsLongs[0] = 0;
if (!readProcFile(proc.procStatFile, PROCESS_STATE_STATS_FORMAT, null,
mProcessStateStatsLongs, null)) {
if (DEBUG_OOM_ADJ) Slog.d(TAG, "UNABLE TO RETRIEVE STATE FOR " + proc.procStatFile);
return false;
}
final long state = mProcessStateStatsLongs[0];
if (DEBUG_OOM_ADJ) Slog.d(TAG, "RETRIEVED STATE FOR " + proc.procStatFile + ": "
+ (char)state);
return state != 'Z' && state != 'X' && state != 'x' && state != 'K';
}
private ContentProviderHolder getContentProviderImpl(IApplicationThread caller,
String name, IBinder token, boolean stable, int userId) {
ContentProviderRecord cpr;
ContentProviderConnection conn = null;
ProviderInfo cpi = null;
synchronized(this) {
long startTime = SystemClock.uptimeMillis();
ProcessRecord r = null;
if (caller != null) {
r = getRecordForAppLocked(caller);
if (r == null) {
throw new SecurityException(
"Unable to find app for caller " + caller
+ " (pid=" + Binder.getCallingPid()
+ ") when getting content provider " + name);
}
}
boolean checkCrossUser = true;
checkTime(startTime, "getContentProviderImpl: getProviderByName");
// First check if this content provider has been published...
cpr = mProviderMap.getProviderByName(name, userId);
// If that didn't work, check if it exists for user 0 and then
// verify that it's a singleton provider before using it.
if (cpr == null && userId != UserHandle.USER_SYSTEM) {
cpr = mProviderMap.getProviderByName(name, UserHandle.USER_SYSTEM);
if (cpr != null) {
cpi = cpr.info;
if (isSingleton(cpi.processName, cpi.applicationInfo,
cpi.name, cpi.flags)
&& isValidSingletonCall(r.uid, cpi.applicationInfo.uid)) {
userId = UserHandle.USER_SYSTEM;
checkCrossUser = false;
} else {
cpr = null;
cpi = null;
}
}
}
boolean providerRunning = cpr != null && cpr.proc != null && !cpr.proc.killed;
if (providerRunning) {
cpi = cpr.info;
String msg;
checkTime(startTime, "getContentProviderImpl: before checkContentProviderPermission");
if ((msg = checkContentProviderPermissionLocked(cpi, r, userId, checkCrossUser))
!= null) {
throw new SecurityException(msg);
}
checkTime(startTime, "getContentProviderImpl: after checkContentProviderPermission");
if (r != null && cpr.canRunHere(r)) {
// This provider has been published or is in the process
// of being published... but it is also allowed to run
// in the caller's process, so don't make a connection
// and just let the caller instantiate its own instance.
ContentProviderHolder holder = cpr.newHolder(null);
// don't give caller the provider object, it needs
// to make its own.
holder.provider = null;
return holder;
}
// Don't expose providers between normal apps and instant apps
try {
if (AppGlobals.getPackageManager()
.resolveContentProvider(name, 0 /*flags*/, userId) == null) {
return null;
}
} catch (RemoteException e) {
}
final long origId = Binder.clearCallingIdentity();
checkTime(startTime, "getContentProviderImpl: incProviderCountLocked");
// In this case the provider instance already exists, so we can
// return it right away.
conn = incProviderCountLocked(r, cpr, token, stable);
if (conn != null && (conn.stableCount+conn.unstableCount) == 1) {
if (cpr.proc != null && r.setAdj <= ProcessList.PERCEPTIBLE_APP_ADJ) {
// If this is a perceptible app accessing the provider,
// make sure to count it as being accessed and thus
// back up on the LRU list. This is good because
// content providers are often expensive to start.
checkTime(startTime, "getContentProviderImpl: before updateLruProcess");
updateLruProcessLocked(cpr.proc, false, null);
checkTime(startTime, "getContentProviderImpl: after updateLruProcess");
}
}
checkTime(startTime, "getContentProviderImpl: before updateOomAdj");
final int verifiedAdj = cpr.proc.verifiedAdj;
boolean success = updateOomAdjLocked(cpr.proc, true);
// XXX things have changed so updateOomAdjLocked doesn't actually tell us
// if the process has been successfully adjusted. So to reduce races with
// it, we will check whether the process still exists. Note that this doesn't
// completely get rid of races with LMK killing the process, but should make
// them much smaller.
if (success && verifiedAdj != cpr.proc.setAdj && !isProcessAliveLocked(cpr.proc)) {
success = false;
}
maybeUpdateProviderUsageStatsLocked(r, cpr.info.packageName, name);
checkTime(startTime, "getContentProviderImpl: after updateOomAdj");
if (DEBUG_PROVIDER) Slog.i(TAG_PROVIDER, "Adjust success: " + success);
// NOTE: there is still a race here where a signal could be
// pending on the process even though we managed to update its
// adj level. Not sure what to do about this, but at least
// the race is now smaller.
if (!success) {
// Uh oh... it looks like the provider's process
// has been killed on us. We need to wait for a new
// process to be started, and make sure its death
// doesn't kill our process.
Slog.i(TAG, "Existing provider " + cpr.name.flattenToShortString()
+ " is crashing; detaching " + r);
boolean lastRef = decProviderCountLocked(conn, cpr, token, stable);
checkTime(startTime, "getContentProviderImpl: before appDied");
appDiedLocked(cpr.proc);
checkTime(startTime, "getContentProviderImpl: after appDied");
if (!lastRef) {
// This wasn't the last ref our process had on
// the provider... we have now been killed, bail.
return null;
}
providerRunning = false;
conn = null;
} else {
cpr.proc.verifiedAdj = cpr.proc.setAdj;
}
Binder.restoreCallingIdentity(origId);
}
if (!providerRunning) {
try {
checkTime(startTime, "getContentProviderImpl: before resolveContentProvider");
cpi = AppGlobals.getPackageManager().
resolveContentProvider(name,
STOCK_PM_FLAGS | PackageManager.GET_URI_PERMISSION_PATTERNS, userId);
checkTime(startTime, "getContentProviderImpl: after resolveContentProvider");
} catch (RemoteException ex) {
}
if (cpi == null) {
return null;
}
// If the provider is a singleton AND
// (it's a call within the same user || the provider is a
// privileged app)
// Then allow connecting to the singleton provider
boolean singleton = isSingleton(cpi.processName, cpi.applicationInfo,
cpi.name, cpi.flags)
&& isValidSingletonCall(r.uid, cpi.applicationInfo.uid);
if (singleton) {
userId = UserHandle.USER_SYSTEM;
}
cpi.applicationInfo = getAppInfoForUser(cpi.applicationInfo, userId);
checkTime(startTime, "getContentProviderImpl: got app info for user");
String msg;
checkTime(startTime, "getContentProviderImpl: before checkContentProviderPermission");
if ((msg = checkContentProviderPermissionLocked(cpi, r, userId, !singleton))
!= null) {
throw new SecurityException(msg);
}
checkTime(startTime, "getContentProviderImpl: after checkContentProviderPermission");
if (!mProcessesReady
&& !cpi.processName.equals("system")) {
// If this content provider does not run in the system
// process, and the system is not yet ready to run other
// processes, then fail fast instead of hanging.
throw new IllegalArgumentException(
"Attempt to launch content provider before system ready");
}
// Make sure that the user who owns this provider is running. If not,
// we don't want to allow it to run.
if (!mUserController.isUserRunning(userId, 0)) {
Slog.w(TAG, "Unable to launch app "
+ cpi.applicationInfo.packageName + "/"
+ cpi.applicationInfo.uid + " for provider "
+ name + ": user " + userId + " is stopped");
return null;
}
ComponentName comp = new ComponentName(cpi.packageName, cpi.name);
checkTime(startTime, "getContentProviderImpl: before getProviderByClass");
cpr = mProviderMap.getProviderByClass(comp, userId);
checkTime(startTime, "getContentProviderImpl: after getProviderByClass");
final boolean firstClass = cpr == null;
if (firstClass) {
final long ident = Binder.clearCallingIdentity();
// If permissions need a review before any of the app components can run,
// we return no provider and launch a review activity if the calling app
// is in the foreground.
if (mPermissionReviewRequired) {
if (!requestTargetProviderPermissionsReviewIfNeededLocked(cpi, r, userId)) {
return null;
}
}
try {
checkTime(startTime, "getContentProviderImpl: before getApplicationInfo");
ApplicationInfo ai =
AppGlobals.getPackageManager().
getApplicationInfo(
cpi.applicationInfo.packageName,
STOCK_PM_FLAGS, userId);
checkTime(startTime, "getContentProviderImpl: after getApplicationInfo");
if (ai == null) {
Slog.w(TAG, "No package info for content provider "
+ cpi.name);
return null;
}
ai = getAppInfoForUser(ai, userId);
cpr = new ContentProviderRecord(this, cpi, ai, comp, singleton);
} catch (RemoteException ex) {
// pm is in same process, this will never happen.
} finally {
Binder.restoreCallingIdentity(ident);
}
}
checkTime(startTime, "getContentProviderImpl: now have ContentProviderRecord");
if (r != null && cpr.canRunHere(r)) {
// If this is a multiprocess provider, then just return its
// info and allow the caller to instantiate it. Only do
// this if the provider is the same user as the caller's
// process, or can run as root (so can be in any process).
return cpr.newHolder(null);
}
if (DEBUG_PROVIDER) Slog.w(TAG_PROVIDER, "LAUNCHING REMOTE PROVIDER (myuid "
+ (r != null ? r.uid : null) + " pruid " + cpr.appInfo.uid + "): "
+ cpr.info.name + " callers=" + Debug.getCallers(6));
// This is single process, and our app is now connecting to it.
// See if we are already in the process of launching this
// provider.
final int N = mLaunchingProviders.size();
int i;
for (i = 0; i < N; i++) {
if (mLaunchingProviders.get(i) == cpr) {
break;
}
}
// If the provider is not already being launched, then get it
// started.
if (i >= N) {
final long origId = Binder.clearCallingIdentity();
try {
// Content provider is now in use, its package can't be stopped.
try {
checkTime(startTime, "getContentProviderImpl: before set stopped state");
AppGlobals.getPackageManager().setPackageStoppedState(
cpr.appInfo.packageName, false, userId);
checkTime(startTime, "getContentProviderImpl: after set stopped state");
} catch (RemoteException e) {
} catch (IllegalArgumentException e) {
Slog.w(TAG, "Failed trying to unstop package "
+ cpr.appInfo.packageName + ": " + e);
}
// Use existing process if already started
checkTime(startTime, "getContentProviderImpl: looking for process record");
ProcessRecord proc = getProcessRecordLocked(
cpi.processName, cpr.appInfo.uid, false);
if (proc != null && proc.thread != null && !proc.killed) {
if (DEBUG_PROVIDER) Slog.d(TAG_PROVIDER,
"Installing in existing process " + proc);
if (!proc.pubProviders.containsKey(cpi.name)) {
checkTime(startTime, "getContentProviderImpl: scheduling install");
proc.pubProviders.put(cpi.name, cpr);
try {
proc.thread.scheduleInstallProvider(cpi);
} catch (RemoteException e) {
}
}
} else {
checkTime(startTime, "getContentProviderImpl: before start process");
proc = startProcessLocked(cpi.processName,
cpr.appInfo, false, 0, "content provider",
new ComponentName(cpi.applicationInfo.packageName,
cpi.name), false, false, false);
checkTime(startTime, "getContentProviderImpl: after start process");
if (proc == null) {
Slog.w(TAG, "Unable to launch app "
+ cpi.applicationInfo.packageName + "/"
+ cpi.applicationInfo.uid + " for provider "
+ name + ": process is bad");
return null;
}
}
cpr.launchingApp = proc;
mLaunchingProviders.add(cpr);
} finally {
Binder.restoreCallingIdentity(origId);
}
}
checkTime(startTime, "getContentProviderImpl: updating data structures");
// Make sure the provider is published (the same provider class
// may be published under multiple names).
if (firstClass) {
mProviderMap.putProviderByClass(comp, cpr);
}
mProviderMap.putProviderByName(name, cpr);
conn = incProviderCountLocked(r, cpr, token, stable);
if (conn != null) {
conn.waiting = true;
}
}
checkTime(startTime, "getContentProviderImpl: done!");
grantEphemeralAccessLocked(userId, null /*intent*/,
cpi.applicationInfo.uid, UserHandle.getAppId(Binder.getCallingUid()));
}
// Wait for the provider to be published...
synchronized (cpr) {
while (cpr.provider == null) {
if (cpr.launchingApp == null) {
Slog.w(TAG, "Unable to launch app "
+ cpi.applicationInfo.packageName + "/"
+ cpi.applicationInfo.uid + " for provider "
+ name + ": launching app became null");
EventLog.writeEvent(EventLogTags.AM_PROVIDER_LOST_PROCESS,
UserHandle.getUserId(cpi.applicationInfo.uid),
cpi.applicationInfo.packageName,
cpi.applicationInfo.uid, name);
return null;
}
try {
if (DEBUG_MU) Slog.v(TAG_MU,
"Waiting to start provider " + cpr
+ " launchingApp=" + cpr.launchingApp);
if (conn != null) {
conn.waiting = true;
}
cpr.wait();
} catch (InterruptedException ex) {
} finally {
if (conn != null) {
conn.waiting = false;
}
}
}
}
return cpr != null ? cpr.newHolder(conn) : null;
}
private boolean requestTargetProviderPermissionsReviewIfNeededLocked(ProviderInfo cpi,
ProcessRecord r, final int userId) {
if (getPackageManagerInternalLocked().isPermissionsReviewRequired(
cpi.packageName, userId)) {
final boolean callerForeground = r == null || r.setSchedGroup
!= ProcessList.SCHED_GROUP_BACKGROUND;
// Show a permission review UI only for starting from a foreground app
if (!callerForeground) {
Slog.w(TAG, "u" + userId + " Instantiating a provider in package"
+ cpi.packageName + " requires a permissions review");
return false;
}
final Intent intent = new Intent(Intent.ACTION_REVIEW_PERMISSIONS);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK
| Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
intent.putExtra(Intent.EXTRA_PACKAGE_NAME, cpi.packageName);
if (DEBUG_PERMISSIONS_REVIEW) {
Slog.i(TAG, "u" + userId + " Launching permission review "
+ "for package " + cpi.packageName);
}
final UserHandle userHandle = new UserHandle(userId);
mHandler.post(new Runnable() {
@Override
public void run() {
mContext.startActivityAsUser(intent, userHandle);
}
});
return false;
}
return true;
}
PackageManagerInternal getPackageManagerInternalLocked() {
if (mPackageManagerInt == null) {
mPackageManagerInt = LocalServices.getService(PackageManagerInternal.class);
}
return mPackageManagerInt;
}
@Override
public final ContentProviderHolder getContentProvider(
IApplicationThread caller, String name, int userId, boolean stable) {
enforceNotIsolatedCaller("getContentProvider");
if (caller == null) {
String msg = "null IApplicationThread when getting content provider "
+ name;
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
// The incoming user check is now handled in checkContentProviderPermissionLocked() to deal
// with cross-user grant.
return getContentProviderImpl(caller, name, null, stable, userId);
}
public ContentProviderHolder getContentProviderExternal(
String name, int userId, IBinder token) {
enforceCallingPermission(android.Manifest.permission.ACCESS_CONTENT_PROVIDERS_EXTERNALLY,
"Do not have permission in call getContentProviderExternal()");
userId = mUserController.handleIncomingUser(Binder.getCallingPid(), Binder.getCallingUid(),
userId, false, ALLOW_FULL_ONLY, "getContentProvider", null);
return getContentProviderExternalUnchecked(name, token, userId);
}
private ContentProviderHolder getContentProviderExternalUnchecked(String name,
IBinder token, int userId) {
return getContentProviderImpl(null, name, token, true, userId);
}
/**
* Drop a content provider from a ProcessRecord's bookkeeping
*/
public void removeContentProvider(IBinder connection, boolean stable) {
enforceNotIsolatedCaller("removeContentProvider");
long ident = Binder.clearCallingIdentity();
try {
synchronized (this) {
ContentProviderConnection conn;
try {
conn = (ContentProviderConnection)connection;
} catch (ClassCastException e) {
String msg ="removeContentProvider: " + connection
+ " not a ContentProviderConnection";
Slog.w(TAG, msg);
throw new IllegalArgumentException(msg);
}
if (conn == null) {
throw new NullPointerException("connection is null");
}
if (decProviderCountLocked(conn, null, null, stable)) {
updateOomAdjLocked();
}
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
public void removeContentProviderExternal(String name, IBinder token) {
enforceCallingPermission(android.Manifest.permission.ACCESS_CONTENT_PROVIDERS_EXTERNALLY,
"Do not have permission in call removeContentProviderExternal()");
int userId = UserHandle.getCallingUserId();
long ident = Binder.clearCallingIdentity();
try {
removeContentProviderExternalUnchecked(name, token, userId);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
private void removeContentProviderExternalUnchecked(String name, IBinder token, int userId) {
synchronized (this) {
ContentProviderRecord cpr = mProviderMap.getProviderByName(name, userId);
if(cpr == null) {
//remove from mProvidersByClass
if(DEBUG_ALL) Slog.v(TAG, name+" content provider not found in providers list");
return;
}
//update content provider record entry info
ComponentName comp = new ComponentName(cpr.info.packageName, cpr.info.name);
ContentProviderRecord localCpr = mProviderMap.getProviderByClass(comp, userId);
if (localCpr.hasExternalProcessHandles()) {
if (localCpr.removeExternalProcessHandleLocked(token)) {
updateOomAdjLocked();
} else {
Slog.e(TAG, "Attmpt to remove content provider " + localCpr
+ " with no external reference for token: "
+ token + ".");
}
} else {
Slog.e(TAG, "Attmpt to remove content provider: " + localCpr
+ " with no external references.");
}
}
}
public final void publishContentProviders(IApplicationThread caller,
List<ContentProviderHolder> providers) {
if (providers == null) {
return;
}
enforceNotIsolatedCaller("publishContentProviders");
synchronized (this) {
final ProcessRecord r = getRecordForAppLocked(caller);
if (DEBUG_MU) Slog.v(TAG_MU, "ProcessRecord uid = " + r.uid);
if (r == null) {
throw new SecurityException(
"Unable to find app for caller " + caller
+ " (pid=" + Binder.getCallingPid()
+ ") when publishing content providers");
}
final long origId = Binder.clearCallingIdentity();
final int N = providers.size();
for (int i = 0; i < N; i++) {
ContentProviderHolder src = providers.get(i);
if (src == null || src.info == null || src.provider == null) {
continue;
}
ContentProviderRecord dst = r.pubProviders.get(src.info.name);
if (DEBUG_MU) Slog.v(TAG_MU, "ContentProviderRecord uid = " + dst.uid);
if (dst != null) {
ComponentName comp = new ComponentName(dst.info.packageName, dst.info.name);
mProviderMap.putProviderByClass(comp, dst);
String names[] = dst.info.authority.split(";");
for (int j = 0; j < names.length; j++) {
mProviderMap.putProviderByName(names[j], dst);
}
int launchingCount = mLaunchingProviders.size();
int j;
boolean wasInLaunchingProviders = false;
for (j = 0; j < launchingCount; j++) {
if (mLaunchingProviders.get(j) == dst) {
mLaunchingProviders.remove(j);
wasInLaunchingProviders = true;
j--;
launchingCount--;
}
}
if (wasInLaunchingProviders) {
mHandler.removeMessages(CONTENT_PROVIDER_PUBLISH_TIMEOUT_MSG, r);
}
synchronized (dst) {
dst.provider = src.provider;
dst.proc = r;
dst.notifyAll();
}
updateOomAdjLocked(r, true);
maybeUpdateProviderUsageStatsLocked(r, src.info.packageName,
src.info.authority);
}
}
Binder.restoreCallingIdentity(origId);
}
}
public boolean refContentProvider(IBinder connection, int stable, int unstable) {
ContentProviderConnection conn;
try {
conn = (ContentProviderConnection)connection;
} catch (ClassCastException e) {
String msg ="refContentProvider: " + connection
+ " not a ContentProviderConnection";
Slog.w(TAG, msg);
throw new IllegalArgumentException(msg);
}
if (conn == null) {
throw new NullPointerException("connection is null");
}
synchronized (this) {
if (stable > 0) {
conn.numStableIncs += stable;
}
stable = conn.stableCount + stable;
if (stable < 0) {
throw new IllegalStateException("stableCount < 0: " + stable);
}
if (unstable > 0) {
conn.numUnstableIncs += unstable;
}
unstable = conn.unstableCount + unstable;
if (unstable < 0) {
throw new IllegalStateException("unstableCount < 0: " + unstable);
}
if ((stable+unstable) <= 0) {
throw new IllegalStateException("ref counts can't go to zero here: stable="
+ stable + " unstable=" + unstable);
}
conn.stableCount = stable;
conn.unstableCount = unstable;
return !conn.dead;
}
}
public void unstableProviderDied(IBinder connection) {
ContentProviderConnection conn;
try {
conn = (ContentProviderConnection)connection;
} catch (ClassCastException e) {
String msg ="refContentProvider: " + connection
+ " not a ContentProviderConnection";
Slog.w(TAG, msg);
throw new IllegalArgumentException(msg);
}
if (conn == null) {
throw new NullPointerException("connection is null");
}
// Safely retrieve the content provider associated with the connection.
IContentProvider provider;
synchronized (this) {
provider = conn.provider.provider;
}
if (provider == null) {
// Um, yeah, we're way ahead of you.
return;
}
// Make sure the caller is being honest with us.
if (provider.asBinder().pingBinder()) {
// Er, no, still looks good to us.
synchronized (this) {
Slog.w(TAG, "unstableProviderDied: caller " + Binder.getCallingUid()
+ " says " + conn + " died, but we don't agree");
return;
}
}
// Well look at that! It's dead!
synchronized (this) {
if (conn.provider.provider != provider) {
// But something changed... good enough.
return;
}
ProcessRecord proc = conn.provider.proc;
if (proc == null || proc.thread == null) {
// Seems like the process is already cleaned up.
return;
}
// As far as we're concerned, this is just like receiving a
// death notification... just a bit prematurely.
Slog.i(TAG, "Process " + proc.processName + " (pid " + proc.pid
+ ") early provider death");
final long ident = Binder.clearCallingIdentity();
try {
appDiedLocked(proc);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
@Override
public void appNotRespondingViaProvider(IBinder connection) {
enforceCallingPermission(REMOVE_TASKS, "appNotRespondingViaProvider()");
final ContentProviderConnection conn = (ContentProviderConnection) connection;
if (conn == null) {
Slog.w(TAG, "ContentProviderConnection is null");
return;
}
final ProcessRecord host = conn.provider.proc;
if (host == null) {
Slog.w(TAG, "Failed to find hosting ProcessRecord");
return;
}
mHandler.post(new Runnable() {
@Override
public void run() {
mAppErrors.appNotResponding(host, null, null, false,
"ContentProvider not responding");
}
});
}
public final void installSystemProviders() {
List<ProviderInfo> providers;
synchronized (this) {
ProcessRecord app = mProcessNames.get("system", SYSTEM_UID);
providers = generateApplicationProvidersLocked(app);
if (providers != null) {
for (int i=providers.size()-1; i>=0; i--) {
ProviderInfo pi = (ProviderInfo)providers.get(i);
if ((pi.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) == 0) {
Slog.w(TAG, "Not installing system proc provider " + pi.name
+ ": not system .apk");
providers.remove(i);
}
}
}
}
if (providers != null) {
mSystemThread.installSystemProviders(providers);
}
mConstants.start(mContext.getContentResolver());
mCoreSettingsObserver = new CoreSettingsObserver(this);
mFontScaleSettingObserver = new FontScaleSettingObserver();
// Now that the settings provider is published we can consider sending
// in a rescue party.
RescueParty.onSettingsProviderPublished(mContext);
//mUsageStatsService.monitorPackages();
}
void startPersistentApps(int matchFlags) {
if (mFactoryTest == FactoryTest.FACTORY_TEST_LOW_LEVEL) return;
synchronized (this) {
try {
final List<ApplicationInfo> apps = AppGlobals.getPackageManager()
.getPersistentApplications(STOCK_PM_FLAGS | matchFlags).getList();
for (ApplicationInfo app : apps) {
if (!"android".equals(app.packageName)) {
addAppLocked(app, null, false, null /* ABI override */);
}
}
} catch (RemoteException ex) {
}
}
}
/**
* When a user is unlocked, we need to install encryption-unaware providers
* belonging to any running apps.
*/
void installEncryptionUnawareProviders(int userId) {
// We're only interested in providers that are encryption unaware, and
// we don't care about uninstalled apps, since there's no way they're
// running at this point.
final int matchFlags = GET_PROVIDERS | MATCH_DIRECT_BOOT_UNAWARE;
synchronized (this) {
final int NP = mProcessNames.getMap().size();
for (int ip = 0; ip < NP; ip++) {
final SparseArray<ProcessRecord> apps = mProcessNames.getMap().valueAt(ip);
final int NA = apps.size();
for (int ia = 0; ia < NA; ia++) {
final ProcessRecord app = apps.valueAt(ia);
if (app.userId != userId || app.thread == null || app.unlocked) continue;
final int NG = app.pkgList.size();
for (int ig = 0; ig < NG; ig++) {
try {
final String pkgName = app.pkgList.keyAt(ig);
final PackageInfo pkgInfo = AppGlobals.getPackageManager()
.getPackageInfo(pkgName, matchFlags, userId);
if (pkgInfo != null && !ArrayUtils.isEmpty(pkgInfo.providers)) {
for (ProviderInfo pi : pkgInfo.providers) {
// TODO: keep in sync with generateApplicationProvidersLocked
final boolean processMatch = Objects.equals(pi.processName,
app.processName) || pi.multiprocess;
final boolean userMatch = isSingleton(pi.processName,
pi.applicationInfo, pi.name, pi.flags)
? (app.userId == UserHandle.USER_SYSTEM) : true;
if (processMatch && userMatch) {
Log.v(TAG, "Installing " + pi);
app.thread.scheduleInstallProvider(pi);
} else {
Log.v(TAG, "Skipping " + pi);
}
}
}
} catch (RemoteException ignored) {
}
}
}
}
}
}
/**
* Allows apps to retrieve the MIME type of a URI.
* If an app is in the same user as the ContentProvider, or if it is allowed to interact across
* users, then it does not need permission to access the ContentProvider.
* Either, it needs cross-user uri grants.
*
* CTS tests for this functionality can be run with "runtest cts-appsecurity".
*
* Test cases are at cts/tests/appsecurity-tests/test-apps/UsePermissionDiffCert/
* src/com/android/cts/usespermissiondiffcertapp/AccessPermissionWithDiffSigTest.java
*/
public String getProviderMimeType(Uri uri, int userId) {
enforceNotIsolatedCaller("getProviderMimeType");
final String name = uri.getAuthority();
int callingUid = Binder.getCallingUid();
int callingPid = Binder.getCallingPid();
long ident = 0;
boolean clearedIdentity = false;
userId = mUserController.unsafeConvertIncomingUser(userId);
if (canClearIdentity(callingPid, callingUid, userId)) {
clearedIdentity = true;
ident = Binder.clearCallingIdentity();
}
ContentProviderHolder holder = null;
try {
holder = getContentProviderExternalUnchecked(name, null, userId);
if (holder != null) {
return holder.provider.getType(uri);
}
} catch (RemoteException e) {
Log.w(TAG, "Content provider dead retrieving " + uri, e);
return null;
} catch (Exception e) {
Log.w(TAG, "Exception while determining type of " + uri, e);
return null;
} finally {
// We need to clear the identity to call removeContentProviderExternalUnchecked
if (!clearedIdentity) {
ident = Binder.clearCallingIdentity();
}
try {
if (holder != null) {
removeContentProviderExternalUnchecked(name, null, userId);
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
return null;
}
private boolean canClearIdentity(int callingPid, int callingUid, int userId) {
if (UserHandle.getUserId(callingUid) == userId) {
return true;
}
if (checkComponentPermission(INTERACT_ACROSS_USERS, callingPid,
callingUid, -1, true) == PackageManager.PERMISSION_GRANTED
|| checkComponentPermission(INTERACT_ACROSS_USERS_FULL, callingPid,
callingUid, -1, true) == PackageManager.PERMISSION_GRANTED) {
return true;
}
return false;
}
// =========================================================
// GLOBAL MANAGEMENT
// =========================================================
final ProcessRecord newProcessRecordLocked(ApplicationInfo info, String customProcess,
boolean isolated, int isolatedUid) {
String proc = customProcess != null ? customProcess : info.processName;
BatteryStatsImpl stats = mBatteryStatsService.getActiveStatistics();
final int userId = UserHandle.getUserId(info.uid);
int uid = info.uid;
if (isolated) {
if (isolatedUid == 0) {
int stepsLeft = LAST_ISOLATED_UID - FIRST_ISOLATED_UID + 1;
while (true) {
if (mNextIsolatedProcessUid < FIRST_ISOLATED_UID
|| mNextIsolatedProcessUid > LAST_ISOLATED_UID) {
mNextIsolatedProcessUid = FIRST_ISOLATED_UID;
}
uid = UserHandle.getUid(userId, mNextIsolatedProcessUid);
mNextIsolatedProcessUid++;
if (mIsolatedProcesses.indexOfKey(uid) < 0) {
// No process for this uid, use it.
break;
}
stepsLeft--;
if (stepsLeft <= 0) {
return null;
}
}
} else {
// Special case for startIsolatedProcess (internal only), where
// the uid of the isolated process is specified by the caller.
uid = isolatedUid;
}
getPackageManagerInternalLocked().addIsolatedUid(uid, info.uid);
// Register the isolated UID with this application so BatteryStats knows to
// attribute resource usage to the application.
//
// NOTE: This is done here before addProcessNameLocked, which will tell BatteryStats
// about the process state of the isolated UID *before* it is registered with the
// owning application.
mBatteryStatsService.addIsolatedUid(uid, info.uid);
}
final ProcessRecord r = new ProcessRecord(stats, info, proc, uid);
if (!mBooted && !mBooting
&& userId == UserHandle.USER_SYSTEM
&& (info.flags & PERSISTENT_MASK) == PERSISTENT_MASK) {
r.persistent = true;
r.maxAdj = ProcessList.PERSISTENT_PROC_ADJ;
}
if (isolated && isolatedUid != 0) {
// Special case for startIsolatedProcess (internal only) - assume the process
// is required by the system server to prevent it being killed.
r.maxAdj = ProcessList.PERSISTENT_SERVICE_ADJ;
}
addProcessNameLocked(r);
return r;
}
private boolean uidOnBackgroundWhitelist(final int uid) {
final int appId = UserHandle.getAppId(uid);
final int[] whitelist = mBackgroundAppIdWhitelist;
final int N = whitelist.length;
for (int i = 0; i < N; i++) {
if (appId == whitelist[i]) {
return true;
}
}
return false;
}
@Override
public void backgroundWhitelistUid(final int uid) {
if (Binder.getCallingUid() != Process.SYSTEM_UID) {
throw new SecurityException("Only the OS may call backgroundWhitelistUid()");
}
if (DEBUG_BACKGROUND_CHECK) {
Slog.i(TAG, "Adding uid " + uid + " to bg uid whitelist");
}
synchronized (this) {
final int N = mBackgroundAppIdWhitelist.length;
int[] newList = new int[N+1];
System.arraycopy(mBackgroundAppIdWhitelist, 0, newList, 0, N);
newList[N] = UserHandle.getAppId(uid);
mBackgroundAppIdWhitelist = newList;
}
}
final ProcessRecord addAppLocked(ApplicationInfo info, String customProcess, boolean isolated,
String abiOverride) {
ProcessRecord app;
if (!isolated) {
app = getProcessRecordLocked(customProcess != null ? customProcess : info.processName,
info.uid, true);
} else {
app = null;
}
if (app == null) {
app = newProcessRecordLocked(info, customProcess, isolated, 0);
updateLruProcessLocked(app, false, null);
updateOomAdjLocked();
}
// This package really, really can not be stopped.
try {
AppGlobals.getPackageManager().setPackageStoppedState(
info.packageName, false, UserHandle.getUserId(app.uid));
} catch (RemoteException e) {
} catch (IllegalArgumentException e) {
Slog.w(TAG, "Failed trying to unstop package "
+ info.packageName + ": " + e);
}
if ((info.flags & PERSISTENT_MASK) == PERSISTENT_MASK) {
app.persistent = true;
app.maxAdj = ProcessList.PERSISTENT_PROC_ADJ;
}
if (app.thread == null && mPersistentStartingProcesses.indexOf(app) < 0) {
mPersistentStartingProcesses.add(app);
startProcessLocked(app, "added application",
customProcess != null ? customProcess : app.processName, abiOverride);
}
return app;
}
public void unhandledBack() {
enforceCallingPermission(android.Manifest.permission.FORCE_BACK,
"unhandledBack()");
synchronized(this) {
final long origId = Binder.clearCallingIdentity();
try {
getFocusedStack().unhandledBackLocked();
} finally {
Binder.restoreCallingIdentity(origId);
}
}
}
public ParcelFileDescriptor openContentUri(String uriString) throws RemoteException {
enforceNotIsolatedCaller("openContentUri");
final int userId = UserHandle.getCallingUserId();
final Uri uri = Uri.parse(uriString);
String name = uri.getAuthority();
ContentProviderHolder cph = getContentProviderExternalUnchecked(name, null, userId);
ParcelFileDescriptor pfd = null;
if (cph != null) {
// We record the binder invoker's uid in thread-local storage before
// going to the content provider to open the file. Later, in the code
// that handles all permissions checks, we look for this uid and use
// that rather than the Activity Manager's own uid. The effect is that
// we do the check against the caller's permissions even though it looks
// to the content provider like the Activity Manager itself is making
// the request.
Binder token = new Binder();
sCallerIdentity.set(new Identity(
token, Binder.getCallingPid(), Binder.getCallingUid()));
try {
pfd = cph.provider.openFile(null, uri, "r", null, token);
} catch (FileNotFoundException e) {
// do nothing; pfd will be returned null
} finally {
// Ensure that whatever happens, we clean up the identity state
sCallerIdentity.remove();
// Ensure we're done with the provider.
removeContentProviderExternalUnchecked(name, null, userId);
}
} else {
Slog.d(TAG, "Failed to get provider for authority '" + name + "'");
}
return pfd;
}
// Actually is sleeping or shutting down or whatever else in the future
// is an inactive state.
boolean isSleepingOrShuttingDownLocked() {
return isSleepingLocked() || mShuttingDown;
}
boolean isShuttingDownLocked() {
return mShuttingDown;
}
boolean isSleepingLocked() {
return mSleeping;
}
void onWakefulnessChanged(int wakefulness) {
synchronized(this) {
boolean wasAwake = mWakefulness == PowerManagerInternal.WAKEFULNESS_AWAKE;
boolean isAwake = wakefulness == PowerManagerInternal.WAKEFULNESS_AWAKE;
mWakefulness = wakefulness;
if (wasAwake != isAwake) {
// Also update state in a special way for running foreground services UI.
mServices.updateScreenStateLocked(isAwake);
sendNotifyVrManagerOfSleepState(!isAwake);
}
}
}
void finishRunningVoiceLocked() {
if (mRunningVoice != null) {
mRunningVoice = null;
mVoiceWakeLock.release();
updateSleepIfNeededLocked();
}
}
void startTimeTrackingFocusedActivityLocked() {
final ActivityRecord resumedActivity = mStackSupervisor.getResumedActivityLocked();
if (!mSleeping && mCurAppTimeTracker != null && resumedActivity != null) {
mCurAppTimeTracker.start(resumedActivity.packageName);
}
}
void updateSleepIfNeededLocked() {
final boolean shouldSleep = !mStackSupervisor.hasAwakeDisplay();
final boolean wasSleeping = mSleeping;
if (!shouldSleep) {
// If wasSleeping is true, we need to wake up activity manager state from when
// we started sleeping. In either case, we need to apply the sleep tokens, which
// will wake up stacks or put them to sleep as appropriate.
if (wasSleeping) {
mSleeping = false;
startTimeTrackingFocusedActivityLocked();
mTopProcessState = ActivityManager.PROCESS_STATE_TOP;
mStackSupervisor.comeOutOfSleepIfNeededLocked();
}
mStackSupervisor.applySleepTokensLocked(true /* applyToStacks */);
if (wasSleeping) {
updateOomAdjLocked();
}
} else if (!mSleeping && shouldSleep) {
mSleeping = true;
if (mCurAppTimeTracker != null) {
mCurAppTimeTracker.stop();
}
mTopProcessState = ActivityManager.PROCESS_STATE_TOP_SLEEPING;
mStackSupervisor.goingToSleepLocked();
updateOomAdjLocked();
}
}
/** Pokes the task persister. */
void notifyTaskPersisterLocked(TaskRecord task, boolean flush) {
mRecentTasks.notifyTaskPersisterLocked(task, flush);
}
/**
* Notifies all listeners when the pinned stack animation starts.
*/
@Override
public void notifyPinnedStackAnimationStarted() {
mTaskChangeNotificationController.notifyPinnedStackAnimationStarted();
}
/**
* Notifies all listeners when the pinned stack animation ends.
*/
@Override
public void notifyPinnedStackAnimationEnded() {
mTaskChangeNotificationController.notifyPinnedStackAnimationEnded();
}
@Override
public void notifyCleartextNetwork(int uid, byte[] firstPacket) {
mHandler.obtainMessage(NOTIFY_CLEARTEXT_NETWORK_MSG, uid, 0, firstPacket).sendToTarget();
}
@Override
public boolean shutdown(int timeout) {
if (checkCallingPermission(android.Manifest.permission.SHUTDOWN)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException("Requires permission "
+ android.Manifest.permission.SHUTDOWN);
}
// TODO: Where should the corresponding '1' (start) write go?
StatsLog.write(StatsLog.DEVICE_ON_STATUS_CHANGED, 0);
boolean timedout = false;
synchronized(this) {
mShuttingDown = true;
mStackSupervisor.prepareForShutdownLocked();
updateEventDispatchingLocked();
timedout = mStackSupervisor.shutdownLocked(timeout);
}
mAppOpsService.shutdown();
if (mUsageStatsService != null) {
mUsageStatsService.prepareShutdown();
}
mBatteryStatsService.shutdown();
synchronized (this) {
mProcessStats.shutdownLocked();
notifyTaskPersisterLocked(null, true);
}
return timedout;
}
public final void activitySlept(IBinder token) {
if (DEBUG_ALL) Slog.v(TAG, "Activity slept: token=" + token);
final long origId = Binder.clearCallingIdentity();
synchronized (this) {
final ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r != null) {
mStackSupervisor.activitySleptLocked(r);
}
}
Binder.restoreCallingIdentity(origId);
}
void startRunningVoiceLocked(IVoiceInteractionSession session, int targetUid) {
Slog.d(TAG, "<<< startRunningVoiceLocked()");
mVoiceWakeLock.setWorkSource(new WorkSource(targetUid));
if (mRunningVoice == null || mRunningVoice.asBinder() != session.asBinder()) {
boolean wasRunningVoice = mRunningVoice != null;
mRunningVoice = session;
if (!wasRunningVoice) {
mVoiceWakeLock.acquire();
updateSleepIfNeededLocked();
}
}
}
private void updateEventDispatchingLocked() {
mWindowManager.setEventDispatching(mBooted && !mShuttingDown);
}
@Override
public void setLockScreenShown(boolean showing, int secondaryDisplayShowing) {
if (checkCallingPermission(android.Manifest.permission.DEVICE_POWER)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException("Requires permission "
+ android.Manifest.permission.DEVICE_POWER);
}
synchronized(this) {
long ident = Binder.clearCallingIdentity();
try {
mKeyguardController.setKeyguardShown(showing, secondaryDisplayShowing);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
sendNotifyVrManagerOfKeyguardState(showing);
}
@Override
public void notifyLockedProfile(@UserIdInt int userId) {
try {
if (!AppGlobals.getPackageManager().isUidPrivileged(Binder.getCallingUid())) {
throw new SecurityException("Only privileged app can call notifyLockedProfile");
}
} catch (RemoteException ex) {
throw new SecurityException("Fail to check is caller a privileged app", ex);
}
synchronized (this) {
final long ident = Binder.clearCallingIdentity();
try {
if (mUserController.shouldConfirmCredentials(userId)) {
if (mKeyguardController.isKeyguardLocked()) {
// Showing launcher to avoid user entering credential twice.
final int currentUserId = mUserController.getCurrentUserId();
startHomeActivityLocked(currentUserId, "notifyLockedProfile");
}
mStackSupervisor.lockAllProfileTasks(userId);
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
@Override
public void startConfirmDeviceCredentialIntent(Intent intent, Bundle options) {
enforceCallingPermission(MANAGE_ACTIVITY_STACKS, "startConfirmDeviceCredentialIntent");
synchronized (this) {
final long ident = Binder.clearCallingIdentity();
try {
mActivityStarter.startConfirmCredentialIntent(intent, options);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
@Override
public void stopAppSwitches() {
if (checkCallingPermission(android.Manifest.permission.STOP_APP_SWITCHES)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException("viewquires permission "
+ android.Manifest.permission.STOP_APP_SWITCHES);
}
synchronized(this) {
mAppSwitchesAllowedTime = SystemClock.uptimeMillis()
+ APP_SWITCH_DELAY_TIME;
mDidAppSwitch = false;
mHandler.removeMessages(DO_PENDING_ACTIVITY_LAUNCHES_MSG);
Message msg = mHandler.obtainMessage(DO_PENDING_ACTIVITY_LAUNCHES_MSG);
mHandler.sendMessageDelayed(msg, APP_SWITCH_DELAY_TIME);
}
}
public void resumeAppSwitches() {
if (checkCallingPermission(android.Manifest.permission.STOP_APP_SWITCHES)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException("Requires permission "
+ android.Manifest.permission.STOP_APP_SWITCHES);
}
synchronized(this) {
// Note that we don't execute any pending app switches... we will
// let those wait until either the timeout, or the next start
// activity request.
mAppSwitchesAllowedTime = 0;
}
}
boolean checkAppSwitchAllowedLocked(int sourcePid, int sourceUid,
int callingPid, int callingUid, String name) {
if (mAppSwitchesAllowedTime < SystemClock.uptimeMillis()) {
return true;
}
int perm = checkComponentPermission(
android.Manifest.permission.STOP_APP_SWITCHES, sourcePid,
sourceUid, -1, true);
if (perm == PackageManager.PERMISSION_GRANTED) {
return true;
}
// If the actual IPC caller is different from the logical source, then
// also see if they are allowed to control app switches.
if (callingUid != -1 && callingUid != sourceUid) {
perm = checkComponentPermission(
android.Manifest.permission.STOP_APP_SWITCHES, callingPid,
callingUid, -1, true);
if (perm == PackageManager.PERMISSION_GRANTED) {
return true;
}
}
Slog.w(TAG, name + " request from " + sourceUid + " stopped");
return false;
}
public void setDebugApp(String packageName, boolean waitForDebugger,
boolean persistent) {
enforceCallingPermission(android.Manifest.permission.SET_DEBUG_APP,
"setDebugApp()");
long ident = Binder.clearCallingIdentity();
try {
// Note that this is not really thread safe if there are multiple
// callers into it at the same time, but that's not a situation we
// care about.
if (persistent) {
final ContentResolver resolver = mContext.getContentResolver();
Settings.Global.putString(
resolver, Settings.Global.DEBUG_APP,
packageName);
Settings.Global.putInt(
resolver, Settings.Global.WAIT_FOR_DEBUGGER,
waitForDebugger ? 1 : 0);
}
synchronized (this) {
if (!persistent) {
mOrigDebugApp = mDebugApp;
mOrigWaitForDebugger = mWaitForDebugger;
}
mDebugApp = packageName;
mWaitForDebugger = waitForDebugger;
mDebugTransient = !persistent;
if (packageName != null) {
forceStopPackageLocked(packageName, -1, false, false, true, true,
false, UserHandle.USER_ALL, "set debug app");
}
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
void setTrackAllocationApp(ApplicationInfo app, String processName) {
synchronized (this) {
boolean isDebuggable = "1".equals(SystemProperties.get(SYSTEM_DEBUGGABLE, "0"));
if (!isDebuggable) {
if ((app.flags & ApplicationInfo.FLAG_DEBUGGABLE) == 0) {
throw new SecurityException("Process not debuggable: " + app.packageName);
}
}
mTrackAllocationApp = processName;
}
}
void setProfileApp(ApplicationInfo app, String processName, ProfilerInfo profilerInfo) {
synchronized (this) {
boolean isDebuggable = "1".equals(SystemProperties.get(SYSTEM_DEBUGGABLE, "0"));
if (!isDebuggable) {
if ((app.flags & ApplicationInfo.FLAG_DEBUGGABLE) == 0) {
throw new SecurityException("Process not debuggable: " + app.packageName);
}
}
mProfileApp = processName;
if (mProfilerInfo != null) {
if (mProfilerInfo.profileFd != null) {
try {
mProfilerInfo.profileFd.close();
} catch (IOException e) {
}
}
}
mProfilerInfo = new ProfilerInfo(profilerInfo);
mProfileType = 0;
}
}
void setNativeDebuggingAppLocked(ApplicationInfo app, String processName) {
boolean isDebuggable = "1".equals(SystemProperties.get(SYSTEM_DEBUGGABLE, "0"));
if (!isDebuggable) {
if ((app.flags & ApplicationInfo.FLAG_DEBUGGABLE) == 0) {
throw new SecurityException("Process not debuggable: " + app.packageName);
}
}
mNativeDebuggingApp = processName;
}
@Override
public void setAlwaysFinish(boolean enabled) {
enforceCallingPermission(android.Manifest.permission.SET_ALWAYS_FINISH,
"setAlwaysFinish()");
long ident = Binder.clearCallingIdentity();
try {
Settings.Global.putInt(
mContext.getContentResolver(),
Settings.Global.ALWAYS_FINISH_ACTIVITIES, enabled ? 1 : 0);
synchronized (this) {
mAlwaysFinishActivities = enabled;
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
@Override
public void setActivityController(IActivityController controller, boolean imAMonkey) {
enforceCallingPermission(android.Manifest.permission.SET_ACTIVITY_WATCHER,
"setActivityController()");
synchronized (this) {
mController = controller;
mControllerIsAMonkey = imAMonkey;
Watchdog.getInstance().setActivityController(controller);
}
}
@Override
public void setUserIsMonkey(boolean userIsMonkey) {
synchronized (this) {
synchronized (mPidsSelfLocked) {
final int callingPid = Binder.getCallingPid();
ProcessRecord proc = mPidsSelfLocked.get(callingPid);
if (proc == null) {
throw new SecurityException("Unknown process: " + callingPid);
}
if (proc.instr == null || proc.instr.mUiAutomationConnection == null) {
throw new SecurityException("Only an instrumentation process "
+ "with a UiAutomation can call setUserIsMonkey");
}
}
mUserIsMonkey = userIsMonkey;
}
}
@Override
public boolean isUserAMonkey() {
synchronized (this) {
// If there is a controller also implies the user is a monkey.
return (mUserIsMonkey || (mController != null && mControllerIsAMonkey));
}
}
/**
* @deprecated This method is only used by a few internal components and it will soon be
* replaced by a proper bug report API (which will be restricted to a few, pre-defined apps).
* No new code should be calling it.
*/
@Deprecated
@Override
public void requestBugReport(int bugreportType) {
String extraOptions = null;
switch (bugreportType) {
case ActivityManager.BUGREPORT_OPTION_FULL:
// Default options.
break;
case ActivityManager.BUGREPORT_OPTION_INTERACTIVE:
extraOptions = "bugreportplus";
break;
case ActivityManager.BUGREPORT_OPTION_REMOTE:
extraOptions = "bugreportremote";
break;
case ActivityManager.BUGREPORT_OPTION_WEAR:
extraOptions = "bugreportwear";
break;
case ActivityManager.BUGREPORT_OPTION_TELEPHONY:
extraOptions = "bugreporttelephony";
break;
default:
throw new IllegalArgumentException("Provided bugreport type is not correct, value: "
+ bugreportType);
}
// Always log caller, even if it does not have permission to dump.
String type = extraOptions == null ? "bugreport" : extraOptions;
Slog.i(TAG, type + " requested by UID " + Binder.getCallingUid());
enforceCallingPermission(android.Manifest.permission.DUMP, "requestBugReport");
if (extraOptions != null) {
SystemProperties.set("dumpstate.options", extraOptions);
}
SystemProperties.set("ctl.start", "bugreport");
}
/**
* @deprecated This method is only used by a few internal components and it will soon be
* replaced by a proper bug report API (which will be restricted to a few, pre-defined apps).
* No new code should be calling it.
*/
@Deprecated
@Override
public void requestTelephonyBugReport(String shareTitle, String shareDescription) {
if (!TextUtils.isEmpty(shareTitle)) {
if (shareTitle.length() > MAX_BUGREPORT_TITLE_SIZE) {
String errorStr = "shareTitle should be less than " +
MAX_BUGREPORT_TITLE_SIZE + " characters";
throw new IllegalArgumentException(errorStr);
} else {
if (!TextUtils.isEmpty(shareDescription)) {
int length;
try {
length = shareDescription.getBytes("UTF-8").length;
} catch (UnsupportedEncodingException e) {
String errorStr = "shareDescription: UnsupportedEncodingException";
throw new IllegalArgumentException(errorStr);
}
if (length > SystemProperties.PROP_VALUE_MAX) {
String errorStr = "shareTitle should be less than " +
SystemProperties.PROP_VALUE_MAX + " bytes";
throw new IllegalArgumentException(errorStr);
} else {
SystemProperties.set("dumpstate.options.description", shareDescription);
}
}
SystemProperties.set("dumpstate.options.title", shareTitle);
}
}
Slog.d(TAG, "Bugreport notification title " + shareTitle
+ " description " + shareDescription);
requestBugReport(ActivityManager.BUGREPORT_OPTION_TELEPHONY);
}
public static long getInputDispatchingTimeoutLocked(ActivityRecord r) {
return r != null ? getInputDispatchingTimeoutLocked(r.app) : KEY_DISPATCHING_TIMEOUT;
}
public static long getInputDispatchingTimeoutLocked(ProcessRecord r) {
if (r != null && (r.instr != null || r.usingWrapper)) {
return INSTRUMENTATION_KEY_DISPATCHING_TIMEOUT;
}
return KEY_DISPATCHING_TIMEOUT;
}
@Override
public long inputDispatchingTimedOut(int pid, final boolean aboveSystem, String reason) {
if (checkCallingPermission(android.Manifest.permission.FILTER_EVENTS)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException("Requires permission "
+ android.Manifest.permission.FILTER_EVENTS);
}
ProcessRecord proc;
long timeout;
synchronized (this) {
synchronized (mPidsSelfLocked) {
proc = mPidsSelfLocked.get(pid);
}
timeout = getInputDispatchingTimeoutLocked(proc);
}
if (inputDispatchingTimedOut(proc, null, null, aboveSystem, reason)) {
return -1;
}
return timeout;
}
/**
* Handle input dispatching timeouts.
* Returns whether input dispatching should be aborted or not.
*/
public boolean inputDispatchingTimedOut(final ProcessRecord proc,
final ActivityRecord activity, final ActivityRecord parent,
final boolean aboveSystem, String reason) {
if (checkCallingPermission(android.Manifest.permission.FILTER_EVENTS)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException("Requires permission "
+ android.Manifest.permission.FILTER_EVENTS);
}
final String annotation;
if (reason == null) {
annotation = "Input dispatching timed out";
} else {
annotation = "Input dispatching timed out (" + reason + ")";
}
if (proc != null) {
synchronized (this) {
if (proc.debugging) {
return false;
}
if (proc.instr != null) {
Bundle info = new Bundle();
info.putString("shortMsg", "keyDispatchingTimedOut");
info.putString("longMsg", annotation);
finishInstrumentationLocked(proc, Activity.RESULT_CANCELED, info);
return true;
}
}
mHandler.post(new Runnable() {
@Override
public void run() {
mAppErrors.appNotResponding(proc, activity, parent, aboveSystem, annotation);
}
});
}
return true;
}
@Override
public Bundle getAssistContextExtras(int requestType) {
PendingAssistExtras pae = enqueueAssistContext(requestType, null, null, null,
null, null, true /* focused */, true /* newSessionId */,
UserHandle.getCallingUserId(), null, PENDING_ASSIST_EXTRAS_TIMEOUT, 0);
if (pae == null) {
return null;
}
synchronized (pae) {
while (!pae.haveResult) {
try {
pae.wait();
} catch (InterruptedException e) {
}
}
}
synchronized (this) {
buildAssistBundleLocked(pae, pae.result);
mPendingAssistExtras.remove(pae);
mUiHandler.removeCallbacks(pae);
}
return pae.extras;
}
@Override
public boolean isAssistDataAllowedOnCurrentActivity() {
int userId;
synchronized (this) {
final ActivityStack focusedStack = getFocusedStack();
if (focusedStack == null || focusedStack.isActivityTypeAssistant()) {
return false;
}
final ActivityRecord activity = focusedStack.topActivity();
if (activity == null) {
return false;
}
userId = activity.userId;
}
DevicePolicyManager dpm = (DevicePolicyManager) mContext.getSystemService(
Context.DEVICE_POLICY_SERVICE);
return (dpm == null) || (!dpm.getScreenCaptureDisabled(null, userId));
}
@Override
public boolean showAssistFromActivity(IBinder token, Bundle args) {
long ident = Binder.clearCallingIdentity();
try {
synchronized (this) {
ActivityRecord caller = ActivityRecord.forTokenLocked(token);
ActivityRecord top = getFocusedStack().topActivity();
if (top != caller) {
Slog.w(TAG, "showAssistFromActivity failed: caller " + caller
+ " is not current top " + top);
return false;
}
if (!top.nowVisible) {
Slog.w(TAG, "showAssistFromActivity failed: caller " + caller
+ " is not visible");
return false;
}
}
return mAssistUtils.showSessionForActiveService(args, SHOW_SOURCE_APPLICATION, null,
token);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
@Override
public boolean requestAssistContextExtras(int requestType, IResultReceiver receiver,
Bundle receiverExtras, IBinder activityToken, boolean focused, boolean newSessionId) {
return enqueueAssistContext(requestType, null, null, receiver, receiverExtras,
activityToken, focused, newSessionId, UserHandle.getCallingUserId(), null,
PENDING_ASSIST_EXTRAS_LONG_TIMEOUT, 0) != null;
}
@Override
public boolean requestAutofillData(IResultReceiver receiver, Bundle receiverExtras,
IBinder activityToken, int flags) {
return enqueueAssistContext(ActivityManager.ASSIST_CONTEXT_AUTOFILL, null, null,
receiver, receiverExtras, activityToken, true, true, UserHandle.getCallingUserId(),
null, PENDING_AUTOFILL_ASSIST_STRUCTURE_TIMEOUT, flags) != null;
}
private PendingAssistExtras enqueueAssistContext(int requestType, Intent intent, String hint,
IResultReceiver receiver, Bundle receiverExtras, IBinder activityToken,
boolean focused, boolean newSessionId, int userHandle, Bundle args, long timeout,
int flags) {
enforceCallingPermission(android.Manifest.permission.GET_TOP_ACTIVITY_INFO,
"enqueueAssistContext()");
synchronized (this) {
ActivityRecord activity = getFocusedStack().topActivity();
if (activity == null) {
Slog.w(TAG, "getAssistContextExtras failed: no top activity");
return null;
}
if (activity.app == null || activity.app.thread == null) {
Slog.w(TAG, "getAssistContextExtras failed: no process for " + activity);
return null;
}
if (focused) {
if (activityToken != null) {
ActivityRecord caller = ActivityRecord.forTokenLocked(activityToken);
if (activity != caller) {
Slog.w(TAG, "enqueueAssistContext failed: caller " + caller
+ " is not current top " + activity);
return null;
}
}
} else {
activity = ActivityRecord.forTokenLocked(activityToken);
if (activity == null) {
Slog.w(TAG, "enqueueAssistContext failed: activity for token=" + activityToken
+ " couldn't be found");
return null;
}
if (activity.app == null || activity.app.thread == null) {
Slog.w(TAG, "enqueueAssistContext failed: no process for " + activity);
return null;
}
}
PendingAssistExtras pae;
Bundle extras = new Bundle();
if (args != null) {
extras.putAll(args);
}
extras.putString(Intent.EXTRA_ASSIST_PACKAGE, activity.packageName);
extras.putInt(Intent.EXTRA_ASSIST_UID, activity.app.uid);
pae = new PendingAssistExtras(activity, extras, intent, hint, receiver, receiverExtras,
userHandle);
pae.isHome = activity.isActivityTypeHome();
// Increment the sessionId if necessary
if (newSessionId) {
mViSessionId++;
}
try {
activity.app.thread.requestAssistContextExtras(activity.appToken, pae, requestType,
mViSessionId, flags);
mPendingAssistExtras.add(pae);
mUiHandler.postDelayed(pae, timeout);
} catch (RemoteException e) {
Slog.w(TAG, "getAssistContextExtras failed: crash calling " + activity);
return null;
}
return pae;
}
}
void pendingAssistExtrasTimedOut(PendingAssistExtras pae) {
IResultReceiver receiver;
synchronized (this) {
mPendingAssistExtras.remove(pae);
receiver = pae.receiver;
}
if (receiver != null) {
// Caller wants result sent back to them.
Bundle sendBundle = new Bundle();
// At least return the receiver extras
sendBundle.putBundle(VoiceInteractionSession.KEY_RECEIVER_EXTRAS,
pae.receiverExtras);
try {
pae.receiver.send(0, sendBundle);
} catch (RemoteException e) {
}
}
}
private void buildAssistBundleLocked(PendingAssistExtras pae, Bundle result) {
if (result != null) {
pae.extras.putBundle(Intent.EXTRA_ASSIST_CONTEXT, result);
}
if (pae.hint != null) {
pae.extras.putBoolean(pae.hint, true);
}
}
/** Called from an app when assist data is ready. */
@Override
public void reportAssistContextExtras(IBinder token, Bundle extras, AssistStructure structure,
AssistContent content, Uri referrer) {
PendingAssistExtras pae = (PendingAssistExtras)token;
synchronized (pae) {
pae.result = extras;
pae.structure = structure;
pae.content = content;
if (referrer != null) {
pae.extras.putParcelable(Intent.EXTRA_REFERRER, referrer);
}
if (structure != null) {
structure.setHomeActivity(pae.isHome);
}
pae.haveResult = true;
pae.notifyAll();
if (pae.intent == null && pae.receiver == null) {
// Caller is just waiting for the result.
return;
}
}
// We are now ready to launch the assist activity.
IResultReceiver sendReceiver = null;
Bundle sendBundle = null;
synchronized (this) {
buildAssistBundleLocked(pae, extras);
boolean exists = mPendingAssistExtras.remove(pae);
mUiHandler.removeCallbacks(pae);
if (!exists) {
// Timed out.
return;
}
if ((sendReceiver=pae.receiver) != null) {
// Caller wants result sent back to them.
sendBundle = new Bundle();
sendBundle.putBundle(VoiceInteractionSession.KEY_DATA, pae.extras);
sendBundle.putParcelable(VoiceInteractionSession.KEY_STRUCTURE, pae.structure);
sendBundle.putParcelable(VoiceInteractionSession.KEY_CONTENT, pae.content);
sendBundle.putBundle(VoiceInteractionSession.KEY_RECEIVER_EXTRAS,
pae.receiverExtras);
}
}
if (sendReceiver != null) {
try {
sendReceiver.send(0, sendBundle);
} catch (RemoteException e) {
}
return;
}
final long ident = Binder.clearCallingIdentity();
try {
if (TextUtils.equals(pae.intent.getAction(),
android.service.voice.VoiceInteractionService.SERVICE_INTERFACE)) {
pae.intent.putExtras(pae.extras);
mContext.startServiceAsUser(pae.intent, new UserHandle(pae.userHandle));
} else {
pae.intent.replaceExtras(pae.extras);
pae.intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
| Intent.FLAG_ACTIVITY_SINGLE_TOP
| Intent.FLAG_ACTIVITY_CLEAR_TOP);
closeSystemDialogs("assist");
try {
mContext.startActivityAsUser(pae.intent, new UserHandle(pae.userHandle));
} catch (ActivityNotFoundException e) {
Slog.w(TAG, "No activity to handle assist action.", e);
}
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
public boolean launchAssistIntent(Intent intent, int requestType, String hint, int userHandle,
Bundle args) {
return enqueueAssistContext(requestType, intent, hint, null, null, null,
true /* focused */, true /* newSessionId */, userHandle, args,
PENDING_ASSIST_EXTRAS_TIMEOUT, 0) != null;
}
public void registerProcessObserver(IProcessObserver observer) {
enforceCallingPermission(android.Manifest.permission.SET_ACTIVITY_WATCHER,
"registerProcessObserver()");
synchronized (this) {
mProcessObservers.register(observer);
}
}
@Override
public void unregisterProcessObserver(IProcessObserver observer) {
synchronized (this) {
mProcessObservers.unregister(observer);
}
}
@Override
public int getUidProcessState(int uid, String callingPackage) {
if (!hasUsageStatsPermission(callingPackage)) {
enforceCallingPermission(android.Manifest.permission.PACKAGE_USAGE_STATS,
"getUidProcessState");
}
synchronized (this) {
UidRecord uidRec = mActiveUids.get(uid);
return uidRec != null ? uidRec.curProcState : ActivityManager.PROCESS_STATE_NONEXISTENT;
}
}
@Override
public void registerUidObserver(IUidObserver observer, int which, int cutpoint,
String callingPackage) {
if (!hasUsageStatsPermission(callingPackage)) {
enforceCallingPermission(android.Manifest.permission.PACKAGE_USAGE_STATS,
"registerUidObserver");
}
synchronized (this) {
mUidObservers.register(observer, new UidObserverRegistration(Binder.getCallingUid(),
callingPackage, which, cutpoint));
}
}
@Override
public void unregisterUidObserver(IUidObserver observer) {
synchronized (this) {
mUidObservers.unregister(observer);
}
}
@Override
public boolean convertFromTranslucent(IBinder token) {
final long origId = Binder.clearCallingIdentity();
try {
synchronized (this) {
final ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r == null) {
return false;
}
final boolean translucentChanged = r.changeWindowTranslucency(true);
if (translucentChanged) {
mStackSupervisor.ensureActivitiesVisibleLocked(null, 0, !PRESERVE_WINDOWS);
}
mWindowManager.setAppFullscreen(token, true);
return translucentChanged;
}
} finally {
Binder.restoreCallingIdentity(origId);
}
}
@Override
public boolean convertToTranslucent(IBinder token, Bundle options) {
final long origId = Binder.clearCallingIdentity();
try {
synchronized (this) {
final ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r == null) {
return false;
}
final TaskRecord task = r.getTask();
int index = task.mActivities.lastIndexOf(r);
if (index > 0) {
ActivityRecord under = task.mActivities.get(index - 1);
under.returningOptions = ActivityOptions.fromBundle(options);
}
final boolean translucentChanged = r.changeWindowTranslucency(false);
if (translucentChanged) {
r.getStack().convertActivityToTranslucent(r);
}
mStackSupervisor.ensureActivitiesVisibleLocked(null, 0, !PRESERVE_WINDOWS);
mWindowManager.setAppFullscreen(token, false);
return translucentChanged;
}
} finally {
Binder.restoreCallingIdentity(origId);
}
}
@Override
public Bundle getActivityOptions(IBinder token) {
final long origId = Binder.clearCallingIdentity();
try {
synchronized (this) {
final ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r != null) {
final ActivityOptions activityOptions = r.takeOptionsLocked();
return activityOptions == null ? null : activityOptions.toBundle();
}
return null;
}
} finally {
Binder.restoreCallingIdentity(origId);
}
}
@Override
public void setImmersive(IBinder token, boolean immersive) {
synchronized(this) {
final ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r == null) {
throw new IllegalArgumentException();
}
r.immersive = immersive;
// update associated state if we're frontmost
if (r == mStackSupervisor.getResumedActivityLocked()) {
if (DEBUG_IMMERSIVE) Slog.d(TAG_IMMERSIVE, "Frontmost changed immersion: "+ r);
applyUpdateLockStateLocked(r);
}
}
}
@Override
public boolean isImmersive(IBinder token) {
synchronized (this) {
ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r == null) {
throw new IllegalArgumentException();
}
return r.immersive;
}
}
@Override
public void setVrThread(int tid) {
enforceSystemHasVrFeature();
synchronized (this) {
synchronized (mPidsSelfLocked) {
final int pid = Binder.getCallingPid();
final ProcessRecord proc = mPidsSelfLocked.get(pid);
mVrController.setVrThreadLocked(tid, pid, proc);
}
}
}
@Override
public void setPersistentVrThread(int tid) {
if (checkCallingPermission(permission.RESTRICTED_VR_ACCESS) != PERMISSION_GRANTED) {
final String msg = "Permission Denial: setPersistentVrThread() from pid="
+ Binder.getCallingPid()
+ ", uid=" + Binder.getCallingUid()
+ " requires " + permission.RESTRICTED_VR_ACCESS;
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
enforceSystemHasVrFeature();
synchronized (this) {
synchronized (mPidsSelfLocked) {
final int pid = Binder.getCallingPid();
final ProcessRecord proc = mPidsSelfLocked.get(pid);
mVrController.setPersistentVrThreadLocked(tid, pid, proc);
}
}
}
/**
* Schedule the given thread a normal scheduling priority.
*
* @param tid the tid of the thread to adjust the scheduling of.
* @param suppressLogs {@code true} if any error logging should be disabled.
*
* @return {@code true} if this succeeded.
*/
static boolean scheduleAsRegularPriority(int tid, boolean suppressLogs) {
try {
Process.setThreadScheduler(tid, Process.SCHED_OTHER, 0);
return true;
} catch (IllegalArgumentException e) {
if (!suppressLogs) {
Slog.w(TAG, "Failed to set scheduling policy, thread does not exist:\n" + e);
}
} catch (SecurityException e) {
if (!suppressLogs) {
Slog.w(TAG, "Failed to set scheduling policy, not allowed:\n" + e);
}
}
return false;
}
/**
* Schedule the given thread an FIFO scheduling priority.
*
* @param tid the tid of the thread to adjust the scheduling of.
* @param suppressLogs {@code true} if any error logging should be disabled.
*
* @return {@code true} if this succeeded.
*/
static boolean scheduleAsFifoPriority(int tid, boolean suppressLogs) {
try {
Process.setThreadScheduler(tid, Process.SCHED_FIFO | Process.SCHED_RESET_ON_FORK, 1);
return true;
} catch (IllegalArgumentException e) {
if (!suppressLogs) {
Slog.w(TAG, "Failed to set scheduling policy, thread does not exist:\n" + e);
}
} catch (SecurityException e) {
if (!suppressLogs) {
Slog.w(TAG, "Failed to set scheduling policy, not allowed:\n" + e);
}
}
return false;
}
/**
* Check that we have the features required for VR-related API calls, and throw an exception if
* not.
*/
private void enforceSystemHasVrFeature() {
if (!mContext.getPackageManager().hasSystemFeature(PackageManager.FEATURE_VR_MODE)) {
throw new UnsupportedOperationException("VR mode not supported on this device!");
}
}
@Override
public void setRenderThread(int tid) {
synchronized (this) {
ProcessRecord proc;
int pid = Binder.getCallingPid();
if (pid == Process.myPid()) {
demoteSystemServerRenderThread(tid);
return;
}
synchronized (mPidsSelfLocked) {
proc = mPidsSelfLocked.get(pid);
if (proc != null && proc.renderThreadTid == 0 && tid > 0) {
// ensure the tid belongs to the process
if (!isThreadInProcess(pid, tid)) {
throw new IllegalArgumentException(
"Render thread does not belong to process");
}
proc.renderThreadTid = tid;
if (DEBUG_OOM_ADJ) {
Slog.d("UI_FIFO", "Set RenderThread tid " + tid + " for pid " + pid);
}
// promote to FIFO now
if (proc.curSchedGroup == ProcessList.SCHED_GROUP_TOP_APP) {
if (DEBUG_OOM_ADJ) Slog.d("UI_FIFO", "Promoting " + tid + "out of band");
if (mUseFifoUiScheduling) {
setThreadScheduler(proc.renderThreadTid,
SCHED_FIFO | SCHED_RESET_ON_FORK, 1);
} else {
setThreadPriority(proc.renderThreadTid, TOP_APP_PRIORITY_BOOST);
}
}
} else {
if (DEBUG_OOM_ADJ) {
Slog.d("UI_FIFO", "Didn't set thread from setRenderThread? " +
"PID: " + pid + ", TID: " + tid + " FIFO: " +
mUseFifoUiScheduling);
}
}
}
}
}
/**
* We only use RenderThread in system_server to store task snapshots to the disk, which should
* happen in the background. Thus, demote render thread from system_server to a lower priority.
*
* @param tid the tid of the RenderThread
*/
private void demoteSystemServerRenderThread(int tid) {
setThreadPriority(tid, Process.THREAD_PRIORITY_BACKGROUND);
}
@Override
public int setVrMode(IBinder token, boolean enabled, ComponentName packageName) {
if (!mContext.getPackageManager().hasSystemFeature(PackageManager.FEATURE_VR_MODE)) {
throw new UnsupportedOperationException("VR mode not supported on this device!");
}
final VrManagerInternal vrService = LocalServices.getService(VrManagerInternal.class);
ActivityRecord r;
synchronized (this) {
r = ActivityRecord.isInStackLocked(token);
}
if (r == null) {
throw new IllegalArgumentException();
}
int err;
if ((err = vrService.hasVrPackage(packageName, r.userId)) !=
VrManagerInternal.NO_ERROR) {
return err;
}
synchronized(this) {
r.requestedVrComponent = (enabled) ? packageName : null;
// Update associated state if this activity is currently focused
if (r == mStackSupervisor.getResumedActivityLocked()) {
applyUpdateVrModeLocked(r);
}
return 0;
}
}
@Override
public boolean isVrModePackageEnabled(ComponentName packageName) {
if (!mContext.getPackageManager().hasSystemFeature(PackageManager.FEATURE_VR_MODE)) {
throw new UnsupportedOperationException("VR mode not supported on this device!");
}
final VrManagerInternal vrService = LocalServices.getService(VrManagerInternal.class);
return vrService.hasVrPackage(packageName, UserHandle.getCallingUserId()) ==
VrManagerInternal.NO_ERROR;
}
public boolean isTopActivityImmersive() {
enforceNotIsolatedCaller("startActivity");
synchronized (this) {
ActivityRecord r = getFocusedStack().topRunningActivityLocked();
return (r != null) ? r.immersive : false;
}
}
/**
* @return whether the system should disable UI modes incompatible with VR mode.
*/
boolean shouldDisableNonVrUiLocked() {
return mVrController.shouldDisableNonVrUiLocked();
}
@Override
public boolean isTopOfTask(IBinder token) {
synchronized (this) {
ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r == null) {
throw new IllegalArgumentException();
}
return r.getTask().getTopActivity() == r;
}
}
@Override
public void setHasTopUi(boolean hasTopUi) throws RemoteException {
if (checkCallingPermission(permission.INTERNAL_SYSTEM_WINDOW) != PERMISSION_GRANTED) {
String msg = "Permission Denial: setHasTopUi() from pid="
+ Binder.getCallingPid()
+ ", uid=" + Binder.getCallingUid()
+ " requires " + permission.INTERNAL_SYSTEM_WINDOW;
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
final int pid = Binder.getCallingPid();
final long origId = Binder.clearCallingIdentity();
try {
synchronized (this) {
boolean changed = false;
ProcessRecord pr;
synchronized (mPidsSelfLocked) {
pr = mPidsSelfLocked.get(pid);
if (pr == null) {
Slog.w(TAG, "setHasTopUi called on unknown pid: " + pid);
return;
}
if (pr.hasTopUi != hasTopUi) {
if (DEBUG_OOM_ADJ) {
Slog.d(TAG, "Setting hasTopUi=" + hasTopUi + " for pid=" + pid);
}
pr.hasTopUi = hasTopUi;
changed = true;
}
}
if (changed) {
updateOomAdjLocked(pr, true);
}
}
} finally {
Binder.restoreCallingIdentity(origId);
}
}
public final void enterSafeMode() {
synchronized(this) {
// It only makes sense to do this before the system is ready
// and started launching other packages.
if (!mSystemReady) {
try {
AppGlobals.getPackageManager().enterSafeMode();
} catch (RemoteException e) {
}
}
mSafeMode = true;
}
}
public final void showSafeModeOverlay() {
View v = LayoutInflater.from(mContext).inflate(
com.android.internal.R.layout.safe_mode, null);
WindowManager.LayoutParams lp = new WindowManager.LayoutParams();
lp.type = WindowManager.LayoutParams.TYPE_SECURE_SYSTEM_OVERLAY;
lp.width = WindowManager.LayoutParams.WRAP_CONTENT;
lp.height = WindowManager.LayoutParams.WRAP_CONTENT;
lp.gravity = Gravity.BOTTOM | Gravity.START;
lp.format = v.getBackground().getOpacity();
lp.flags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
| WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE;
lp.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_SHOW_FOR_ALL_USERS;
((WindowManager)mContext.getSystemService(
Context.WINDOW_SERVICE)).addView(v, lp);
}
public void noteWakeupAlarm(IIntentSender sender, int sourceUid, String sourcePkg, String tag) {
if (sender != null && !(sender instanceof PendingIntentRecord)) {
return;
}
final PendingIntentRecord rec = (PendingIntentRecord)sender;
final BatteryStatsImpl stats = mBatteryStatsService.getActiveStatistics();
synchronized (stats) {
if (mBatteryStatsService.isOnBattery()) {
mBatteryStatsService.enforceCallingPermission();
int MY_UID = Binder.getCallingUid();
final int uid;
if (sender == null) {
uid = sourceUid;
} else {
uid = rec.uid == MY_UID ? SYSTEM_UID : rec.uid;
}
BatteryStatsImpl.Uid.Pkg pkg =
stats.getPackageStatsLocked(sourceUid >= 0 ? sourceUid : uid,
sourcePkg != null ? sourcePkg : rec.key.packageName);
pkg.noteWakeupAlarmLocked(tag);
StatsLog.write(StatsLog.WAKEUP_ALARM_OCCURRED, sourceUid >= 0 ? sourceUid : uid);
}
}
}
public void noteAlarmStart(IIntentSender sender, int sourceUid, String tag) {
if (sender != null && !(sender instanceof PendingIntentRecord)) {
return;
}
final PendingIntentRecord rec = (PendingIntentRecord)sender;
final BatteryStatsImpl stats = mBatteryStatsService.getActiveStatistics();
synchronized (stats) {
mBatteryStatsService.enforceCallingPermission();
int MY_UID = Binder.getCallingUid();
final int uid;
if (sender == null) {
uid = sourceUid;
} else {
uid = rec.uid == MY_UID ? SYSTEM_UID : rec.uid;
}
mBatteryStatsService.noteAlarmStart(tag, sourceUid >= 0 ? sourceUid : uid);
}
}
public void noteAlarmFinish(IIntentSender sender, int sourceUid, String tag) {
if (sender != null && !(sender instanceof PendingIntentRecord)) {
return;
}
final PendingIntentRecord rec = (PendingIntentRecord)sender;
final BatteryStatsImpl stats = mBatteryStatsService.getActiveStatistics();
synchronized (stats) {
mBatteryStatsService.enforceCallingPermission();
int MY_UID = Binder.getCallingUid();
final int uid;
if (sender == null) {
uid = sourceUid;
} else {
uid = rec.uid == MY_UID ? SYSTEM_UID : rec.uid;
}
mBatteryStatsService.noteAlarmFinish(tag, sourceUid >= 0 ? sourceUid : uid);
}
}
public boolean killPids(int[] pids, String pReason, boolean secure) {
if (Binder.getCallingUid() != SYSTEM_UID) {
throw new SecurityException("killPids only available to the system");
}
String reason = (pReason == null) ? "Unknown" : pReason;
// XXX Note: don't acquire main activity lock here, because the window
// manager calls in with its locks held.
boolean killed = false;
synchronized (mPidsSelfLocked) {
int worstType = 0;
for (int i=0; i<pids.length; i++) {
ProcessRecord proc = mPidsSelfLocked.get(pids[i]);
if (proc != null) {
int type = proc.setAdj;
if (type > worstType) {
worstType = type;
}
}
}
// If the worst oom_adj is somewhere in the cached proc LRU range,
// then constrain it so we will kill all cached procs.
if (worstType < ProcessList.CACHED_APP_MAX_ADJ
&& worstType > ProcessList.CACHED_APP_MIN_ADJ) {
worstType = ProcessList.CACHED_APP_MIN_ADJ;
}
// If this is not a secure call, don't let it kill processes that
// are important.
if (!secure && worstType < ProcessList.SERVICE_ADJ) {
worstType = ProcessList.SERVICE_ADJ;
}
Slog.w(TAG, "Killing processes " + reason + " at adjustment " + worstType);
for (int i=0; i<pids.length; i++) {
ProcessRecord proc = mPidsSelfLocked.get(pids[i]);
if (proc == null) {
continue;
}
int adj = proc.setAdj;
if (adj >= worstType && !proc.killedByAm) {
proc.kill(reason, true);
killed = true;
}
}
}
return killed;
}
@Override
public void killUid(int appId, int userId, String reason) {
enforceCallingPermission(Manifest.permission.KILL_UID, "killUid");
synchronized (this) {
final long identity = Binder.clearCallingIdentity();
try {
killPackageProcessesLocked(null, appId, userId,
ProcessList.PERSISTENT_PROC_ADJ, false, true, true, true,
reason != null ? reason : "kill uid");
} finally {
Binder.restoreCallingIdentity(identity);
}
}
}
@Override
public boolean killProcessesBelowForeground(String reason) {
if (Binder.getCallingUid() != SYSTEM_UID) {
throw new SecurityException("killProcessesBelowForeground() only available to system");
}
return killProcessesBelowAdj(ProcessList.FOREGROUND_APP_ADJ, reason);
}
private boolean killProcessesBelowAdj(int belowAdj, String reason) {
if (Binder.getCallingUid() != SYSTEM_UID) {
throw new SecurityException("killProcessesBelowAdj() only available to system");
}
boolean killed = false;
synchronized (mPidsSelfLocked) {
final int size = mPidsSelfLocked.size();
for (int i = 0; i < size; i++) {
final int pid = mPidsSelfLocked.keyAt(i);
final ProcessRecord proc = mPidsSelfLocked.valueAt(i);
if (proc == null) continue;
final int adj = proc.setAdj;
if (adj > belowAdj && !proc.killedByAm) {
proc.kill(reason, true);
killed = true;
}
}
}
return killed;
}
@Override
public void hang(final IBinder who, boolean allowRestart) {
if (checkCallingPermission(android.Manifest.permission.SET_ACTIVITY_WATCHER)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException("Requires permission "
+ android.Manifest.permission.SET_ACTIVITY_WATCHER);
}
final IBinder.DeathRecipient death = new DeathRecipient() {
@Override
public void binderDied() {
synchronized (this) {
notifyAll();
}
}
};
try {
who.linkToDeath(death, 0);
} catch (RemoteException e) {
Slog.w(TAG, "hang: given caller IBinder is already dead.");
return;
}
synchronized (this) {
Watchdog.getInstance().setAllowRestart(allowRestart);
Slog.i(TAG, "Hanging system process at request of pid " + Binder.getCallingPid());
synchronized (death) {
while (who.isBinderAlive()) {
try {
death.wait();
} catch (InterruptedException e) {
}
}
}
Watchdog.getInstance().setAllowRestart(true);
}
}
@Override
public void restart() {
if (checkCallingPermission(android.Manifest.permission.SET_ACTIVITY_WATCHER)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException("Requires permission "
+ android.Manifest.permission.SET_ACTIVITY_WATCHER);
}
Log.i(TAG, "Sending shutdown broadcast...");
BroadcastReceiver br = new BroadcastReceiver() {
@Override public void onReceive(Context context, Intent intent) {
// Now the broadcast is done, finish up the low-level shutdown.
Log.i(TAG, "Shutting down activity manager...");
shutdown(10000);
Log.i(TAG, "Shutdown complete, restarting!");
killProcess(myPid());
System.exit(10);
}
};
// First send the high-level shut down broadcast.
Intent intent = new Intent(Intent.ACTION_SHUTDOWN);
intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
intent.putExtra(Intent.EXTRA_SHUTDOWN_USERSPACE_ONLY, true);
/* For now we are not doing a clean shutdown, because things seem to get unhappy.
mContext.sendOrderedBroadcastAsUser(intent,
UserHandle.ALL, null, br, mHandler, 0, null, null);
*/
br.onReceive(mContext, intent);
}
private long getLowRamTimeSinceIdle(long now) {
return mLowRamTimeSinceLastIdle + (mLowRamStartTime > 0 ? (now-mLowRamStartTime) : 0);
}
@Override
public void performIdleMaintenance() {
if (checkCallingPermission(android.Manifest.permission.SET_ACTIVITY_WATCHER)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException("Requires permission "
+ android.Manifest.permission.SET_ACTIVITY_WATCHER);
}
synchronized (this) {
final long now = SystemClock.uptimeMillis();
final long timeSinceLastIdle = now - mLastIdleTime;
final long lowRamSinceLastIdle = getLowRamTimeSinceIdle(now);
mLastIdleTime = now;
mLowRamTimeSinceLastIdle = 0;
if (mLowRamStartTime != 0) {
mLowRamStartTime = now;
}
StringBuilder sb = new StringBuilder(128);
sb.append("Idle maintenance over ");
TimeUtils.formatDuration(timeSinceLastIdle, sb);
sb.append(" low RAM for ");
TimeUtils.formatDuration(lowRamSinceLastIdle, sb);
Slog.i(TAG, sb.toString());
// If at least 1/3 of our time since the last idle period has been spent
// with RAM low, then we want to kill processes.
boolean doKilling = lowRamSinceLastIdle > (timeSinceLastIdle/3);
for (int i = mLruProcesses.size() - 1 ; i >= 0 ; i--) {
ProcessRecord proc = mLruProcesses.get(i);
if (proc.notCachedSinceIdle) {
if (proc.setProcState != ActivityManager.PROCESS_STATE_TOP_SLEEPING
&& proc.setProcState >= ActivityManager.PROCESS_STATE_FOREGROUND_SERVICE
&& proc.setProcState <= ActivityManager.PROCESS_STATE_SERVICE) {
if (doKilling && proc.initialIdlePss != 0
&& proc.lastPss > ((proc.initialIdlePss*3)/2)) {
sb = new StringBuilder(128);
sb.append("Kill");
sb.append(proc.processName);
sb.append(" in idle maint: pss=");
sb.append(proc.lastPss);
sb.append(", swapPss=");
sb.append(proc.lastSwapPss);
sb.append(", initialPss=");
sb.append(proc.initialIdlePss);
sb.append(", period=");
TimeUtils.formatDuration(timeSinceLastIdle, sb);
sb.append(", lowRamPeriod=");
TimeUtils.formatDuration(lowRamSinceLastIdle, sb);
Slog.wtfQuiet(TAG, sb.toString());
proc.kill("idle maint (pss " + proc.lastPss
+ " from " + proc.initialIdlePss + ")", true);
}
}
} else if (proc.setProcState < ActivityManager.PROCESS_STATE_HOME
&& proc.setProcState >= ActivityManager.PROCESS_STATE_PERSISTENT) {
proc.notCachedSinceIdle = true;
proc.initialIdlePss = 0;
proc.nextPssTime = ProcessList.computeNextPssTime(proc.setProcState, true,
mTestPssMode, isSleepingLocked(), now);
}
}
mHandler.removeMessages(REQUEST_ALL_PSS_MSG);
mHandler.sendEmptyMessageDelayed(REQUEST_ALL_PSS_MSG, 2*60*1000);
}
}
@Override
public void sendIdleJobTrigger() {
if (checkCallingPermission(android.Manifest.permission.SET_ACTIVITY_WATCHER)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException("Requires permission "
+ android.Manifest.permission.SET_ACTIVITY_WATCHER);
}
final long ident = Binder.clearCallingIdentity();
try {
Intent intent = new Intent(ACTION_TRIGGER_IDLE)
.setPackage("android")
.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY);
broadcastIntent(null, intent, null, null, 0, null, null, null,
android.app.AppOpsManager.OP_NONE, null, true, false, UserHandle.USER_ALL);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
private void retrieveSettings() {
final ContentResolver resolver = mContext.getContentResolver();
final boolean freeformWindowManagement =
mContext.getPackageManager().hasSystemFeature(FEATURE_FREEFORM_WINDOW_MANAGEMENT)
|| Settings.Global.getInt(
resolver, DEVELOPMENT_ENABLE_FREEFORM_WINDOWS_SUPPORT, 0) != 0;
final boolean supportsMultiWindow = ActivityManager.supportsMultiWindow(mContext);
final boolean supportsPictureInPicture = supportsMultiWindow &&
mContext.getPackageManager().hasSystemFeature(FEATURE_PICTURE_IN_PICTURE);
final boolean supportsSplitScreenMultiWindow =
ActivityManager.supportsSplitScreenMultiWindow(mContext);
final boolean supportsMultiDisplay = mContext.getPackageManager()
.hasSystemFeature(FEATURE_ACTIVITIES_ON_SECONDARY_DISPLAYS);
final String debugApp = Settings.Global.getString(resolver, DEBUG_APP);
final boolean waitForDebugger = Settings.Global.getInt(resolver, WAIT_FOR_DEBUGGER, 0) != 0;
final boolean alwaysFinishActivities =
Settings.Global.getInt(resolver, ALWAYS_FINISH_ACTIVITIES, 0) != 0;
final boolean forceRtl = Settings.Global.getInt(resolver, DEVELOPMENT_FORCE_RTL, 0) != 0;
final boolean forceResizable = Settings.Global.getInt(
resolver, DEVELOPMENT_FORCE_RESIZABLE_ACTIVITIES, 0) != 0;
final long waitForNetworkTimeoutMs = Settings.Global.getLong(resolver,
NETWORK_ACCESS_TIMEOUT_MS, NETWORK_ACCESS_TIMEOUT_DEFAULT_MS);
final boolean supportsLeanbackOnly =
mContext.getPackageManager().hasSystemFeature(FEATURE_LEANBACK_ONLY);
// Transfer any global setting for forcing RTL layout, into a System Property
SystemProperties.set(DEVELOPMENT_FORCE_RTL, forceRtl ? "1":"0");
final Configuration configuration = new Configuration();
Settings.System.getConfiguration(resolver, configuration);
if (forceRtl) {
// This will take care of setting the correct layout direction flags
configuration.setLayoutDirection(configuration.locale);
}
synchronized (this) {
mDebugApp = mOrigDebugApp = debugApp;
mWaitForDebugger = mOrigWaitForDebugger = waitForDebugger;
mAlwaysFinishActivities = alwaysFinishActivities;
mSupportsLeanbackOnly = supportsLeanbackOnly;
mForceResizableActivities = forceResizable;
final boolean multiWindowFormEnabled = freeformWindowManagement
|| supportsSplitScreenMultiWindow
|| supportsPictureInPicture
|| supportsMultiDisplay;
if ((supportsMultiWindow || forceResizable) && multiWindowFormEnabled) {
mSupportsMultiWindow = true;
mSupportsFreeformWindowManagement = freeformWindowManagement;
mSupportsSplitScreenMultiWindow = supportsSplitScreenMultiWindow;
mSupportsPictureInPicture = supportsPictureInPicture;
mSupportsMultiDisplay = supportsMultiDisplay;
} else {
mSupportsMultiWindow = false;
mSupportsFreeformWindowManagement = false;
mSupportsSplitScreenMultiWindow = false;
mSupportsPictureInPicture = false;
mSupportsMultiDisplay = false;
}
mWindowManager.setForceResizableTasks(mForceResizableActivities);
mWindowManager.setSupportsPictureInPicture(mSupportsPictureInPicture);
// This happens before any activities are started, so we can change global configuration
// in-place.
updateConfigurationLocked(configuration, null, true);
final Configuration globalConfig = getGlobalConfiguration();
if (DEBUG_CONFIGURATION) Slog.v(TAG_CONFIGURATION, "Initial config: " + globalConfig);
// Load resources only after the current configuration has been set.
final Resources res = mContext.getResources();
mThumbnailWidth = res.getDimensionPixelSize(
com.android.internal.R.dimen.thumbnail_width);
mThumbnailHeight = res.getDimensionPixelSize(
com.android.internal.R.dimen.thumbnail_height);
mAppErrors.loadAppsNotReportingCrashesFromConfigLocked(res.getString(
com.android.internal.R.string.config_appsNotReportingCrashes));
mUserController.mUserSwitchUiEnabled = !res.getBoolean(
com.android.internal.R.bool.config_customUserSwitchUi);
mUserController.mMaxRunningUsers = res.getInteger(
com.android.internal.R.integer.config_multiuserMaxRunningUsers);
if ((globalConfig.uiMode & UI_MODE_TYPE_TELEVISION) == UI_MODE_TYPE_TELEVISION) {
mFullscreenThumbnailScale = (float) res
.getInteger(com.android.internal.R.integer.thumbnail_width_tv) /
(float) globalConfig.screenWidthDp;
} else {
mFullscreenThumbnailScale = res.getFraction(
com.android.internal.R.fraction.thumbnail_fullscreen_scale, 1, 1);
}
mWaitForNetworkTimeoutMs = waitForNetworkTimeoutMs;
}
}
public void systemReady(final Runnable goingCallback, TimingsTraceLog traceLog) {
traceLog.traceBegin("PhaseActivityManagerReady");
synchronized(this) {
if (mSystemReady) {
// If we're done calling all the receivers, run the next "boot phase" passed in
// by the SystemServer
if (goingCallback != null) {
goingCallback.run();
}
return;
}
mLocalDeviceIdleController
= LocalServices.getService(DeviceIdleController.LocalService.class);
mAssistUtils = new AssistUtils(mContext);
mVrController.onSystemReady();
// Make sure we have the current profile info, since it is needed for security checks.
mUserController.onSystemReady();
mRecentTasks.onSystemReadyLocked();
mAppOpsService.systemReady();
mSystemReady = true;
}
try {
sTheRealBuildSerial = IDeviceIdentifiersPolicyService.Stub.asInterface(
ServiceManager.getService(Context.DEVICE_IDENTIFIERS_SERVICE))
.getSerial();
} catch (RemoteException e) {}
ArrayList<ProcessRecord> procsToKill = null;
synchronized(mPidsSelfLocked) {
for (int i=mPidsSelfLocked.size()-1; i>=0; i--) {
ProcessRecord proc = mPidsSelfLocked.valueAt(i);
if (!isAllowedWhileBooting(proc.info)){
if (procsToKill == null) {
procsToKill = new ArrayList<ProcessRecord>();
}
procsToKill.add(proc);
}
}
}
synchronized(this) {
if (procsToKill != null) {
for (int i=procsToKill.size()-1; i>=0; i--) {
ProcessRecord proc = procsToKill.get(i);
Slog.i(TAG, "Removing system update proc: " + proc);
removeProcessLocked(proc, true, false, "system update done");
}
}
// Now that we have cleaned up any update processes, we
// are ready to start launching real processes and know that
// we won't trample on them any more.
mProcessesReady = true;
}
Slog.i(TAG, "System now ready");
EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_AMS_READY,
SystemClock.uptimeMillis());
synchronized(this) {
// Make sure we have no pre-ready processes sitting around.
if (mFactoryTest == FactoryTest.FACTORY_TEST_LOW_LEVEL) {
ResolveInfo ri = mContext.getPackageManager()
.resolveActivity(new Intent(Intent.ACTION_FACTORY_TEST),
STOCK_PM_FLAGS);
CharSequence errorMsg = null;
if (ri != null) {
ActivityInfo ai = ri.activityInfo;
ApplicationInfo app = ai.applicationInfo;
if ((app.flags&ApplicationInfo.FLAG_SYSTEM) != 0) {
mTopAction = Intent.ACTION_FACTORY_TEST;
mTopData = null;
mTopComponent = new ComponentName(app.packageName,
ai.name);
} else {
errorMsg = mContext.getResources().getText(
com.android.internal.R.string.factorytest_not_system);
}
} else {
errorMsg = mContext.getResources().getText(
com.android.internal.R.string.factorytest_no_action);
}
if (errorMsg != null) {
mTopAction = null;
mTopData = null;
mTopComponent = null;
Message msg = Message.obtain();
msg.what = SHOW_FACTORY_ERROR_UI_MSG;
msg.getData().putCharSequence("msg", errorMsg);
mUiHandler.sendMessage(msg);
}
}
}
retrieveSettings();
final int currentUserId = mUserController.getCurrentUserId();
synchronized (this) {
readGrantedUriPermissionsLocked();
}
if (goingCallback != null) goingCallback.run();
traceLog.traceBegin("ActivityManagerStartApps");
mBatteryStatsService.noteEvent(BatteryStats.HistoryItem.EVENT_USER_RUNNING_START,
Integer.toString(currentUserId), currentUserId);
mBatteryStatsService.noteEvent(BatteryStats.HistoryItem.EVENT_USER_FOREGROUND_START,
Integer.toString(currentUserId), currentUserId);
mSystemServiceManager.startUser(currentUserId);
synchronized (this) {
// Only start up encryption-aware persistent apps; once user is
// unlocked we'll come back around and start unaware apps
startPersistentApps(PackageManager.MATCH_DIRECT_BOOT_AWARE);
// Start up initial activity.
mBooting = true;
// Enable home activity for system user, so that the system can always boot. We don't
// do this when the system user is not setup since the setup wizard should be the one
// to handle home activity in this case.
if (UserManager.isSplitSystemUser() &&
Settings.Secure.getInt(mContext.getContentResolver(),
Settings.Secure.USER_SETUP_COMPLETE, 0) != 0) {
ComponentName cName = new ComponentName(mContext, SystemUserHomeActivity.class);
try {
AppGlobals.getPackageManager().setComponentEnabledSetting(cName,
PackageManager.COMPONENT_ENABLED_STATE_ENABLED, 0,
UserHandle.USER_SYSTEM);
} catch (RemoteException e) {
throw e.rethrowAsRuntimeException();
}
}
startHomeActivityLocked(currentUserId, "systemReady");
try {
if (AppGlobals.getPackageManager().hasSystemUidErrors()) {
Slog.e(TAG, "UIDs on the system are inconsistent, you need to wipe your"
+ " data partition or your device will be unstable.");
mUiHandler.obtainMessage(SHOW_UID_ERROR_UI_MSG).sendToTarget();
}
} catch (RemoteException e) {
}
if (!Build.isBuildConsistent()) {
Slog.e(TAG, "Build fingerprint is not consistent, warning user");
mUiHandler.obtainMessage(SHOW_FINGERPRINT_ERROR_UI_MSG).sendToTarget();
}
long ident = Binder.clearCallingIdentity();
try {
Intent intent = new Intent(Intent.ACTION_USER_STARTED);
intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY
| Intent.FLAG_RECEIVER_FOREGROUND);
intent.putExtra(Intent.EXTRA_USER_HANDLE, currentUserId);
broadcastIntentLocked(null, null, intent,
null, null, 0, null, null, null, AppOpsManager.OP_NONE,
null, false, false, MY_PID, SYSTEM_UID,
currentUserId);
intent = new Intent(Intent.ACTION_USER_STARTING);
intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY);
intent.putExtra(Intent.EXTRA_USER_HANDLE, currentUserId);
broadcastIntentLocked(null, null, intent,
null, new IIntentReceiver.Stub() {
@Override
public void performReceive(Intent intent, int resultCode, String data,
Bundle extras, boolean ordered, boolean sticky, int sendingUser)
throws RemoteException {
}
}, 0, null, null,
new String[] {INTERACT_ACROSS_USERS}, AppOpsManager.OP_NONE,
null, true, false, MY_PID, SYSTEM_UID, UserHandle.USER_ALL);
} catch (Throwable t) {
Slog.wtf(TAG, "Failed sending first user broadcasts", t);
} finally {
Binder.restoreCallingIdentity(ident);
}
mStackSupervisor.resumeFocusedStackTopActivityLocked();
mUserController.sendUserSwitchBroadcasts(-1, currentUserId);
BinderInternal.nSetBinderProxyCountEnabled(true);
BinderInternal.setBinderProxyCountCallback(
new BinderInternal.BinderProxyLimitListener() {
@Override
public void onLimitReached(int uid) {
Slog.wtf(TAG, "Uid " + uid + " sent too many Binders to uid "
+ Process.myUid());
if (uid == Process.SYSTEM_UID) {
Slog.i(TAG, "Skipping kill (uid is SYSTEM)");
} else {
killUid(UserHandle.getAppId(uid), UserHandle.getUserId(uid),
"Too many Binders sent to SYSTEM");
}
}
}, mHandler);
traceLog.traceEnd(); // ActivityManagerStartApps
traceLog.traceEnd(); // PhaseActivityManagerReady
}
}
void killAppAtUsersRequest(ProcessRecord app, Dialog fromDialog) {
synchronized (this) {
mAppErrors.killAppAtUserRequestLocked(app, fromDialog);
}
}
void skipCurrentReceiverLocked(ProcessRecord app) {
for (BroadcastQueue queue : mBroadcastQueues) {
queue.skipCurrentReceiverLocked(app);
}
}
/**
* Used by {@link com.android.internal.os.RuntimeInit} to report when an application crashes.
* The application process will exit immediately after this call returns.
* @param app object of the crashing app, null for the system server
* @param crashInfo describing the exception
*/
public void handleApplicationCrash(IBinder app,
ApplicationErrorReport.ParcelableCrashInfo crashInfo) {
ProcessRecord r = findAppProcess(app, "Crash");
final String processName = app == null ? "system_server"
: (r == null ? "unknown" : r.processName);
handleApplicationCrashInner("crash", r, processName, crashInfo);
}
/* Native crash reporting uses this inner version because it needs to be somewhat
* decoupled from the AM-managed cleanup lifecycle
*/
void handleApplicationCrashInner(String eventType, ProcessRecord r, String processName,
ApplicationErrorReport.CrashInfo crashInfo) {
EventLog.writeEvent(EventLogTags.AM_CRASH, Binder.getCallingPid(),
UserHandle.getUserId(Binder.getCallingUid()), processName,
r == null ? -1 : r.info.flags,
crashInfo.exceptionClassName,
crashInfo.exceptionMessage,
crashInfo.throwFileName,
crashInfo.throwLineNumber);
addErrorToDropBox(eventType, r, processName, null, null, null, null, null, crashInfo);
mAppErrors.crashApplication(r, crashInfo);
}
public void handleApplicationStrictModeViolation(
IBinder app,
int violationMask,
StrictMode.ViolationInfo info) {
ProcessRecord r = findAppProcess(app, "StrictMode");
if (r == null) {
return;
}
if ((violationMask & StrictMode.PENALTY_DROPBOX) != 0) {
Integer stackFingerprint = info.hashCode();
boolean logIt = true;
synchronized (mAlreadyLoggedViolatedStacks) {
if (mAlreadyLoggedViolatedStacks.contains(stackFingerprint)) {
logIt = false;
// TODO: sub-sample into EventLog for these, with
// the info.durationMillis? Then we'd get
// the relative pain numbers, without logging all
// the stack traces repeatedly. We'd want to do
// likewise in the client code, which also does
// dup suppression, before the Binder call.
} else {
if (mAlreadyLoggedViolatedStacks.size() >= MAX_DUP_SUPPRESSED_STACKS) {
mAlreadyLoggedViolatedStacks.clear();
}
mAlreadyLoggedViolatedStacks.add(stackFingerprint);
}
}
if (logIt) {
logStrictModeViolationToDropBox(r, info);
}
}
if ((violationMask & StrictMode.PENALTY_DIALOG) != 0) {
AppErrorResult result = new AppErrorResult();
synchronized (this) {
final long origId = Binder.clearCallingIdentity();
Message msg = Message.obtain();
msg.what = SHOW_STRICT_MODE_VIOLATION_UI_MSG;
HashMap<String, Object> data = new HashMap<String, Object>();
data.put("result", result);
data.put("app", r);
data.put("violationMask", violationMask);
data.put("info", info);
msg.obj = data;
mUiHandler.sendMessage(msg);
Binder.restoreCallingIdentity(origId);
}
int res = result.get();
Slog.w(TAG, "handleApplicationStrictModeViolation; res=" + res);
}
}
// Depending on the policy in effect, there could be a bunch of
// these in quick succession so we try to batch these together to
// minimize disk writes, number of dropbox entries, and maximize
// compression, by having more fewer, larger records.
private void logStrictModeViolationToDropBox(
ProcessRecord process,
StrictMode.ViolationInfo info) {
if (info == null) {
return;
}
final boolean isSystemApp = process == null ||
(process.info.flags & (ApplicationInfo.FLAG_SYSTEM |
ApplicationInfo.FLAG_UPDATED_SYSTEM_APP)) != 0;
final String processName = process == null ? "unknown" : process.processName;
final String dropboxTag = isSystemApp ? "system_app_strictmode" : "data_app_strictmode";
final DropBoxManager dbox = (DropBoxManager)
mContext.getSystemService(Context.DROPBOX_SERVICE);
// Exit early if the dropbox isn't configured to accept this report type.
if (dbox == null || !dbox.isTagEnabled(dropboxTag)) return;
boolean bufferWasEmpty;
boolean needsFlush;
final StringBuilder sb = isSystemApp ? mStrictModeBuffer : new StringBuilder(1024);
synchronized (sb) {
bufferWasEmpty = sb.length() == 0;
appendDropBoxProcessHeaders(process, processName, sb);
sb.append("Build: ").append(Build.FINGERPRINT).append("\n");
sb.append("System-App: ").append(isSystemApp).append("\n");
sb.append("Uptime-Millis: ").append(info.violationUptimeMillis).append("\n");
if (info.violationNumThisLoop != 0) {
sb.append("Loop-Violation-Number: ").append(info.violationNumThisLoop).append("\n");
}
if (info.numAnimationsRunning != 0) {
sb.append("Animations-Running: ").append(info.numAnimationsRunning).append("\n");
}
if (info.broadcastIntentAction != null) {
sb.append("Broadcast-Intent-Action: ").append(info.broadcastIntentAction).append("\n");
}
if (info.durationMillis != -1) {
sb.append("Duration-Millis: ").append(info.durationMillis).append("\n");
}
if (info.numInstances != -1) {
sb.append("Instance-Count: ").append(info.numInstances).append("\n");
}
if (info.tags != null) {
for (String tag : info.tags) {
sb.append("Span-Tag: ").append(tag).append("\n");
}
}
sb.append("\n");
if (info.hasStackTrace()) {
sb.append(info.getStackTrace());
sb.append("\n");
}
if (info.getViolationDetails() != null) {
sb.append(info.getViolationDetails());
sb.append("\n");
}
// Only buffer up to ~64k. Various logging bits truncate
// things at 128k.
needsFlush = (sb.length() > 64 * 1024);
}
// Flush immediately if the buffer's grown too large, or this
// is a non-system app. Non-system apps are isolated with a
// different tag & policy and not batched.
//
// Batching is useful during internal testing with
// StrictMode settings turned up high. Without batching,
// thousands of separate files could be created on boot.
if (!isSystemApp || needsFlush) {
new Thread("Error dump: " + dropboxTag) {
@Override
public void run() {
String report;
synchronized (sb) {
report = sb.toString();
sb.delete(0, sb.length());
sb.trimToSize();
}
if (report.length() != 0) {
dbox.addText(dropboxTag, report);
}
}
}.start();
return;
}
// System app batching:
if (!bufferWasEmpty) {
// An existing dropbox-writing thread is outstanding, so
// we don't need to start it up. The existing thread will
// catch the buffer appends we just did.
return;
}
// Worker thread to both batch writes and to avoid blocking the caller on I/O.
// (After this point, we shouldn't access AMS internal data structures.)
new Thread("Error dump: " + dropboxTag) {
@Override
public void run() {
// 5 second sleep to let stacks arrive and be batched together
try {
Thread.sleep(5000); // 5 seconds
} catch (InterruptedException e) {}
String errorReport;
synchronized (mStrictModeBuffer) {
errorReport = mStrictModeBuffer.toString();
if (errorReport.length() == 0) {
return;
}
mStrictModeBuffer.delete(0, mStrictModeBuffer.length());
mStrictModeBuffer.trimToSize();
}
dbox.addText(dropboxTag, errorReport);
}
}.start();
}
/**
* Used by {@link Log} via {@link com.android.internal.os.RuntimeInit} to report serious errors.
* @param app object of the crashing app, null for the system server
* @param tag reported by the caller
* @param system whether this wtf is coming from the system
* @param crashInfo describing the context of the error
* @return true if the process should exit immediately (WTF is fatal)
*/
public boolean handleApplicationWtf(final IBinder app, final String tag, boolean system,
final ApplicationErrorReport.ParcelableCrashInfo crashInfo) {
final int callingUid = Binder.getCallingUid();
final int callingPid = Binder.getCallingPid();
if (system) {
// If this is coming from the system, we could very well have low-level
// system locks held, so we want to do this all asynchronously. And we
// never want this to become fatal, so there is that too.
mHandler.post(new Runnable() {
@Override public void run() {
handleApplicationWtfInner(callingUid, callingPid, app, tag, crashInfo);
}
});
return false;
}
final ProcessRecord r = handleApplicationWtfInner(callingUid, callingPid, app, tag,
crashInfo);
final boolean isFatal = Build.IS_ENG || Settings.Global
.getInt(mContext.getContentResolver(), Settings.Global.WTF_IS_FATAL, 0) != 0;
final boolean isSystem = (r == null) || r.persistent;
if (isFatal && !isSystem) {
mAppErrors.crashApplication(r, crashInfo);
return true;
} else {
return false;
}
}
ProcessRecord handleApplicationWtfInner(int callingUid, int callingPid, IBinder app, String tag,
final ApplicationErrorReport.CrashInfo crashInfo) {
final ProcessRecord r = findAppProcess(app, "WTF");
final String processName = app == null ? "system_server"
: (r == null ? "unknown" : r.processName);
EventLog.writeEvent(EventLogTags.AM_WTF, UserHandle.getUserId(callingUid), callingPid,
processName, r == null ? -1 : r.info.flags, tag, crashInfo.exceptionMessage);
addErrorToDropBox("wtf", r, processName, null, null, tag, null, null, crashInfo);
return r;
}
/**
* @param app object of some object (as stored in {@link com.android.internal.os.RuntimeInit})
* @return the corresponding {@link ProcessRecord} object, or null if none could be found
*/
private ProcessRecord findAppProcess(IBinder app, String reason) {
if (app == null) {
return null;
}
synchronized (this) {
final int NP = mProcessNames.getMap().size();
for (int ip=0; ip<NP; ip++) {
SparseArray<ProcessRecord> apps = mProcessNames.getMap().valueAt(ip);
final int NA = apps.size();
for (int ia=0; ia<NA; ia++) {
ProcessRecord p = apps.valueAt(ia);
if (p.thread != null && p.thread.asBinder() == app) {
return p;
}
}
}
Slog.w(TAG, "Can't find mystery application for " + reason
+ " from pid=" + Binder.getCallingPid()
+ " uid=" + Binder.getCallingUid() + ": " + app);
return null;
}
}
/**
* Utility function for addErrorToDropBox and handleStrictModeViolation's logging
* to append various headers to the dropbox log text.
*/
private void appendDropBoxProcessHeaders(ProcessRecord process, String processName,
StringBuilder sb) {
// Watchdog thread ends up invoking this function (with
// a null ProcessRecord) to add the stack file to dropbox.
// Do not acquire a lock on this (am) in such cases, as it
// could cause a potential deadlock, if and when watchdog
// is invoked due to unavailability of lock on am and it
// would prevent watchdog from killing system_server.
if (process == null) {
sb.append("Process: ").append(processName).append("\n");
return;
}
// Note: ProcessRecord 'process' is guarded by the service
// instance. (notably process.pkgList, which could otherwise change
// concurrently during execution of this method)
synchronized (this) {
sb.append("Process: ").append(processName).append("\n");
sb.append("PID: ").append(process.pid).append("\n");
int flags = process.info.flags;
IPackageManager pm = AppGlobals.getPackageManager();
sb.append("Flags: 0x").append(Integer.toHexString(flags)).append("\n");
for (int ip=0; ip<process.pkgList.size(); ip++) {
String pkg = process.pkgList.keyAt(ip);
sb.append("Package: ").append(pkg);
try {
PackageInfo pi = pm.getPackageInfo(pkg, 0, UserHandle.getCallingUserId());
if (pi != null) {
sb.append(" v").append(pi.versionCode);
if (pi.versionName != null) {
sb.append(" (").append(pi.versionName).append(")");
}
}
} catch (RemoteException e) {
Slog.e(TAG, "Error getting package info: " + pkg, e);
}
sb.append("\n");
}
if (process.info.isInstantApp()) {
sb.append("Instant-App: true\n");
}
}
}
private static String processClass(ProcessRecord process) {
if (process == null || process.pid == MY_PID) {
return "system_server";
} else if ((process.info.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
return "system_app";
} else {
return "data_app";
}
}
private volatile long mWtfClusterStart;
private volatile int mWtfClusterCount;
/**
* Write a description of an error (crash, WTF, ANR) to the drop box.
* @param eventType to include in the drop box tag ("crash", "wtf", etc.)
* @param process which caused the error, null means the system server
* @param activity which triggered the error, null if unknown
* @param parent activity related to the error, null if unknown
* @param subject line related to the error, null if absent
* @param report in long form describing the error, null if absent
* @param dataFile text file to include in the report, null if none
* @param crashInfo giving an application stack trace, null if absent
*/
public void addErrorToDropBox(String eventType,
ProcessRecord process, String processName, ActivityRecord activity,
ActivityRecord parent, String subject,
final String report, final File dataFile,
final ApplicationErrorReport.CrashInfo crashInfo) {
// NOTE -- this must never acquire the ActivityManagerService lock,
// otherwise the watchdog may be prevented from resetting the system.
// Bail early if not published yet
if (ServiceManager.getService(Context.DROPBOX_SERVICE) == null) return;
final DropBoxManager dbox = mContext.getSystemService(DropBoxManager.class);
// Exit early if the dropbox isn't configured to accept this report type.
final String dropboxTag = processClass(process) + "_" + eventType;
if (dbox == null || !dbox.isTagEnabled(dropboxTag)) return;
// Rate-limit how often we're willing to do the heavy lifting below to
// collect and record logs; currently 5 logs per 10 second period.
final long now = SystemClock.elapsedRealtime();
if (now - mWtfClusterStart > 10 * DateUtils.SECOND_IN_MILLIS) {
mWtfClusterStart = now;
mWtfClusterCount = 1;
} else {
if (mWtfClusterCount++ >= 5) return;
}
final StringBuilder sb = new StringBuilder(1024);
appendDropBoxProcessHeaders(process, processName, sb);
if (process != null) {
sb.append("Foreground: ")
.append(process.isInterestingToUserLocked() ? "Yes" : "No")
.append("\n");
}
if (activity != null) {
sb.append("Activity: ").append(activity.shortComponentName).append("\n");
}
if (parent != null && parent.app != null && parent.app.pid != process.pid) {
sb.append("Parent-Process: ").append(parent.app.processName).append("\n");
}
if (parent != null && parent != activity) {
sb.append("Parent-Activity: ").append(parent.shortComponentName).append("\n");
}
if (subject != null) {
sb.append("Subject: ").append(subject).append("\n");
}
sb.append("Build: ").append(Build.FINGERPRINT).append("\n");
if (Debug.isDebuggerConnected()) {
sb.append("Debugger: Connected\n");
}
sb.append("\n");
// Do the rest in a worker thread to avoid blocking the caller on I/O
// (After this point, we shouldn't access AMS internal data structures.)
Thread worker = new Thread("Error dump: " + dropboxTag) {
@Override
public void run() {
if (report != null) {
sb.append(report);
}
String setting = Settings.Global.ERROR_LOGCAT_PREFIX + dropboxTag;
int lines = Settings.Global.getInt(mContext.getContentResolver(), setting, 0);
int maxDataFileSize = DROPBOX_MAX_SIZE - sb.length()
- lines * RESERVED_BYTES_PER_LOGCAT_LINE;
if (dataFile != null && maxDataFileSize > 0) {
try {
sb.append(FileUtils.readTextFile(dataFile, maxDataFileSize,
"\n\n[[TRUNCATED]]"));
} catch (IOException e) {
Slog.e(TAG, "Error reading " + dataFile, e);
}
}
if (crashInfo != null && crashInfo.stackTrace != null) {
sb.append(crashInfo.stackTrace);
}
if (lines > 0) {
sb.append("\n");
// Merge several logcat streams, and take the last N lines
InputStreamReader input = null;
try {
java.lang.Process logcat = new ProcessBuilder(
"/system/bin/timeout", "-k", "15s", "10s",
"/system/bin/logcat", "-v", "threadtime", "-b", "events", "-b", "system",
"-b", "main", "-b", "crash", "-t", String.valueOf(lines))
.redirectErrorStream(true).start();
try { logcat.getOutputStream().close(); } catch (IOException e) {}
try { logcat.getErrorStream().close(); } catch (IOException e) {}
input = new InputStreamReader(logcat.getInputStream());
int num;
char[] buf = new char[8192];
while ((num = input.read(buf)) > 0) sb.append(buf, 0, num);
} catch (IOException e) {
Slog.e(TAG, "Error running logcat", e);
} finally {
if (input != null) try { input.close(); } catch (IOException e) {}
}
}
dbox.addText(dropboxTag, sb.toString());
}
};
if (process == null) {
// If process is null, we are being called from some internal code
// and may be about to die -- run this synchronously.
worker.run();
} else {
worker.start();
}
}
@Override
public List<ActivityManager.ProcessErrorStateInfo> getProcessesInErrorState() {
enforceNotIsolatedCaller("getProcessesInErrorState");
// assume our apps are happy - lazy create the list
List<ActivityManager.ProcessErrorStateInfo> errList = null;
final boolean allUsers = ActivityManager.checkUidPermission(INTERACT_ACROSS_USERS_FULL,
Binder.getCallingUid()) == PackageManager.PERMISSION_GRANTED;
int userId = UserHandle.getUserId(Binder.getCallingUid());
synchronized (this) {
// iterate across all processes
for (int i=mLruProcesses.size()-1; i>=0; i--) {
ProcessRecord app = mLruProcesses.get(i);
if (!allUsers && app.userId != userId) {
continue;
}
if ((app.thread != null) && (app.crashing || app.notResponding)) {
// This one's in trouble, so we'll generate a report for it
// crashes are higher priority (in case there's a crash *and* an anr)
ActivityManager.ProcessErrorStateInfo report = null;
if (app.crashing) {
report = app.crashingReport;
} else if (app.notResponding) {
report = app.notRespondingReport;
}
if (report != null) {
if (errList == null) {
errList = new ArrayList<ActivityManager.ProcessErrorStateInfo>(1);
}
errList.add(report);
} else {
Slog.w(TAG, "Missing app error report, app = " + app.processName +
" crashing = " + app.crashing +
" notResponding = " + app.notResponding);
}
}
}
}
return errList;
}
static int procStateToImportance(int procState, int memAdj,
ActivityManager.RunningAppProcessInfo currApp,
int clientTargetSdk) {
int imp = ActivityManager.RunningAppProcessInfo.procStateToImportanceForTargetSdk(
procState, clientTargetSdk);
if (imp == ActivityManager.RunningAppProcessInfo.IMPORTANCE_BACKGROUND) {
currApp.lru = memAdj;
} else {
currApp.lru = 0;
}
return imp;
}
private void fillInProcMemInfo(ProcessRecord app,
ActivityManager.RunningAppProcessInfo outInfo,
int clientTargetSdk) {
outInfo.pid = app.pid;
outInfo.uid = app.info.uid;
if (mHeavyWeightProcess == app) {
outInfo.flags |= ActivityManager.RunningAppProcessInfo.FLAG_CANT_SAVE_STATE;
}
if (app.persistent) {
outInfo.flags |= ActivityManager.RunningAppProcessInfo.FLAG_PERSISTENT;
}
if (app.activities.size() > 0) {
outInfo.flags |= ActivityManager.RunningAppProcessInfo.FLAG_HAS_ACTIVITIES;
}
outInfo.lastTrimLevel = app.trimMemoryLevel;
int adj = app.curAdj;
int procState = app.curProcState;
outInfo.importance = procStateToImportance(procState, adj, outInfo, clientTargetSdk);
outInfo.importanceReasonCode = app.adjTypeCode;
outInfo.processState = app.curProcState;
}
@Override
public List<ActivityManager.RunningAppProcessInfo> getRunningAppProcesses() {
enforceNotIsolatedCaller("getRunningAppProcesses");
final int callingUid = Binder.getCallingUid();
final int clientTargetSdk = mPackageManagerInt.getUidTargetSdkVersion(callingUid);
// Lazy instantiation of list
List<ActivityManager.RunningAppProcessInfo> runList = null;
final boolean allUsers = ActivityManager.checkUidPermission(INTERACT_ACROSS_USERS_FULL,
callingUid) == PackageManager.PERMISSION_GRANTED;
final int userId = UserHandle.getUserId(callingUid);
final boolean allUids = isGetTasksAllowed(
"getRunningAppProcesses", Binder.getCallingPid(), callingUid);
synchronized (this) {
// Iterate across all processes
for (int i = mLruProcesses.size() - 1; i >= 0; i--) {
ProcessRecord app = mLruProcesses.get(i);
if ((!allUsers && app.userId != userId)
|| (!allUids && app.uid != callingUid)) {
continue;
}
if ((app.thread != null) && (!app.crashing && !app.notResponding)) {
// Generate process state info for running application
ActivityManager.RunningAppProcessInfo currApp =
new ActivityManager.RunningAppProcessInfo(app.processName,
app.pid, app.getPackageList());
fillInProcMemInfo(app, currApp, clientTargetSdk);
if (app.adjSource instanceof ProcessRecord) {
currApp.importanceReasonPid = ((ProcessRecord)app.adjSource).pid;
currApp.importanceReasonImportance =
ActivityManager.RunningAppProcessInfo.procStateToImportance(
app.adjSourceProcState);
} else if (app.adjSource instanceof ActivityRecord) {
ActivityRecord r = (ActivityRecord)app.adjSource;
if (r.app != null) currApp.importanceReasonPid = r.app.pid;
}
if (app.adjTarget instanceof ComponentName) {
currApp.importanceReasonComponent = (ComponentName)app.adjTarget;
}
//Slog.v(TAG, "Proc " + app.processName + ": imp=" + currApp.importance
// + " lru=" + currApp.lru);
if (runList == null) {
runList = new ArrayList<>();
}
runList.add(currApp);
}
}
}
return runList;
}
@Override
public List<ApplicationInfo> getRunningExternalApplications() {
enforceNotIsolatedCaller("getRunningExternalApplications");
List<ActivityManager.RunningAppProcessInfo> runningApps = getRunningAppProcesses();
List<ApplicationInfo> retList = new ArrayList<ApplicationInfo>();
if (runningApps != null && runningApps.size() > 0) {
Set<String> extList = new HashSet<String>();
for (ActivityManager.RunningAppProcessInfo app : runningApps) {
if (app.pkgList != null) {
for (String pkg : app.pkgList) {
extList.add(pkg);
}
}
}
IPackageManager pm = AppGlobals.getPackageManager();
for (String pkg : extList) {
try {
ApplicationInfo info = pm.getApplicationInfo(pkg, 0, UserHandle.getCallingUserId());
if ((info.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0) {
retList.add(info);
}
} catch (RemoteException e) {
}
}
}
return retList;
}
@Override
public void getMyMemoryState(ActivityManager.RunningAppProcessInfo outInfo) {
enforceNotIsolatedCaller("getMyMemoryState");
final int callingUid = Binder.getCallingUid();
final int clientTargetSdk = mPackageManagerInt.getUidTargetSdkVersion(callingUid);
synchronized (this) {
ProcessRecord proc;
synchronized (mPidsSelfLocked) {
proc = mPidsSelfLocked.get(Binder.getCallingPid());
}
fillInProcMemInfo(proc, outInfo, clientTargetSdk);
}
}
@Override
public int getMemoryTrimLevel() {
enforceNotIsolatedCaller("getMyMemoryState");
synchronized (this) {
return mLastMemoryLevel;
}
}
@Override
public void onShellCommand(FileDescriptor in, FileDescriptor out,
FileDescriptor err, String[] args, ShellCallback callback,
ResultReceiver resultReceiver) {
(new ActivityManagerShellCommand(this, false)).exec(
this, in, out, err, args, callback, resultReceiver);
}
SleepToken acquireSleepToken(String tag, int displayId) {
synchronized (this) {
final SleepToken token = mStackSupervisor.createSleepTokenLocked(tag, displayId);
updateSleepIfNeededLocked();
return token;
}
}
@Override
protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
PriorityDump.dump(mPriorityDumper, fd, pw, args);
}
/**
* Wrapper function to print out debug data filtered by specified arguments.
*/
private void doDump(FileDescriptor fd, PrintWriter pw, String[] args, boolean useProto) {
if (!DumpUtils.checkDumpAndUsageStatsPermission(mContext, TAG, pw)) return;
boolean dumpAll = false;
boolean dumpClient = false;
boolean dumpCheckin = false;
boolean dumpCheckinFormat = false;
boolean dumpVisibleStacksOnly = false;
boolean dumpFocusedStackOnly = false;
String dumpPackage = null;
int opti = 0;
while (opti < args.length) {
String opt = args[opti];
if (opt == null || opt.length() <= 0 || opt.charAt(0) != '-') {
break;
}
opti++;
if ("-a".equals(opt)) {
dumpAll = true;
} else if ("-c".equals(opt)) {
dumpClient = true;
} else if ("-v".equals(opt)) {
dumpVisibleStacksOnly = true;
} else if ("-f".equals(opt)) {
dumpFocusedStackOnly = true;
} else if ("-p".equals(opt)) {
if (opti < args.length) {
dumpPackage = args[opti];
opti++;
} else {
pw.println("Error: -p option requires package argument");
return;
}
dumpClient = true;
} else if ("--checkin".equals(opt)) {
dumpCheckin = dumpCheckinFormat = true;
} else if ("-C".equals(opt)) {
dumpCheckinFormat = true;
} else if ("-h".equals(opt)) {
ActivityManagerShellCommand.dumpHelp(pw, true);
return;
} else {
pw.println("Unknown argument: " + opt + "; use -h for help");
}
}
long origId = Binder.clearCallingIdentity();
if (useProto) {
final ProtoOutputStream proto = new ProtoOutputStream(fd);
String cmd = opti < args.length ? args[opti] : "";
opti++;
if ("activities".equals(cmd) || "a".equals(cmd)) {
// output proto is ActivityStackSupervisorProto
synchronized (this) {
writeActivitiesToProtoLocked(proto);
}
} else if ("broadcasts".equals(cmd) || "b".equals(cmd)) {
// output proto is BroadcastProto
synchronized (this) {
writeBroadcastsToProtoLocked(proto);
}
} else {
// default option, dump everything, output is ActivityManagerServiceProto
synchronized (this) {
long activityToken = proto.start(ActivityManagerServiceProto.ACTIVITIES);
writeActivitiesToProtoLocked(proto);
proto.end(activityToken);
long broadcastToken = proto.start(ActivityManagerServiceProto.BROADCASTS);
writeBroadcastsToProtoLocked(proto);
proto.end(broadcastToken);
}
}
proto.flush();
Binder.restoreCallingIdentity(origId);
return;
}
boolean more = false;
// Is the caller requesting to dump a particular piece of data?
if (opti < args.length) {
String cmd = args[opti];
opti++;
if ("activities".equals(cmd) || "a".equals(cmd)) {
synchronized (this) {
dumpActivitiesLocked(fd, pw, args, opti, true, dumpClient, dumpPackage);
}
} else if ("lastanr".equals(cmd)) {
synchronized (this) {
dumpLastANRLocked(pw);
}
} else if ("starter".equals(cmd)) {
synchronized (this) {
dumpActivityStarterLocked(pw, dumpPackage);
}
} else if ("containers".equals(cmd)) {
synchronized (this) {
dumpActivityContainersLocked(pw);
}
} else if ("recents".equals(cmd) || "r".equals(cmd)) {
synchronized (this) {
if (mRecentTasks != null) {
mRecentTasks.dump(pw, true /* dumpAll */, dumpPackage);
}
}
} else if ("binder-proxies".equals(cmd)) {
if (opti >= args.length) {
dumpBinderProxiesCounts(pw, BinderInternal.nGetBinderProxyPerUidCounts(),
"Counts of Binder Proxies held by SYSTEM");
} else {
String uid = args[opti];
opti++;
// Ensure Binder Proxy Count is as up to date as possible
System.gc();
System.runFinalization();
System.gc();
pw.println(BinderInternal.nGetBinderProxyCount(Integer.parseInt(uid)));
}
} else if ("broadcasts".equals(cmd) || "b".equals(cmd)) {
String[] newArgs;
String name;
if (opti >= args.length) {
name = null;
newArgs = EMPTY_STRING_ARRAY;
} else {
dumpPackage = args[opti];
opti++;
newArgs = new String[args.length - opti];
if (args.length > 2) System.arraycopy(args, opti, newArgs, 0,
args.length - opti);
}
synchronized (this) {
dumpBroadcastsLocked(fd, pw, args, opti, true, dumpPackage);
}
} else if ("broadcast-stats".equals(cmd)) {
String[] newArgs;
String name;
if (opti >= args.length) {
name = null;
newArgs = EMPTY_STRING_ARRAY;
} else {
dumpPackage = args[opti];
opti++;
newArgs = new String[args.length - opti];
if (args.length > 2) System.arraycopy(args, opti, newArgs, 0,
args.length - opti);
}
synchronized (this) {
if (dumpCheckinFormat) {
dumpBroadcastStatsCheckinLocked(fd, pw, args, opti, dumpCheckin,
dumpPackage);
} else {
dumpBroadcastStatsLocked(fd, pw, args, opti, true, dumpPackage);
}
}
} else if ("intents".equals(cmd) || "i".equals(cmd)) {
String[] newArgs;
String name;
if (opti >= args.length) {
name = null;
newArgs = EMPTY_STRING_ARRAY;
} else {
dumpPackage = args[opti];
opti++;
newArgs = new String[args.length - opti];
if (args.length > 2) System.arraycopy(args, opti, newArgs, 0,
args.length - opti);
}
synchronized (this) {
dumpPendingIntentsLocked(fd, pw, args, opti, true, dumpPackage);
}
} else if ("processes".equals(cmd) || "p".equals(cmd)) {
String[] newArgs;
String name;
if (opti >= args.length) {
name = null;
newArgs = EMPTY_STRING_ARRAY;
} else {
dumpPackage = args[opti];
opti++;
newArgs = new String[args.length - opti];
if (args.length > 2) System.arraycopy(args, opti, newArgs, 0,
args.length - opti);
}
synchronized (this) {
dumpProcessesLocked(fd, pw, args, opti, true, dumpPackage);
}
} else if ("oom".equals(cmd) || "o".equals(cmd)) {
synchronized (this) {
dumpOomLocked(fd, pw, args, opti, true);
}
} else if ("permissions".equals(cmd) || "perm".equals(cmd)) {
synchronized (this) {
dumpPermissionsLocked(fd, pw, args, opti, true, null);
}
} else if ("provider".equals(cmd)) {
String[] newArgs;
String name;
if (opti >= args.length) {
name = null;
newArgs = EMPTY_STRING_ARRAY;
} else {
name = args[opti];
opti++;
newArgs = new String[args.length - opti];
if (args.length > 2) System.arraycopy(args, opti, newArgs, 0, args.length - opti);
}
if (!dumpProvider(fd, pw, name, newArgs, 0, dumpAll)) {
pw.println("No providers match: " + name);
pw.println("Use -h for help.");
}
} else if ("providers".equals(cmd) || "prov".equals(cmd)) {
synchronized (this) {
dumpProvidersLocked(fd, pw, args, opti, true, null);
}
} else if ("service".equals(cmd)) {
String[] newArgs;
String name;
if (opti >= args.length) {
name = null;
newArgs = EMPTY_STRING_ARRAY;
} else {
name = args[opti];
opti++;
newArgs = new String[args.length - opti];
if (args.length > 2) System.arraycopy(args, opti, newArgs, 0,
args.length - opti);
}
if (!mServices.dumpService(fd, pw, name, newArgs, 0, dumpAll)) {
pw.println("No services match: " + name);
pw.println("Use -h for help.");
}
} else if ("package".equals(cmd)) {
String[] newArgs;
if (opti >= args.length) {
pw.println("package: no package name specified");
pw.println("Use -h for help.");
} else {
dumpPackage = args[opti];
opti++;
newArgs = new String[args.length - opti];
if (args.length > 2) System.arraycopy(args, opti, newArgs, 0,
args.length - opti);
args = newArgs;
opti = 0;
more = true;
}
} else if ("associations".equals(cmd) || "as".equals(cmd)) {
synchronized (this) {
dumpAssociationsLocked(fd, pw, args, opti, true, dumpClient, dumpPackage);
}
} else if ("settings".equals(cmd)) {
synchronized (this) {
mConstants.dump(pw);
}
} else if ("services".equals(cmd) || "s".equals(cmd)) {
if (dumpClient) {
ActiveServices.ServiceDumper dumper;
synchronized (this) {
dumper = mServices.newServiceDumperLocked(fd, pw, args, opti, true,
dumpPackage);
}
dumper.dumpWithClient();
} else {
synchronized (this) {
mServices.newServiceDumperLocked(fd, pw, args, opti, true,
dumpPackage).dumpLocked();
}
}
} else if ("locks".equals(cmd)) {
LockGuard.dump(fd, pw, args);
} else {
// Dumping a single activity?
if (!dumpActivity(fd, pw, cmd, args, opti, dumpAll, dumpVisibleStacksOnly,
dumpFocusedStackOnly)) {
ActivityManagerShellCommand shell = new ActivityManagerShellCommand(this, true);
int res = shell.exec(this, null, fd, null, args, null,
new ResultReceiver(null));
if (res < 0) {
pw.println("Bad activity command, or no activities match: " + cmd);
pw.println("Use -h for help.");
}
}
}
if (!more) {
Binder.restoreCallingIdentity(origId);
return;
}
}
// No piece of data specified, dump everything.
if (dumpCheckinFormat) {
dumpBroadcastStatsCheckinLocked(fd, pw, args, opti, dumpCheckin, dumpPackage);
} else if (dumpClient) {
ActiveServices.ServiceDumper sdumper;
synchronized (this) {
mConstants.dump(pw);
pw.println();
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
dumpPendingIntentsLocked(fd, pw, args, opti, dumpAll, dumpPackage);
pw.println();
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
dumpBroadcastsLocked(fd, pw, args, opti, dumpAll, dumpPackage);
pw.println();
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
if (dumpAll || dumpPackage != null) {
dumpBroadcastStatsLocked(fd, pw, args, opti, dumpAll, dumpPackage);
pw.println();
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
}
dumpProvidersLocked(fd, pw, args, opti, dumpAll, dumpPackage);
pw.println();
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
dumpPermissionsLocked(fd, pw, args, opti, dumpAll, dumpPackage);
pw.println();
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
sdumper = mServices.newServiceDumperLocked(fd, pw, args, opti, dumpAll,
dumpPackage);
}
sdumper.dumpWithClient();
pw.println();
synchronized (this) {
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
if (mRecentTasks != null) {
mRecentTasks.dump(pw, dumpAll, dumpPackage);
}
pw.println();
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
dumpLastANRLocked(pw);
pw.println();
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
dumpActivityStarterLocked(pw, dumpPackage);
pw.println();
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
dumpActivityContainersLocked(pw);
pw.println();
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
dumpActivitiesLocked(fd, pw, args, opti, dumpAll, dumpClient, dumpPackage);
if (mAssociations.size() > 0) {
pw.println();
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
dumpAssociationsLocked(fd, pw, args, opti, dumpAll, dumpClient, dumpPackage);
}
pw.println();
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
dumpProcessesLocked(fd, pw, args, opti, dumpAll, dumpPackage);
}
} else {
synchronized (this) {
mConstants.dump(pw);
pw.println();
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
dumpPendingIntentsLocked(fd, pw, args, opti, dumpAll, dumpPackage);
pw.println();
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
dumpBroadcastsLocked(fd, pw, args, opti, dumpAll, dumpPackage);
pw.println();
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
if (dumpAll || dumpPackage != null) {
dumpBroadcastStatsLocked(fd, pw, args, opti, dumpAll, dumpPackage);
pw.println();
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
}
dumpProvidersLocked(fd, pw, args, opti, dumpAll, dumpPackage);
pw.println();
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
dumpPermissionsLocked(fd, pw, args, opti, dumpAll, dumpPackage);
pw.println();
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
mServices.newServiceDumperLocked(fd, pw, args, opti, dumpAll, dumpPackage)
.dumpLocked();
pw.println();
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
if (mRecentTasks != null) {
mRecentTasks.dump(pw, dumpAll, dumpPackage);
}
pw.println();
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
dumpLastANRLocked(pw);
pw.println();
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
dumpActivityStarterLocked(pw, dumpPackage);
pw.println();
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
dumpActivityContainersLocked(pw);
pw.println();
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
dumpActivitiesLocked(fd, pw, args, opti, dumpAll, dumpClient, dumpPackage);
if (mAssociations.size() > 0) {
pw.println();
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
dumpAssociationsLocked(fd, pw, args, opti, dumpAll, dumpClient, dumpPackage);
}
pw.println();
if (dumpAll) {
pw.println("-------------------------------------------------------------------------------");
}
dumpProcessesLocked(fd, pw, args, opti, dumpAll, dumpPackage);
}
}
Binder.restoreCallingIdentity(origId);
}
private void writeActivitiesToProtoLocked(ProtoOutputStream proto) {
// The output proto of "activity --proto activities" is ActivityStackSupervisorProto
mStackSupervisor.writeToProto(proto);
}
private void dumpLastANRLocked(PrintWriter pw) {
pw.println("ACTIVITY MANAGER LAST ANR (dumpsys activity lastanr)");
if (mLastANRState == null) {
pw.println(" <no ANR has occurred since boot>");
} else {
pw.println(mLastANRState);
}
}
private void dumpActivityContainersLocked(PrintWriter pw) {
pw.println("ACTIVITY MANAGER STARTER (dumpsys activity containers)");
mStackSupervisor.dumpChildrenNames(pw, " ");
pw.println(" ");
}
private void dumpActivityStarterLocked(PrintWriter pw, String dumpPackage) {
pw.println("ACTIVITY MANAGER STARTER (dumpsys activity starter)");
mActivityStarter.dump(pw, "", dumpPackage);
}
void dumpActivitiesLocked(FileDescriptor fd, PrintWriter pw, String[] args,
int opti, boolean dumpAll, boolean dumpClient, String dumpPackage) {
dumpActivitiesLocked(fd, pw, args, opti, dumpAll, dumpClient, dumpPackage,
"ACTIVITY MANAGER ACTIVITIES (dumpsys activity activities)");
}
void dumpActivitiesLocked(FileDescriptor fd, PrintWriter pw, String[] args,
int opti, boolean dumpAll, boolean dumpClient, String dumpPackage, String header) {
pw.println(header);
boolean printedAnything = mStackSupervisor.dumpActivitiesLocked(fd, pw, dumpAll, dumpClient,
dumpPackage);
boolean needSep = printedAnything;
boolean printed = ActivityStackSupervisor.printThisActivity(pw,
mStackSupervisor.getResumedActivityLocked(),
dumpPackage, needSep, " ResumedActivity: ");
if (printed) {
printedAnything = true;
needSep = false;
}
if (dumpPackage == null) {
if (needSep) {
pw.println();
}
printedAnything = true;
mStackSupervisor.dump(pw, " ");
}
if (!printedAnything) {
pw.println(" (nothing)");
}
}
void dumpAssociationsLocked(FileDescriptor fd, PrintWriter pw, String[] args,
int opti, boolean dumpAll, boolean dumpClient, String dumpPackage) {
pw.println("ACTIVITY MANAGER ASSOCIATIONS (dumpsys activity associations)");
int dumpUid = 0;
if (dumpPackage != null) {
IPackageManager pm = AppGlobals.getPackageManager();
try {
dumpUid = pm.getPackageUid(dumpPackage, MATCH_ANY_USER, 0);
} catch (RemoteException e) {
}
}
boolean printedAnything = false;
final long now = SystemClock.uptimeMillis();
for (int i1=0, N1=mAssociations.size(); i1<N1; i1++) {
ArrayMap<ComponentName, SparseArray<ArrayMap<String, Association>>> targetComponents
= mAssociations.valueAt(i1);
for (int i2=0, N2=targetComponents.size(); i2<N2; i2++) {
SparseArray<ArrayMap<String, Association>> sourceUids
= targetComponents.valueAt(i2);
for (int i3=0, N3=sourceUids.size(); i3<N3; i3++) {
ArrayMap<String, Association> sourceProcesses = sourceUids.valueAt(i3);
for (int i4=0, N4=sourceProcesses.size(); i4<N4; i4++) {
Association ass = sourceProcesses.valueAt(i4);
if (dumpPackage != null) {
if (!ass.mTargetComponent.getPackageName().equals(dumpPackage)
&& UserHandle.getAppId(ass.mSourceUid) != dumpUid) {
continue;
}
}
printedAnything = true;
pw.print(" ");
pw.print(ass.mTargetProcess);
pw.print("/");
UserHandle.formatUid(pw, ass.mTargetUid);
pw.print(" <- ");
pw.print(ass.mSourceProcess);
pw.print("/");
UserHandle.formatUid(pw, ass.mSourceUid);
pw.println();
pw.print(" via ");
pw.print(ass.mTargetComponent.flattenToShortString());
pw.println();
pw.print(" ");
long dur = ass.mTime;
if (ass.mNesting > 0) {
dur += now - ass.mStartTime;
}
TimeUtils.formatDuration(dur, pw);
pw.print(" (");
pw.print(ass.mCount);
pw.print(" times)");
pw.print(" ");
for (int i=0; i<ass.mStateTimes.length; i++) {
long amt = ass.mStateTimes[i];
if ((ass.mLastState-ActivityManager.MIN_PROCESS_STATE) == i) {
amt += now - ass.mLastStateUptime;
}
if (amt != 0) {
pw.print(" ");
pw.print(ProcessList.makeProcStateString(
i + ActivityManager.MIN_PROCESS_STATE));
pw.print("=");
TimeUtils.formatDuration(amt, pw);
if ((ass.mLastState-ActivityManager.MIN_PROCESS_STATE) == i) {
pw.print("*");
}
}
}
pw.println();
if (ass.mNesting > 0) {
pw.print(" Currently active: ");
TimeUtils.formatDuration(now - ass.mStartTime, pw);
pw.println();
}
}
}
}
}
if (!printedAnything) {
pw.println(" (nothing)");
}
}
boolean dumpUids(PrintWriter pw, String dumpPackage, SparseArray<UidRecord> uids,
String header, boolean needSep) {
boolean printed = false;
int whichAppId = -1;
if (dumpPackage != null) {
try {
ApplicationInfo info = mContext.getPackageManager().getApplicationInfo(
dumpPackage, 0);
whichAppId = UserHandle.getAppId(info.uid);
} catch (NameNotFoundException e) {
e.printStackTrace();
}
}
for (int i=0; i<uids.size(); i++) {
UidRecord uidRec = uids.valueAt(i);
if (dumpPackage != null && UserHandle.getAppId(uidRec.uid) != whichAppId) {
continue;
}
if (!printed) {
printed = true;
if (needSep) {
pw.println();
}
pw.print(" ");
pw.println(header);
needSep = true;
}
pw.print(" UID "); UserHandle.formatUid(pw, uidRec.uid);
pw.print(": "); pw.println(uidRec);
}
return printed;
}
boolean dumpBinderProxiesCounts(PrintWriter pw, SparseIntArray counts, String header) {
if(counts != null) {
pw.println(header);
for (int i = 0; i < counts.size(); i++) {
final int uid = counts.keyAt(i);
final int binderCount = counts.valueAt(i);
pw.print(" UID ");
pw.print(uid);
pw.print(", binder count = ");
pw.print(binderCount);
pw.print(", package(s)= ");
final String[] pkgNames = mContext.getPackageManager().getPackagesForUid(uid);
if (pkgNames != null) {
for (int j = 0; j < pkgNames.length; j++) {
pw.print(pkgNames[j]);
pw.print("; ");
}
} else {
pw.print("NO PACKAGE NAME FOUND");
}
pw.println();
}
pw.println();
return true;
}
return false;
}
void dumpProcessesLocked(FileDescriptor fd, PrintWriter pw, String[] args,
int opti, boolean dumpAll, String dumpPackage) {
boolean needSep = false;
boolean printedAnything = false;
int numPers = 0;
pw.println("ACTIVITY MANAGER RUNNING PROCESSES (dumpsys activity processes)");
if (dumpAll) {
final int NP = mProcessNames.getMap().size();
for (int ip=0; ip<NP; ip++) {
SparseArray<ProcessRecord> procs = mProcessNames.getMap().valueAt(ip);
final int NA = procs.size();
for (int ia=0; ia<NA; ia++) {
ProcessRecord r = procs.valueAt(ia);
if (dumpPackage != null && !r.pkgList.containsKey(dumpPackage)) {
continue;
}
if (!needSep) {
pw.println(" All known processes:");
needSep = true;
printedAnything = true;
}
pw.print(r.persistent ? " *PERS*" : " *APP*");
pw.print(" UID "); pw.print(procs.keyAt(ia));
pw.print(" "); pw.println(r);
r.dump(pw, " ");
if (r.persistent) {
numPers++;
}
}
}
}
if (mIsolatedProcesses.size() > 0) {
boolean printed = false;
for (int i=0; i<mIsolatedProcesses.size(); i++) {
ProcessRecord r = mIsolatedProcesses.valueAt(i);
if (dumpPackage != null && !r.pkgList.containsKey(dumpPackage)) {
continue;
}
if (!printed) {
if (needSep) {
pw.println();
}
pw.println(" Isolated process list (sorted by uid):");
printedAnything = true;
printed = true;
needSep = true;
}
pw.print(" Isolated #"); pw.print(i); pw.print(": ");
pw.println(r);
}
}
if (mActiveInstrumentation.size() > 0) {
boolean printed = false;
for (int i=0; i<mActiveInstrumentation.size(); i++) {
ActiveInstrumentation ai = mActiveInstrumentation.get(i);
if (dumpPackage != null && !ai.mClass.getPackageName().equals(dumpPackage)
&& !ai.mTargetInfo.packageName.equals(dumpPackage)) {
continue;
}
if (!printed) {
if (needSep) {
pw.println();
}
pw.println(" Active instrumentation:");
printedAnything = true;
printed = true;
needSep = true;
}
pw.print(" Instrumentation #"); pw.print(i); pw.print(": ");
pw.println(ai);
ai.dump(pw, " ");
}
}
if (mActiveUids.size() > 0) {
if (dumpUids(pw, dumpPackage, mActiveUids, "UID states:", needSep)) {
printedAnything = needSep = true;
}
}
if (dumpAll) {
if (mValidateUids.size() > 0) {
if (dumpUids(pw, dumpPackage, mValidateUids, "UID validation:", needSep)) {
printedAnything = needSep = true;
}
}
}
if (mLruProcesses.size() > 0) {
if (needSep) {
pw.println();
}
pw.print(" Process LRU list (sorted by oom_adj, "); pw.print(mLruProcesses.size());
pw.print(" total, non-act at ");
pw.print(mLruProcesses.size()-mLruProcessActivityStart);
pw.print(", non-svc at ");
pw.print(mLruProcesses.size()-mLruProcessServiceStart);
pw.println("):");
dumpProcessOomList(pw, this, mLruProcesses, " ", "Proc", "PERS", false, dumpPackage);
needSep = true;
printedAnything = true;
}
if (dumpAll || dumpPackage != null) {
synchronized (mPidsSelfLocked) {
boolean printed = false;
for (int i=0; i<mPidsSelfLocked.size(); i++) {
ProcessRecord r = mPidsSelfLocked.valueAt(i);
if (dumpPackage != null && !r.pkgList.containsKey(dumpPackage)) {
continue;
}
if (!printed) {
if (needSep) pw.println();
needSep = true;
pw.println(" PID mappings:");
printed = true;
printedAnything = true;
}
pw.print(" PID #"); pw.print(mPidsSelfLocked.keyAt(i));
pw.print(": "); pw.println(mPidsSelfLocked.valueAt(i));
}
}
}
if (mImportantProcesses.size() > 0) {
synchronized (mPidsSelfLocked) {
boolean printed = false;
for (int i = 0; i< mImportantProcesses.size(); i++) {
ProcessRecord r = mPidsSelfLocked.get(
mImportantProcesses.valueAt(i).pid);
if (dumpPackage != null && (r == null
|| !r.pkgList.containsKey(dumpPackage))) {
continue;
}
if (!printed) {
if (needSep) pw.println();
needSep = true;
pw.println(" Foreground Processes:");
printed = true;
printedAnything = true;
}
pw.print(" PID #"); pw.print(mImportantProcesses.keyAt(i));
pw.print(": "); pw.println(mImportantProcesses.valueAt(i));
}
}
}
if (mPersistentStartingProcesses.size() > 0) {
if (needSep) pw.println();
needSep = true;
printedAnything = true;
pw.println(" Persisent processes that are starting:");
dumpProcessList(pw, this, mPersistentStartingProcesses, " ",
"Starting Norm", "Restarting PERS", dumpPackage);
}
if (mRemovedProcesses.size() > 0) {
if (needSep) pw.println();
needSep = true;
printedAnything = true;
pw.println(" Processes that are being removed:");
dumpProcessList(pw, this, mRemovedProcesses, " ",
"Removed Norm", "Removed PERS", dumpPackage);
}
if (mProcessesOnHold.size() > 0) {
if (needSep) pw.println();
needSep = true;
printedAnything = true;
pw.println(" Processes that are on old until the system is ready:");
dumpProcessList(pw, this, mProcessesOnHold, " ",
"OnHold Norm", "OnHold PERS", dumpPackage);
}
needSep = dumpProcessesToGc(fd, pw, args, opti, needSep, dumpAll, dumpPackage);
needSep = mAppErrors.dumpLocked(fd, pw, needSep, dumpPackage);
if (needSep) {
printedAnything = true;
}
if (dumpPackage == null) {
pw.println();
needSep = false;
mUserController.dump(pw, dumpAll);
}
if (mHomeProcess != null && (dumpPackage == null
|| mHomeProcess.pkgList.containsKey(dumpPackage))) {
if (needSep) {
pw.println();
needSep = false;
}
pw.println(" mHomeProcess: " + mHomeProcess);
}
if (mPreviousProcess != null && (dumpPackage == null
|| mPreviousProcess.pkgList.containsKey(dumpPackage))) {
if (needSep) {
pw.println();
needSep = false;
}
pw.println(" mPreviousProcess: " + mPreviousProcess);
}
if (dumpAll && (mPreviousProcess == null || dumpPackage == null
|| mPreviousProcess.pkgList.containsKey(dumpPackage))) {
StringBuilder sb = new StringBuilder(128);
sb.append(" mPreviousProcessVisibleTime: ");
TimeUtils.formatDuration(mPreviousProcessVisibleTime, sb);
pw.println(sb);
}
if (mHeavyWeightProcess != null && (dumpPackage == null
|| mHeavyWeightProcess.pkgList.containsKey(dumpPackage))) {
if (needSep) {
pw.println();
needSep = false;
}
pw.println(" mHeavyWeightProcess: " + mHeavyWeightProcess);
}
if (dumpPackage == null) {
pw.println(" mGlobalConfiguration: " + getGlobalConfiguration());
mStackSupervisor.dumpDisplayConfigs(pw, " ");
}
if (dumpAll) {
if (dumpPackage == null) {
pw.println(" mConfigWillChange: " + getFocusedStack().mConfigWillChange);
}
if (mCompatModePackages.getPackages().size() > 0) {
boolean printed = false;
for (Map.Entry<String, Integer> entry
: mCompatModePackages.getPackages().entrySet()) {
String pkg = entry.getKey();
int mode = entry.getValue();
if (dumpPackage != null && !dumpPackage.equals(pkg)) {
continue;
}
if (!printed) {
pw.println(" mScreenCompatPackages:");
printed = true;
}
pw.print(" "); pw.print(pkg); pw.print(": ");
pw.print(mode); pw.println();
}
}
final int NI = mUidObservers.getRegisteredCallbackCount();
boolean printed = false;
for (int i=0; i<NI; i++) {
final UidObserverRegistration reg = (UidObserverRegistration)
mUidObservers.getRegisteredCallbackCookie(i);
if (dumpPackage == null || dumpPackage.equals(reg.pkg)) {
if (!printed) {
pw.println(" mUidObservers:");
printed = true;
}
pw.print(" "); UserHandle.formatUid(pw, reg.uid);
pw.print(" "); pw.print(reg.pkg); pw.print(":");
if ((reg.which&ActivityManager.UID_OBSERVER_IDLE) != 0) {
pw.print(" IDLE");
}
if ((reg.which&ActivityManager.UID_OBSERVER_ACTIVE) != 0) {
pw.print(" ACT" );
}
if ((reg.which&ActivityManager.UID_OBSERVER_GONE) != 0) {
pw.print(" GONE");
}
if ((reg.which&ActivityManager.UID_OBSERVER_PROCSTATE) != 0) {
pw.print(" STATE");
pw.print(" (cut="); pw.print(reg.cutpoint);
pw.print(")");
}
pw.println();
if (reg.lastProcStates != null) {
final int NJ = reg.lastProcStates.size();
for (int j=0; j<NJ; j++) {
pw.print(" Last ");
UserHandle.formatUid(pw, reg.lastProcStates.keyAt(j));
pw.print(": "); pw.println(reg.lastProcStates.valueAt(j));
}
}
}
}
pw.println(" mDeviceIdleWhitelist=" + Arrays.toString(mDeviceIdleWhitelist));
pw.println(" mDeviceIdleTempWhitelist=" + Arrays.toString(mDeviceIdleTempWhitelist));
if (mPendingTempWhitelist.size() > 0) {
pw.println(" mPendingTempWhitelist:");
for (int i = 0; i < mPendingTempWhitelist.size(); i++) {
PendingTempWhitelist ptw = mPendingTempWhitelist.valueAt(i);
pw.print(" ");
UserHandle.formatUid(pw, ptw.targetUid);
pw.print(": ");
TimeUtils.formatDuration(ptw.duration, pw);
pw.print(" ");
pw.println(ptw.tag);
}
}
}
if (dumpPackage == null) {
pw.println(" mWakefulness="
+ PowerManagerInternal.wakefulnessToString(mWakefulness));
pw.println(" mSleepTokens=" + mStackSupervisor.mSleepTokens);
pw.println(" mSleeping=" + mSleeping);
pw.println(" mShuttingDown=" + mShuttingDown + " mTestPssMode=" + mTestPssMode);
if (mRunningVoice != null) {
pw.println(" mRunningVoice=" + mRunningVoice);
pw.println(" mVoiceWakeLock" + mVoiceWakeLock);
}
pw.println(" mVrController=" + mVrController);
}
if (mDebugApp != null || mOrigDebugApp != null || mDebugTransient
|| mOrigWaitForDebugger) {
if (dumpPackage == null || dumpPackage.equals(mDebugApp)
|| dumpPackage.equals(mOrigDebugApp)) {
if (needSep) {
pw.println();
needSep = false;
}
pw.println(" mDebugApp=" + mDebugApp + "/orig=" + mOrigDebugApp
+ " mDebugTransient=" + mDebugTransient
+ " mOrigWaitForDebugger=" + mOrigWaitForDebugger);
}
}
if (mCurAppTimeTracker != null) {
mCurAppTimeTracker.dumpWithHeader(pw, " ", true);
}
if (mMemWatchProcesses.getMap().size() > 0) {
pw.println(" Mem watch processes:");
final ArrayMap<String, SparseArray<Pair<Long, String>>> procs
= mMemWatchProcesses.getMap();
for (int i=0; i<procs.size(); i++) {
final String proc = procs.keyAt(i);
final SparseArray<Pair<Long, String>> uids = procs.valueAt(i);
for (int j=0; j<uids.size(); j++) {
if (needSep) {
pw.println();
needSep = false;
}
StringBuilder sb = new StringBuilder();
sb.append(" ").append(proc).append('/');
UserHandle.formatUid(sb, uids.keyAt(j));
Pair<Long, String> val = uids.valueAt(j);
sb.append(": "); DebugUtils.sizeValueToString(val.first, sb);
if (val.second != null) {
sb.append(", report to ").append(val.second);
}
pw.println(sb.toString());
}
}
pw.print(" mMemWatchDumpProcName="); pw.println(mMemWatchDumpProcName);
pw.print(" mMemWatchDumpFile="); pw.println(mMemWatchDumpFile);
pw.print(" mMemWatchDumpPid="); pw.print(mMemWatchDumpPid);
pw.print(" mMemWatchDumpUid="); pw.println(mMemWatchDumpUid);
}
if (mTrackAllocationApp != null) {
if (dumpPackage == null || dumpPackage.equals(mTrackAllocationApp)) {
if (needSep) {
pw.println();
needSep = false;
}
pw.println(" mTrackAllocationApp=" + mTrackAllocationApp);
}
}
if (mProfileApp != null || mProfileProc != null || (mProfilerInfo != null &&
(mProfilerInfo.profileFile != null || mProfilerInfo.profileFd != null))) {
if (dumpPackage == null || dumpPackage.equals(mProfileApp)) {
if (needSep) {
pw.println();
needSep = false;
}
pw.println(" mProfileApp=" + mProfileApp + " mProfileProc=" + mProfileProc);
if (mProfilerInfo != null) {
pw.println(" mProfileFile=" + mProfilerInfo.profileFile + " mProfileFd=" +
mProfilerInfo.profileFd);
pw.println(" mSamplingInterval=" + mProfilerInfo.samplingInterval +
" mAutoStopProfiler=" + mProfilerInfo.autoStopProfiler +
" mStreamingOutput=" + mProfilerInfo.streamingOutput);
pw.println(" mProfileType=" + mProfileType);
}
}
}
if (mNativeDebuggingApp != null) {
if (dumpPackage == null || dumpPackage.equals(mNativeDebuggingApp)) {
if (needSep) {
pw.println();
needSep = false;
}
pw.println(" mNativeDebuggingApp=" + mNativeDebuggingApp);
}
}
if (dumpPackage == null) {
if (mAlwaysFinishActivities) {
pw.println(" mAlwaysFinishActivities=" + mAlwaysFinishActivities);
}
if (mController != null) {
pw.println(" mController=" + mController
+ " mControllerIsAMonkey=" + mControllerIsAMonkey);
}
if (dumpAll) {
pw.println(" Total persistent processes: " + numPers);
pw.println(" mProcessesReady=" + mProcessesReady
+ " mSystemReady=" + mSystemReady
+ " mBooted=" + mBooted
+ " mFactoryTest=" + mFactoryTest);
pw.println(" mBooting=" + mBooting
+ " mCallFinishBooting=" + mCallFinishBooting
+ " mBootAnimationComplete=" + mBootAnimationComplete);
pw.print(" mLastPowerCheckUptime=");
TimeUtils.formatDuration(mLastPowerCheckUptime, pw);
pw.println("");
pw.println(" mGoingToSleep=" + mStackSupervisor.mGoingToSleep);
pw.println(" mLaunchingActivity=" + mStackSupervisor.mLaunchingActivity);
pw.println(" mAdjSeq=" + mAdjSeq + " mLruSeq=" + mLruSeq);
pw.println(" mNumNonCachedProcs=" + mNumNonCachedProcs
+ " (" + mLruProcesses.size() + " total)"
+ " mNumCachedHiddenProcs=" + mNumCachedHiddenProcs
+ " mNumServiceProcs=" + mNumServiceProcs
+ " mNewNumServiceProcs=" + mNewNumServiceProcs);
pw.println(" mAllowLowerMemLevel=" + mAllowLowerMemLevel
+ " mLastMemoryLevel=" + mLastMemoryLevel
+ " mLastNumProcesses=" + mLastNumProcesses);
long now = SystemClock.uptimeMillis();
pw.print(" mLastIdleTime=");
TimeUtils.formatDuration(now, mLastIdleTime, pw);
pw.print(" mLowRamSinceLastIdle=");
TimeUtils.formatDuration(getLowRamTimeSinceIdle(now), pw);
pw.println();
}
}
if (!printedAnything) {
pw.println(" (nothing)");
}
}
boolean dumpProcessesToGc(FileDescriptor fd, PrintWriter pw, String[] args,
int opti, boolean needSep, boolean dumpAll, String dumpPackage) {
if (mProcessesToGc.size() > 0) {
boolean printed = false;
long now = SystemClock.uptimeMillis();
for (int i=0; i<mProcessesToGc.size(); i++) {
ProcessRecord proc = mProcessesToGc.get(i);
if (dumpPackage != null && !dumpPackage.equals(proc.info.packageName)) {
continue;
}
if (!printed) {
if (needSep) pw.println();
needSep = true;
pw.println(" Processes that are waiting to GC:");
printed = true;
}
pw.print(" Process "); pw.println(proc);
pw.print(" lowMem="); pw.print(proc.reportLowMemory);
pw.print(", last gced=");
pw.print(now-proc.lastRequestedGc);
pw.print(" ms ago, last lowMem=");
pw.print(now-proc.lastLowMemory);
pw.println(" ms ago");
}
}
return needSep;
}
void printOomLevel(PrintWriter pw, String name, int adj) {
pw.print(" ");
if (adj >= 0) {
pw.print(' ');
if (adj < 10) pw.print(' ');
} else {
if (adj > -10) pw.print(' ');
}
pw.print(adj);
pw.print(": ");
pw.print(name);
pw.print(" (");
pw.print(stringifySize(mProcessList.getMemLevel(adj), 1024));
pw.println(")");
}
boolean dumpOomLocked(FileDescriptor fd, PrintWriter pw, String[] args,
int opti, boolean dumpAll) {
boolean needSep = false;
if (mLruProcesses.size() > 0) {
if (needSep) pw.println();
needSep = true;
pw.println(" OOM levels:");
printOomLevel(pw, "SYSTEM_ADJ", ProcessList.SYSTEM_ADJ);
printOomLevel(pw, "PERSISTENT_PROC_ADJ", ProcessList.PERSISTENT_PROC_ADJ);
printOomLevel(pw, "PERSISTENT_SERVICE_ADJ", ProcessList.PERSISTENT_SERVICE_ADJ);
printOomLevel(pw, "FOREGROUND_APP_ADJ", ProcessList.FOREGROUND_APP_ADJ);
printOomLevel(pw, "VISIBLE_APP_ADJ", ProcessList.VISIBLE_APP_ADJ);
printOomLevel(pw, "PERCEPTIBLE_APP_ADJ", ProcessList.PERCEPTIBLE_APP_ADJ);
printOomLevel(pw, "BACKUP_APP_ADJ", ProcessList.BACKUP_APP_ADJ);
printOomLevel(pw, "HEAVY_WEIGHT_APP_ADJ", ProcessList.HEAVY_WEIGHT_APP_ADJ);
printOomLevel(pw, "SERVICE_ADJ", ProcessList.SERVICE_ADJ);
printOomLevel(pw, "HOME_APP_ADJ", ProcessList.HOME_APP_ADJ);
printOomLevel(pw, "PREVIOUS_APP_ADJ", ProcessList.PREVIOUS_APP_ADJ);
printOomLevel(pw, "SERVICE_B_ADJ", ProcessList.SERVICE_B_ADJ);
printOomLevel(pw, "CACHED_APP_MIN_ADJ", ProcessList.CACHED_APP_MIN_ADJ);
printOomLevel(pw, "CACHED_APP_MAX_ADJ", ProcessList.CACHED_APP_MAX_ADJ);
if (needSep) pw.println();
pw.print(" Process OOM control ("); pw.print(mLruProcesses.size());
pw.print(" total, non-act at ");
pw.print(mLruProcesses.size()-mLruProcessActivityStart);
pw.print(", non-svc at ");
pw.print(mLruProcesses.size()-mLruProcessServiceStart);
pw.println("):");
dumpProcessOomList(pw, this, mLruProcesses, " ", "Proc", "PERS", true, null);
needSep = true;
}
dumpProcessesToGc(fd, pw, args, opti, needSep, dumpAll, null);
pw.println();
pw.println(" mHomeProcess: " + mHomeProcess);
pw.println(" mPreviousProcess: " + mPreviousProcess);
if (mHeavyWeightProcess != null) {
pw.println(" mHeavyWeightProcess: " + mHeavyWeightProcess);
}
return true;
}
/**
* There are three ways to call this:
* - no provider specified: dump all the providers
* - a flattened component name that matched an existing provider was specified as the
* first arg: dump that one provider
* - the first arg isn't the flattened component name of an existing provider:
* dump all providers whose component contains the first arg as a substring
*/
protected boolean dumpProvider(FileDescriptor fd, PrintWriter pw, String name, String[] args,
int opti, boolean dumpAll) {
return mProviderMap.dumpProvider(fd, pw, name, args, opti, dumpAll);
}
static class ItemMatcher {
ArrayList<ComponentName> components;
ArrayList<String> strings;
ArrayList<Integer> objects;
boolean all;
ItemMatcher() {
all = true;
}
void build(String name) {
ComponentName componentName = ComponentName.unflattenFromString(name);
if (componentName != null) {
if (components == null) {
components = new ArrayList<ComponentName>();
}
components.add(componentName);
all = false;
} else {
int objectId = 0;
// Not a '/' separated full component name; maybe an object ID?
try {
objectId = Integer.parseInt(name, 16);
if (objects == null) {
objects = new ArrayList<Integer>();
}
objects.add(objectId);
all = false;
} catch (RuntimeException e) {
// Not an integer; just do string match.
if (strings == null) {
strings = new ArrayList<String>();
}
strings.add(name);
all = false;
}
}
}
int build(String[] args, int opti) {
for (; opti<args.length; opti++) {
String name = args[opti];
if ("--".equals(name)) {
return opti+1;
}
build(name);
}
return opti;
}
boolean match(Object object, ComponentName comp) {
if (all) {
return true;
}
if (components != null) {
for (int i=0; i<components.size(); i++) {
if (components.get(i).equals(comp)) {
return true;
}
}
}
if (objects != null) {
for (int i=0; i<objects.size(); i++) {
if (System.identityHashCode(object) == objects.get(i)) {
return true;
}
}
}
if (strings != null) {
String flat = comp.flattenToString();
for (int i=0; i<strings.size(); i++) {
if (flat.contains(strings.get(i))) {
return true;
}
}
}
return false;
}
}
/**
* There are three things that cmd can be:
* - a flattened component name that matches an existing activity
* - the cmd arg isn't the flattened component name of an existing activity:
* dump all activity whose component contains the cmd as a substring
* - A hex number of the ActivityRecord object instance.
*
* @param dumpVisibleStacksOnly dump activity with {@param name} only if in a visible stack
* @param dumpFocusedStackOnly dump activity with {@param name} only if in the focused stack
*/
protected boolean dumpActivity(FileDescriptor fd, PrintWriter pw, String name, String[] args,
int opti, boolean dumpAll, boolean dumpVisibleStacksOnly, boolean dumpFocusedStackOnly) {
ArrayList<ActivityRecord> activities;
synchronized (this) {
activities = mStackSupervisor.getDumpActivitiesLocked(name, dumpVisibleStacksOnly,
dumpFocusedStackOnly);
}
if (activities.size() <= 0) {
return false;
}
String[] newArgs = new String[args.length - opti];
System.arraycopy(args, opti, newArgs, 0, args.length - opti);
TaskRecord lastTask = null;
boolean needSep = false;
for (int i=activities.size()-1; i>=0; i--) {
ActivityRecord r = activities.get(i);
if (needSep) {
pw.println();
}
needSep = true;
synchronized (this) {
final TaskRecord task = r.getTask();
if (lastTask != task) {
lastTask = task;
pw.print("TASK "); pw.print(lastTask.affinity);
pw.print(" id="); pw.print(lastTask.taskId);
pw.print(" userId="); pw.println(lastTask.userId);
if (dumpAll) {
lastTask.dump(pw, " ");
}
}
}
dumpActivity(" ", fd, pw, activities.get(i), newArgs, dumpAll);
}
return true;
}
/**
* Invokes IApplicationThread.dumpActivity() on the thread of the specified activity if
* there is a thread associated with the activity.
*/
private void dumpActivity(String prefix, FileDescriptor fd, PrintWriter pw,
final ActivityRecord r, String[] args, boolean dumpAll) {
String innerPrefix = prefix + " ";
synchronized (this) {
pw.print(prefix); pw.print("ACTIVITY "); pw.print(r.shortComponentName);
pw.print(" "); pw.print(Integer.toHexString(System.identityHashCode(r)));
pw.print(" pid=");
if (r.app != null) pw.println(r.app.pid);
else pw.println("(not running)");
if (dumpAll) {
r.dump(pw, innerPrefix);
}
}
if (r.app != null && r.app.thread != null) {
// flush anything that is already in the PrintWriter since the thread is going
// to write to the file descriptor directly
pw.flush();
try {
TransferPipe tp = new TransferPipe();
try {
r.app.thread.dumpActivity(tp.getWriteFd(),
r.appToken, innerPrefix, args);
tp.go(fd);
} finally {
tp.kill();
}
} catch (IOException e) {
pw.println(innerPrefix + "Failure while dumping the activity: " + e);
} catch (RemoteException e) {
pw.println(innerPrefix + "Got a RemoteException while dumping the activity");
}
}
}
void writeBroadcastsToProtoLocked(ProtoOutputStream proto) {
if (mRegisteredReceivers.size() > 0) {
Iterator it = mRegisteredReceivers.values().iterator();
while (it.hasNext()) {
ReceiverList r = (ReceiverList)it.next();
r.writeToProto(proto, BroadcastProto.RECEIVER_LIST);
}
}
mReceiverResolver.writeToProto(proto, BroadcastProto.RECEIVER_RESOLVER);
for (BroadcastQueue q : mBroadcastQueues) {
q.writeToProto(proto, BroadcastProto.BROADCAST_QUEUE);
}
for (int user=0; user<mStickyBroadcasts.size(); user++) {
long token = proto.start(BroadcastProto.STICKY_BROADCASTS);
proto.write(StickyBroadcastProto.USER, mStickyBroadcasts.keyAt(user));
for (Map.Entry<String, ArrayList<Intent>> ent
: mStickyBroadcasts.valueAt(user).entrySet()) {
long actionToken = proto.start(StickyBroadcastProto.ACTIONS);
proto.write(StickyBroadcastProto.StickyAction.NAME, ent.getKey());
for (Intent intent : ent.getValue()) {
intent.writeToProto(proto, StickyBroadcastProto.StickyAction.INTENTS,
false, true, true, false);
}
proto.end(actionToken);
}
proto.end(token);
}
long handlerToken = proto.start(BroadcastProto.HANDLER);
proto.write(BroadcastProto.MainHandler.HANDLER, mHandler.toString());
mHandler.getLooper().writeToProto(proto, BroadcastProto.MainHandler.LOOPER);
proto.end(handlerToken);
}
void dumpBroadcastsLocked(FileDescriptor fd, PrintWriter pw, String[] args,
int opti, boolean dumpAll, String dumpPackage) {
boolean needSep = false;
boolean onlyHistory = false;
boolean printedAnything = false;
if ("history".equals(dumpPackage)) {
if (opti < args.length && "-s".equals(args[opti])) {
dumpAll = false;
}
onlyHistory = true;
dumpPackage = null;
}
pw.println("ACTIVITY MANAGER BROADCAST STATE (dumpsys activity broadcasts)");
if (!onlyHistory && dumpAll) {
if (mRegisteredReceivers.size() > 0) {
boolean printed = false;
Iterator it = mRegisteredReceivers.values().iterator();
while (it.hasNext()) {
ReceiverList r = (ReceiverList)it.next();
if (dumpPackage != null && (r.app == null ||
!dumpPackage.equals(r.app.info.packageName))) {
continue;
}
if (!printed) {
pw.println(" Registered Receivers:");
needSep = true;
printed = true;
printedAnything = true;
}
pw.print(" * "); pw.println(r);
r.dump(pw, " ");
}
}
if (mReceiverResolver.dump(pw, needSep ?
"\n Receiver Resolver Table:" : " Receiver Resolver Table:",
" ", dumpPackage, false, false)) {
needSep = true;
printedAnything = true;
}
}
for (BroadcastQueue q : mBroadcastQueues) {
needSep = q.dumpLocked(fd, pw, args, opti, dumpAll, dumpPackage, needSep);
printedAnything |= needSep;
}
needSep = true;
if (!onlyHistory && mStickyBroadcasts != null && dumpPackage == null) {
for (int user=0; user<mStickyBroadcasts.size(); user++) {
if (needSep) {
pw.println();
}
needSep = true;
printedAnything = true;
pw.print(" Sticky broadcasts for user ");
pw.print(mStickyBroadcasts.keyAt(user)); pw.println(":");
StringBuilder sb = new StringBuilder(128);
for (Map.Entry<String, ArrayList<Intent>> ent
: mStickyBroadcasts.valueAt(user).entrySet()) {
pw.print(" * Sticky action "); pw.print(ent.getKey());
if (dumpAll) {
pw.println(":");
ArrayList<Intent> intents = ent.getValue();
final int N = intents.size();
for (int i=0; i<N; i++) {
sb.setLength(0);
sb.append(" Intent: ");
intents.get(i).toShortString(sb, false, true, false, false);
pw.println(sb.toString());
Bundle bundle = intents.get(i).getExtras();
if (bundle != null) {
pw.print(" ");
pw.println(bundle.toString());
}
}
} else {
pw.println("");
}
}
}
}
if (!onlyHistory && dumpAll) {
pw.println();
for (BroadcastQueue queue : mBroadcastQueues) {
pw.println(" mBroadcastsScheduled [" + queue.mQueueName + "]="
+ queue.mBroadcastsScheduled);
}
pw.println(" mHandler:");
mHandler.dump(new PrintWriterPrinter(pw), " ");
needSep = true;
printedAnything = true;
}
if (!printedAnything) {
pw.println(" (nothing)");
}
}
void dumpBroadcastStatsLocked(FileDescriptor fd, PrintWriter pw, String[] args,
int opti, boolean dumpAll, String dumpPackage) {
if (mCurBroadcastStats == null) {
return;
}
pw.println("ACTIVITY MANAGER BROADCAST STATS STATE (dumpsys activity broadcast-stats)");
final long now = SystemClock.elapsedRealtime();
if (mLastBroadcastStats != null) {
pw.print(" Last stats (from ");
TimeUtils.formatDuration(mLastBroadcastStats.mStartRealtime, now, pw);
pw.print(" to ");
TimeUtils.formatDuration(mLastBroadcastStats.mEndRealtime, now, pw);
pw.print(", ");
TimeUtils.formatDuration(mLastBroadcastStats.mEndUptime
- mLastBroadcastStats.mStartUptime, pw);
pw.println(" uptime):");
if (!mLastBroadcastStats.dumpStats(pw, " ", dumpPackage)) {
pw.println(" (nothing)");
}
pw.println();
}
pw.print(" Current stats (from ");
TimeUtils.formatDuration(mCurBroadcastStats.mStartRealtime, now, pw);
pw.print(" to now, ");
TimeUtils.formatDuration(SystemClock.uptimeMillis()
- mCurBroadcastStats.mStartUptime, pw);
pw.println(" uptime):");
if (!mCurBroadcastStats.dumpStats(pw, " ", dumpPackage)) {
pw.println(" (nothing)");
}
}
void dumpBroadcastStatsCheckinLocked(FileDescriptor fd, PrintWriter pw, String[] args,
int opti, boolean fullCheckin, String dumpPackage) {
if (mCurBroadcastStats == null) {
return;
}
if (mLastBroadcastStats != null) {
mLastBroadcastStats.dumpCheckinStats(pw, dumpPackage);
if (fullCheckin) {
mLastBroadcastStats = null;
return;
}
}
mCurBroadcastStats.dumpCheckinStats(pw, dumpPackage);
if (fullCheckin) {
mCurBroadcastStats = null;
}
}
void dumpProvidersLocked(FileDescriptor fd, PrintWriter pw, String[] args,
int opti, boolean dumpAll, String dumpPackage) {
boolean needSep;
boolean printedAnything = false;
ItemMatcher matcher = new ItemMatcher();
matcher.build(args, opti);
pw.println("ACTIVITY MANAGER CONTENT PROVIDERS (dumpsys activity providers)");
needSep = mProviderMap.dumpProvidersLocked(pw, dumpAll, dumpPackage);
printedAnything |= needSep;
if (mLaunchingProviders.size() > 0) {
boolean printed = false;
for (int i=mLaunchingProviders.size()-1; i>=0; i--) {
ContentProviderRecord r = mLaunchingProviders.get(i);
if (dumpPackage != null && !dumpPackage.equals(r.name.getPackageName())) {
continue;
}
if (!printed) {
if (needSep) pw.println();
needSep = true;
pw.println(" Launching content providers:");
printed = true;
printedAnything = true;
}
pw.print(" Launching #"); pw.print(i); pw.print(": ");
pw.println(r);
}
}
if (!printedAnything) {
pw.println(" (nothing)");
}
}
void dumpPermissionsLocked(FileDescriptor fd, PrintWriter pw, String[] args,
int opti, boolean dumpAll, String dumpPackage) {
boolean needSep = false;
boolean printedAnything = false;
pw.println("ACTIVITY MANAGER URI PERMISSIONS (dumpsys activity permissions)");
if (mGrantedUriPermissions.size() > 0) {
boolean printed = false;
int dumpUid = -2;
if (dumpPackage != null) {
try {
dumpUid = mContext.getPackageManager().getPackageUidAsUser(dumpPackage,
MATCH_ANY_USER, 0);
} catch (NameNotFoundException e) {
dumpUid = -1;
}
}
for (int i=0; i<mGrantedUriPermissions.size(); i++) {
int uid = mGrantedUriPermissions.keyAt(i);
if (dumpUid >= -1 && UserHandle.getAppId(uid) != dumpUid) {
continue;
}
final ArrayMap<GrantUri, UriPermission> perms = mGrantedUriPermissions.valueAt(i);
if (!printed) {
if (needSep) pw.println();
needSep = true;
pw.println(" Granted Uri Permissions:");
printed = true;
printedAnything = true;
}
pw.print(" * UID "); pw.print(uid); pw.println(" holds:");
for (UriPermission perm : perms.values()) {
pw.print(" "); pw.println(perm);
if (dumpAll) {
perm.dump(pw, " ");
}
}
}
}
if (!printedAnything) {
pw.println(" (nothing)");
}
}
void dumpPendingIntentsLocked(FileDescriptor fd, PrintWriter pw, String[] args,
int opti, boolean dumpAll, String dumpPackage) {
boolean printed = false;
pw.println("ACTIVITY MANAGER PENDING INTENTS (dumpsys activity intents)");
if (mIntentSenderRecords.size() > 0) {
// Organize these by package name, so they are easier to read.
final ArrayMap<String, ArrayList<PendingIntentRecord>> byPackage = new ArrayMap<>();
final ArrayList<WeakReference<PendingIntentRecord>> weakRefs = new ArrayList<>();
final Iterator<WeakReference<PendingIntentRecord>> it
= mIntentSenderRecords.values().iterator();
while (it.hasNext()) {
WeakReference<PendingIntentRecord> ref = it.next();
PendingIntentRecord rec = ref != null ? ref.get() : null;
if (rec == null) {
weakRefs.add(ref);
continue;
}
if (dumpPackage != null && !dumpPackage.equals(rec.key.packageName)) {
continue;
}
ArrayList<PendingIntentRecord> list = byPackage.get(rec.key.packageName);
if (list == null) {
list = new ArrayList<>();
byPackage.put(rec.key.packageName, list);
}
list.add(rec);
}
for (int i = 0; i < byPackage.size(); i++) {
ArrayList<PendingIntentRecord> intents = byPackage.valueAt(i);
printed = true;
pw.print(" * "); pw.print(byPackage.keyAt(i));
pw.print(": "); pw.print(intents.size()); pw.println(" items");
for (int j = 0; j < intents.size(); j++) {
pw.print(" #"); pw.print(j); pw.print(": "); pw.println(intents.get(j));
if (dumpAll) {
intents.get(j).dump(pw, " ");
}
}
}
if (weakRefs.size() > 0) {
printed = true;
pw.println(" * WEAK REFS:");
for (int i = 0; i < weakRefs.size(); i++) {
pw.print(" #"); pw.print(i); pw.print(": "); pw.println(weakRefs.get(i));
}
}
}
if (!printed) {
pw.println(" (nothing)");
}
}
private static final int dumpProcessList(PrintWriter pw,
ActivityManagerService service, List list,
String prefix, String normalLabel, String persistentLabel,
String dumpPackage) {
int numPers = 0;
final int N = list.size()-1;
for (int i=N; i>=0; i--) {
ProcessRecord r = (ProcessRecord)list.get(i);
if (dumpPackage != null && !dumpPackage.equals(r.info.packageName)) {
continue;
}
pw.println(String.format("%s%s #%2d: %s",
prefix, (r.persistent ? persistentLabel : normalLabel),
i, r.toString()));
if (r.persistent) {
numPers++;
}
}
return numPers;
}
private static final boolean dumpProcessOomList(PrintWriter pw,
ActivityManagerService service, List<ProcessRecord> origList,
String prefix, String normalLabel, String persistentLabel,
boolean inclDetails, String dumpPackage) {
ArrayList<Pair<ProcessRecord, Integer>> list
= new ArrayList<Pair<ProcessRecord, Integer>>(origList.size());
for (int i=0; i<origList.size(); i++) {
ProcessRecord r = origList.get(i);
if (dumpPackage != null && !r.pkgList.containsKey(dumpPackage)) {
continue;
}
list.add(new Pair<ProcessRecord, Integer>(origList.get(i), i));
}
if (list.size() <= 0) {
return false;
}
Comparator<Pair<ProcessRecord, Integer>> comparator
= new Comparator<Pair<ProcessRecord, Integer>>() {
@Override
public int compare(Pair<ProcessRecord, Integer> object1,
Pair<ProcessRecord, Integer> object2) {
if (object1.first.setAdj != object2.first.setAdj) {
return object1.first.setAdj > object2.first.setAdj ? -1 : 1;
}
if (object1.first.setProcState != object2.first.setProcState) {
return object1.first.setProcState > object2.first.setProcState ? -1 : 1;
}
if (object1.second.intValue() != object2.second.intValue()) {
return object1.second.intValue() > object2.second.intValue() ? -1 : 1;
}
return 0;
}
};
Collections.sort(list, comparator);
final long curUptime = SystemClock.uptimeMillis();
final long uptimeSince = curUptime - service.mLastPowerCheckUptime;
for (int i=list.size()-1; i>=0; i--) {
ProcessRecord r = list.get(i).first;
String oomAdj = ProcessList.makeOomAdjString(r.setAdj);
char schedGroup;
switch (r.setSchedGroup) {
case ProcessList.SCHED_GROUP_BACKGROUND:
schedGroup = 'B';
break;
case ProcessList.SCHED_GROUP_DEFAULT:
schedGroup = 'F';
break;
case ProcessList.SCHED_GROUP_TOP_APP:
schedGroup = 'T';
break;
default:
schedGroup = '?';
break;
}
char foreground;
if (r.foregroundActivities) {
foreground = 'A';
} else if (r.foregroundServices) {
foreground = 'S';
} else {
foreground = ' ';
}
String procState = ProcessList.makeProcStateString(r.curProcState);
pw.print(prefix);
pw.print(r.persistent ? persistentLabel : normalLabel);
pw.print(" #");
int num = (origList.size()-1)-list.get(i).second;
if (num < 10) pw.print(' ');
pw.print(num);
pw.print(": ");
pw.print(oomAdj);
pw.print(' ');
pw.print(schedGroup);
pw.print('/');
pw.print(foreground);
pw.print('/');
pw.print(procState);
pw.print(" trm:");
if (r.trimMemoryLevel < 10) pw.print(' ');
pw.print(r.trimMemoryLevel);
pw.print(' ');
pw.print(r.toShortString());
pw.print(" (");
pw.print(r.adjType);
pw.println(')');
if (r.adjSource != null || r.adjTarget != null) {
pw.print(prefix);
pw.print(" ");
if (r.adjTarget instanceof ComponentName) {
pw.print(((ComponentName)r.adjTarget).flattenToShortString());
} else if (r.adjTarget != null) {
pw.print(r.adjTarget.toString());
} else {
pw.print("{null}");
}
pw.print("<=");
if (r.adjSource instanceof ProcessRecord) {
pw.print("Proc{");
pw.print(((ProcessRecord)r.adjSource).toShortString());
pw.println("}");
} else if (r.adjSource != null) {
pw.println(r.adjSource.toString());
} else {
pw.println("{null}");
}
}
if (inclDetails) {
pw.print(prefix);
pw.print(" ");
pw.print("oom: max="); pw.print(r.maxAdj);
pw.print(" curRaw="); pw.print(r.curRawAdj);
pw.print(" setRaw="); pw.print(r.setRawAdj);
pw.print(" cur="); pw.print(r.curAdj);
pw.print(" set="); pw.println(r.setAdj);
pw.print(prefix);
pw.print(" ");
pw.print("state: cur="); pw.print(ProcessList.makeProcStateString(r.curProcState));
pw.print(" set="); pw.print(ProcessList.makeProcStateString(r.setProcState));
pw.print(" lastPss="); DebugUtils.printSizeValue(pw, r.lastPss*1024);
pw.print(" lastSwapPss="); DebugUtils.printSizeValue(pw, r.lastSwapPss*1024);
pw.print(" lastCachedPss="); DebugUtils.printSizeValue(pw, r.lastCachedPss*1024);
pw.println();
pw.print(prefix);
pw.print(" ");
pw.print("cached="); pw.print(r.cached);
pw.print(" empty="); pw.print(r.empty);
pw.print(" hasAboveClient="); pw.println(r.hasAboveClient);
if (r.setProcState >= ActivityManager.PROCESS_STATE_SERVICE) {
if (r.lastCpuTime != 0) {
long timeUsed = r.curCpuTime - r.lastCpuTime;
pw.print(prefix);
pw.print(" ");
pw.print("run cpu over ");
TimeUtils.formatDuration(uptimeSince, pw);
pw.print(" used ");
TimeUtils.formatDuration(timeUsed, pw);
pw.print(" (");
pw.print((timeUsed*100)/uptimeSince);
pw.println("%)");
}
}
}
}
return true;
}
ArrayList<ProcessRecord> collectProcesses(PrintWriter pw, int start, boolean allPkgs,
String[] args) {
ArrayList<ProcessRecord> procs;
synchronized (this) {
if (args != null && args.length > start
&& args[start].charAt(0) != '-') {
procs = new ArrayList<ProcessRecord>();
int pid = -1;
try {
pid = Integer.parseInt(args[start]);
} catch (NumberFormatException e) {
}
for (int i=mLruProcesses.size()-1; i>=0; i--) {
ProcessRecord proc = mLruProcesses.get(i);
if (proc.pid == pid) {
procs.add(proc);
} else if (allPkgs && proc.pkgList != null
&& proc.pkgList.containsKey(args[start])) {
procs.add(proc);
} else if (proc.processName.equals(args[start])) {
procs.add(proc);
}
}
if (procs.size() <= 0) {
return null;
}
} else {
procs = new ArrayList<ProcessRecord>(mLruProcesses);
}
}
return procs;
}
final void dumpGraphicsHardwareUsage(FileDescriptor fd,
PrintWriter pw, String[] args) {
ArrayList<ProcessRecord> procs = collectProcesses(pw, 0, false, args);
if (procs == null) {
pw.println("No process found for: " + args[0]);
return;
}
long uptime = SystemClock.uptimeMillis();
long realtime = SystemClock.elapsedRealtime();
pw.println("Applications Graphics Acceleration Info:");
pw.println("Uptime: " + uptime + " Realtime: " + realtime);
for (int i = procs.size() - 1 ; i >= 0 ; i--) {
ProcessRecord r = procs.get(i);
if (r.thread != null) {
pw.println("\n** Graphics info for pid " + r.pid + " [" + r.processName + "] **");
pw.flush();
try {
TransferPipe tp = new TransferPipe();
try {
r.thread.dumpGfxInfo(tp.getWriteFd(), args);
tp.go(fd);
} finally {
tp.kill();
}
} catch (IOException e) {
pw.println("Failure while dumping the app: " + r);
pw.flush();
} catch (RemoteException e) {
pw.println("Got a RemoteException while dumping the app " + r);
pw.flush();
}
}
}
}
final void dumpDbInfo(FileDescriptor fd, PrintWriter pw, String[] args) {
ArrayList<ProcessRecord> procs = collectProcesses(pw, 0, false, args);
if (procs == null) {
pw.println("No process found for: " + args[0]);
return;
}
pw.println("Applications Database Info:");
for (int i = procs.size() - 1 ; i >= 0 ; i--) {
ProcessRecord r = procs.get(i);
if (r.thread != null) {
pw.println("\n** Database info for pid " + r.pid + " [" + r.processName + "] **");
pw.flush();
try {
TransferPipe tp = new TransferPipe();
try {
r.thread.dumpDbInfo(tp.getWriteFd(), args);
tp.go(fd);
} finally {
tp.kill();
}
} catch (IOException e) {
pw.println("Failure while dumping the app: " + r);
pw.flush();
} catch (RemoteException e) {
pw.println("Got a RemoteException while dumping the app " + r);
pw.flush();
}
}
}
}
final static class MemItem {
final boolean isProc;
final String label;
final String shortLabel;
final long pss;
final long swapPss;
final int id;
final boolean hasActivities;
ArrayList<MemItem> subitems;
public MemItem(String _label, String _shortLabel, long _pss, long _swapPss, int _id,
boolean _hasActivities) {
isProc = true;
label = _label;
shortLabel = _shortLabel;
pss = _pss;
swapPss = _swapPss;
id = _id;
hasActivities = _hasActivities;
}
public MemItem(String _label, String _shortLabel, long _pss, long _swapPss, int _id) {
isProc = false;
label = _label;
shortLabel = _shortLabel;
pss = _pss;
swapPss = _swapPss;
id = _id;
hasActivities = false;
}
}
static final void dumpMemItems(PrintWriter pw, String prefix, String tag,
ArrayList<MemItem> items, boolean sort, boolean isCompact, boolean dumpSwapPss) {
if (sort && !isCompact) {
Collections.sort(items, new Comparator<MemItem>() {
@Override
public int compare(MemItem lhs, MemItem rhs) {
if (lhs.pss < rhs.pss) {
return 1;
} else if (lhs.pss > rhs.pss) {
return -1;
}
return 0;
}
});
}
for (int i=0; i<items.size(); i++) {
MemItem mi = items.get(i);
if (!isCompact) {
if (dumpSwapPss) {
pw.printf("%s%s: %-60s (%s in swap)\n", prefix, stringifyKBSize(mi.pss),
mi.label, stringifyKBSize(mi.swapPss));
} else {
pw.printf("%s%s: %s\n", prefix, stringifyKBSize(mi.pss), mi.label);
}
} else if (mi.isProc) {
pw.print("proc,"); pw.print(tag); pw.print(","); pw.print(mi.shortLabel);
pw.print(","); pw.print(mi.id); pw.print(","); pw.print(mi.pss); pw.print(",");
pw.print(dumpSwapPss ? mi.swapPss : "N/A");
pw.println(mi.hasActivities ? ",a" : ",e");
} else {
pw.print(tag); pw.print(","); pw.print(mi.shortLabel); pw.print(",");
pw.print(mi.pss); pw.print(","); pw.println(dumpSwapPss ? mi.swapPss : "N/A");
}
if (mi.subitems != null) {
dumpMemItems(pw, prefix + " ", mi.shortLabel, mi.subitems,
true, isCompact, dumpSwapPss);
}
}
}
// These are in KB.
static final long[] DUMP_MEM_BUCKETS = new long[] {
5*1024, 7*1024, 10*1024, 15*1024, 20*1024, 30*1024, 40*1024, 80*1024,
120*1024, 160*1024, 200*1024,
250*1024, 300*1024, 350*1024, 400*1024, 500*1024, 600*1024, 800*1024,
1*1024*1024, 2*1024*1024, 5*1024*1024, 10*1024*1024, 20*1024*1024
};
static final void appendMemBucket(StringBuilder out, long memKB, String label,
boolean stackLike) {
int start = label.lastIndexOf('.');
if (start >= 0) start++;
else start = 0;
int end = label.length();
for (int i=0; i<DUMP_MEM_BUCKETS.length; i++) {
if (DUMP_MEM_BUCKETS[i] >= memKB) {
long bucket = DUMP_MEM_BUCKETS[i]/1024;
out.append(bucket);
out.append(stackLike ? "MB." : "MB ");
out.append(label, start, end);
return;
}
}
out.append(memKB/1024);
out.append(stackLike ? "MB." : "MB ");
out.append(label, start, end);
}
static final int[] DUMP_MEM_OOM_ADJ = new int[] {
ProcessList.NATIVE_ADJ,
ProcessList.SYSTEM_ADJ, ProcessList.PERSISTENT_PROC_ADJ,
ProcessList.PERSISTENT_SERVICE_ADJ, ProcessList.FOREGROUND_APP_ADJ,
ProcessList.VISIBLE_APP_ADJ, ProcessList.PERCEPTIBLE_APP_ADJ,
ProcessList.BACKUP_APP_ADJ, ProcessList.HEAVY_WEIGHT_APP_ADJ,
ProcessList.SERVICE_ADJ, ProcessList.HOME_APP_ADJ,
ProcessList.PREVIOUS_APP_ADJ, ProcessList.SERVICE_B_ADJ, ProcessList.CACHED_APP_MIN_ADJ
};
static final String[] DUMP_MEM_OOM_LABEL = new String[] {
"Native",
"System", "Persistent", "Persistent Service", "Foreground",
"Visible", "Perceptible",
"Heavy Weight", "Backup",
"A Services", "Home",
"Previous", "B Services", "Cached"
};
static final String[] DUMP_MEM_OOM_COMPACT_LABEL = new String[] {
"native",
"sys", "pers", "persvc", "fore",
"vis", "percept",
"heavy", "backup",
"servicea", "home",
"prev", "serviceb", "cached"
};
private final void dumpApplicationMemoryUsageHeader(PrintWriter pw, long uptime,
long realtime, boolean isCheckinRequest, boolean isCompact) {
if (isCompact) {
pw.print("version,"); pw.println(MEMINFO_COMPACT_VERSION);
}
if (isCheckinRequest || isCompact) {
// short checkin version
pw.print("time,"); pw.print(uptime); pw.print(","); pw.println(realtime);
} else {
pw.println("Applications Memory Usage (in Kilobytes):");
pw.println("Uptime: " + uptime + " Realtime: " + realtime);
}
}
private static final int KSM_SHARED = 0;
private static final int KSM_SHARING = 1;
private static final int KSM_UNSHARED = 2;
private static final int KSM_VOLATILE = 3;
private final long[] getKsmInfo() {
long[] longOut = new long[4];
final int[] SINGLE_LONG_FORMAT = new int[] {
PROC_SPACE_TERM| PROC_OUT_LONG
};
long[] longTmp = new long[1];
readProcFile("/sys/kernel/mm/ksm/pages_shared",
SINGLE_LONG_FORMAT, null, longTmp, null);
longOut[KSM_SHARED] = longTmp[0] * ProcessList.PAGE_SIZE / 1024;
longTmp[0] = 0;
readProcFile("/sys/kernel/mm/ksm/pages_sharing",
SINGLE_LONG_FORMAT, null, longTmp, null);
longOut[KSM_SHARING] = longTmp[0] * ProcessList.PAGE_SIZE / 1024;
longTmp[0] = 0;
readProcFile("/sys/kernel/mm/ksm/pages_unshared",
SINGLE_LONG_FORMAT, null, longTmp, null);
longOut[KSM_UNSHARED] = longTmp[0] * ProcessList.PAGE_SIZE / 1024;
longTmp[0] = 0;
readProcFile("/sys/kernel/mm/ksm/pages_volatile",
SINGLE_LONG_FORMAT, null, longTmp, null);
longOut[KSM_VOLATILE] = longTmp[0] * ProcessList.PAGE_SIZE / 1024;
return longOut;
}
private static String stringifySize(long size, int order) {
Locale locale = Locale.US;
switch (order) {
case 1:
return String.format(locale, "%,13d", size);
case 1024:
return String.format(locale, "%,9dK", size / 1024);
case 1024 * 1024:
return String.format(locale, "%,5dM", size / 1024 / 1024);
case 1024 * 1024 * 1024:
return String.format(locale, "%,1dG", size / 1024 / 1024 / 1024);
default:
throw new IllegalArgumentException("Invalid size order");
}
}
private static String stringifyKBSize(long size) {
return stringifySize(size * 1024, 1024);
}
// Update this version number in case you change the 'compact' format
private static final int MEMINFO_COMPACT_VERSION = 1;
final void dumpApplicationMemoryUsage(FileDescriptor fd,
PrintWriter pw, String prefix, String[] args, boolean brief, PrintWriter categoryPw) {
boolean dumpDetails = false;
boolean dumpFullDetails = false;
boolean dumpDalvik = false;
boolean dumpSummaryOnly = false;
boolean dumpUnreachable = false;
boolean oomOnly = false;
boolean isCompact = false;
boolean localOnly = false;
boolean packages = false;
boolean isCheckinRequest = false;
boolean dumpSwapPss = false;
int opti = 0;
while (opti < args.length) {
String opt = args[opti];
if (opt == null || opt.length() <= 0 || opt.charAt(0) != '-') {
break;
}
opti++;
if ("-a".equals(opt)) {
dumpDetails = true;
dumpFullDetails = true;
dumpDalvik = true;
dumpSwapPss = true;
} else if ("-d".equals(opt)) {
dumpDalvik = true;
} else if ("-c".equals(opt)) {
isCompact = true;
} else if ("-s".equals(opt)) {
dumpDetails = true;
dumpSummaryOnly = true;
} else if ("-S".equals(opt)) {
dumpSwapPss = true;
} else if ("--unreachable".equals(opt)) {
dumpUnreachable = true;
} else if ("--oom".equals(opt)) {
oomOnly = true;
} else if ("--local".equals(opt)) {
localOnly = true;
} else if ("--package".equals(opt)) {
packages = true;
} else if ("--checkin".equals(opt)) {
isCheckinRequest = true;
} else if ("-h".equals(opt)) {
pw.println("meminfo dump options: [-a] [-d] [-c] [-s] [--oom] [process]");
pw.println(" -a: include all available information for each process.");
pw.println(" -d: include dalvik details.");
pw.println(" -c: dump in a compact machine-parseable representation.");
pw.println(" -s: dump only summary of application memory usage.");
pw.println(" -S: dump also SwapPss.");
pw.println(" --oom: only show processes organized by oom adj.");
pw.println(" --local: only collect details locally, don't call process.");
pw.println(" --package: interpret process arg as package, dumping all");
pw.println(" processes that have loaded that package.");
pw.println(" --checkin: dump data for a checkin");
pw.println("If [process] is specified it can be the name or ");
pw.println("pid of a specific process to dump.");
return;
} else {
pw.println("Unknown argument: " + opt + "; use -h for help");
}
}
long uptime = SystemClock.uptimeMillis();
long realtime = SystemClock.elapsedRealtime();
final long[] tmpLong = new long[1];
ArrayList<ProcessRecord> procs = collectProcesses(pw, opti, packages, args);
if (procs == null) {
// No Java processes. Maybe they want to print a native process.
if (args != null && args.length > opti
&& args[opti].charAt(0) != '-') {
ArrayList<ProcessCpuTracker.Stats> nativeProcs
= new ArrayList<ProcessCpuTracker.Stats>();
updateCpuStatsNow();
int findPid = -1;
try {
findPid = Integer.parseInt(args[opti]);
} catch (NumberFormatException e) {
}
synchronized (mProcessCpuTracker) {
final int N = mProcessCpuTracker.countStats();
for (int i=0; i<N; i++) {
ProcessCpuTracker.Stats st = mProcessCpuTracker.getStats(i);
if (st.pid == findPid || (st.baseName != null
&& st.baseName.equals(args[opti]))) {
nativeProcs.add(st);
}
}
}
if (nativeProcs.size() > 0) {
dumpApplicationMemoryUsageHeader(pw, uptime, realtime, isCheckinRequest,
isCompact);
Debug.MemoryInfo mi = null;
for (int i = nativeProcs.size() - 1 ; i >= 0 ; i--) {
final ProcessCpuTracker.Stats r = nativeProcs.get(i);
final int pid = r.pid;
if (!isCheckinRequest && dumpDetails) {
pw.println("\n** MEMINFO in pid " + pid + " [" + r.baseName + "] **");
}
if (mi == null) {
mi = new Debug.MemoryInfo();
}
if (dumpDetails || (!brief && !oomOnly)) {
Debug.getMemoryInfo(pid, mi);
} else {
mi.dalvikPss = (int)Debug.getPss(pid, tmpLong, null);
mi.dalvikPrivateDirty = (int)tmpLong[0];
}
ActivityThread.dumpMemInfoTable(pw, mi, isCheckinRequest, dumpFullDetails,
dumpDalvik, dumpSummaryOnly, pid, r.baseName, 0, 0, 0, 0, 0, 0);
if (isCheckinRequest) {
pw.println();
}
}
return;
}
}
pw.println("No process found for: " + args[opti]);
return;
}
if (!brief && !oomOnly && (procs.size() == 1 || isCheckinRequest || packages)) {
dumpDetails = true;
}
dumpApplicationMemoryUsageHeader(pw, uptime, realtime, isCheckinRequest, isCompact);
String[] innerArgs = new String[args.length-opti];
System.arraycopy(args, opti, innerArgs, 0, args.length-opti);
ArrayList<MemItem> procMems = new ArrayList<MemItem>();
final SparseArray<MemItem> procMemsMap = new SparseArray<MemItem>();
long nativePss = 0;
long nativeSwapPss = 0;
long dalvikPss = 0;
long dalvikSwapPss = 0;
long[] dalvikSubitemPss = dumpDalvik ? new long[Debug.MemoryInfo.NUM_DVK_STATS] :
EmptyArray.LONG;
long[] dalvikSubitemSwapPss = dumpDalvik ? new long[Debug.MemoryInfo.NUM_DVK_STATS] :
EmptyArray.LONG;
long otherPss = 0;
long otherSwapPss = 0;
long[] miscPss = new long[Debug.MemoryInfo.NUM_OTHER_STATS];
long[] miscSwapPss = new long[Debug.MemoryInfo.NUM_OTHER_STATS];
long oomPss[] = new long[DUMP_MEM_OOM_LABEL.length];
long oomSwapPss[] = new long[DUMP_MEM_OOM_LABEL.length];
ArrayList<MemItem>[] oomProcs = (ArrayList<MemItem>[])
new ArrayList[DUMP_MEM_OOM_LABEL.length];
long totalPss = 0;
long totalSwapPss = 0;
long cachedPss = 0;
long cachedSwapPss = 0;
boolean hasSwapPss = false;
Debug.MemoryInfo mi = null;
for (int i = procs.size() - 1 ; i >= 0 ; i--) {
final ProcessRecord r = procs.get(i);
final IApplicationThread thread;
final int pid;
final int oomAdj;
final boolean hasActivities;
synchronized (this) {
thread = r.thread;
pid = r.pid;
oomAdj = r.getSetAdjWithServices();
hasActivities = r.activities.size() > 0;
}
if (thread != null) {
if (!isCheckinRequest && dumpDetails) {
pw.println("\n** MEMINFO in pid " + pid + " [" + r.processName + "] **");
}
if (mi == null) {
mi = new Debug.MemoryInfo();
}
if (dumpDetails || (!brief && !oomOnly)) {
Debug.getMemoryInfo(pid, mi);
hasSwapPss = mi.hasSwappedOutPss;
} else {
mi.dalvikPss = (int)Debug.getPss(pid, tmpLong, null);
mi.dalvikPrivateDirty = (int)tmpLong[0];
}
if (dumpDetails) {
if (localOnly) {
ActivityThread.dumpMemInfoTable(pw, mi, isCheckinRequest, dumpFullDetails,
dumpDalvik, dumpSummaryOnly, pid, r.processName, 0, 0, 0, 0, 0, 0);
if (isCheckinRequest) {
pw.println();
}
} else {
pw.flush();
try {
TransferPipe tp = new TransferPipe();
try {
thread.dumpMemInfo(tp.getWriteFd(),
mi, isCheckinRequest, dumpFullDetails,
dumpDalvik, dumpSummaryOnly, dumpUnreachable, innerArgs);
tp.go(fd);
} finally {
tp.kill();
}
} catch (IOException e) {
if (!isCheckinRequest) {
pw.println("Got IoException! " + e);
pw.flush();
}
} catch (RemoteException e) {
if (!isCheckinRequest) {
pw.println("Got RemoteException! " + e);
pw.flush();
}
}
}
}
final long myTotalPss = mi.getTotalPss();
final long myTotalUss = mi.getTotalUss();
final long myTotalSwapPss = mi.getTotalSwappedOutPss();
synchronized (this) {
if (r.thread != null && oomAdj == r.getSetAdjWithServices()) {
// Record this for posterity if the process has been stable.
r.baseProcessTracker.addPss(myTotalPss, myTotalUss, true, r.pkgList);
}
}
if (!isCheckinRequest && mi != null) {
totalPss += myTotalPss;
totalSwapPss += myTotalSwapPss;
MemItem pssItem = new MemItem(r.processName + " (pid " + pid +
(hasActivities ? " / activities)" : ")"), r.processName, myTotalPss,
myTotalSwapPss, pid, hasActivities);
procMems.add(pssItem);
procMemsMap.put(pid, pssItem);
nativePss += mi.nativePss;
nativeSwapPss += mi.nativeSwappedOutPss;
dalvikPss += mi.dalvikPss;
dalvikSwapPss += mi.dalvikSwappedOutPss;
for (int j=0; j<dalvikSubitemPss.length; j++) {
dalvikSubitemPss[j] += mi.getOtherPss(Debug.MemoryInfo.NUM_OTHER_STATS + j);
dalvikSubitemSwapPss[j] +=
mi.getOtherSwappedOutPss(Debug.MemoryInfo.NUM_OTHER_STATS + j);
}
otherPss += mi.otherPss;
otherSwapPss += mi.otherSwappedOutPss;
for (int j=0; j<Debug.MemoryInfo.NUM_OTHER_STATS; j++) {
long mem = mi.getOtherPss(j);
miscPss[j] += mem;
otherPss -= mem;
mem = mi.getOtherSwappedOutPss(j);
miscSwapPss[j] += mem;
otherSwapPss -= mem;
}
if (oomAdj >= ProcessList.CACHED_APP_MIN_ADJ) {
cachedPss += myTotalPss;
cachedSwapPss += myTotalSwapPss;
}
for (int oomIndex=0; oomIndex<oomPss.length; oomIndex++) {
if (oomIndex == (oomPss.length - 1)
|| (oomAdj >= DUMP_MEM_OOM_ADJ[oomIndex]
&& oomAdj < DUMP_MEM_OOM_ADJ[oomIndex + 1])) {
oomPss[oomIndex] += myTotalPss;
oomSwapPss[oomIndex] += myTotalSwapPss;
if (oomProcs[oomIndex] == null) {
oomProcs[oomIndex] = new ArrayList<MemItem>();
}
oomProcs[oomIndex].add(pssItem);
break;
}
}
}
}
}
long nativeProcTotalPss = 0;
if (!isCheckinRequest && procs.size() > 1 && !packages) {
// If we are showing aggregations, also look for native processes to
// include so that our aggregations are more accurate.
updateCpuStatsNow();
mi = null;
synchronized (mProcessCpuTracker) {
final int N = mProcessCpuTracker.countStats();
for (int i=0; i<N; i++) {
ProcessCpuTracker.Stats st = mProcessCpuTracker.getStats(i);
if (st.vsize > 0 && procMemsMap.indexOfKey(st.pid) < 0) {
if (mi == null) {
mi = new Debug.MemoryInfo();
}
if (!brief && !oomOnly) {
Debug.getMemoryInfo(st.pid, mi);
} else {
mi.nativePss = (int)Debug.getPss(st.pid, tmpLong, null);
mi.nativePrivateDirty = (int)tmpLong[0];
}
final long myTotalPss = mi.getTotalPss();
final long myTotalSwapPss = mi.getTotalSwappedOutPss();
totalPss += myTotalPss;
nativeProcTotalPss += myTotalPss;
MemItem pssItem = new MemItem(st.name + " (pid " + st.pid + ")",
st.name, myTotalPss, mi.getSummaryTotalSwapPss(), st.pid, false);
procMems.add(pssItem);
nativePss += mi.nativePss;
nativeSwapPss += mi.nativeSwappedOutPss;
dalvikPss += mi.dalvikPss;
dalvikSwapPss += mi.dalvikSwappedOutPss;
for (int j=0; j<dalvikSubitemPss.length; j++) {
dalvikSubitemPss[j] += mi.getOtherPss(Debug.MemoryInfo.NUM_OTHER_STATS + j);
dalvikSubitemSwapPss[j] +=
mi.getOtherSwappedOutPss(Debug.MemoryInfo.NUM_OTHER_STATS + j);
}
otherPss += mi.otherPss;
otherSwapPss += mi.otherSwappedOutPss;
for (int j=0; j<Debug.MemoryInfo.NUM_OTHER_STATS; j++) {
long mem = mi.getOtherPss(j);
miscPss[j] += mem;
otherPss -= mem;
mem = mi.getOtherSwappedOutPss(j);
miscSwapPss[j] += mem;
otherSwapPss -= mem;
}
oomPss[0] += myTotalPss;
oomSwapPss[0] += myTotalSwapPss;
if (oomProcs[0] == null) {
oomProcs[0] = new ArrayList<MemItem>();
}
oomProcs[0].add(pssItem);
}
}
}
ArrayList<MemItem> catMems = new ArrayList<MemItem>();
catMems.add(new MemItem("Native", "Native", nativePss, nativeSwapPss, -1));
final int dalvikId = -2;
catMems.add(new MemItem("Dalvik", "Dalvik", dalvikPss, dalvikSwapPss, dalvikId));
catMems.add(new MemItem("Unknown", "Unknown", otherPss, otherSwapPss, -3));
for (int j=0; j<Debug.MemoryInfo.NUM_OTHER_STATS; j++) {
String label = Debug.MemoryInfo.getOtherLabel(j);
catMems.add(new MemItem(label, label, miscPss[j], miscSwapPss[j], j));
}
if (dalvikSubitemPss.length > 0) {
// Add dalvik subitems.
for (MemItem memItem : catMems) {
int memItemStart = 0, memItemEnd = 0;
if (memItem.id == dalvikId) {
memItemStart = Debug.MemoryInfo.OTHER_DVK_STAT_DALVIK_START;
memItemEnd = Debug.MemoryInfo.OTHER_DVK_STAT_DALVIK_END;
} else if (memItem.id == Debug.MemoryInfo.OTHER_DALVIK_OTHER) {
memItemStart = Debug.MemoryInfo.OTHER_DVK_STAT_DALVIK_OTHER_START;
memItemEnd = Debug.MemoryInfo.OTHER_DVK_STAT_DALVIK_OTHER_END;
} else if (memItem.id == Debug.MemoryInfo.OTHER_DEX) {
memItemStart = Debug.MemoryInfo.OTHER_DVK_STAT_DEX_START;
memItemEnd = Debug.MemoryInfo.OTHER_DVK_STAT_DEX_END;
} else if (memItem.id == Debug.MemoryInfo.OTHER_ART) {
memItemStart = Debug.MemoryInfo.OTHER_DVK_STAT_ART_START;
memItemEnd = Debug.MemoryInfo.OTHER_DVK_STAT_ART_END;
} else {
continue; // No subitems, continue.
}
memItem.subitems = new ArrayList<MemItem>();
for (int j=memItemStart; j<=memItemEnd; j++) {
final String name = Debug.MemoryInfo.getOtherLabel(
Debug.MemoryInfo.NUM_OTHER_STATS + j);
memItem.subitems.add(new MemItem(name, name, dalvikSubitemPss[j],
dalvikSubitemSwapPss[j], j));
}
}
}
ArrayList<MemItem> oomMems = new ArrayList<MemItem>();
for (int j=0; j<oomPss.length; j++) {
if (oomPss[j] != 0) {
String label = isCompact ? DUMP_MEM_OOM_COMPACT_LABEL[j]
: DUMP_MEM_OOM_LABEL[j];
MemItem item = new MemItem(label, label, oomPss[j], oomSwapPss[j],
DUMP_MEM_OOM_ADJ[j]);
item.subitems = oomProcs[j];
oomMems.add(item);
}
}
dumpSwapPss = dumpSwapPss && hasSwapPss && totalSwapPss != 0;
if (!brief && !oomOnly && !isCompact) {
pw.println();
pw.println("Total PSS by process:");
dumpMemItems(pw, " ", "proc", procMems, true, isCompact, dumpSwapPss);
pw.println();
}
if (!isCompact) {
pw.println("Total PSS by OOM adjustment:");
}
dumpMemItems(pw, " ", "oom", oomMems, false, isCompact, dumpSwapPss);
if (!brief && !oomOnly) {
PrintWriter out = categoryPw != null ? categoryPw : pw;
if (!isCompact) {
out.println();
out.println("Total PSS by category:");
}
dumpMemItems(out, " ", "cat", catMems, true, isCompact, dumpSwapPss);
}
if (!isCompact) {
pw.println();
}
MemInfoReader memInfo = new MemInfoReader();
memInfo.readMemInfo();
if (nativeProcTotalPss > 0) {
synchronized (this) {
final long cachedKb = memInfo.getCachedSizeKb();
final long freeKb = memInfo.getFreeSizeKb();
final long zramKb = memInfo.getZramTotalSizeKb();
final long kernelKb = memInfo.getKernelUsedSizeKb();
EventLogTags.writeAmMeminfo(cachedKb*1024, freeKb*1024, zramKb*1024,
kernelKb*1024, nativeProcTotalPss*1024);
mProcessStats.addSysMemUsageLocked(cachedKb, freeKb, zramKb, kernelKb,
nativeProcTotalPss);
}
}
if (!brief) {
if (!isCompact) {
pw.print("Total RAM: "); pw.print(stringifyKBSize(memInfo.getTotalSizeKb()));
pw.print(" (status ");
switch (mLastMemoryLevel) {
case ProcessStats.ADJ_MEM_FACTOR_NORMAL:
pw.println("normal)");
break;
case ProcessStats.ADJ_MEM_FACTOR_MODERATE:
pw.println("moderate)");
break;
case ProcessStats.ADJ_MEM_FACTOR_LOW:
pw.println("low)");
break;
case ProcessStats.ADJ_MEM_FACTOR_CRITICAL:
pw.println("critical)");
break;
default:
pw.print(mLastMemoryLevel);
pw.println(")");
break;
}
pw.print(" Free RAM: ");
pw.print(stringifyKBSize(cachedPss + memInfo.getCachedSizeKb()
+ memInfo.getFreeSizeKb()));
pw.print(" (");
pw.print(stringifyKBSize(cachedPss));
pw.print(" cached pss + ");
pw.print(stringifyKBSize(memInfo.getCachedSizeKb()));
pw.print(" cached kernel + ");
pw.print(stringifyKBSize(memInfo.getFreeSizeKb()));
pw.println(" free)");
} else {
pw.print("ram,"); pw.print(memInfo.getTotalSizeKb()); pw.print(",");
pw.print(cachedPss + memInfo.getCachedSizeKb()
+ memInfo.getFreeSizeKb()); pw.print(",");
pw.println(totalPss - cachedPss);
}
}
long lostRAM = memInfo.getTotalSizeKb() - (totalPss - totalSwapPss)
- memInfo.getFreeSizeKb() - memInfo.getCachedSizeKb()
- memInfo.getKernelUsedSizeKb() - memInfo.getZramTotalSizeKb();
if (!isCompact) {
pw.print(" Used RAM: "); pw.print(stringifyKBSize(totalPss - cachedPss
+ memInfo.getKernelUsedSizeKb())); pw.print(" (");
pw.print(stringifyKBSize(totalPss - cachedPss)); pw.print(" used pss + ");
pw.print(stringifyKBSize(memInfo.getKernelUsedSizeKb())); pw.print(" kernel)\n");
pw.print(" Lost RAM: "); pw.println(stringifyKBSize(lostRAM));
} else {
pw.print("lostram,"); pw.println(lostRAM);
}
if (!brief) {
if (memInfo.getZramTotalSizeKb() != 0) {
if (!isCompact) {
pw.print(" ZRAM: ");
pw.print(stringifyKBSize(memInfo.getZramTotalSizeKb()));
pw.print(" physical used for ");
pw.print(stringifyKBSize(memInfo.getSwapTotalSizeKb()
- memInfo.getSwapFreeSizeKb()));
pw.print(" in swap (");
pw.print(stringifyKBSize(memInfo.getSwapTotalSizeKb()));
pw.println(" total swap)");
} else {
pw.print("zram,"); pw.print(memInfo.getZramTotalSizeKb()); pw.print(",");
pw.print(memInfo.getSwapTotalSizeKb()); pw.print(",");
pw.println(memInfo.getSwapFreeSizeKb());
}
}
final long[] ksm = getKsmInfo();
if (!isCompact) {
if (ksm[KSM_SHARING] != 0 || ksm[KSM_SHARED] != 0 || ksm[KSM_UNSHARED] != 0
|| ksm[KSM_VOLATILE] != 0) {
pw.print(" KSM: "); pw.print(stringifyKBSize(ksm[KSM_SHARING]));
pw.print(" saved from shared ");
pw.print(stringifyKBSize(ksm[KSM_SHARED]));
pw.print(" "); pw.print(stringifyKBSize(ksm[KSM_UNSHARED]));
pw.print(" unshared; ");
pw.print(stringifyKBSize(
ksm[KSM_VOLATILE])); pw.println(" volatile");
}
pw.print(" Tuning: ");
pw.print(ActivityManager.staticGetMemoryClass());
pw.print(" (large ");
pw.print(ActivityManager.staticGetLargeMemoryClass());
pw.print("), oom ");
pw.print(stringifySize(
mProcessList.getMemLevel(ProcessList.CACHED_APP_MAX_ADJ), 1024));
pw.print(", restore limit ");
pw.print(stringifyKBSize(mProcessList.getCachedRestoreThresholdKb()));
if (ActivityManager.isLowRamDeviceStatic()) {
pw.print(" (low-ram)");
}
if (ActivityManager.isHighEndGfx()) {
pw.print(" (high-end-gfx)");
}
pw.println();
} else {
pw.print("ksm,"); pw.print(ksm[KSM_SHARING]); pw.print(",");
pw.print(ksm[KSM_SHARED]); pw.print(","); pw.print(ksm[KSM_UNSHARED]);
pw.print(","); pw.println(ksm[KSM_VOLATILE]);
pw.print("tuning,");
pw.print(ActivityManager.staticGetMemoryClass());
pw.print(',');
pw.print(ActivityManager.staticGetLargeMemoryClass());
pw.print(',');
pw.print(mProcessList.getMemLevel(ProcessList.CACHED_APP_MAX_ADJ)/1024);
if (ActivityManager.isLowRamDeviceStatic()) {
pw.print(",low-ram");
}
if (ActivityManager.isHighEndGfx()) {
pw.print(",high-end-gfx");
}
pw.println();
}
}
}
}
private void appendBasicMemEntry(StringBuilder sb, int oomAdj, int procState, long pss,
long memtrack, String name) {
sb.append(" ");
sb.append(ProcessList.makeOomAdjString(oomAdj));
sb.append(' ');
sb.append(ProcessList.makeProcStateString(procState));
sb.append(' ');
ProcessList.appendRamKb(sb, pss);
sb.append(": ");
sb.append(name);
if (memtrack > 0) {
sb.append(" (");
sb.append(stringifyKBSize(memtrack));
sb.append(" memtrack)");
}
}
private void appendMemInfo(StringBuilder sb, ProcessMemInfo mi) {
appendBasicMemEntry(sb, mi.oomAdj, mi.procState, mi.pss, mi.memtrack, mi.name);
sb.append(" (pid ");
sb.append(mi.pid);
sb.append(") ");
sb.append(mi.adjType);
sb.append('\n');
if (mi.adjReason != null) {
sb.append(" ");
sb.append(mi.adjReason);
sb.append('\n');
}
}
void reportMemUsage(ArrayList<ProcessMemInfo> memInfos) {
final SparseArray<ProcessMemInfo> infoMap = new SparseArray<>(memInfos.size());
for (int i=0, N=memInfos.size(); i<N; i++) {
ProcessMemInfo mi = memInfos.get(i);
infoMap.put(mi.pid, mi);
}
updateCpuStatsNow();
long[] memtrackTmp = new long[1];
final List<ProcessCpuTracker.Stats> stats;
// Get a list of Stats that have vsize > 0
synchronized (mProcessCpuTracker) {
stats = mProcessCpuTracker.getStats((st) -> {
return st.vsize > 0;
});
}
final int statsCount = stats.size();
for (int i = 0; i < statsCount; i++) {
ProcessCpuTracker.Stats st = stats.get(i);
long pss = Debug.getPss(st.pid, null, memtrackTmp);
if (pss > 0) {
if (infoMap.indexOfKey(st.pid) < 0) {
ProcessMemInfo mi = new ProcessMemInfo(st.name, st.pid,
ProcessList.NATIVE_ADJ, -1, "native", null);
mi.pss = pss;
mi.memtrack = memtrackTmp[0];
memInfos.add(mi);
}
}
}
long totalPss = 0;
long totalMemtrack = 0;
for (int i=0, N=memInfos.size(); i<N; i++) {
ProcessMemInfo mi = memInfos.get(i);
if (mi.pss == 0) {
mi.pss = Debug.getPss(mi.pid, null, memtrackTmp);
mi.memtrack = memtrackTmp[0];
}
totalPss += mi.pss;
totalMemtrack += mi.memtrack;
}
Collections.sort(memInfos, new Comparator<ProcessMemInfo>() {
@Override public int compare(ProcessMemInfo lhs, ProcessMemInfo rhs) {
if (lhs.oomAdj != rhs.oomAdj) {
return lhs.oomAdj < rhs.oomAdj ? -1 : 1;
}
if (lhs.pss != rhs.pss) {
return lhs.pss < rhs.pss ? 1 : -1;
}
return 0;
}
});
StringBuilder tag = new StringBuilder(128);
StringBuilder stack = new StringBuilder(128);
tag.append("Low on memory -- ");
appendMemBucket(tag, totalPss, "total", false);
appendMemBucket(stack, totalPss, "total", true);
StringBuilder fullNativeBuilder = new StringBuilder(1024);
StringBuilder shortNativeBuilder = new StringBuilder(1024);
StringBuilder fullJavaBuilder = new StringBuilder(1024);
boolean firstLine = true;
int lastOomAdj = Integer.MIN_VALUE;
long extraNativeRam = 0;
long extraNativeMemtrack = 0;
long cachedPss = 0;
for (int i=0, N=memInfos.size(); i<N; i++) {
ProcessMemInfo mi = memInfos.get(i);
if (mi.oomAdj >= ProcessList.CACHED_APP_MIN_ADJ) {
cachedPss += mi.pss;
}
if (mi.oomAdj != ProcessList.NATIVE_ADJ
&& (mi.oomAdj < ProcessList.SERVICE_ADJ
|| mi.oomAdj == ProcessList.HOME_APP_ADJ
|| mi.oomAdj == ProcessList.PREVIOUS_APP_ADJ)) {
if (lastOomAdj != mi.oomAdj) {
lastOomAdj = mi.oomAdj;
if (mi.oomAdj <= ProcessList.FOREGROUND_APP_ADJ) {
tag.append(" / ");
}
if (mi.oomAdj >= ProcessList.FOREGROUND_APP_ADJ) {
if (firstLine) {
stack.append(":");
firstLine = false;
}
stack.append("\n\t at ");
} else {
stack.append("$");
}
} else {
tag.append(" ");
stack.append("$");
}
if (mi.oomAdj <= ProcessList.FOREGROUND_APP_ADJ) {
appendMemBucket(tag, mi.pss, mi.name, false);
}
appendMemBucket(stack, mi.pss, mi.name, true);
if (mi.oomAdj >= ProcessList.FOREGROUND_APP_ADJ
&& ((i+1) >= N || memInfos.get(i+1).oomAdj != lastOomAdj)) {
stack.append("(");
for (int k=0; k<DUMP_MEM_OOM_ADJ.length; k++) {
if (DUMP_MEM_OOM_ADJ[k] == mi.oomAdj) {
stack.append(DUMP_MEM_OOM_LABEL[k]);
stack.append(":");
stack.append(DUMP_MEM_OOM_ADJ[k]);
}
}
stack.append(")");
}
}
appendMemInfo(fullNativeBuilder, mi);
if (mi.oomAdj == ProcessList.NATIVE_ADJ) {
// The short form only has native processes that are >= 512K.
if (mi.pss >= 512) {
appendMemInfo(shortNativeBuilder, mi);
} else {
extraNativeRam += mi.pss;
extraNativeMemtrack += mi.memtrack;
}
} else {
// Short form has all other details, but if we have collected RAM
// from smaller native processes let's dump a summary of that.
if (extraNativeRam > 0) {
appendBasicMemEntry(shortNativeBuilder, ProcessList.NATIVE_ADJ,
-1, extraNativeRam, extraNativeMemtrack, "(Other native)");
shortNativeBuilder.append('\n');
extraNativeRam = 0;
}
appendMemInfo(fullJavaBuilder, mi);
}
}
fullJavaBuilder.append(" ");
ProcessList.appendRamKb(fullJavaBuilder, totalPss);
fullJavaBuilder.append(": TOTAL");
if (totalMemtrack > 0) {
fullJavaBuilder.append(" (");
fullJavaBuilder.append(stringifyKBSize(totalMemtrack));
fullJavaBuilder.append(" memtrack)");
} else {
}
fullJavaBuilder.append("\n");
MemInfoReader memInfo = new MemInfoReader();
memInfo.readMemInfo();
final long[] infos = memInfo.getRawInfo();
StringBuilder memInfoBuilder = new StringBuilder(1024);
Debug.getMemInfo(infos);
memInfoBuilder.append(" MemInfo: ");
memInfoBuilder.append(stringifyKBSize(infos[Debug.MEMINFO_SLAB])).append(" slab, ");
memInfoBuilder.append(stringifyKBSize(infos[Debug.MEMINFO_SHMEM])).append(" shmem, ");
memInfoBuilder.append(stringifyKBSize(
infos[Debug.MEMINFO_VM_ALLOC_USED])).append(" vm alloc, ");
memInfoBuilder.append(stringifyKBSize(
infos[Debug.MEMINFO_PAGE_TABLES])).append(" page tables ");
memInfoBuilder.append(stringifyKBSize(
infos[Debug.MEMINFO_KERNEL_STACK])).append(" kernel stack\n");
memInfoBuilder.append(" ");
memInfoBuilder.append(stringifyKBSize(infos[Debug.MEMINFO_BUFFERS])).append(" buffers, ");
memInfoBuilder.append(stringifyKBSize(infos[Debug.MEMINFO_CACHED])).append(" cached, ");
memInfoBuilder.append(stringifyKBSize(infos[Debug.MEMINFO_MAPPED])).append(" mapped, ");
memInfoBuilder.append(stringifyKBSize(infos[Debug.MEMINFO_FREE])).append(" free\n");
if (infos[Debug.MEMINFO_ZRAM_TOTAL] != 0) {
memInfoBuilder.append(" ZRAM: ");
memInfoBuilder.append(stringifyKBSize(infos[Debug.MEMINFO_ZRAM_TOTAL]));
memInfoBuilder.append(" RAM, ");
memInfoBuilder.append(stringifyKBSize(infos[Debug.MEMINFO_SWAP_TOTAL]));
memInfoBuilder.append(" swap total, ");
memInfoBuilder.append(stringifyKBSize(infos[Debug.MEMINFO_SWAP_FREE]));
memInfoBuilder.append(" swap free\n");
}
final long[] ksm = getKsmInfo();
if (ksm[KSM_SHARING] != 0 || ksm[KSM_SHARED] != 0 || ksm[KSM_UNSHARED] != 0
|| ksm[KSM_VOLATILE] != 0) {
memInfoBuilder.append(" KSM: ");
memInfoBuilder.append(stringifyKBSize(ksm[KSM_SHARING]));
memInfoBuilder.append(" saved from shared ");
memInfoBuilder.append(stringifyKBSize(ksm[KSM_SHARED]));
memInfoBuilder.append("\n ");
memInfoBuilder.append(stringifyKBSize(ksm[KSM_UNSHARED]));
memInfoBuilder.append(" unshared; ");
memInfoBuilder.append(stringifyKBSize(ksm[KSM_VOLATILE]));
memInfoBuilder.append(" volatile\n");
}
memInfoBuilder.append(" Free RAM: ");
memInfoBuilder.append(stringifyKBSize(cachedPss + memInfo.getCachedSizeKb()
+ memInfo.getFreeSizeKb()));
memInfoBuilder.append("\n");
memInfoBuilder.append(" Used RAM: ");
memInfoBuilder.append(stringifyKBSize(
totalPss - cachedPss + memInfo.getKernelUsedSizeKb()));
memInfoBuilder.append("\n");
memInfoBuilder.append(" Lost RAM: ");
memInfoBuilder.append(stringifyKBSize(memInfo.getTotalSizeKb()
- totalPss - memInfo.getFreeSizeKb() - memInfo.getCachedSizeKb()
- memInfo.getKernelUsedSizeKb() - memInfo.getZramTotalSizeKb()));
memInfoBuilder.append("\n");
Slog.i(TAG, "Low on memory:");
Slog.i(TAG, shortNativeBuilder.toString());
Slog.i(TAG, fullJavaBuilder.toString());
Slog.i(TAG, memInfoBuilder.toString());
StringBuilder dropBuilder = new StringBuilder(1024);
/*
StringWriter oomSw = new StringWriter();
PrintWriter oomPw = new FastPrintWriter(oomSw, false, 256);
StringWriter catSw = new StringWriter();
PrintWriter catPw = new FastPrintWriter(catSw, false, 256);
String[] emptyArgs = new String[] { };
dumpApplicationMemoryUsage(null, oomPw, " ", emptyArgs, true, catPw);
oomPw.flush();
String oomString = oomSw.toString();
*/
dropBuilder.append("Low on memory:");
dropBuilder.append(stack);
dropBuilder.append('\n');
dropBuilder.append(fullNativeBuilder);
dropBuilder.append(fullJavaBuilder);
dropBuilder.append('\n');
dropBuilder.append(memInfoBuilder);
dropBuilder.append('\n');
/*
dropBuilder.append(oomString);
dropBuilder.append('\n');
*/
StringWriter catSw = new StringWriter();
synchronized (ActivityManagerService.this) {
PrintWriter catPw = new FastPrintWriter(catSw, false, 256);
String[] emptyArgs = new String[] { };
catPw.println();
dumpProcessesLocked(null, catPw, emptyArgs, 0, false, null);
catPw.println();
mServices.newServiceDumperLocked(null, catPw, emptyArgs, 0,
false, null).dumpLocked();
catPw.println();
dumpActivitiesLocked(null, catPw, emptyArgs, 0, false, false, null);
catPw.flush();
}
dropBuilder.append(catSw.toString());
addErrorToDropBox("lowmem", null, "system_server", null,
null, tag.toString(), dropBuilder.toString(), null, null);
//Slog.i(TAG, "Sent to dropbox:");
//Slog.i(TAG, dropBuilder.toString());
synchronized (ActivityManagerService.this) {
long now = SystemClock.uptimeMillis();
if (mLastMemUsageReportTime < now) {
mLastMemUsageReportTime = now;
}
}
}
/**
* Searches array of arguments for the specified string
* @param args array of argument strings
* @param value value to search for
* @return true if the value is contained in the array
*/
private static boolean scanArgs(String[] args, String value) {
if (args != null) {
for (String arg : args) {
if (value.equals(arg)) {
return true;
}
}
}
return false;
}
private final boolean removeDyingProviderLocked(ProcessRecord proc,
ContentProviderRecord cpr, boolean always) {
final boolean inLaunching = mLaunchingProviders.contains(cpr);
if (!inLaunching || always) {
synchronized (cpr) {
cpr.launchingApp = null;
cpr.notifyAll();
}
mProviderMap.removeProviderByClass(cpr.name, UserHandle.getUserId(cpr.uid));
String names[] = cpr.info.authority.split(";");
for (int j = 0; j < names.length; j++) {
mProviderMap.removeProviderByName(names[j], UserHandle.getUserId(cpr.uid));
}
}
for (int i = cpr.connections.size() - 1; i >= 0; i--) {
ContentProviderConnection conn = cpr.connections.get(i);
if (conn.waiting) {
// If this connection is waiting for the provider, then we don't
// need to mess with its process unless we are always removing
// or for some reason the provider is not currently launching.
if (inLaunching && !always) {
continue;
}
}
ProcessRecord capp = conn.client;
conn.dead = true;
if (conn.stableCount > 0) {
if (!capp.persistent && capp.thread != null
&& capp.pid != 0
&& capp.pid != MY_PID) {
capp.kill("depends on provider "
+ cpr.name.flattenToShortString()
+ " in dying proc " + (proc != null ? proc.processName : "??")
+ " (adj " + (proc != null ? proc.setAdj : "??") + ")", true);
}
} else if (capp.thread != null && conn.provider.provider != null) {
try {
capp.thread.unstableProviderDied(conn.provider.provider.asBinder());
} catch (RemoteException e) {
}
// In the protocol here, we don't expect the client to correctly
// clean up this connection, we'll just remove it.
cpr.connections.remove(i);
if (conn.client.conProviders.remove(conn)) {
stopAssociationLocked(capp.uid, capp.processName, cpr.uid, cpr.name);
}
}
}
if (inLaunching && always) {
mLaunchingProviders.remove(cpr);
}
return inLaunching;
}
/**
* Main code for cleaning up a process when it has gone away. This is
* called both as a result of the process dying, or directly when stopping
* a process when running in single process mode.
*
* @return Returns true if the given process has been restarted, so the
* app that was passed in must remain on the process lists.
*/
private final boolean cleanUpApplicationRecordLocked(ProcessRecord app,
boolean restarting, boolean allowRestart, int index, boolean replacingPid) {
if (index >= 0) {
removeLruProcessLocked(app);
ProcessList.remove(app.pid);
}
mProcessesToGc.remove(app);
mPendingPssProcesses.remove(app);
// Dismiss any open dialogs.
if (app.crashDialog != null && !app.forceCrashReport) {
app.crashDialog.dismiss();
app.crashDialog = null;
}
if (app.anrDialog != null) {
app.anrDialog.dismiss();
app.anrDialog = null;
}
if (app.waitDialog != null) {
app.waitDialog.dismiss();
app.waitDialog = null;
}
app.crashing = false;
app.notResponding = false;
app.resetPackageList(mProcessStats);
app.unlinkDeathRecipient();
app.makeInactive(mProcessStats);
app.waitingToKill = null;
app.forcingToImportant = null;
updateProcessForegroundLocked(app, false, false);
app.foregroundActivities = false;
app.hasShownUi = false;
app.treatLikeActivity = false;
app.hasAboveClient = false;
app.hasClientActivities = false;
mServices.killServicesLocked(app, allowRestart);
boolean restart = false;
// Remove published content providers.
for (int i = app.pubProviders.size() - 1; i >= 0; i--) {
ContentProviderRecord cpr = app.pubProviders.valueAt(i);
final boolean always = app.bad || !allowRestart;
boolean inLaunching = removeDyingProviderLocked(app, cpr, always);
if ((inLaunching || always) && cpr.hasConnectionOrHandle()) {
// We left the provider in the launching list, need to
// restart it.
restart = true;
}
cpr.provider = null;
cpr.proc = null;
}
app.pubProviders.clear();
// Take care of any launching providers waiting for this process.
if (cleanupAppInLaunchingProvidersLocked(app, false)) {
restart = true;
}
// Unregister from connected content providers.
if (!app.conProviders.isEmpty()) {
for (int i = app.conProviders.size() - 1; i >= 0; i--) {
ContentProviderConnection conn = app.conProviders.get(i);
conn.provider.connections.remove(conn);
stopAssociationLocked(app.uid, app.processName, conn.provider.uid,
conn.provider.name);
}
app.conProviders.clear();
}
// At this point there may be remaining entries in mLaunchingProviders
// where we were the only one waiting, so they are no longer of use.
// Look for these and clean up if found.
// XXX Commented out for now. Trying to figure out a way to reproduce
// the actual situation to identify what is actually going on.
if (false) {
for (int i = mLaunchingProviders.size() - 1; i >= 0; i--) {
ContentProviderRecord cpr = mLaunchingProviders.get(i);
if (cpr.connections.size() <= 0 && !cpr.hasExternalProcessHandles()) {
synchronized (cpr) {
cpr.launchingApp = null;
cpr.notifyAll();
}
}
}
}
skipCurrentReceiverLocked(app);
// Unregister any receivers.
for (int i = app.receivers.size() - 1; i >= 0; i--) {
removeReceiverLocked(app.receivers.valueAt(i));
}
app.receivers.clear();
// If the app is undergoing backup, tell the backup manager about it
if (mBackupTarget != null && app.pid == mBackupTarget.app.pid) {
if (DEBUG_BACKUP || DEBUG_CLEANUP) Slog.d(TAG_CLEANUP, "App "
+ mBackupTarget.appInfo + " died during backup");
mHandler.post(new Runnable() {
@Override
public void run(){
try {
IBackupManager bm = IBackupManager.Stub.asInterface(
ServiceManager.getService(Context.BACKUP_SERVICE));
bm.agentDisconnected(app.info.packageName);
} catch (RemoteException e) {
// can't happen; backup manager is local
}
}
});
}
for (int i = mPendingProcessChanges.size() - 1; i >= 0; i--) {
ProcessChangeItem item = mPendingProcessChanges.get(i);
if (item.pid == app.pid) {
mPendingProcessChanges.remove(i);
mAvailProcessChanges.add(item);
}
}
mUiHandler.obtainMessage(DISPATCH_PROCESS_DIED_UI_MSG, app.pid, app.info.uid,
null).sendToTarget();
// If the caller is restarting this app, then leave it in its
// current lists and let the caller take care of it.
if (restarting) {
return false;
}
if (!app.persistent || app.isolated) {
if (DEBUG_PROCESSES || DEBUG_CLEANUP) Slog.v(TAG_CLEANUP,
"Removing non-persistent process during cleanup: " + app);
if (!replacingPid) {
removeProcessNameLocked(app.processName, app.uid, app);
}
if (mHeavyWeightProcess == app) {
mHandler.sendMessage(mHandler.obtainMessage(CANCEL_HEAVY_NOTIFICATION_MSG,
mHeavyWeightProcess.userId, 0));
mHeavyWeightProcess = null;
}
} else if (!app.removed) {
// This app is persistent, so we need to keep its record around.
// If it is not already on the pending app list, add it there
// and start a new process for it.
if (mPersistentStartingProcesses.indexOf(app) < 0) {
mPersistentStartingProcesses.add(app);
restart = true;
}
}
if ((DEBUG_PROCESSES || DEBUG_CLEANUP) && mProcessesOnHold.contains(app)) Slog.v(
TAG_CLEANUP, "Clean-up removing on hold: " + app);
mProcessesOnHold.remove(app);
if (app == mHomeProcess) {
mHomeProcess = null;
}
if (app == mPreviousProcess) {
mPreviousProcess = null;
}
if (restart && !app.isolated) {
// We have components that still need to be running in the
// process, so re-launch it.
if (index < 0) {
ProcessList.remove(app.pid);
}
addProcessNameLocked(app);
startProcessLocked(app, "restart", app.processName);
return true;
} else if (app.pid > 0 && app.pid != MY_PID) {
// Goodbye!
boolean removed;
synchronized (mPidsSelfLocked) {
mPidsSelfLocked.remove(app.pid);
mHandler.removeMessages(PROC_START_TIMEOUT_MSG, app);
}
mBatteryStatsService.noteProcessFinish(app.processName, app.info.uid);
if (app.isolated) {
mBatteryStatsService.removeIsolatedUid(app.uid, app.info.uid);
}
app.setPid(0);
}
return false;
}
boolean checkAppInLaunchingProvidersLocked(ProcessRecord app) {
for (int i = mLaunchingProviders.size() - 1; i >= 0; i--) {
ContentProviderRecord cpr = mLaunchingProviders.get(i);
if (cpr.launchingApp == app) {
return true;
}
}
return false;
}
boolean cleanupAppInLaunchingProvidersLocked(ProcessRecord app, boolean alwaysBad) {
// Look through the content providers we are waiting to have launched,
// and if any run in this process then either schedule a restart of
// the process or kill the client waiting for it if this process has
// gone bad.
boolean restart = false;
for (int i = mLaunchingProviders.size() - 1; i >= 0; i--) {
ContentProviderRecord cpr = mLaunchingProviders.get(i);
if (cpr.launchingApp == app) {
if (!alwaysBad && !app.bad && cpr.hasConnectionOrHandle()) {
restart = true;
} else {
removeDyingProviderLocked(app, cpr, true);
}
}
}
return restart;
}
// =========================================================
// SERVICES
// =========================================================
@Override
public List<ActivityManager.RunningServiceInfo> getServices(int maxNum, int flags) {
enforceNotIsolatedCaller("getServices");
final int callingUid = Binder.getCallingUid();
final boolean canInteractAcrossUsers = (ActivityManager.checkUidPermission(
INTERACT_ACROSS_USERS_FULL, callingUid) == PERMISSION_GRANTED);
final boolean allowed = isGetTasksAllowed("getServices", Binder.getCallingPid(),
callingUid);
synchronized (this) {
return mServices.getRunningServiceInfoLocked(maxNum, flags, callingUid,
allowed, canInteractAcrossUsers);
}
}
@Override
public PendingIntent getRunningServiceControlPanel(ComponentName name) {
enforceNotIsolatedCaller("getRunningServiceControlPanel");
synchronized (this) {
return mServices.getRunningServiceControlPanelLocked(name);
}
}
@Override
public ComponentName startService(IApplicationThread caller, Intent service,
String resolvedType, boolean requireForeground, String callingPackage, int userId)
throws TransactionTooLargeException {
enforceNotIsolatedCaller("startService");
// Refuse possible leaked file descriptors
if (service != null && service.hasFileDescriptors() == true) {
throw new IllegalArgumentException("File descriptors passed in Intent");
}
if (callingPackage == null) {
throw new IllegalArgumentException("callingPackage cannot be null");
}
if (DEBUG_SERVICE) Slog.v(TAG_SERVICE,
"*** startService: " + service + " type=" + resolvedType + " fg=" + requireForeground);
synchronized(this) {
final int callingPid = Binder.getCallingPid();
final int callingUid = Binder.getCallingUid();
final long origId = Binder.clearCallingIdentity();
ComponentName res;
try {
res = mServices.startServiceLocked(caller, service,
resolvedType, callingPid, callingUid,
requireForeground, callingPackage, userId);
} finally {
Binder.restoreCallingIdentity(origId);
}
return res;
}
}
ComponentName startServiceInPackage(int uid, Intent service, String resolvedType,
boolean fgRequired, String callingPackage, int userId)
throws TransactionTooLargeException {
synchronized(this) {
if (DEBUG_SERVICE) Slog.v(TAG_SERVICE,
"startServiceInPackage: " + service + " type=" + resolvedType);
final long origId = Binder.clearCallingIdentity();
ComponentName res;
try {
res = mServices.startServiceLocked(null, service,
resolvedType, -1, uid, fgRequired, callingPackage, userId);
} finally {
Binder.restoreCallingIdentity(origId);
}
return res;
}
}
@Override
public int stopService(IApplicationThread caller, Intent service,
String resolvedType, int userId) {
enforceNotIsolatedCaller("stopService");
// Refuse possible leaked file descriptors
if (service != null && service.hasFileDescriptors() == true) {
throw new IllegalArgumentException("File descriptors passed in Intent");
}
synchronized(this) {
return mServices.stopServiceLocked(caller, service, resolvedType, userId);
}
}
@Override
public IBinder peekService(Intent service, String resolvedType, String callingPackage) {
enforceNotIsolatedCaller("peekService");
// Refuse possible leaked file descriptors
if (service != null && service.hasFileDescriptors() == true) {
throw new IllegalArgumentException("File descriptors passed in Intent");
}
if (callingPackage == null) {
throw new IllegalArgumentException("callingPackage cannot be null");
}
synchronized(this) {
return mServices.peekServiceLocked(service, resolvedType, callingPackage);
}
}
@Override
public boolean stopServiceToken(ComponentName className, IBinder token,
int startId) {
synchronized(this) {
return mServices.stopServiceTokenLocked(className, token, startId);
}
}
@Override
public void setServiceForeground(ComponentName className, IBinder token,
int id, Notification notification, int flags) {
synchronized(this) {
mServices.setServiceForegroundLocked(className, token, id, notification, flags);
}
}
@Override
public int handleIncomingUser(int callingPid, int callingUid, int userId, boolean allowAll,
boolean requireFull, String name, String callerPackage) {
return mUserController.handleIncomingUser(callingPid, callingUid, userId, allowAll,
requireFull ? ALLOW_FULL_ONLY : ALLOW_NON_FULL, name, callerPackage);
}
boolean isSingleton(String componentProcessName, ApplicationInfo aInfo,
String className, int flags) {
boolean result = false;
// For apps that don't have pre-defined UIDs, check for permission
if (UserHandle.getAppId(aInfo.uid) >= FIRST_APPLICATION_UID) {
if ((flags & ServiceInfo.FLAG_SINGLE_USER) != 0) {
if (ActivityManager.checkUidPermission(
INTERACT_ACROSS_USERS,
aInfo.uid) != PackageManager.PERMISSION_GRANTED) {
ComponentName comp = new ComponentName(aInfo.packageName, className);
String msg = "Permission Denial: Component " + comp.flattenToShortString()
+ " requests FLAG_SINGLE_USER, but app does not hold "
+ INTERACT_ACROSS_USERS;
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
// Permission passed
result = true;
}
} else if ("system".equals(componentProcessName)) {
result = true;
} else if ((flags & ServiceInfo.FLAG_SINGLE_USER) != 0) {
// Phone app and persistent apps are allowed to export singleuser providers.
result = UserHandle.isSameApp(aInfo.uid, PHONE_UID)
|| (aInfo.flags & ApplicationInfo.FLAG_PERSISTENT) != 0;
}
if (DEBUG_MU) Slog.v(TAG_MU,
"isSingleton(" + componentProcessName + ", " + aInfo + ", " + className + ", 0x"
+ Integer.toHexString(flags) + ") = " + result);
return result;
}
/**
* Checks to see if the caller is in the same app as the singleton
* component, or the component is in a special app. It allows special apps
* to export singleton components but prevents exporting singleton
* components for regular apps.
*/
boolean isValidSingletonCall(int callingUid, int componentUid) {
int componentAppId = UserHandle.getAppId(componentUid);
return UserHandle.isSameApp(callingUid, componentUid)
|| componentAppId == SYSTEM_UID
|| componentAppId == PHONE_UID
|| ActivityManager.checkUidPermission(INTERACT_ACROSS_USERS_FULL, componentUid)
== PackageManager.PERMISSION_GRANTED;
}
public int bindService(IApplicationThread caller, IBinder token, Intent service,
String resolvedType, IServiceConnection connection, int flags, String callingPackage,
int userId) throws TransactionTooLargeException {
enforceNotIsolatedCaller("bindService");
// Refuse possible leaked file descriptors
if (service != null && service.hasFileDescriptors() == true) {
throw new IllegalArgumentException("File descriptors passed in Intent");
}
if (callingPackage == null) {
throw new IllegalArgumentException("callingPackage cannot be null");
}
synchronized(this) {
return mServices.bindServiceLocked(caller, token, service,
resolvedType, connection, flags, callingPackage, userId);
}
}
public boolean unbindService(IServiceConnection connection) {
synchronized (this) {
return mServices.unbindServiceLocked(connection);
}
}
public void publishService(IBinder token, Intent intent, IBinder service) {
// Refuse possible leaked file descriptors
if (intent != null && intent.hasFileDescriptors() == true) {
throw new IllegalArgumentException("File descriptors passed in Intent");
}
synchronized(this) {
if (!(token instanceof ServiceRecord)) {
throw new IllegalArgumentException("Invalid service token");
}
mServices.publishServiceLocked((ServiceRecord)token, intent, service);
}
}
public void unbindFinished(IBinder token, Intent intent, boolean doRebind) {
// Refuse possible leaked file descriptors
if (intent != null && intent.hasFileDescriptors() == true) {
throw new IllegalArgumentException("File descriptors passed in Intent");
}
synchronized(this) {
mServices.unbindFinishedLocked((ServiceRecord)token, intent, doRebind);
}
}
public void serviceDoneExecuting(IBinder token, int type, int startId, int res) {
synchronized(this) {
if (!(token instanceof ServiceRecord)) {
Slog.e(TAG, "serviceDoneExecuting: Invalid service token=" + token);
throw new IllegalArgumentException("Invalid service token");
}
mServices.serviceDoneExecutingLocked((ServiceRecord)token, type, startId, res);
}
}
// =========================================================
// BACKUP AND RESTORE
// =========================================================
// Cause the target app to be launched if necessary and its backup agent
// instantiated. The backup agent will invoke backupAgentCreated() on the
// activity manager to announce its creation.
public boolean bindBackupAgent(String packageName, int backupMode, int userId) {
if (DEBUG_BACKUP) Slog.v(TAG, "bindBackupAgent: app=" + packageName + " mode=" + backupMode);
enforceCallingPermission("android.permission.CONFIRM_FULL_BACKUP", "bindBackupAgent");
IPackageManager pm = AppGlobals.getPackageManager();
ApplicationInfo app = null;
try {
app = pm.getApplicationInfo(packageName, 0, userId);
} catch (RemoteException e) {
// can't happen; package manager is process-local
}
if (app == null) {
Slog.w(TAG, "Unable to bind backup agent for " + packageName);
return false;
}
int oldBackupUid;
int newBackupUid;
synchronized(this) {
// !!! TODO: currently no check here that we're already bound
BatteryStatsImpl.Uid.Pkg.Serv ss = null;
BatteryStatsImpl stats = mBatteryStatsService.getActiveStatistics();
synchronized (stats) {
ss = stats.getServiceStatsLocked(app.uid, app.packageName, app.name);
}
// Backup agent is now in use, its package can't be stopped.
try {
AppGlobals.getPackageManager().setPackageStoppedState(
app.packageName, false, UserHandle.getUserId(app.uid));
} catch (RemoteException e) {
} catch (IllegalArgumentException e) {
Slog.w(TAG, "Failed trying to unstop package "
+ app.packageName + ": " + e);
}
BackupRecord r = new BackupRecord(ss, app, backupMode);
ComponentName hostingName =
(backupMode == ApplicationThreadConstants.BACKUP_MODE_INCREMENTAL)
? new ComponentName(app.packageName, app.backupAgentName)
: new ComponentName("android", "FullBackupAgent");
// startProcessLocked() returns existing proc's record if it's already running
ProcessRecord proc = startProcessLocked(app.processName, app,
false, 0, "backup", hostingName, false, false, false);
if (proc == null) {
Slog.e(TAG, "Unable to start backup agent process " + r);
return false;
}
// If the app is a regular app (uid >= 10000) and not the system server or phone
// process, etc, then mark it as being in full backup so that certain calls to the
// process can be blocked. This is not reset to false anywhere because we kill the
// process after the full backup is done and the ProcessRecord will vaporize anyway.
if (UserHandle.isApp(app.uid) &&
backupMode == ApplicationThreadConstants.BACKUP_MODE_FULL) {
proc.inFullBackup = true;
}
r.app = proc;
oldBackupUid = mBackupTarget != null ? mBackupTarget.appInfo.uid : -1;
newBackupUid = proc.inFullBackup ? r.appInfo.uid : -1;
mBackupTarget = r;
mBackupAppName = app.packageName;
// Try not to kill the process during backup
updateOomAdjLocked(proc, true);
// If the process is already attached, schedule the creation of the backup agent now.
// If it is not yet live, this will be done when it attaches to the framework.
if (proc.thread != null) {
if (DEBUG_BACKUP) Slog.v(TAG_BACKUP, "Agent proc already running: " + proc);
try {
proc.thread.scheduleCreateBackupAgent(app,
compatibilityInfoForPackageLocked(app), backupMode);
} catch (RemoteException e) {
// Will time out on the backup manager side
}
} else {
if (DEBUG_BACKUP) Slog.v(TAG_BACKUP, "Agent proc not running, waiting for attach");
}
// Invariants: at this point, the target app process exists and the application
// is either already running or in the process of coming up. mBackupTarget and
// mBackupAppName describe the app, so that when it binds back to the AM we
// know that it's scheduled for a backup-agent operation.
}
JobSchedulerInternal js = LocalServices.getService(JobSchedulerInternal.class);
if (oldBackupUid != -1) {
js.removeBackingUpUid(oldBackupUid);
}
if (newBackupUid != -1) {
js.addBackingUpUid(newBackupUid);
}
return true;
}
@Override
public void clearPendingBackup() {
if (DEBUG_BACKUP) Slog.v(TAG_BACKUP, "clearPendingBackup");
enforceCallingPermission("android.permission.BACKUP", "clearPendingBackup");
synchronized (this) {
mBackupTarget = null;
mBackupAppName = null;
}
JobSchedulerInternal js = LocalServices.getService(JobSchedulerInternal.class);
js.clearAllBackingUpUids();
}
// A backup agent has just come up
public void backupAgentCreated(String agentPackageName, IBinder agent) {
if (DEBUG_BACKUP) Slog.v(TAG_BACKUP, "backupAgentCreated: " + agentPackageName
+ " = " + agent);
synchronized(this) {
if (!agentPackageName.equals(mBackupAppName)) {
Slog.e(TAG, "Backup agent created for " + agentPackageName + " but not requested!");
return;
}
}
long oldIdent = Binder.clearCallingIdentity();
try {
IBackupManager bm = IBackupManager.Stub.asInterface(
ServiceManager.getService(Context.BACKUP_SERVICE));
bm.agentConnected(agentPackageName, agent);
} catch (RemoteException e) {
// can't happen; the backup manager service is local
} catch (Exception e) {
Slog.w(TAG, "Exception trying to deliver BackupAgent binding: ");
e.printStackTrace();
} finally {
Binder.restoreCallingIdentity(oldIdent);
}
}
// done with this agent
public void unbindBackupAgent(ApplicationInfo appInfo) {
if (DEBUG_BACKUP) Slog.v(TAG_BACKUP, "unbindBackupAgent: " + appInfo);
if (appInfo == null) {
Slog.w(TAG, "unbind backup agent for null app");
return;
}
int oldBackupUid;
synchronized(this) {
try {
if (mBackupAppName == null) {
Slog.w(TAG, "Unbinding backup agent with no active backup");
return;
}
if (!mBackupAppName.equals(appInfo.packageName)) {
Slog.e(TAG, "Unbind of " + appInfo + " but is not the current backup target");
return;
}
// Not backing this app up any more; reset its OOM adjustment
final ProcessRecord proc = mBackupTarget.app;
updateOomAdjLocked(proc, true);
proc.inFullBackup = false;
oldBackupUid = mBackupTarget != null ? mBackupTarget.appInfo.uid : -1;
// If the app crashed during backup, 'thread' will be null here
if (proc.thread != null) {
try {
proc.thread.scheduleDestroyBackupAgent(appInfo,
compatibilityInfoForPackageLocked(appInfo));
} catch (Exception e) {
Slog.e(TAG, "Exception when unbinding backup agent:");
e.printStackTrace();
}
}
} finally {
mBackupTarget = null;
mBackupAppName = null;
}
}
if (oldBackupUid != -1) {
JobSchedulerInternal js = LocalServices.getService(JobSchedulerInternal.class);
js.removeBackingUpUid(oldBackupUid);
}
}
// =========================================================
// BROADCASTS
// =========================================================
private boolean isInstantApp(ProcessRecord record, String callerPackage, int uid) {
if (UserHandle.getAppId(uid) < FIRST_APPLICATION_UID) {
return false;
}
// Easy case -- we have the app's ProcessRecord.
if (record != null) {
return record.info.isInstantApp();
}
// Otherwise check with PackageManager.
if (callerPackage == null) {
Slog.e(TAG, "isInstantApp with an application's uid, no record, and no package name");
throw new IllegalArgumentException("Calling application did not provide package name");
}
mAppOpsService.checkPackage(uid, callerPackage);
try {
IPackageManager pm = AppGlobals.getPackageManager();
return pm.isInstantApp(callerPackage, UserHandle.getUserId(uid));
} catch (RemoteException e) {
Slog.e(TAG, "Error looking up if " + callerPackage + " is an instant app.", e);
return true;
}
}
boolean isPendingBroadcastProcessLocked(int pid) {
return mFgBroadcastQueue.isPendingBroadcastProcessLocked(pid)
|| mBgBroadcastQueue.isPendingBroadcastProcessLocked(pid);
}
void skipPendingBroadcastLocked(int pid) {
Slog.w(TAG, "Unattached app died before broadcast acknowledged, skipping");
for (BroadcastQueue queue : mBroadcastQueues) {
queue.skipPendingBroadcastLocked(pid);
}
}
// The app just attached; send any pending broadcasts that it should receive
boolean sendPendingBroadcastsLocked(ProcessRecord app) {
boolean didSomething = false;
for (BroadcastQueue queue : mBroadcastQueues) {
didSomething |= queue.sendPendingBroadcastsLocked(app);
}
return didSomething;
}
public Intent registerReceiver(IApplicationThread caller, String callerPackage,
IIntentReceiver receiver, IntentFilter filter, String permission, int userId,
int flags) {
enforceNotIsolatedCaller("registerReceiver");
ArrayList<Intent> stickyIntents = null;
ProcessRecord callerApp = null;
final boolean visibleToInstantApps
= (flags & Context.RECEIVER_VISIBLE_TO_INSTANT_APPS) != 0;
int callingUid;
int callingPid;
boolean instantApp;
synchronized(this) {
if (caller != null) {
callerApp = getRecordForAppLocked(caller);
if (callerApp == null) {
throw new SecurityException(
"Unable to find app for caller " + caller
+ " (pid=" + Binder.getCallingPid()
+ ") when registering receiver " + receiver);
}
if (callerApp.info.uid != SYSTEM_UID &&
!callerApp.pkgList.containsKey(callerPackage) &&
!"android".equals(callerPackage)) {
throw new SecurityException("Given caller package " + callerPackage
+ " is not running in process " + callerApp);
}
callingUid = callerApp.info.uid;
callingPid = callerApp.pid;
} else {
callerPackage = null;
callingUid = Binder.getCallingUid();
callingPid = Binder.getCallingPid();
}
instantApp = isInstantApp(callerApp, callerPackage, callingUid);
userId = mUserController.handleIncomingUser(callingPid, callingUid, userId, true,
ALLOW_FULL_ONLY, "registerReceiver", callerPackage);
Iterator<String> actions = filter.actionsIterator();
if (actions == null) {
ArrayList<String> noAction = new ArrayList<String>(1);
noAction.add(null);
actions = noAction.iterator();
}
// Collect stickies of users
int[] userIds = { UserHandle.USER_ALL, UserHandle.getUserId(callingUid) };
while (actions.hasNext()) {
String action = actions.next();
for (int id : userIds) {
ArrayMap<String, ArrayList<Intent>> stickies = mStickyBroadcasts.get(id);
if (stickies != null) {
ArrayList<Intent> intents = stickies.get(action);
if (intents != null) {
if (stickyIntents == null) {
stickyIntents = new ArrayList<Intent>();
}
stickyIntents.addAll(intents);
}
}
}
}
}
ArrayList<Intent> allSticky = null;
if (stickyIntents != null) {
final ContentResolver resolver = mContext.getContentResolver();
// Look for any matching sticky broadcasts...
for (int i = 0, N = stickyIntents.size(); i < N; i++) {
Intent intent = stickyIntents.get(i);
// Don't provided intents that aren't available to instant apps.
if (instantApp &&
(intent.getFlags() & Intent.FLAG_RECEIVER_VISIBLE_TO_INSTANT_APPS) == 0) {
continue;
}
// If intent has scheme "content", it will need to acccess
// provider that needs to lock mProviderMap in ActivityThread
// and also it may need to wait application response, so we
// cannot lock ActivityManagerService here.
if (filter.match(resolver, intent, true, TAG) >= 0) {
if (allSticky == null) {
allSticky = new ArrayList<Intent>();
}
allSticky.add(intent);
}
}
}
// The first sticky in the list is returned directly back to the client.
Intent sticky = allSticky != null ? allSticky.get(0) : null;
if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, "Register receiver " + filter + ": " + sticky);
if (receiver == null) {
return sticky;
}
synchronized (this) {
if (callerApp != null && (callerApp.thread == null
|| callerApp.thread.asBinder() != caller.asBinder())) {
// Original caller already died
return null;
}
ReceiverList rl = mRegisteredReceivers.get(receiver.asBinder());
if (rl == null) {
rl = new ReceiverList(this, callerApp, callingPid, callingUid,
userId, receiver);
if (rl.app != null) {
rl.app.receivers.add(rl);
} else {
try {
receiver.asBinder().linkToDeath(rl, 0);
} catch (RemoteException e) {
return sticky;
}
rl.linkedToDeath = true;
}
mRegisteredReceivers.put(receiver.asBinder(), rl);
} else if (rl.uid != callingUid) {
throw new IllegalArgumentException(
"Receiver requested to register for uid " + callingUid
+ " was previously registered for uid " + rl.uid
+ " callerPackage is " + callerPackage);
} else if (rl.pid != callingPid) {
throw new IllegalArgumentException(
"Receiver requested to register for pid " + callingPid
+ " was previously registered for pid " + rl.pid
+ " callerPackage is " + callerPackage);
} else if (rl.userId != userId) {
throw new IllegalArgumentException(
"Receiver requested to register for user " + userId
+ " was previously registered for user " + rl.userId
+ " callerPackage is " + callerPackage);
}
BroadcastFilter bf = new BroadcastFilter(filter, rl, callerPackage,
permission, callingUid, userId, instantApp, visibleToInstantApps);
rl.add(bf);
if (!bf.debugCheck()) {
Slog.w(TAG, "==> For Dynamic broadcast");
}
mReceiverResolver.addFilter(bf);
// Enqueue broadcasts for all existing stickies that match
// this filter.
if (allSticky != null) {
ArrayList receivers = new ArrayList();
receivers.add(bf);
final int stickyCount = allSticky.size();
for (int i = 0; i < stickyCount; i++) {
Intent intent = allSticky.get(i);
BroadcastQueue queue = broadcastQueueForIntent(intent);
BroadcastRecord r = new BroadcastRecord(queue, intent, null,
null, -1, -1, false, null, null, AppOpsManager.OP_NONE, null, receivers,
null, 0, null, null, false, true, true, -1);
queue.enqueueParallelBroadcastLocked(r);
queue.scheduleBroadcastsLocked();
}
}
return sticky;
}
}
public void unregisterReceiver(IIntentReceiver receiver) {
if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, "Unregister receiver: " + receiver);
final long origId = Binder.clearCallingIdentity();
try {
boolean doTrim = false;
synchronized(this) {
ReceiverList rl = mRegisteredReceivers.get(receiver.asBinder());
if (rl != null) {
final BroadcastRecord r = rl.curBroadcast;
if (r != null && r == r.queue.getMatchingOrderedReceiver(r)) {
final boolean doNext = r.queue.finishReceiverLocked(
r, r.resultCode, r.resultData, r.resultExtras,
r.resultAbort, false);
if (doNext) {
doTrim = true;
r.queue.processNextBroadcast(false);
}
}
if (rl.app != null) {
rl.app.receivers.remove(rl);
}
removeReceiverLocked(rl);
if (rl.linkedToDeath) {
rl.linkedToDeath = false;
rl.receiver.asBinder().unlinkToDeath(rl, 0);
}
}
}
// If we actually concluded any broadcasts, we might now be able
// to trim the recipients' apps from our working set
if (doTrim) {
trimApplications();
return;
}
} finally {
Binder.restoreCallingIdentity(origId);
}
}
void removeReceiverLocked(ReceiverList rl) {
mRegisteredReceivers.remove(rl.receiver.asBinder());
for (int i = rl.size() - 1; i >= 0; i--) {
mReceiverResolver.removeFilter(rl.get(i));
}
}
private final void sendPackageBroadcastLocked(int cmd, String[] packages, int userId) {
for (int i = mLruProcesses.size() - 1 ; i >= 0 ; i--) {
ProcessRecord r = mLruProcesses.get(i);
if (r.thread != null && (userId == UserHandle.USER_ALL || r.userId == userId)) {
try {
r.thread.dispatchPackageBroadcast(cmd, packages);
} catch (RemoteException ex) {
}
}
}
}
private List<ResolveInfo> collectReceiverComponents(Intent intent, String resolvedType,
int callingUid, int[] users) {
// TODO: come back and remove this assumption to triage all broadcasts
int pmFlags = STOCK_PM_FLAGS | MATCH_DEBUG_TRIAGED_MISSING;
List<ResolveInfo> receivers = null;
try {
HashSet<ComponentName> singleUserReceivers = null;
boolean scannedFirstReceivers = false;
for (int user : users) {
// Skip users that have Shell restrictions, with exception of always permitted
// Shell broadcasts
if (callingUid == SHELL_UID
&& mUserController.hasUserRestriction(
UserManager.DISALLOW_DEBUGGING_FEATURES, user)
&& !isPermittedShellBroadcast(intent)) {
continue;
}
List<ResolveInfo> newReceivers = AppGlobals.getPackageManager()
.queryIntentReceivers(intent, resolvedType, pmFlags, user).getList();
if (user != UserHandle.USER_SYSTEM && newReceivers != null) {
// If this is not the system user, we need to check for
// any receivers that should be filtered out.
for (int i=0; i<newReceivers.size(); i++) {
ResolveInfo ri = newReceivers.get(i);
if ((ri.activityInfo.flags&ActivityInfo.FLAG_SYSTEM_USER_ONLY) != 0) {
newReceivers.remove(i);
i--;
}
}
}
if (newReceivers != null && newReceivers.size() == 0) {
newReceivers = null;
}
if (receivers == null) {
receivers = newReceivers;
} else if (newReceivers != null) {
// We need to concatenate the additional receivers
// found with what we have do far. This would be easy,
// but we also need to de-dup any receivers that are
// singleUser.
if (!scannedFirstReceivers) {
// Collect any single user receivers we had already retrieved.
scannedFirstReceivers = true;
for (int i=0; i<receivers.size(); i++) {
ResolveInfo ri = receivers.get(i);
if ((ri.activityInfo.flags&ActivityInfo.FLAG_SINGLE_USER) != 0) {
ComponentName cn = new ComponentName(
ri.activityInfo.packageName, ri.activityInfo.name);
if (singleUserReceivers == null) {
singleUserReceivers = new HashSet<ComponentName>();
}
singleUserReceivers.add(cn);
}
}
}
// Add the new results to the existing results, tracking
// and de-dupping single user receivers.
for (int i=0; i<newReceivers.size(); i++) {
ResolveInfo ri = newReceivers.get(i);
if ((ri.activityInfo.flags&ActivityInfo.FLAG_SINGLE_USER) != 0) {
ComponentName cn = new ComponentName(
ri.activityInfo.packageName, ri.activityInfo.name);
if (singleUserReceivers == null) {
singleUserReceivers = new HashSet<ComponentName>();
}
if (!singleUserReceivers.contains(cn)) {
singleUserReceivers.add(cn);
receivers.add(ri);
}
} else {
receivers.add(ri);
}
}
}
}
} catch (RemoteException ex) {
// pm is in same process, this will never happen.
}
return receivers;
}
private boolean isPermittedShellBroadcast(Intent intent) {
// remote bugreport should always be allowed to be taken
return INTENT_REMOTE_BUGREPORT_FINISHED.equals(intent.getAction());
}
private void checkBroadcastFromSystem(Intent intent, ProcessRecord callerApp,
String callerPackage, int callingUid, boolean isProtectedBroadcast, List receivers) {
if ((intent.getFlags() & Intent.FLAG_RECEIVER_FROM_SHELL) != 0) {
// Don't yell about broadcasts sent via shell
return;
}
final String action = intent.getAction();
if (isProtectedBroadcast
|| Intent.ACTION_CLOSE_SYSTEM_DIALOGS.equals(action)
|| Intent.ACTION_DISMISS_KEYBOARD_SHORTCUTS.equals(action)
|| Intent.ACTION_MEDIA_BUTTON.equals(action)
|| Intent.ACTION_MEDIA_SCANNER_SCAN_FILE.equals(action)
|| Intent.ACTION_SHOW_KEYBOARD_SHORTCUTS.equals(action)
|| Intent.ACTION_MASTER_CLEAR.equals(action)
|| Intent.ACTION_FACTORY_RESET.equals(action)
|| AppWidgetManager.ACTION_APPWIDGET_CONFIGURE.equals(action)
|| AppWidgetManager.ACTION_APPWIDGET_UPDATE.equals(action)
|| LocationManager.HIGH_POWER_REQUEST_CHANGE_ACTION.equals(action)
|| TelephonyIntents.ACTION_REQUEST_OMADM_CONFIGURATION_UPDATE.equals(action)
|| SuggestionSpan.ACTION_SUGGESTION_PICKED.equals(action)
|| AudioEffect.ACTION_OPEN_AUDIO_EFFECT_CONTROL_SESSION.equals(action)
|| AudioEffect.ACTION_CLOSE_AUDIO_EFFECT_CONTROL_SESSION.equals(action)) {
// Broadcast is either protected, or it's a public action that
// we've relaxed, so it's fine for system internals to send.
return;
}
// This broadcast may be a problem... but there are often system components that
// want to send an internal broadcast to themselves, which is annoying to have to
// explicitly list each action as a protected broadcast, so we will check for that
// one safe case and allow it: an explicit broadcast, only being received by something
// that has protected itself.
if (receivers != null && receivers.size() > 0
&& (intent.getPackage() != null || intent.getComponent() != null)) {
boolean allProtected = true;
for (int i = receivers.size()-1; i >= 0; i--) {
Object target = receivers.get(i);
if (target instanceof ResolveInfo) {
ResolveInfo ri = (ResolveInfo)target;
if (ri.activityInfo.exported && ri.activityInfo.permission == null) {
allProtected = false;
break;
}
} else {
BroadcastFilter bf = (BroadcastFilter)target;
if (bf.requiredPermission == null) {
allProtected = false;
break;
}
}
}
if (allProtected) {
// All safe!
return;
}
}
// The vast majority of broadcasts sent from system internals
// should be protected to avoid security holes, so yell loudly
// to ensure we examine these cases.
if (callerApp != null) {
Log.wtf(TAG, "Sending non-protected broadcast " + action
+ " from system " + callerApp.toShortString() + " pkg " + callerPackage,
new Throwable());
} else {
Log.wtf(TAG, "Sending non-protected broadcast " + action
+ " from system uid " + UserHandle.formatUid(callingUid)
+ " pkg " + callerPackage,
new Throwable());
}
}
final int broadcastIntentLocked(ProcessRecord callerApp,
String callerPackage, Intent intent, String resolvedType,
IIntentReceiver resultTo, int resultCode, String resultData,
Bundle resultExtras, String[] requiredPermissions, int appOp, Bundle bOptions,
boolean ordered, boolean sticky, int callingPid, int callingUid, int userId) {
intent = new Intent(intent);
final boolean callerInstantApp = isInstantApp(callerApp, callerPackage, callingUid);
// Instant Apps cannot use FLAG_RECEIVER_VISIBLE_TO_INSTANT_APPS
if (callerInstantApp) {
intent.setFlags(intent.getFlags() & ~Intent.FLAG_RECEIVER_VISIBLE_TO_INSTANT_APPS);
}
// By default broadcasts do not go to stopped apps.
intent.addFlags(Intent.FLAG_EXCLUDE_STOPPED_PACKAGES);
// If we have not finished booting, don't allow this to launch new processes.
if (!mProcessesReady && (intent.getFlags()&Intent.FLAG_RECEIVER_BOOT_UPGRADE) == 0) {
intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY);
}
if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST,
(sticky ? "Broadcast sticky: ": "Broadcast: ") + intent
+ " ordered=" + ordered + " userid=" + userId);
if ((resultTo != null) && !ordered) {
Slog.w(TAG, "Broadcast " + intent + " not ordered but result callback requested!");
}
userId = mUserController.handleIncomingUser(callingPid, callingUid, userId, true,
ALLOW_NON_FULL, "broadcast", callerPackage);
// Make sure that the user who is receiving this broadcast is running.
// If not, we will just skip it. Make an exception for shutdown broadcasts
// and upgrade steps.
if (userId != UserHandle.USER_ALL && !mUserController.isUserRunning(userId, 0)) {
if ((callingUid != SYSTEM_UID
|| (intent.getFlags() & Intent.FLAG_RECEIVER_BOOT_UPGRADE) == 0)
&& !Intent.ACTION_SHUTDOWN.equals(intent.getAction())) {
Slog.w(TAG, "Skipping broadcast of " + intent
+ ": user " + userId + " is stopped");
return ActivityManager.BROADCAST_FAILED_USER_STOPPED;
}
}
BroadcastOptions brOptions = null;
if (bOptions != null) {
brOptions = new BroadcastOptions(bOptions);
if (brOptions.getTemporaryAppWhitelistDuration() > 0) {
// See if the caller is allowed to do this. Note we are checking against
// the actual real caller (not whoever provided the operation as say a
// PendingIntent), because that who is actually supplied the arguments.
if (checkComponentPermission(
android.Manifest.permission.CHANGE_DEVICE_IDLE_TEMP_WHITELIST,
Binder.getCallingPid(), Binder.getCallingUid(), -1, true)
!= PackageManager.PERMISSION_GRANTED) {
String msg = "Permission Denial: " + intent.getAction()
+ " broadcast from " + callerPackage + " (pid=" + callingPid
+ ", uid=" + callingUid + ")"
+ " requires "
+ android.Manifest.permission.CHANGE_DEVICE_IDLE_TEMP_WHITELIST;
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
}
}
// Verify that protected broadcasts are only being sent by system code,
// and that system code is only sending protected broadcasts.
final String action = intent.getAction();
final boolean isProtectedBroadcast;
try {
isProtectedBroadcast = AppGlobals.getPackageManager().isProtectedBroadcast(action);
} catch (RemoteException e) {
Slog.w(TAG, "Remote exception", e);
return ActivityManager.BROADCAST_SUCCESS;
}
final boolean isCallerSystem;
switch (UserHandle.getAppId(callingUid)) {
case ROOT_UID:
case SYSTEM_UID:
case PHONE_UID:
case BLUETOOTH_UID:
case NFC_UID:
isCallerSystem = true;
break;
default:
isCallerSystem = (callerApp != null) && callerApp.persistent;
break;
}
// First line security check before anything else: stop non-system apps from
// sending protected broadcasts.
if (!isCallerSystem) {
if (isProtectedBroadcast) {
String msg = "Permission Denial: not allowed to send broadcast "
+ action + " from pid="
+ callingPid + ", uid=" + callingUid;
Slog.w(TAG, msg);
throw new SecurityException(msg);
} else if (AppWidgetManager.ACTION_APPWIDGET_CONFIGURE.equals(action)
|| AppWidgetManager.ACTION_APPWIDGET_UPDATE.equals(action)) {
// Special case for compatibility: we don't want apps to send this,
// but historically it has not been protected and apps may be using it
// to poke their own app widget. So, instead of making it protected,
// just limit it to the caller.
if (callerPackage == null) {
String msg = "Permission Denial: not allowed to send broadcast "
+ action + " from unknown caller.";
Slog.w(TAG, msg);
throw new SecurityException(msg);
} else if (intent.getComponent() != null) {
// They are good enough to send to an explicit component... verify
// it is being sent to the calling app.
if (!intent.getComponent().getPackageName().equals(
callerPackage)) {
String msg = "Permission Denial: not allowed to send broadcast "
+ action + " to "
+ intent.getComponent().getPackageName() + " from "
+ callerPackage;
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
} else {
// Limit broadcast to their own package.
intent.setPackage(callerPackage);
}
}
}
if (action != null) {
if (getBackgroundLaunchBroadcasts().contains(action)) {
if (DEBUG_BACKGROUND_CHECK) {
Slog.i(TAG, "Broadcast action " + action + " forcing include-background");
}
intent.addFlags(Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND);
}
switch (action) {
case Intent.ACTION_UID_REMOVED:
case Intent.ACTION_PACKAGE_REMOVED:
case Intent.ACTION_PACKAGE_CHANGED:
case Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE:
case Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE:
case Intent.ACTION_PACKAGES_SUSPENDED:
case Intent.ACTION_PACKAGES_UNSUSPENDED:
// Handle special intents: if this broadcast is from the package
// manager about a package being removed, we need to remove all of
// its activities from the history stack.
if (checkComponentPermission(
android.Manifest.permission.BROADCAST_PACKAGE_REMOVED,
callingPid, callingUid, -1, true)
!= PackageManager.PERMISSION_GRANTED) {
String msg = "Permission Denial: " + intent.getAction()
+ " broadcast from " + callerPackage + " (pid=" + callingPid
+ ", uid=" + callingUid + ")"
+ " requires "
+ android.Manifest.permission.BROADCAST_PACKAGE_REMOVED;
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
switch (action) {
case Intent.ACTION_UID_REMOVED:
final int uid = getUidFromIntent(intent);
if (uid >= 0) {
mBatteryStatsService.removeUid(uid);
mAppOpsService.uidRemoved(uid);
}
break;
case Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE:
// If resources are unavailable just force stop all those packages
// and flush the attribute cache as well.
String list[] =
intent.getStringArrayExtra(Intent.EXTRA_CHANGED_PACKAGE_LIST);
if (list != null && list.length > 0) {
for (int i = 0; i < list.length; i++) {
forceStopPackageLocked(list[i], -1, false, true, true,
false, false, userId, "storage unmount");
}
mRecentTasks.cleanupLocked(UserHandle.USER_ALL);
sendPackageBroadcastLocked(
ApplicationThreadConstants.EXTERNAL_STORAGE_UNAVAILABLE,
list, userId);
}
break;
case Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE:
mRecentTasks.cleanupLocked(UserHandle.USER_ALL);
break;
case Intent.ACTION_PACKAGE_REMOVED:
case Intent.ACTION_PACKAGE_CHANGED:
Uri data = intent.getData();
String ssp;
if (data != null && (ssp=data.getSchemeSpecificPart()) != null) {
boolean removed = Intent.ACTION_PACKAGE_REMOVED.equals(action);
final boolean replacing =
intent.getBooleanExtra(Intent.EXTRA_REPLACING, false);
final boolean killProcess =
!intent.getBooleanExtra(Intent.EXTRA_DONT_KILL_APP, false);
final boolean fullUninstall = removed && !replacing;
if (removed) {
if (killProcess) {
forceStopPackageLocked(ssp, UserHandle.getAppId(
intent.getIntExtra(Intent.EXTRA_UID, -1)),
false, true, true, false, fullUninstall, userId,
removed ? "pkg removed" : "pkg changed");
}
final int cmd = killProcess
? ApplicationThreadConstants.PACKAGE_REMOVED
: ApplicationThreadConstants.PACKAGE_REMOVED_DONT_KILL;
sendPackageBroadcastLocked(cmd,
new String[] {ssp}, userId);
if (fullUninstall) {
mAppOpsService.packageRemoved(
intent.getIntExtra(Intent.EXTRA_UID, -1), ssp);
// Remove all permissions granted from/to this package
removeUriPermissionsForPackageLocked(ssp, userId, true);
mRecentTasks.removeTasksByPackageName(ssp, userId);
mServices.forceStopPackageLocked(ssp, userId);
// Hide the "unsupported display" dialog if necessary.
if (mUnsupportedDisplaySizeDialog != null && ssp.equals(
mUnsupportedDisplaySizeDialog.getPackageName())) {
mUnsupportedDisplaySizeDialog.dismiss();
mUnsupportedDisplaySizeDialog = null;
}
mCompatModePackages.handlePackageUninstalledLocked(ssp);
mBatteryStatsService.notePackageUninstalled(ssp);
}
} else {
if (killProcess) {
killPackageProcessesLocked(ssp, UserHandle.getAppId(
intent.getIntExtra(Intent.EXTRA_UID, -1)),
userId, ProcessList.INVALID_ADJ,
false, true, true, false, "change " + ssp);
}
cleanupDisabledPackageComponentsLocked(ssp, userId, killProcess,
intent.getStringArrayExtra(
Intent.EXTRA_CHANGED_COMPONENT_NAME_LIST));
}
}
break;
case Intent.ACTION_PACKAGES_SUSPENDED:
case Intent.ACTION_PACKAGES_UNSUSPENDED:
final boolean suspended = Intent.ACTION_PACKAGES_SUSPENDED.equals(
intent.getAction());
final String[] packageNames = intent.getStringArrayExtra(
Intent.EXTRA_CHANGED_PACKAGE_LIST);
final int userHandle = intent.getIntExtra(
Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL);
synchronized(ActivityManagerService.this) {
mRecentTasks.onPackagesSuspendedChanged(
packageNames, suspended, userHandle);
}
break;
}
break;
case Intent.ACTION_PACKAGE_REPLACED:
{
final Uri data = intent.getData();
final String ssp;
if (data != null && (ssp = data.getSchemeSpecificPart()) != null) {
ApplicationInfo aInfo = null;
try {
aInfo = AppGlobals.getPackageManager()
.getApplicationInfo(ssp, 0 /*flags*/, userId);
} catch (RemoteException ignore) {}
if (aInfo == null) {
Slog.w(TAG, "Dropping ACTION_PACKAGE_REPLACED for non-existent pkg:"
+ " ssp=" + ssp + " data=" + data);
return ActivityManager.BROADCAST_SUCCESS;
}
mStackSupervisor.updateActivityApplicationInfoLocked(aInfo);
sendPackageBroadcastLocked(ApplicationThreadConstants.PACKAGE_REPLACED,
new String[] {ssp}, userId);
}
break;
}
case Intent.ACTION_PACKAGE_ADDED:
{
// Special case for adding a package: by default turn on compatibility mode.
Uri data = intent.getData();
String ssp;
if (data != null && (ssp = data.getSchemeSpecificPart()) != null) {
final boolean replacing =
intent.getBooleanExtra(Intent.EXTRA_REPLACING, false);
mCompatModePackages.handlePackageAddedLocked(ssp, replacing);
try {
ApplicationInfo ai = AppGlobals.getPackageManager().
getApplicationInfo(ssp, 0, 0);
mBatteryStatsService.notePackageInstalled(ssp,
ai != null ? ai.versionCode : 0);
} catch (RemoteException e) {
}
}
break;
}
case Intent.ACTION_PACKAGE_DATA_CLEARED:
{
Uri data = intent.getData();
String ssp;
if (data != null && (ssp = data.getSchemeSpecificPart()) != null) {
// Hide the "unsupported display" dialog if necessary.
if (mUnsupportedDisplaySizeDialog != null && ssp.equals(
mUnsupportedDisplaySizeDialog.getPackageName())) {
mUnsupportedDisplaySizeDialog.dismiss();
mUnsupportedDisplaySizeDialog = null;
}
mCompatModePackages.handlePackageDataClearedLocked(ssp);
}
break;
}
case Intent.ACTION_TIMEZONE_CHANGED:
// If this is the time zone changed action, queue up a message that will reset
// the timezone of all currently running processes. This message will get
// queued up before the broadcast happens.
mHandler.sendEmptyMessage(UPDATE_TIME_ZONE);
break;
case Intent.ACTION_TIME_CHANGED:
// EXTRA_TIME_PREF_24_HOUR_FORMAT is optional so we must distinguish between
// the tri-state value it may contain and "unknown".
// For convenience we re-use the Intent extra values.
final int NO_EXTRA_VALUE_FOUND = -1;
final int timeFormatPreferenceMsgValue = intent.getIntExtra(
Intent.EXTRA_TIME_PREF_24_HOUR_FORMAT,
NO_EXTRA_VALUE_FOUND /* defaultValue */);
// Only send a message if the time preference is available.
if (timeFormatPreferenceMsgValue != NO_EXTRA_VALUE_FOUND) {
Message updateTimePreferenceMsg =
mHandler.obtainMessage(UPDATE_TIME_PREFERENCE_MSG,
timeFormatPreferenceMsgValue, 0);
mHandler.sendMessage(updateTimePreferenceMsg);
}
BatteryStatsImpl stats = mBatteryStatsService.getActiveStatistics();
synchronized (stats) {
stats.noteCurrentTimeChangedLocked();
}
break;
case Intent.ACTION_CLEAR_DNS_CACHE:
mHandler.sendEmptyMessage(CLEAR_DNS_CACHE_MSG);
break;
case Proxy.PROXY_CHANGE_ACTION:
ProxyInfo proxy = intent.getParcelableExtra(Proxy.EXTRA_PROXY_INFO);
mHandler.sendMessage(mHandler.obtainMessage(UPDATE_HTTP_PROXY_MSG, proxy));
break;
case android.hardware.Camera.ACTION_NEW_PICTURE:
case android.hardware.Camera.ACTION_NEW_VIDEO:
// In N we just turned these off; in O we are turing them back on partly,
// only for registered receivers. This will still address the main problem
// (a spam of apps waking up when a picture is taken putting significant
// memory pressure on the system at a bad point), while still allowing apps
// that are already actively running to know about this happening.
intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY);
break;
case android.security.KeyChain.ACTION_TRUST_STORE_CHANGED:
mHandler.sendEmptyMessage(HANDLE_TRUST_STORAGE_UPDATE_MSG);
break;
case "com.android.launcher.action.INSTALL_SHORTCUT":
// As of O, we no longer support this broadcasts, even for pre-O apps.
// Apps should now be using ShortcutManager.pinRequestShortcut().
Log.w(TAG, "Broadcast " + action
+ " no longer supported. It will not be delivered.");
return ActivityManager.BROADCAST_SUCCESS;
}
if (Intent.ACTION_PACKAGE_ADDED.equals(action) ||
Intent.ACTION_PACKAGE_REMOVED.equals(action) ||
Intent.ACTION_PACKAGE_REPLACED.equals(action)) {
final int uid = getUidFromIntent(intent);
if (uid != -1) {
final UidRecord uidRec = mActiveUids.get(uid);
if (uidRec != null) {
uidRec.updateHasInternetPermission();
}
}
}
}
// Add to the sticky list if requested.
if (sticky) {
if (checkPermission(android.Manifest.permission.BROADCAST_STICKY,
callingPid, callingUid)
!= PackageManager.PERMISSION_GRANTED) {
String msg = "Permission Denial: broadcastIntent() requesting a sticky broadcast from pid="
+ callingPid + ", uid=" + callingUid
+ " requires " + android.Manifest.permission.BROADCAST_STICKY;
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
if (requiredPermissions != null && requiredPermissions.length > 0) {
Slog.w(TAG, "Can't broadcast sticky intent " + intent
+ " and enforce permissions " + Arrays.toString(requiredPermissions));
return ActivityManager.BROADCAST_STICKY_CANT_HAVE_PERMISSION;
}
if (intent.getComponent() != null) {
throw new SecurityException(
"Sticky broadcasts can't target a specific component");
}
// We use userId directly here, since the "all" target is maintained
// as a separate set of sticky broadcasts.
if (userId != UserHandle.USER_ALL) {
// But first, if this is not a broadcast to all users, then
// make sure it doesn't conflict with an existing broadcast to
// all users.
ArrayMap<String, ArrayList<Intent>> stickies = mStickyBroadcasts.get(
UserHandle.USER_ALL);
if (stickies != null) {
ArrayList<Intent> list = stickies.get(intent.getAction());
if (list != null) {
int N = list.size();
int i;
for (i=0; i<N; i++) {
if (intent.filterEquals(list.get(i))) {
throw new IllegalArgumentException(
"Sticky broadcast " + intent + " for user "
+ userId + " conflicts with existing global broadcast");
}
}
}
}
}
ArrayMap<String, ArrayList<Intent>> stickies = mStickyBroadcasts.get(userId);
if (stickies == null) {
stickies = new ArrayMap<>();
mStickyBroadcasts.put(userId, stickies);
}
ArrayList<Intent> list = stickies.get(intent.getAction());
if (list == null) {
list = new ArrayList<>();
stickies.put(intent.getAction(), list);
}
final int stickiesCount = list.size();
int i;
for (i = 0; i < stickiesCount; i++) {
if (intent.filterEquals(list.get(i))) {
// This sticky already exists, replace it.
list.set(i, new Intent(intent));
break;
}
}
if (i >= stickiesCount) {
list.add(new Intent(intent));
}
}
int[] users;
if (userId == UserHandle.USER_ALL) {
// Caller wants broadcast to go to all started users.
users = mUserController.getStartedUserArray();
} else {
// Caller wants broadcast to go to one specific user.
users = new int[] {userId};
}
// Figure out who all will receive this broadcast.
List receivers = null;
List<BroadcastFilter> registeredReceivers = null;
// Need to resolve the intent to interested receivers...
if ((intent.getFlags()&Intent.FLAG_RECEIVER_REGISTERED_ONLY)
== 0) {
receivers = collectReceiverComponents(intent, resolvedType, callingUid, users);
}
if (intent.getComponent() == null) {
if (userId == UserHandle.USER_ALL && callingUid == SHELL_UID) {
// Query one target user at a time, excluding shell-restricted users
for (int i = 0; i < users.length; i++) {
if (mUserController.hasUserRestriction(
UserManager.DISALLOW_DEBUGGING_FEATURES, users[i])) {
continue;
}
List<BroadcastFilter> registeredReceiversForUser =
mReceiverResolver.queryIntent(intent,
resolvedType, false /*defaultOnly*/, users[i]);
if (registeredReceivers == null) {
registeredReceivers = registeredReceiversForUser;
} else if (registeredReceiversForUser != null) {
registeredReceivers.addAll(registeredReceiversForUser);
}
}
} else {
registeredReceivers = mReceiverResolver.queryIntent(intent,
resolvedType, false /*defaultOnly*/, userId);
}
}
final boolean replacePending =
(intent.getFlags()&Intent.FLAG_RECEIVER_REPLACE_PENDING) != 0;
if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, "Enqueueing broadcast: " + intent.getAction()
+ " replacePending=" + replacePending);
int NR = registeredReceivers != null ? registeredReceivers.size() : 0;
if (!ordered && NR > 0) {
// If we are not serializing this broadcast, then send the
// registered receivers separately so they don't wait for the
// components to be launched.
if (isCallerSystem) {
checkBroadcastFromSystem(intent, callerApp, callerPackage, callingUid,
isProtectedBroadcast, registeredReceivers);
}
final BroadcastQueue queue = broadcastQueueForIntent(intent);
BroadcastRecord r = new BroadcastRecord(queue, intent, callerApp,
callerPackage, callingPid, callingUid, callerInstantApp, resolvedType,
requiredPermissions, appOp, brOptions, registeredReceivers, resultTo,
resultCode, resultData, resultExtras, ordered, sticky, false, userId);
if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, "Enqueueing parallel broadcast " + r);
final boolean replaced = replacePending
&& (queue.replaceParallelBroadcastLocked(r) != null);
// Note: We assume resultTo is null for non-ordered broadcasts.
if (!replaced) {
queue.enqueueParallelBroadcastLocked(r);
queue.scheduleBroadcastsLocked();
}
registeredReceivers = null;
NR = 0;
}
// Merge into one list.
int ir = 0;
if (receivers != null) {
// A special case for PACKAGE_ADDED: do not allow the package
// being added to see this broadcast. This prevents them from
// using this as a back door to get run as soon as they are
// installed. Maybe in the future we want to have a special install
// broadcast or such for apps, but we'd like to deliberately make
// this decision.
String skipPackages[] = null;
if (Intent.ACTION_PACKAGE_ADDED.equals(intent.getAction())
|| Intent.ACTION_PACKAGE_RESTARTED.equals(intent.getAction())
|| Intent.ACTION_PACKAGE_DATA_CLEARED.equals(intent.getAction())) {
Uri data = intent.getData();
if (data != null) {
String pkgName = data.getSchemeSpecificPart();
if (pkgName != null) {
skipPackages = new String[] { pkgName };
}
}
} else if (Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE.equals(intent.getAction())) {
skipPackages = intent.getStringArrayExtra(Intent.EXTRA_CHANGED_PACKAGE_LIST);
}
if (skipPackages != null && (skipPackages.length > 0)) {
for (String skipPackage : skipPackages) {
if (skipPackage != null) {
int NT = receivers.size();
for (int it=0; it<NT; it++) {
ResolveInfo curt = (ResolveInfo)receivers.get(it);
if (curt.activityInfo.packageName.equals(skipPackage)) {
receivers.remove(it);
it--;
NT--;
}
}
}
}
}
int NT = receivers != null ? receivers.size() : 0;
int it = 0;
ResolveInfo curt = null;
BroadcastFilter curr = null;
while (it < NT && ir < NR) {
if (curt == null) {
curt = (ResolveInfo)receivers.get(it);
}
if (curr == null) {
curr = registeredReceivers.get(ir);
}
if (curr.getPriority() >= curt.priority) {
// Insert this broadcast record into the final list.
receivers.add(it, curr);
ir++;
curr = null;
it++;
NT++;
} else {
// Skip to the next ResolveInfo in the final list.
it++;
curt = null;
}
}
}
while (ir < NR) {
if (receivers == null) {
receivers = new ArrayList();
}
receivers.add(registeredReceivers.get(ir));
ir++;
}
if (isCallerSystem) {
checkBroadcastFromSystem(intent, callerApp, callerPackage, callingUid,
isProtectedBroadcast, receivers);
}
if ((receivers != null && receivers.size() > 0)
|| resultTo != null) {
BroadcastQueue queue = broadcastQueueForIntent(intent);
BroadcastRecord r = new BroadcastRecord(queue, intent, callerApp,
callerPackage, callingPid, callingUid, callerInstantApp, resolvedType,
requiredPermissions, appOp, brOptions, receivers, resultTo, resultCode,
resultData, resultExtras, ordered, sticky, false, userId);
if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, "Enqueueing ordered broadcast " + r
+ ": prev had " + queue.mOrderedBroadcasts.size());
if (DEBUG_BROADCAST) Slog.i(TAG_BROADCAST,
"Enqueueing broadcast " + r.intent.getAction());
final BroadcastRecord oldRecord =
replacePending ? queue.replaceOrderedBroadcastLocked(r) : null;
if (oldRecord != null) {
// Replaced, fire the result-to receiver.
if (oldRecord.resultTo != null) {
final BroadcastQueue oldQueue = broadcastQueueForIntent(oldRecord.intent);
try {
oldQueue.performReceiveLocked(oldRecord.callerApp, oldRecord.resultTo,
oldRecord.intent,
Activity.RESULT_CANCELED, null, null,
false, false, oldRecord.userId);
} catch (RemoteException e) {
Slog.w(TAG, "Failure ["
+ queue.mQueueName + "] sending broadcast result of "
+ intent, e);
}
}
} else {
queue.enqueueOrderedBroadcastLocked(r);
queue.scheduleBroadcastsLocked();
}
} else {
// There was nobody interested in the broadcast, but we still want to record
// that it happened.
if (intent.getComponent() == null && intent.getPackage() == null
&& (intent.getFlags()&Intent.FLAG_RECEIVER_REGISTERED_ONLY) == 0) {
// This was an implicit broadcast... let's record it for posterity.
addBroadcastStatLocked(intent.getAction(), callerPackage, 0, 0, 0);
}
}
return ActivityManager.BROADCAST_SUCCESS;
}
/**
* @return uid from the extra field {@link Intent#EXTRA_UID} if present, Otherwise -1
*/
private int getUidFromIntent(Intent intent) {
if (intent == null) {
return -1;
}
final Bundle intentExtras = intent.getExtras();
return intent.hasExtra(Intent.EXTRA_UID)
? intentExtras.getInt(Intent.EXTRA_UID) : -1;
}
final void rotateBroadcastStatsIfNeededLocked() {
final long now = SystemClock.elapsedRealtime();
if (mCurBroadcastStats == null ||
(mCurBroadcastStats.mStartRealtime +(24*60*60*1000) < now)) {
mLastBroadcastStats = mCurBroadcastStats;
if (mLastBroadcastStats != null) {
mLastBroadcastStats.mEndRealtime = SystemClock.elapsedRealtime();
mLastBroadcastStats.mEndUptime = SystemClock.uptimeMillis();
}
mCurBroadcastStats = new BroadcastStats();
}
}
final void addBroadcastStatLocked(String action, String srcPackage, int receiveCount,
int skipCount, long dispatchTime) {
rotateBroadcastStatsIfNeededLocked();
mCurBroadcastStats.addBroadcast(action, srcPackage, receiveCount, skipCount, dispatchTime);
}
final void addBackgroundCheckViolationLocked(String action, String targetPackage) {
rotateBroadcastStatsIfNeededLocked();
mCurBroadcastStats.addBackgroundCheckViolation(action, targetPackage);
}
final Intent verifyBroadcastLocked(Intent intent) {
// Refuse possible leaked file descriptors
if (intent != null && intent.hasFileDescriptors() == true) {
throw new IllegalArgumentException("File descriptors passed in Intent");
}
int flags = intent.getFlags();
if (!mProcessesReady) {
// if the caller really truly claims to know what they're doing, go
// ahead and allow the broadcast without launching any receivers
if ((flags&Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT) != 0) {
// This will be turned into a FLAG_RECEIVER_REGISTERED_ONLY later on if needed.
} else if ((flags&Intent.FLAG_RECEIVER_REGISTERED_ONLY) == 0) {
Slog.e(TAG, "Attempt to launch receivers of broadcast intent " + intent
+ " before boot completion");
throw new IllegalStateException("Cannot broadcast before boot completed");
}
}
if ((flags&Intent.FLAG_RECEIVER_BOOT_UPGRADE) != 0) {
throw new IllegalArgumentException(
"Can't use FLAG_RECEIVER_BOOT_UPGRADE here");
}
if ((flags & Intent.FLAG_RECEIVER_FROM_SHELL) != 0) {
switch (Binder.getCallingUid()) {
case ROOT_UID:
case SHELL_UID:
break;
default:
Slog.w(TAG, "Removing FLAG_RECEIVER_FROM_SHELL because caller is UID "
+ Binder.getCallingUid());
intent.removeFlags(Intent.FLAG_RECEIVER_FROM_SHELL);
break;
}
}
return intent;
}
public final int broadcastIntent(IApplicationThread caller,
Intent intent, String resolvedType, IIntentReceiver resultTo,
int resultCode, String resultData, Bundle resultExtras,
String[] requiredPermissions, int appOp, Bundle bOptions,
boolean serialized, boolean sticky, int userId) {
enforceNotIsolatedCaller("broadcastIntent");
synchronized(this) {
intent = verifyBroadcastLocked(intent);
final ProcessRecord callerApp = getRecordForAppLocked(caller);
final int callingPid = Binder.getCallingPid();
final int callingUid = Binder.getCallingUid();
final long origId = Binder.clearCallingIdentity();
int res = broadcastIntentLocked(callerApp,
callerApp != null ? callerApp.info.packageName : null,
intent, resolvedType, resultTo, resultCode, resultData, resultExtras,
requiredPermissions, appOp, bOptions, serialized, sticky,
callingPid, callingUid, userId);
Binder.restoreCallingIdentity(origId);
return res;
}
}
int broadcastIntentInPackage(String packageName, int uid,
Intent intent, String resolvedType, IIntentReceiver resultTo,
int resultCode, String resultData, Bundle resultExtras,
String requiredPermission, Bundle bOptions, boolean serialized, boolean sticky,
int userId) {
synchronized(this) {
intent = verifyBroadcastLocked(intent);
final long origId = Binder.clearCallingIdentity();
String[] requiredPermissions = requiredPermission == null ? null
: new String[] {requiredPermission};
int res = broadcastIntentLocked(null, packageName, intent, resolvedType,
resultTo, resultCode, resultData, resultExtras,
requiredPermissions, AppOpsManager.OP_NONE, bOptions, serialized,
sticky, -1, uid, userId);
Binder.restoreCallingIdentity(origId);
return res;
}
}
public final void unbroadcastIntent(IApplicationThread caller, Intent intent, int userId) {
// Refuse possible leaked file descriptors
if (intent != null && intent.hasFileDescriptors() == true) {
throw new IllegalArgumentException("File descriptors passed in Intent");
}
userId = mUserController.handleIncomingUser(Binder.getCallingPid(), Binder.getCallingUid(),
userId, true, ALLOW_NON_FULL, "removeStickyBroadcast", null);
synchronized(this) {
if (checkCallingPermission(android.Manifest.permission.BROADCAST_STICKY)
!= PackageManager.PERMISSION_GRANTED) {
String msg = "Permission Denial: unbroadcastIntent() from pid="
+ Binder.getCallingPid()
+ ", uid=" + Binder.getCallingUid()
+ " requires " + android.Manifest.permission.BROADCAST_STICKY;
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
ArrayMap<String, ArrayList<Intent>> stickies = mStickyBroadcasts.get(userId);
if (stickies != null) {
ArrayList<Intent> list = stickies.get(intent.getAction());
if (list != null) {
int N = list.size();
int i;
for (i=0; i<N; i++) {
if (intent.filterEquals(list.get(i))) {
list.remove(i);
break;
}
}
if (list.size() <= 0) {
stickies.remove(intent.getAction());
}
}
if (stickies.size() <= 0) {
mStickyBroadcasts.remove(userId);
}
}
}
}
void backgroundServicesFinishedLocked(int userId) {
for (BroadcastQueue queue : mBroadcastQueues) {
queue.backgroundServicesFinishedLocked(userId);
}
}
public void finishReceiver(IBinder who, int resultCode, String resultData,
Bundle resultExtras, boolean resultAbort, int flags) {
if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, "Finish receiver: " + who);
// Refuse possible leaked file descriptors
if (resultExtras != null && resultExtras.hasFileDescriptors()) {
throw new IllegalArgumentException("File descriptors passed in Bundle");
}
final long origId = Binder.clearCallingIdentity();
try {
boolean doNext = false;
BroadcastRecord r;
synchronized(this) {
BroadcastQueue queue = (flags & Intent.FLAG_RECEIVER_FOREGROUND) != 0
? mFgBroadcastQueue : mBgBroadcastQueue;
r = queue.getMatchingOrderedReceiver(who);
if (r != null) {
doNext = r.queue.finishReceiverLocked(r, resultCode,
resultData, resultExtras, resultAbort, true);
}
}
if (doNext) {
r.queue.processNextBroadcast(false);
}
trimApplications();
} finally {
Binder.restoreCallingIdentity(origId);
}
}
// =========================================================
// INSTRUMENTATION
// =========================================================
public boolean startInstrumentation(ComponentName className,
String profileFile, int flags, Bundle arguments,
IInstrumentationWatcher watcher, IUiAutomationConnection uiAutomationConnection,
int userId, String abiOverride) {
enforceNotIsolatedCaller("startInstrumentation");
userId = mUserController.handleIncomingUser(Binder.getCallingPid(), Binder.getCallingUid(),
userId, false, ALLOW_FULL_ONLY, "startInstrumentation", null);
// Refuse possible leaked file descriptors
if (arguments != null && arguments.hasFileDescriptors()) {
throw new IllegalArgumentException("File descriptors passed in Bundle");
}
synchronized(this) {
InstrumentationInfo ii = null;
ApplicationInfo ai = null;
try {
ii = mContext.getPackageManager().getInstrumentationInfo(
className, STOCK_PM_FLAGS);
ai = AppGlobals.getPackageManager().getApplicationInfo(
ii.targetPackage, STOCK_PM_FLAGS, userId);
} catch (PackageManager.NameNotFoundException e) {
} catch (RemoteException e) {
}
if (ii == null) {
reportStartInstrumentationFailureLocked(watcher, className,
"Unable to find instrumentation info for: " + className);
return false;
}
if (ai == null) {
reportStartInstrumentationFailureLocked(watcher, className,
"Unable to find instrumentation target package: " + ii.targetPackage);
return false;
}
if (!ai.hasCode()) {
reportStartInstrumentationFailureLocked(watcher, className,
"Instrumentation target has no code: " + ii.targetPackage);
return false;
}
int match = mContext.getPackageManager().checkSignatures(
ii.targetPackage, ii.packageName);
if (match < 0 && match != PackageManager.SIGNATURE_FIRST_NOT_SIGNED) {
String msg = "Permission Denial: starting instrumentation "
+ className + " from pid="
+ Binder.getCallingPid()
+ ", uid=" + Binder.getCallingPid()
+ " not allowed because package " + ii.packageName
+ " does not have a signature matching the target "
+ ii.targetPackage;
reportStartInstrumentationFailureLocked(watcher, className, msg);
throw new SecurityException(msg);
}
ActiveInstrumentation activeInstr = new ActiveInstrumentation(this);
activeInstr.mClass = className;
String defProcess = ai.processName;;
if (ii.targetProcesses == null) {
activeInstr.mTargetProcesses = new String[]{ai.processName};
} else if (ii.targetProcesses.equals("*")) {
activeInstr.mTargetProcesses = new String[0];
} else {
activeInstr.mTargetProcesses = ii.targetProcesses.split(",");
defProcess = activeInstr.mTargetProcesses[0];
}
activeInstr.mTargetInfo = ai;
activeInstr.mProfileFile = profileFile;
activeInstr.mArguments = arguments;
activeInstr.mWatcher = watcher;
activeInstr.mUiAutomationConnection = uiAutomationConnection;
activeInstr.mResultClass = className;
final long origId = Binder.clearCallingIdentity();
// Instrumentation can kill and relaunch even persistent processes
forceStopPackageLocked(ii.targetPackage, -1, true, false, true, true, false, userId,
"start instr");
ProcessRecord app = addAppLocked(ai, defProcess, false, abiOverride);
app.instr = activeInstr;
activeInstr.mFinished = false;
activeInstr.mRunningProcesses.add(app);
if (!mActiveInstrumentation.contains(activeInstr)) {
mActiveInstrumentation.add(activeInstr);
}
Binder.restoreCallingIdentity(origId);
}
return true;
}
/**
* Report errors that occur while attempting to start Instrumentation. Always writes the
* error to the logs, but if somebody is watching, send the report there too. This enables
* the "am" command to report errors with more information.
*
* @param watcher The IInstrumentationWatcher. Null if there isn't one.
* @param cn The component name of the instrumentation.
* @param report The error report.
*/
private void reportStartInstrumentationFailureLocked(IInstrumentationWatcher watcher,
ComponentName cn, String report) {
Slog.w(TAG, report);
if (watcher != null) {
Bundle results = new Bundle();
results.putString(Instrumentation.REPORT_KEY_IDENTIFIER, "ActivityManagerService");
results.putString("Error", report);
mInstrumentationReporter.reportStatus(watcher, cn, -1, results);
}
}
void addInstrumentationResultsLocked(ProcessRecord app, Bundle results) {
if (app.instr == null) {
Slog.w(TAG, "finishInstrumentation called on non-instrumented: " + app);
return;
}
if (!app.instr.mFinished && results != null) {
if (app.instr.mCurResults == null) {
app.instr.mCurResults = new Bundle(results);
} else {
app.instr.mCurResults.putAll(results);
}
}
}
public void addInstrumentationResults(IApplicationThread target, Bundle results) {
int userId = UserHandle.getCallingUserId();
// Refuse possible leaked file descriptors
if (results != null && results.hasFileDescriptors()) {
throw new IllegalArgumentException("File descriptors passed in Intent");
}
synchronized(this) {
ProcessRecord app = getRecordForAppLocked(target);
if (app == null) {
Slog.w(TAG, "addInstrumentationResults: no app for " + target);
return;
}
final long origId = Binder.clearCallingIdentity();
addInstrumentationResultsLocked(app, results);
Binder.restoreCallingIdentity(origId);
}
}
void finishInstrumentationLocked(ProcessRecord app, int resultCode, Bundle results) {
if (app.instr == null) {
Slog.w(TAG, "finishInstrumentation called on non-instrumented: " + app);
return;
}
if (!app.instr.mFinished) {
if (app.instr.mWatcher != null) {
Bundle finalResults = app.instr.mCurResults;
if (finalResults != null) {
if (app.instr.mCurResults != null && results != null) {
finalResults.putAll(results);
}
} else {
finalResults = results;
}
mInstrumentationReporter.reportFinished(app.instr.mWatcher,
app.instr.mClass, resultCode, finalResults);
}
// Can't call out of the system process with a lock held, so post a message.
if (app.instr.mUiAutomationConnection != null) {
mHandler.obtainMessage(SHUTDOWN_UI_AUTOMATION_CONNECTION_MSG,
app.instr.mUiAutomationConnection).sendToTarget();
}
app.instr.mFinished = true;
}
app.instr.removeProcess(app);
app.instr = null;
forceStopPackageLocked(app.info.packageName, -1, false, false, true, true, false, app.userId,
"finished inst");
}
public void finishInstrumentation(IApplicationThread target,
int resultCode, Bundle results) {
int userId = UserHandle.getCallingUserId();
// Refuse possible leaked file descriptors
if (results != null && results.hasFileDescriptors()) {
throw new IllegalArgumentException("File descriptors passed in Intent");
}
synchronized(this) {
ProcessRecord app = getRecordForAppLocked(target);
if (app == null) {
Slog.w(TAG, "finishInstrumentation: no app for " + target);
return;
}
final long origId = Binder.clearCallingIdentity();
finishInstrumentationLocked(app, resultCode, results);
Binder.restoreCallingIdentity(origId);
}
}
// =========================================================
// CONFIGURATION
// =========================================================
public ConfigurationInfo getDeviceConfigurationInfo() {
ConfigurationInfo config = new ConfigurationInfo();
synchronized (this) {
final Configuration globalConfig = getGlobalConfiguration();
config.reqTouchScreen = globalConfig.touchscreen;
config.reqKeyboardType = globalConfig.keyboard;
config.reqNavigation = globalConfig.navigation;
if (globalConfig.navigation == Configuration.NAVIGATION_DPAD
|| globalConfig.navigation == Configuration.NAVIGATION_TRACKBALL) {
config.reqInputFeatures |= ConfigurationInfo.INPUT_FEATURE_FIVE_WAY_NAV;
}
if (globalConfig.keyboard != Configuration.KEYBOARD_UNDEFINED
&& globalConfig.keyboard != Configuration.KEYBOARD_NOKEYS) {
config.reqInputFeatures |= ConfigurationInfo.INPUT_FEATURE_HARD_KEYBOARD;
}
config.reqGlEsVersion = GL_ES_VERSION;
}
return config;
}
ActivityStack getFocusedStack() {
return mStackSupervisor.getFocusedStack();
}
@Override
public StackInfo getFocusedStackInfo() throws RemoteException {
enforceCallerIsRecentsOrHasPermission(MANAGE_ACTIVITY_STACKS, "getStackInfo()");
long ident = Binder.clearCallingIdentity();
try {
synchronized (this) {
ActivityStack focusedStack = getFocusedStack();
if (focusedStack != null) {
return mStackSupervisor.getStackInfo(focusedStack.mStackId);
}
return null;
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
public Configuration getConfiguration() {
Configuration ci;
synchronized(this) {
ci = new Configuration(getGlobalConfiguration());
ci.userSetLocale = false;
}
return ci;
}
@Override
public void suppressResizeConfigChanges(boolean suppress) throws RemoteException {
enforceCallingPermission(MANAGE_ACTIVITY_STACKS, "suppressResizeConfigChanges()");
synchronized (this) {
mSuppressResizeConfigChanges = suppress;
}
}
/**
* NOTE: For the pinned stack, this method is usually called after the bounds animation has
* animated the stack to the fullscreen, but can also be called if we are relaunching an
* activity and clearing the task at the same time.
*/
@Override
// TODO: API should just be about changing windowing modes...
public void moveTasksToFullscreenStack(int fromStackId, boolean onTop) {
enforceCallerIsRecentsOrHasPermission(MANAGE_ACTIVITY_STACKS,
"moveTasksToFullscreenStack()");
synchronized (this) {
final long origId = Binder.clearCallingIdentity();
try {
final ActivityStack stack = mStackSupervisor.getStack(fromStackId);
if (stack != null){
if (!stack.isActivityTypeStandardOrUndefined()) {
throw new IllegalArgumentException(
"You can't move tasks from non-standard stacks.");
}
mStackSupervisor.moveTasksToFullscreenStackLocked(stack, onTop);
}
} finally {
Binder.restoreCallingIdentity(origId);
}
}
}
@Override
public void updatePersistentConfiguration(Configuration values) {
enforceCallingPermission(CHANGE_CONFIGURATION, "updatePersistentConfiguration()");
enforceWriteSettingsPermission("updatePersistentConfiguration()");
if (values == null) {
throw new NullPointerException("Configuration must not be null");
}
int userId = UserHandle.getCallingUserId();
synchronized(this) {
updatePersistentConfigurationLocked(values, userId);
}
}
private void updatePersistentConfigurationLocked(Configuration values, @UserIdInt int userId) {
final long origId = Binder.clearCallingIdentity();
try {
updateConfigurationLocked(values, null, false, true, userId, false /* deferResume */);
} finally {
Binder.restoreCallingIdentity(origId);
}
}
private void updateFontScaleIfNeeded(@UserIdInt int userId) {
final float scaleFactor = Settings.System.getFloatForUser(mContext.getContentResolver(),
FONT_SCALE, 1.0f, userId);
synchronized (this) {
if (getGlobalConfiguration().fontScale == scaleFactor) {
return;
}
final Configuration configuration
= mWindowManager.computeNewConfiguration(DEFAULT_DISPLAY);
configuration.fontScale = scaleFactor;
updatePersistentConfigurationLocked(configuration, userId);
}
}
private void enforceWriteSettingsPermission(String func) {
int uid = Binder.getCallingUid();
if (uid == ROOT_UID) {
return;
}
if (Settings.checkAndNoteWriteSettingsOperation(mContext, uid,
Settings.getPackageNameForUid(mContext, uid), false)) {
return;
}
String msg = "Permission Denial: " + func + " from pid="
+ Binder.getCallingPid()
+ ", uid=" + uid
+ " requires " + android.Manifest.permission.WRITE_SETTINGS;
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
@Override
public boolean updateConfiguration(Configuration values) {
enforceCallingPermission(CHANGE_CONFIGURATION, "updateConfiguration()");
synchronized(this) {
if (values == null && mWindowManager != null) {
// sentinel: fetch the current configuration from the window manager
values = mWindowManager.computeNewConfiguration(DEFAULT_DISPLAY);
}
if (mWindowManager != null) {
// Update OOM levels based on display size.
mProcessList.applyDisplaySize(mWindowManager);
}
final long origId = Binder.clearCallingIdentity();
try {
if (values != null) {
Settings.System.clearConfiguration(values);
}
updateConfigurationLocked(values, null, false, false /* persistent */,
UserHandle.USER_NULL, false /* deferResume */,
mTmpUpdateConfigurationResult);
return mTmpUpdateConfigurationResult.changes != 0;
} finally {
Binder.restoreCallingIdentity(origId);
}
}
}
void updateUserConfigurationLocked() {
final Configuration configuration = new Configuration(getGlobalConfiguration());
final int currentUserId = mUserController.getCurrentUserId();
Settings.System.adjustConfigurationForUser(mContext.getContentResolver(), configuration,
currentUserId, Settings.System.canWrite(mContext));
updateConfigurationLocked(configuration, null /* starting */, false /* initLocale */,
false /* persistent */, currentUserId, false /* deferResume */);
}
boolean updateConfigurationLocked(Configuration values, ActivityRecord starting,
boolean initLocale) {
return updateConfigurationLocked(values, starting, initLocale, false /* deferResume */);
}
boolean updateConfigurationLocked(Configuration values, ActivityRecord starting,
boolean initLocale, boolean deferResume) {
// pass UserHandle.USER_NULL as userId because we don't persist configuration for any user
return updateConfigurationLocked(values, starting, initLocale, false /* persistent */,
UserHandle.USER_NULL, deferResume);
}
// To cache the list of supported system locales
private String[] mSupportedSystemLocales = null;
private boolean updateConfigurationLocked(Configuration values, ActivityRecord starting,
boolean initLocale, boolean persistent, int userId, boolean deferResume) {
return updateConfigurationLocked(values, starting, initLocale, persistent, userId,
deferResume, null /* result */);
}
/**
* Do either or both things: (1) change the current configuration, and (2)
* make sure the given activity is running with the (now) current
* configuration. Returns true if the activity has been left running, or
* false if <var>starting</var> is being destroyed to match the new
* configuration.
*
* @param userId is only used when persistent parameter is set to true to persist configuration
* for that particular user
*/
private boolean updateConfigurationLocked(Configuration values, ActivityRecord starting,
boolean initLocale, boolean persistent, int userId, boolean deferResume,
UpdateConfigurationResult result) {
int changes = 0;
boolean kept = true;
if (mWindowManager != null) {
mWindowManager.deferSurfaceLayout();
}
try {
if (values != null) {
changes = updateGlobalConfiguration(values, initLocale, persistent, userId,
deferResume);
}
kept = ensureConfigAndVisibilityAfterUpdate(starting, changes);
} finally {
if (mWindowManager != null) {
mWindowManager.continueSurfaceLayout();
}
}
if (result != null) {
result.changes = changes;
result.activityRelaunched = !kept;
}
return kept;
}
/** Update default (global) configuration and notify listeners about changes. */
private int updateGlobalConfiguration(@NonNull Configuration values, boolean initLocale,
boolean persistent, int userId, boolean deferResume) {
mTempConfig.setTo(getGlobalConfiguration());
final int changes = mTempConfig.updateFrom(values);
if (changes == 0) {
// Since calling to Activity.setRequestedOrientation leads to freezing the window with
// setting WindowManagerService.mWaitingForConfig to true, it is important that we call
// performDisplayOverrideConfigUpdate in order to send the new display configuration
// (even if there are no actual changes) to unfreeze the window.
performDisplayOverrideConfigUpdate(values, deferResume, DEFAULT_DISPLAY);
return 0;
}
if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.i(TAG_CONFIGURATION,
"Updating global configuration to: " + values);
EventLog.writeEvent(EventLogTags.CONFIGURATION_CHANGED, changes);
if (!initLocale && !values.getLocales().isEmpty() && values.userSetLocale) {
final LocaleList locales = values.getLocales();
int bestLocaleIndex = 0;
if (locales.size() > 1) {
if (mSupportedSystemLocales == null) {
mSupportedSystemLocales = Resources.getSystem().getAssets().getLocales();
}
bestLocaleIndex = Math.max(0, locales.getFirstMatchIndex(mSupportedSystemLocales));
}
SystemProperties.set("persist.sys.locale",
locales.get(bestLocaleIndex).toLanguageTag());
LocaleList.setDefault(locales, bestLocaleIndex);
mHandler.sendMessage(mHandler.obtainMessage(SEND_LOCALE_TO_MOUNT_DAEMON_MSG,
locales.get(bestLocaleIndex)));
}
mConfigurationSeq = Math.max(++mConfigurationSeq, 1);
mTempConfig.seq = mConfigurationSeq;
// Update stored global config and notify everyone about the change.
mStackSupervisor.onConfigurationChanged(mTempConfig);
Slog.i(TAG, "Config changes=" + Integer.toHexString(changes) + " " + mTempConfig);
// TODO(multi-display): Update UsageEvents#Event to include displayId.
mUsageStatsService.reportConfigurationChange(mTempConfig,
mUserController.getCurrentUserId());
// TODO: If our config changes, should we auto dismiss any currently showing dialogs?
mShowDialogs = shouldShowDialogs(mTempConfig);
AttributeCache ac = AttributeCache.instance();
if (ac != null) {
ac.updateConfiguration(mTempConfig);
}
// Make sure all resources in our process are updated right now, so that anyone who is going
// to retrieve resource values after we return will be sure to get the new ones. This is
// especially important during boot, where the first config change needs to guarantee all
// resources have that config before following boot code is executed.
mSystemThread.applyConfigurationToResources(mTempConfig);
// We need another copy of global config because we're scheduling some calls instead of
// running them in place. We need to be sure that object we send will be handled unchanged.
final Configuration configCopy = new Configuration(mTempConfig);
if (persistent && Settings.System.hasInterestingConfigurationChanges(changes)) {
Message msg = mHandler.obtainMessage(UPDATE_CONFIGURATION_MSG);
msg.obj = configCopy;
msg.arg1 = userId;
mHandler.sendMessage(msg);
}
for (int i = mLruProcesses.size() - 1; i >= 0; i--) {
ProcessRecord app = mLruProcesses.get(i);
try {
if (app.thread != null) {
if (DEBUG_CONFIGURATION) Slog.v(TAG_CONFIGURATION, "Sending to proc "
+ app.processName + " new config " + configCopy);
app.thread.scheduleConfigurationChanged(configCopy);
}
} catch (Exception e) {
}
}
Intent intent = new Intent(Intent.ACTION_CONFIGURATION_CHANGED);
intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | Intent.FLAG_RECEIVER_REPLACE_PENDING
| Intent.FLAG_RECEIVER_FOREGROUND
| Intent.FLAG_RECEIVER_VISIBLE_TO_INSTANT_APPS);
broadcastIntentLocked(null, null, intent, null, null, 0, null, null, null,
AppOpsManager.OP_NONE, null, false, false, MY_PID, SYSTEM_UID,
UserHandle.USER_ALL);
if ((changes & ActivityInfo.CONFIG_LOCALE) != 0) {
intent = new Intent(Intent.ACTION_LOCALE_CHANGED);
intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND
| Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND
| Intent.FLAG_RECEIVER_VISIBLE_TO_INSTANT_APPS);
if (initLocale || !mProcessesReady) {
intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY);
}
broadcastIntentLocked(null, null, intent, null, null, 0, null, null, null,
AppOpsManager.OP_NONE, null, false, false, MY_PID, SYSTEM_UID,
UserHandle.USER_ALL);
}
// Override configuration of the default display duplicates global config, so we need to
// update it also. This will also notify WindowManager about changes.
performDisplayOverrideConfigUpdate(mStackSupervisor.getConfiguration(), deferResume,
DEFAULT_DISPLAY);
return changes;
}
@Override
public boolean updateDisplayOverrideConfiguration(Configuration values, int displayId) {
enforceCallingPermission(CHANGE_CONFIGURATION, "updateDisplayOverrideConfiguration()");
synchronized (this) {
// Check if display is initialized in AM.
if (!mStackSupervisor.isDisplayAdded(displayId)) {
// Call might come when display is not yet added or has already been removed.
if (DEBUG_CONFIGURATION) {
Slog.w(TAG, "Trying to update display configuration for non-existing displayId="
+ displayId);
}
return false;
}
if (values == null && mWindowManager != null) {
// sentinel: fetch the current configuration from the window manager
values = mWindowManager.computeNewConfiguration(displayId);
}
if (mWindowManager != null) {
// Update OOM levels based on display size.
mProcessList.applyDisplaySize(mWindowManager);
}
final long origId = Binder.clearCallingIdentity();
try {
if (values != null) {
Settings.System.clearConfiguration(values);
}
updateDisplayOverrideConfigurationLocked(values, null /* starting */,
false /* deferResume */, displayId, mTmpUpdateConfigurationResult);
return mTmpUpdateConfigurationResult.changes != 0;
} finally {
Binder.restoreCallingIdentity(origId);
}
}
}
boolean updateDisplayOverrideConfigurationLocked(Configuration values, ActivityRecord starting,
boolean deferResume, int displayId) {
return updateDisplayOverrideConfigurationLocked(values, starting, deferResume /* deferResume */,
displayId, null /* result */);
}
/**
* Updates override configuration specific for the selected display. If no config is provided,
* new one will be computed in WM based on current display info.
*/
private boolean updateDisplayOverrideConfigurationLocked(Configuration values,
ActivityRecord starting, boolean deferResume, int displayId,
UpdateConfigurationResult result) {
int changes = 0;
boolean kept = true;
if (mWindowManager != null) {
mWindowManager.deferSurfaceLayout();
}
try {
if (values != null) {
if (displayId == DEFAULT_DISPLAY) {
// Override configuration of the default display duplicates global config, so
// we're calling global config update instead for default display. It will also
// apply the correct override config.
changes = updateGlobalConfiguration(values, false /* initLocale */,
false /* persistent */, UserHandle.USER_NULL /* userId */, deferResume);
} else {
changes = performDisplayOverrideConfigUpdate(values, deferResume, displayId);
}
}
kept = ensureConfigAndVisibilityAfterUpdate(starting, changes);
} finally {
if (mWindowManager != null) {
mWindowManager.continueSurfaceLayout();
}
}
if (result != null) {
result.changes = changes;
result.activityRelaunched = !kept;
}
return kept;
}
private int performDisplayOverrideConfigUpdate(Configuration values, boolean deferResume,
int displayId) {
mTempConfig.setTo(mStackSupervisor.getDisplayOverrideConfiguration(displayId));
final int changes = mTempConfig.updateFrom(values);
if (changes != 0) {
Slog.i(TAG, "Override config changes=" + Integer.toHexString(changes) + " "
+ mTempConfig + " for displayId=" + displayId);
mStackSupervisor.setDisplayOverrideConfiguration(mTempConfig, displayId);
final boolean isDensityChange = (changes & ActivityInfo.CONFIG_DENSITY) != 0;
if (isDensityChange && displayId == DEFAULT_DISPLAY) {
// Reset the unsupported display size dialog.
mUiHandler.sendEmptyMessage(SHOW_UNSUPPORTED_DISPLAY_SIZE_DIALOG_MSG);
killAllBackgroundProcessesExcept(N,
ActivityManager.PROCESS_STATE_FOREGROUND_SERVICE);
}
}
// Update the configuration with WM first and check if any of the stacks need to be resized
// due to the configuration change. If so, resize the stacks now and do any relaunches if
// necessary. This way we don't need to relaunch again afterwards in
// ensureActivityConfigurationLocked().
if (mWindowManager != null) {
final int[] resizedStacks =
mWindowManager.setNewDisplayOverrideConfiguration(mTempConfig, displayId);
if (resizedStacks != null) {
for (int stackId : resizedStacks) {
resizeStackWithBoundsFromWindowManager(stackId, deferResume);
}
}
}
return changes;
}
/** Applies latest configuration and/or visibility updates if needed. */
private boolean ensureConfigAndVisibilityAfterUpdate(ActivityRecord starting, int changes) {
boolean kept = true;
final ActivityStack mainStack = mStackSupervisor.getFocusedStack();
// mainStack is null during startup.
if (mainStack != null) {
if (changes != 0 && starting == null) {
// If the configuration changed, and the caller is not already
// in the process of starting an activity, then find the top
// activity to check if its configuration needs to change.
starting = mainStack.topRunningActivityLocked();
}
if (starting != null) {
kept = starting.ensureActivityConfigurationLocked(changes,
false /* preserveWindow */);
// And we need to make sure at this point that all other activities
// are made visible with the correct configuration.
mStackSupervisor.ensureActivitiesVisibleLocked(starting, changes,
!PRESERVE_WINDOWS);
}
}
return kept;
}
/** Helper method that requests bounds from WM and applies them to stack. */
private void resizeStackWithBoundsFromWindowManager(int stackId, boolean deferResume) {
final Rect newStackBounds = new Rect();
final ActivityStack stack = mStackSupervisor.getStack(stackId);
stack.getBoundsForNewConfiguration(newStackBounds);
mStackSupervisor.resizeStackLocked(
stack, !newStackBounds.isEmpty() ? newStackBounds : null /* bounds */,
null /* tempTaskBounds */, null /* tempTaskInsetBounds */,
false /* preserveWindows */, false /* allowResizeInDockedMode */, deferResume);
}
/**
* Decide based on the configuration whether we should show the ANR,
* crash, etc dialogs. The idea is that if there is no affordance to
* press the on-screen buttons, or the user experience would be more
* greatly impacted than the crash itself, we shouldn't show the dialog.
*
* A thought: SystemUI might also want to get told about this, the Power
* dialog / global actions also might want different behaviors.
*/
private static boolean shouldShowDialogs(Configuration config) {
final boolean inputMethodExists = !(config.keyboard == Configuration.KEYBOARD_NOKEYS
&& config.touchscreen == Configuration.TOUCHSCREEN_NOTOUCH
&& config.navigation == Configuration.NAVIGATION_NONAV);
int modeType = config.uiMode & Configuration.UI_MODE_TYPE_MASK;
final boolean uiModeSupportsDialogs = (modeType != Configuration.UI_MODE_TYPE_CAR
&& !(modeType == Configuration.UI_MODE_TYPE_WATCH && Build.IS_USER)
&& modeType != Configuration.UI_MODE_TYPE_TELEVISION
&& modeType != Configuration.UI_MODE_TYPE_VR_HEADSET);
return inputMethodExists && uiModeSupportsDialogs;
}
@Override
public boolean shouldUpRecreateTask(IBinder token, String destAffinity) {
synchronized (this) {
ActivityRecord srec = ActivityRecord.forTokenLocked(token);
if (srec != null) {
return srec.getStack().shouldUpRecreateTaskLocked(srec, destAffinity);
}
}
return false;
}
public boolean navigateUpTo(IBinder token, Intent destIntent, int resultCode,
Intent resultData) {
synchronized (this) {
final ActivityRecord r = ActivityRecord.forTokenLocked(token);
if (r != null) {
return r.getStack().navigateUpToLocked(r, destIntent, resultCode, resultData);
}
return false;
}
}
public int getLaunchedFromUid(IBinder activityToken) {
ActivityRecord srec;
synchronized (this) {
srec = ActivityRecord.forTokenLocked(activityToken);
}
if (srec == null) {
return -1;
}
return srec.launchedFromUid;
}
public String getLaunchedFromPackage(IBinder activityToken) {
ActivityRecord srec;
synchronized (this) {
srec = ActivityRecord.forTokenLocked(activityToken);
}
if (srec == null) {
return null;
}
return srec.launchedFromPackage;
}
// =========================================================
// LIFETIME MANAGEMENT
// =========================================================
// Returns whether the app is receiving broadcast.
// If receiving, fetch all broadcast queues which the app is
// the current [or imminent] receiver on.
private boolean isReceivingBroadcastLocked(ProcessRecord app,
ArraySet<BroadcastQueue> receivingQueues) {
if (!app.curReceivers.isEmpty()) {
for (BroadcastRecord r : app.curReceivers) {
receivingQueues.add(r.queue);
}
return true;
}
// It's not the current receiver, but it might be starting up to become one
for (BroadcastQueue queue : mBroadcastQueues) {
final BroadcastRecord r = queue.mPendingBroadcast;
if (r != null && r.curApp == app) {
// found it; report which queue it's in
receivingQueues.add(queue);
}
}
return !receivingQueues.isEmpty();
}
Association startAssociationLocked(int sourceUid, String sourceProcess, int sourceState,
int targetUid, ComponentName targetComponent, String targetProcess) {
if (!mTrackingAssociations) {
return null;
}
ArrayMap<ComponentName, SparseArray<ArrayMap<String, Association>>> components
= mAssociations.get(targetUid);
if (components == null) {
components = new ArrayMap<>();
mAssociations.put(targetUid, components);
}
SparseArray<ArrayMap<String, Association>> sourceUids = components.get(targetComponent);
if (sourceUids == null) {
sourceUids = new SparseArray<>();
components.put(targetComponent, sourceUids);
}
ArrayMap<String, Association> sourceProcesses = sourceUids.get(sourceUid);
if (sourceProcesses == null) {
sourceProcesses = new ArrayMap<>();
sourceUids.put(sourceUid, sourceProcesses);
}
Association ass = sourceProcesses.get(sourceProcess);
if (ass == null) {
ass = new Association(sourceUid, sourceProcess, targetUid, targetComponent,
targetProcess);
sourceProcesses.put(sourceProcess, ass);
}
ass.mCount++;
ass.mNesting++;
if (ass.mNesting == 1) {
ass.mStartTime = ass.mLastStateUptime = SystemClock.uptimeMillis();
ass.mLastState = sourceState;
}
return ass;
}
void stopAssociationLocked(int sourceUid, String sourceProcess, int targetUid,
ComponentName targetComponent) {
if (!mTrackingAssociations) {
return;
}
ArrayMap<ComponentName, SparseArray<ArrayMap<String, Association>>> components
= mAssociations.get(targetUid);
if (components == null) {
return;
}
SparseArray<ArrayMap<String, Association>> sourceUids = components.get(targetComponent);
if (sourceUids == null) {
return;
}
ArrayMap<String, Association> sourceProcesses = sourceUids.get(sourceUid);
if (sourceProcesses == null) {
return;
}
Association ass = sourceProcesses.get(sourceProcess);
if (ass == null || ass.mNesting <= 0) {
return;
}
ass.mNesting--;
if (ass.mNesting == 0) {
long uptime = SystemClock.uptimeMillis();
ass.mTime += uptime - ass.mStartTime;
ass.mStateTimes[ass.mLastState-ActivityManager.MIN_PROCESS_STATE]
+= uptime - ass.mLastStateUptime;
ass.mLastState = ActivityManager.MAX_PROCESS_STATE + 2;
}
}
private void noteUidProcessState(final int uid, final int state) {
mBatteryStatsService.noteUidProcessState(uid, state);
if (mTrackingAssociations) {
for (int i1=0, N1=mAssociations.size(); i1<N1; i1++) {
ArrayMap<ComponentName, SparseArray<ArrayMap<String, Association>>> targetComponents
= mAssociations.valueAt(i1);
for (int i2=0, N2=targetComponents.size(); i2<N2; i2++) {
SparseArray<ArrayMap<String, Association>> sourceUids
= targetComponents.valueAt(i2);
ArrayMap<String, Association> sourceProcesses = sourceUids.get(uid);
if (sourceProcesses != null) {
for (int i4=0, N4=sourceProcesses.size(); i4<N4; i4++) {
Association ass = sourceProcesses.valueAt(i4);
if (ass.mNesting >= 1) {
// currently associated
long uptime = SystemClock.uptimeMillis();
ass.mStateTimes[ass.mLastState-ActivityManager.MIN_PROCESS_STATE]
+= uptime - ass.mLastStateUptime;
ass.mLastState = state;
ass.mLastStateUptime = uptime;
}
}
}
}
}
}
}
private final int computeOomAdjLocked(ProcessRecord app, int cachedAdj, ProcessRecord TOP_APP,
boolean doingAll, long now) {
if (mAdjSeq == app.adjSeq) {
// This adjustment has already been computed.
return app.curRawAdj;
}
if (app.thread == null) {
app.adjSeq = mAdjSeq;
app.curSchedGroup = ProcessList.SCHED_GROUP_BACKGROUND;
app.curProcState = ActivityManager.PROCESS_STATE_CACHED_EMPTY;
return (app.curAdj=app.curRawAdj=ProcessList.CACHED_APP_MAX_ADJ);
}
app.adjTypeCode = ActivityManager.RunningAppProcessInfo.REASON_UNKNOWN;
app.adjSource = null;
app.adjTarget = null;
app.empty = false;
app.cached = false;
final int activitiesSize = app.activities.size();
if (app.maxAdj <= ProcessList.FOREGROUND_APP_ADJ) {
// The max adjustment doesn't allow this app to be anything
// below foreground, so it is not worth doing work for it.
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Making fixed: " + app);
app.adjType = "fixed";
app.adjSeq = mAdjSeq;
app.curRawAdj = app.maxAdj;
app.foregroundActivities = false;
app.curSchedGroup = ProcessList.SCHED_GROUP_DEFAULT;
app.curProcState = ActivityManager.PROCESS_STATE_PERSISTENT;
// System processes can do UI, and when they do we want to have
// them trim their memory after the user leaves the UI. To
// facilitate this, here we need to determine whether or not it
// is currently showing UI.
app.systemNoUi = true;
if (app == TOP_APP) {
app.systemNoUi = false;
app.curSchedGroup = ProcessList.SCHED_GROUP_TOP_APP;
app.adjType = "pers-top-activity";
} else if (app.hasTopUi) {
app.systemNoUi = false;
app.curSchedGroup = ProcessList.SCHED_GROUP_TOP_APP;
app.adjType = "pers-top-ui";
} else if (activitiesSize > 0) {
for (int j = 0; j < activitiesSize; j++) {
final ActivityRecord r = app.activities.get(j);
if (r.visible) {
app.systemNoUi = false;
}
}
}
if (!app.systemNoUi) {
app.curProcState = ActivityManager.PROCESS_STATE_PERSISTENT_UI;
}
return (app.curAdj=app.maxAdj);
}
app.systemNoUi = false;
final int PROCESS_STATE_CUR_TOP = mTopProcessState;
// Determine the importance of the process, starting with most
// important to least, and assign an appropriate OOM adjustment.
int adj;
int schedGroup;
int procState;
boolean foregroundActivities = false;
mTmpBroadcastQueue.clear();
if (app == TOP_APP) {
// The last app on the list is the foreground app.
adj = ProcessList.FOREGROUND_APP_ADJ;
schedGroup = ProcessList.SCHED_GROUP_TOP_APP;
app.adjType = "top-activity";
foregroundActivities = true;
procState = PROCESS_STATE_CUR_TOP;
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Making top: " + app);
} else if (app.instr != null) {
// Don't want to kill running instrumentation.
adj = ProcessList.FOREGROUND_APP_ADJ;
schedGroup = ProcessList.SCHED_GROUP_DEFAULT;
app.adjType = "instrumentation";
procState = ActivityManager.PROCESS_STATE_FOREGROUND_SERVICE;
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Making instrumentation: " + app);
} else if (isReceivingBroadcastLocked(app, mTmpBroadcastQueue)) {
// An app that is currently receiving a broadcast also
// counts as being in the foreground for OOM killer purposes.
// It's placed in a sched group based on the nature of the
// broadcast as reflected by which queue it's active in.
adj = ProcessList.FOREGROUND_APP_ADJ;
schedGroup = (mTmpBroadcastQueue.contains(mFgBroadcastQueue))
? ProcessList.SCHED_GROUP_DEFAULT : ProcessList.SCHED_GROUP_BACKGROUND;
app.adjType = "broadcast";
procState = ActivityManager.PROCESS_STATE_RECEIVER;
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Making broadcast: " + app);
} else if (app.executingServices.size() > 0) {
// An app that is currently executing a service callback also
// counts as being in the foreground.
adj = ProcessList.FOREGROUND_APP_ADJ;
schedGroup = app.execServicesFg ?
ProcessList.SCHED_GROUP_DEFAULT : ProcessList.SCHED_GROUP_BACKGROUND;
app.adjType = "exec-service";
procState = ActivityManager.PROCESS_STATE_SERVICE;
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Making exec-service: " + app);
//Slog.i(TAG, "EXEC " + (app.execServicesFg ? "FG" : "BG") + ": " + app);
} else {
// As far as we know the process is empty. We may change our mind later.
schedGroup = ProcessList.SCHED_GROUP_BACKGROUND;
// At this point we don't actually know the adjustment. Use the cached adj
// value that the caller wants us to.
adj = cachedAdj;
procState = ActivityManager.PROCESS_STATE_CACHED_EMPTY;
app.cached = true;
app.empty = true;
app.adjType = "cch-empty";
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Making empty: " + app);
}
// Examine all activities if not already foreground.
if (!foregroundActivities && activitiesSize > 0) {
int minLayer = ProcessList.VISIBLE_APP_LAYER_MAX;
for (int j = 0; j < activitiesSize; j++) {
final ActivityRecord r = app.activities.get(j);
if (r.app != app) {
Log.e(TAG, "Found activity " + r + " in proc activity list using " + r.app
+ " instead of expected " + app);
if (r.app == null || (r.app.uid == app.uid)) {
// Only fix things up when they look sane
r.app = app;
} else {
continue;
}
}
if (r.visible) {
// App has a visible activity; only upgrade adjustment.
if (adj > ProcessList.VISIBLE_APP_ADJ) {
adj = ProcessList.VISIBLE_APP_ADJ;
app.adjType = "vis-activity";
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Raise to vis-activity: " + app);
}
if (procState > PROCESS_STATE_CUR_TOP) {
procState = PROCESS_STATE_CUR_TOP;
app.adjType = "vis-activity";
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Raise to vis-activity: " + app);
}
schedGroup = ProcessList.SCHED_GROUP_DEFAULT;
app.cached = false;
app.empty = false;
foregroundActivities = true;
final TaskRecord task = r.getTask();
if (task != null && minLayer > 0) {
final int layer = task.mLayerRank;
if (layer >= 0 && minLayer > layer) {
minLayer = layer;
}
}
break;
} else if (r.state == ActivityState.PAUSING || r.state == ActivityState.PAUSED) {
if (adj > ProcessList.PERCEPTIBLE_APP_ADJ) {
adj = ProcessList.PERCEPTIBLE_APP_ADJ;
app.adjType = "pause-activity";
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Raise to pause-activity: " + app);
}
if (procState > PROCESS_STATE_CUR_TOP) {
procState = PROCESS_STATE_CUR_TOP;
app.adjType = "pause-activity";
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Raise to pause-activity: " + app);
}
schedGroup = ProcessList.SCHED_GROUP_DEFAULT;
app.cached = false;
app.empty = false;
foregroundActivities = true;
} else if (r.state == ActivityState.STOPPING) {
if (adj > ProcessList.PERCEPTIBLE_APP_ADJ) {
adj = ProcessList.PERCEPTIBLE_APP_ADJ;
app.adjType = "stop-activity";
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Raise to stop-activity: " + app);
}
// For the process state, we will at this point consider the
// process to be cached. It will be cached either as an activity
// or empty depending on whether the activity is finishing. We do
// this so that we can treat the process as cached for purposes of
// memory trimming (determing current memory level, trim command to
// send to process) since there can be an arbitrary number of stopping
// processes and they should soon all go into the cached state.
if (!r.finishing) {
if (procState > ActivityManager.PROCESS_STATE_LAST_ACTIVITY) {
procState = ActivityManager.PROCESS_STATE_LAST_ACTIVITY;
app.adjType = "stop-activity";
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Raise to stop-activity: " + app);
}
}
app.cached = false;
app.empty = false;
foregroundActivities = true;
} else {
if (procState > ActivityManager.PROCESS_STATE_CACHED_ACTIVITY) {
procState = ActivityManager.PROCESS_STATE_CACHED_ACTIVITY;
app.adjType = "cch-act";
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Raise to cached activity: " + app);
}
}
}
if (adj == ProcessList.VISIBLE_APP_ADJ) {
adj += minLayer;
}
}
if (adj > ProcessList.PERCEPTIBLE_APP_ADJ
|| procState > ActivityManager.PROCESS_STATE_FOREGROUND_SERVICE) {
if (app.foregroundServices) {
// The user is aware of this app, so make it visible.
adj = ProcessList.PERCEPTIBLE_APP_ADJ;
procState = ActivityManager.PROCESS_STATE_FOREGROUND_SERVICE;
app.cached = false;
app.adjType = "fg-service";
schedGroup = ProcessList.SCHED_GROUP_DEFAULT;
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Raise to fg service: " + app);
} else if (app.hasOverlayUi) {
// The process is display an overlay UI.
adj = ProcessList.PERCEPTIBLE_APP_ADJ;
procState = ActivityManager.PROCESS_STATE_IMPORTANT_FOREGROUND;
app.cached = false;
app.adjType = "has-overlay-ui";
schedGroup = ProcessList.SCHED_GROUP_DEFAULT;
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Raise to overlay ui: " + app);
}
}
if (adj > ProcessList.PERCEPTIBLE_APP_ADJ
|| procState > ActivityManager.PROCESS_STATE_TRANSIENT_BACKGROUND) {
if (app.forcingToImportant != null) {
// This is currently used for toasts... they are not interactive, and
// we don't want them to cause the app to become fully foreground (and
// thus out of background check), so we yes the best background level we can.
adj = ProcessList.PERCEPTIBLE_APP_ADJ;
procState = ActivityManager.PROCESS_STATE_TRANSIENT_BACKGROUND;
app.cached = false;
app.adjType = "force-imp";
app.adjSource = app.forcingToImportant;
schedGroup = ProcessList.SCHED_GROUP_DEFAULT;
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Raise to force imp: " + app);
}
}
if (app == mHeavyWeightProcess) {
if (adj > ProcessList.HEAVY_WEIGHT_APP_ADJ) {
// We don't want to kill the current heavy-weight process.
adj = ProcessList.HEAVY_WEIGHT_APP_ADJ;
schedGroup = ProcessList.SCHED_GROUP_BACKGROUND;
app.cached = false;
app.adjType = "heavy";
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Raise to heavy: " + app);
}
if (procState > ActivityManager.PROCESS_STATE_HEAVY_WEIGHT) {
procState = ActivityManager.PROCESS_STATE_HEAVY_WEIGHT;
app.adjType = "heavy";
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Raise to heavy: " + app);
}
}
if (app == mHomeProcess) {
if (adj > ProcessList.HOME_APP_ADJ) {
// This process is hosting what we currently consider to be the
// home app, so we don't want to let it go into the background.
adj = ProcessList.HOME_APP_ADJ;
schedGroup = ProcessList.SCHED_GROUP_BACKGROUND;
app.cached = false;
app.adjType = "home";
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Raise to home: " + app);
}
if (procState > ActivityManager.PROCESS_STATE_HOME) {
procState = ActivityManager.PROCESS_STATE_HOME;
app.adjType = "home";
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Raise to home: " + app);
}
}
if (app == mPreviousProcess && app.activities.size() > 0) {
if (adj > ProcessList.PREVIOUS_APP_ADJ) {
// This was the previous process that showed UI to the user.
// We want to try to keep it around more aggressively, to give
// a good experience around switching between two apps.
adj = ProcessList.PREVIOUS_APP_ADJ;
schedGroup = ProcessList.SCHED_GROUP_BACKGROUND;
app.cached = false;
app.adjType = "previous";
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Raise to prev: " + app);
}
if (procState > ActivityManager.PROCESS_STATE_LAST_ACTIVITY) {
procState = ActivityManager.PROCESS_STATE_LAST_ACTIVITY;
app.adjType = "previous";
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Raise to prev: " + app);
}
}
if (false) Slog.i(TAG, "OOM " + app + ": initial adj=" + adj
+ " reason=" + app.adjType);
// By default, we use the computed adjustment. It may be changed if
// there are applications dependent on our services or providers, but
// this gives us a baseline and makes sure we don't get into an
// infinite recursion.
app.adjSeq = mAdjSeq;
app.curRawAdj = adj;
app.hasStartedServices = false;
if (mBackupTarget != null && app == mBackupTarget.app) {
// If possible we want to avoid killing apps while they're being backed up
if (adj > ProcessList.BACKUP_APP_ADJ) {
if (DEBUG_BACKUP) Slog.v(TAG_BACKUP, "oom BACKUP_APP_ADJ for " + app);
adj = ProcessList.BACKUP_APP_ADJ;
if (procState > ActivityManager.PROCESS_STATE_TRANSIENT_BACKGROUND) {
procState = ActivityManager.PROCESS_STATE_TRANSIENT_BACKGROUND;
}
app.adjType = "backup";
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Raise to backup: " + app);
app.cached = false;
}
if (procState > ActivityManager.PROCESS_STATE_BACKUP) {
procState = ActivityManager.PROCESS_STATE_BACKUP;
app.adjType = "backup";
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Raise to backup: " + app);
}
}
boolean mayBeTop = false;
String mayBeTopType = null;
Object mayBeTopSource = null;
Object mayBeTopTarget = null;
for (int is = app.services.size()-1;
is >= 0 && (adj > ProcessList.FOREGROUND_APP_ADJ
|| schedGroup == ProcessList.SCHED_GROUP_BACKGROUND
|| procState > ActivityManager.PROCESS_STATE_TOP);
is--) {
ServiceRecord s = app.services.valueAt(is);
if (s.startRequested) {
app.hasStartedServices = true;
if (procState > ActivityManager.PROCESS_STATE_SERVICE) {
procState = ActivityManager.PROCESS_STATE_SERVICE;
app.adjType = "started-services";
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Raise to started service: " + app);
}
if (app.hasShownUi && app != mHomeProcess) {
// If this process has shown some UI, let it immediately
// go to the LRU list because it may be pretty heavy with
// UI stuff. We'll tag it with a label just to help
// debug and understand what is going on.
if (adj > ProcessList.SERVICE_ADJ) {
app.adjType = "cch-started-ui-services";
}
} else {
if (now < (s.lastActivity + mConstants.MAX_SERVICE_INACTIVITY)) {
// This service has seen some activity within
// recent memory, so we will keep its process ahead
// of the background processes.
if (adj > ProcessList.SERVICE_ADJ) {
adj = ProcessList.SERVICE_ADJ;
app.adjType = "started-services";
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Raise to started service: " + app);
app.cached = false;
}
}
// If we have let the service slide into the background
// state, still have some text describing what it is doing
// even though the service no longer has an impact.
if (adj > ProcessList.SERVICE_ADJ) {
app.adjType = "cch-started-services";
}
}
}
for (int conni = s.connections.size()-1;
conni >= 0 && (adj > ProcessList.FOREGROUND_APP_ADJ
|| schedGroup == ProcessList.SCHED_GROUP_BACKGROUND
|| procState > ActivityManager.PROCESS_STATE_TOP);
conni--) {
ArrayList<ConnectionRecord> clist = s.connections.valueAt(conni);
for (int i = 0;
i < clist.size() && (adj > ProcessList.FOREGROUND_APP_ADJ
|| schedGroup == ProcessList.SCHED_GROUP_BACKGROUND
|| procState > ActivityManager.PROCESS_STATE_TOP);
i++) {
// XXX should compute this based on the max of
// all connected clients.
ConnectionRecord cr = clist.get(i);
if (cr.binding.client == app) {
// Binding to ourself is not interesting.
continue;
}
if ((cr.flags&Context.BIND_WAIVE_PRIORITY) == 0) {
ProcessRecord client = cr.binding.client;
int clientAdj = computeOomAdjLocked(client, cachedAdj,
TOP_APP, doingAll, now);
int clientProcState = client.curProcState;
if (clientProcState >= ActivityManager.PROCESS_STATE_CACHED_ACTIVITY) {
// If the other app is cached for any reason, for purposes here
// we are going to consider it empty. The specific cached state
// doesn't propagate except under certain conditions.
clientProcState = ActivityManager.PROCESS_STATE_CACHED_EMPTY;
}
String adjType = null;
if ((cr.flags&Context.BIND_ALLOW_OOM_MANAGEMENT) != 0) {
// Not doing bind OOM management, so treat
// this guy more like a started service.
if (app.hasShownUi && app != mHomeProcess) {
// If this process has shown some UI, let it immediately
// go to the LRU list because it may be pretty heavy with
// UI stuff. We'll tag it with a label just to help
// debug and understand what is going on.
if (adj > clientAdj) {
adjType = "cch-bound-ui-services";
}
app.cached = false;
clientAdj = adj;
clientProcState = procState;
} else {
if (now >= (s.lastActivity + mConstants.MAX_SERVICE_INACTIVITY)) {
// This service has not seen activity within
// recent memory, so allow it to drop to the
// LRU list if there is no other reason to keep
// it around. We'll also tag it with a label just
// to help debug and undertand what is going on.
if (adj > clientAdj) {
adjType = "cch-bound-services";
}
clientAdj = adj;
}
}
}
if (adj > clientAdj) {
// If this process has recently shown UI, and
// the process that is binding to it is less
// important than being visible, then we don't
// care about the binding as much as we care
// about letting this process get into the LRU
// list to be killed and restarted if needed for
// memory.
if (app.hasShownUi && app != mHomeProcess
&& clientAdj > ProcessList.PERCEPTIBLE_APP_ADJ) {
if (adj >= ProcessList.CACHED_APP_MIN_ADJ) {
adjType = "cch-bound-ui-services";
}
} else {
int newAdj;
if ((cr.flags&(Context.BIND_ABOVE_CLIENT
|Context.BIND_IMPORTANT)) != 0) {
newAdj = clientAdj >= ProcessList.PERSISTENT_SERVICE_ADJ
? clientAdj : ProcessList.PERSISTENT_SERVICE_ADJ;
} else if ((cr.flags&Context.BIND_NOT_VISIBLE) != 0
&& clientAdj < ProcessList.PERCEPTIBLE_APP_ADJ
&& adj > ProcessList.PERCEPTIBLE_APP_ADJ) {
newAdj = ProcessList.PERCEPTIBLE_APP_ADJ;
} else if (clientAdj >= ProcessList.PERCEPTIBLE_APP_ADJ) {
newAdj = clientAdj;
} else {
if (adj > ProcessList.VISIBLE_APP_ADJ) {
newAdj = Math.max(clientAdj, ProcessList.VISIBLE_APP_ADJ);
} else {
newAdj = adj;
}
}
if (!client.cached) {
app.cached = false;
}
if (adj > newAdj) {
adj = newAdj;
adjType = "service";
}
}
}
if ((cr.flags & (Context.BIND_NOT_FOREGROUND
| Context.BIND_IMPORTANT_BACKGROUND)) == 0) {
// This will treat important bound services identically to
// the top app, which may behave differently than generic
// foreground work.
if (client.curSchedGroup > schedGroup) {
if ((cr.flags&Context.BIND_IMPORTANT) != 0) {
schedGroup = client.curSchedGroup;
} else {
schedGroup = ProcessList.SCHED_GROUP_DEFAULT;
}
}
if (clientProcState <= ActivityManager.PROCESS_STATE_TOP) {
if (clientProcState == ActivityManager.PROCESS_STATE_TOP) {
// Special handling of clients who are in the top state.
// We *may* want to consider this process to be in the
// top state as well, but only if there is not another
// reason for it to be running. Being on the top is a
// special state, meaning you are specifically running
// for the current top app. If the process is already
// running in the background for some other reason, it
// is more important to continue considering it to be
// in the background state.
mayBeTop = true;
mayBeTopType = "service";
mayBeTopSource = cr.binding.client;
mayBeTopTarget = s.name;
clientProcState = ActivityManager.PROCESS_STATE_CACHED_EMPTY;
} else {
// Special handling for above-top states (persistent
// processes). These should not bring the current process
// into the top state, since they are not on top. Instead
// give them the best state after that.
if ((cr.flags&Context.BIND_FOREGROUND_SERVICE) != 0) {
clientProcState =
ActivityManager.PROCESS_STATE_BOUND_FOREGROUND_SERVICE;
} else if (mWakefulness
== PowerManagerInternal.WAKEFULNESS_AWAKE &&
(cr.flags&Context.BIND_FOREGROUND_SERVICE_WHILE_AWAKE)
!= 0) {
clientProcState =
ActivityManager.PROCESS_STATE_BOUND_FOREGROUND_SERVICE;
} else {
clientProcState =
ActivityManager.PROCESS_STATE_IMPORTANT_FOREGROUND;
}
}
}
} else if ((cr.flags & Context.BIND_IMPORTANT_BACKGROUND) == 0) {
if (clientProcState <
ActivityManager.PROCESS_STATE_TRANSIENT_BACKGROUND) {
clientProcState =
ActivityManager.PROCESS_STATE_TRANSIENT_BACKGROUND;
}
} else {
if (clientProcState <
ActivityManager.PROCESS_STATE_IMPORTANT_BACKGROUND) {
clientProcState =
ActivityManager.PROCESS_STATE_IMPORTANT_BACKGROUND;
}
}
if (procState > clientProcState) {
procState = clientProcState;
if (adjType == null) {
adjType = "service";
}
}
if (procState < ActivityManager.PROCESS_STATE_IMPORTANT_BACKGROUND
&& (cr.flags&Context.BIND_SHOWING_UI) != 0) {
app.pendingUiClean = true;
}
if (adjType != null) {
app.adjType = adjType;
app.adjTypeCode = ActivityManager.RunningAppProcessInfo
.REASON_SERVICE_IN_USE;
app.adjSource = cr.binding.client;
app.adjSourceProcState = clientProcState;
app.adjTarget = s.name;
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Raise to " + adjType
+ ": " + app + ", due to " + cr.binding.client
+ " adj=" + adj + " procState=" + procState);
}
}
if ((cr.flags&Context.BIND_TREAT_LIKE_ACTIVITY) != 0) {
app.treatLikeActivity = true;
}
final ActivityRecord a = cr.activity;
if ((cr.flags&Context.BIND_ADJUST_WITH_ACTIVITY) != 0) {
if (a != null && adj > ProcessList.FOREGROUND_APP_ADJ &&
(a.visible || a.state == ActivityState.RESUMED ||
a.state == ActivityState.PAUSING)) {
adj = ProcessList.FOREGROUND_APP_ADJ;
if ((cr.flags&Context.BIND_NOT_FOREGROUND) == 0) {
if ((cr.flags&Context.BIND_IMPORTANT) != 0) {
schedGroup = ProcessList.SCHED_GROUP_TOP_APP_BOUND;
} else {
schedGroup = ProcessList.SCHED_GROUP_DEFAULT;
}
}
app.cached = false;
app.adjType = "service";
app.adjTypeCode = ActivityManager.RunningAppProcessInfo
.REASON_SERVICE_IN_USE;
app.adjSource = a;
app.adjSourceProcState = procState;
app.adjTarget = s.name;
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Raise to service w/activity: "
+ app);
}
}
}
}
}
for (int provi = app.pubProviders.size()-1;
provi >= 0 && (adj > ProcessList.FOREGROUND_APP_ADJ
|| schedGroup == ProcessList.SCHED_GROUP_BACKGROUND
|| procState > ActivityManager.PROCESS_STATE_TOP);
provi--) {
ContentProviderRecord cpr = app.pubProviders.valueAt(provi);
for (int i = cpr.connections.size()-1;
i >= 0 && (adj > ProcessList.FOREGROUND_APP_ADJ
|| schedGroup == ProcessList.SCHED_GROUP_BACKGROUND
|| procState > ActivityManager.PROCESS_STATE_TOP);
i--) {
ContentProviderConnection conn = cpr.connections.get(i);
ProcessRecord client = conn.client;
if (client == app) {
// Being our own client is not interesting.
continue;
}
int clientAdj = computeOomAdjLocked(client, cachedAdj, TOP_APP, doingAll, now);
int clientProcState = client.curProcState;
if (clientProcState >= ActivityManager.PROCESS_STATE_CACHED_ACTIVITY) {
// If the other app is cached for any reason, for purposes here
// we are going to consider it empty.
clientProcState = ActivityManager.PROCESS_STATE_CACHED_EMPTY;
}
String adjType = null;
if (adj > clientAdj) {
if (app.hasShownUi && app != mHomeProcess
&& clientAdj > ProcessList.PERCEPTIBLE_APP_ADJ) {
adjType = "cch-ui-provider";
} else {
adj = clientAdj > ProcessList.FOREGROUND_APP_ADJ
? clientAdj : ProcessList.FOREGROUND_APP_ADJ;
adjType = "provider";
}
app.cached &= client.cached;
}
if (clientProcState <= ActivityManager.PROCESS_STATE_TOP) {
if (clientProcState == ActivityManager.PROCESS_STATE_TOP) {
// Special handling of clients who are in the top state.
// We *may* want to consider this process to be in the
// top state as well, but only if there is not another
// reason for it to be running. Being on the top is a
// special state, meaning you are specifically running
// for the current top app. If the process is already
// running in the background for some other reason, it
// is more important to continue considering it to be
// in the background state.
mayBeTop = true;
clientProcState = ActivityManager.PROCESS_STATE_CACHED_EMPTY;
mayBeTopType = adjType = "provider-top";
mayBeTopSource = client;
mayBeTopTarget = cpr.name;
} else {
// Special handling for above-top states (persistent
// processes). These should not bring the current process
// into the top state, since they are not on top. Instead
// give them the best state after that.
clientProcState =
ActivityManager.PROCESS_STATE_BOUND_FOREGROUND_SERVICE;
if (adjType == null) {
adjType = "provider";
}
}
}
if (procState > clientProcState) {
procState = clientProcState;
}
if (client.curSchedGroup > schedGroup) {
schedGroup = ProcessList.SCHED_GROUP_DEFAULT;
}
if (adjType != null) {
app.adjType = adjType;
app.adjTypeCode = ActivityManager.RunningAppProcessInfo
.REASON_PROVIDER_IN_USE;
app.adjSource = client;
app.adjSourceProcState = clientProcState;
app.adjTarget = cpr.name;
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Raise to " + adjType
+ ": " + app + ", due to " + client
+ " adj=" + adj + " procState=" + procState);
}
}
// If the provider has external (non-framework) process
// dependencies, ensure that its adjustment is at least
// FOREGROUND_APP_ADJ.
if (cpr.hasExternalProcessHandles()) {
if (adj > ProcessList.FOREGROUND_APP_ADJ) {
adj = ProcessList.FOREGROUND_APP_ADJ;
schedGroup = ProcessList.SCHED_GROUP_DEFAULT;
app.cached = false;
app.adjType = "ext-provider";
app.adjTarget = cpr.name;
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Raise to external provider: " + app);
}
if (procState > ActivityManager.PROCESS_STATE_IMPORTANT_FOREGROUND) {
procState = ActivityManager.PROCESS_STATE_IMPORTANT_FOREGROUND;
}
}
}
if (app.lastProviderTime > 0 &&
(app.lastProviderTime+mConstants.CONTENT_PROVIDER_RETAIN_TIME) > now) {
if (adj > ProcessList.PREVIOUS_APP_ADJ) {
adj = ProcessList.PREVIOUS_APP_ADJ;
schedGroup = ProcessList.SCHED_GROUP_BACKGROUND;
app.cached = false;
app.adjType = "recent-provider";
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Raise to recent provider: " + app);
}
if (procState > ActivityManager.PROCESS_STATE_LAST_ACTIVITY) {
procState = ActivityManager.PROCESS_STATE_LAST_ACTIVITY;
app.adjType = "recent-provider";
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "Raise to recent provider: " + app);
}
}
if (mayBeTop && procState > ActivityManager.PROCESS_STATE_TOP) {
// A client of one of our services or providers is in the top state. We
// *may* want to be in the top state, but not if we are already running in
// the background for some other reason. For the decision here, we are going
// to pick out a few specific states that we want to remain in when a client
// is top (states that tend to be longer-term) and otherwise allow it to go
// to the top state.
switch (procState) {
case ActivityManager.PROCESS_STATE_BOUND_FOREGROUND_SERVICE:
// Something else is keeping it at this level, just leave it.
break;
case ActivityManager.PROCESS_STATE_IMPORTANT_FOREGROUND:
case ActivityManager.PROCESS_STATE_IMPORTANT_BACKGROUND:
case ActivityManager.PROCESS_STATE_TRANSIENT_BACKGROUND:
case ActivityManager.PROCESS_STATE_SERVICE:
// These all are longer-term states, so pull them up to the top
// of the background states, but not all the way to the top state.
procState = ActivityManager.PROCESS_STATE_BOUND_FOREGROUND_SERVICE;
app.adjType = mayBeTopType;
app.adjSource = mayBeTopSource;
app.adjTarget = mayBeTopTarget;
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "May be top raise to " + mayBeTopType
+ ": " + app + ", due to " + mayBeTopSource
+ " adj=" + adj + " procState=" + procState);
break;
default:
// Otherwise, top is a better choice, so take it.
procState = ActivityManager.PROCESS_STATE_TOP;
app.adjType = mayBeTopType;
app.adjSource = mayBeTopSource;
app.adjTarget = mayBeTopTarget;
if (DEBUG_OOM_ADJ_REASON) Slog.d(TAG, "May be top raise to " + mayBeTopType
+ ": " + app + ", due to " + mayBeTopSource
+ " adj=" + adj + " procState=" + procState);
break;
}
}
if (procState >= ActivityManager.PROCESS_STATE_CACHED_EMPTY) {
if (app.hasClientActivities) {
// This is a cached process, but with client activities. Mark it so.
procState = ActivityManager.PROCESS_STATE_CACHED_ACTIVITY_CLIENT;
app.adjType = "cch-client-act";
} else if (app.treatLikeActivity) {
// This is a cached process, but somebody wants us to treat it like it has
// an activity, okay!
procState = ActivityManager.PROCESS_STATE_CACHED_ACTIVITY;
app.adjType = "cch-as-act";
}
}
if (adj == ProcessList.SERVICE_ADJ) {
if (doingAll) {
app.serviceb = mNewNumAServiceProcs > (mNumServiceProcs/3);
mNewNumServiceProcs++;
//Slog.i(TAG, "ADJ " + app + " serviceb=" + app.serviceb);
if (!app.serviceb) {
// This service isn't far enough down on the LRU list to
// normally be a B service, but if we are low on RAM and it
// is large we want to force it down since we would prefer to
// keep launcher over it.
if (mLastMemoryLevel > ProcessStats.ADJ_MEM_FACTOR_NORMAL
&& app.lastPss >= mProcessList.getCachedRestoreThresholdKb()) {
app.serviceHighRam = true;
app.serviceb = true;
//Slog.i(TAG, "ADJ " + app + " high ram!");
} else {
mNewNumAServiceProcs++;
//Slog.i(TAG, "ADJ " + app + " not high ram!");
}
} else {
app.serviceHighRam = false;
}
}
if (app.serviceb) {
adj = ProcessList.SERVICE_B_ADJ;
}
}
app.curRawAdj = adj;
//Slog.i(TAG, "OOM ADJ " + app + ": pid=" + app.pid +
// " adj=" + adj + " curAdj=" + app.curAdj + " maxAdj=" + app.maxAdj);
if (adj > app.maxAdj) {
adj = app.maxAdj;
if (app.maxAdj <= ProcessList.PERCEPTIBLE_APP_ADJ) {
schedGroup = ProcessList.SCHED_GROUP_DEFAULT;
}
}
// Do final modification to adj. Everything we do between here and applying
// the final setAdj must be done in this function, because we will also use
// it when computing the final cached adj later. Note that we don't need to
// worry about this for max adj above, since max adj will always be used to
// keep it out of the cached vaues.
app.curAdj = app.modifyRawOomAdj(adj);
app.curSchedGroup = schedGroup;
app.curProcState = procState;
app.foregroundActivities = foregroundActivities;
return app.curRawAdj;
}
/**
* Record new PSS sample for a process.
*/
void recordPssSampleLocked(ProcessRecord proc, int procState, long pss, long uss, long swapPss,
long now) {
EventLogTags.writeAmPss(proc.pid, proc.uid, proc.processName, pss * 1024, uss * 1024,
swapPss * 1024);
proc.lastPssTime = now;
proc.baseProcessTracker.addPss(pss, uss, true, proc.pkgList);
if (DEBUG_PSS) Slog.d(TAG_PSS,
"PSS of " + proc.toShortString() + ": " + pss + " lastPss=" + proc.lastPss
+ " state=" + ProcessList.makeProcStateString(procState));
if (proc.initialIdlePss == 0) {
proc.initialIdlePss = pss;
}
proc.lastPss = pss;
proc.lastSwapPss = swapPss;
if (procState >= ActivityManager.PROCESS_STATE_HOME) {
proc.lastCachedPss = pss;
proc.lastCachedSwapPss = swapPss;
}
final SparseArray<Pair<Long, String>> watchUids
= mMemWatchProcesses.getMap().get(proc.processName);
Long check = null;
if (watchUids != null) {
Pair<Long, String> val = watchUids.get(proc.uid);
if (val == null) {
val = watchUids.get(0);
}
if (val != null) {
check = val.first;
}
}
if (check != null) {
if ((pss * 1024) >= check && proc.thread != null && mMemWatchDumpProcName == null) {
boolean isDebuggable = "1".equals(SystemProperties.get(SYSTEM_DEBUGGABLE, "0"));
if (!isDebuggable) {
if ((proc.info.flags&ApplicationInfo.FLAG_DEBUGGABLE) != 0) {
isDebuggable = true;
}
}
if (isDebuggable) {
Slog.w(TAG, "Process " + proc + " exceeded pss limit " + check + "; reporting");
final ProcessRecord myProc = proc;
final File heapdumpFile = DumpHeapProvider.getJavaFile();
mMemWatchDumpProcName = proc.processName;
mMemWatchDumpFile = heapdumpFile.toString();
mMemWatchDumpPid = proc.pid;
mMemWatchDumpUid = proc.uid;
BackgroundThread.getHandler().post(new Runnable() {
@Override
public void run() {
revokeUriPermission(ActivityThread.currentActivityThread()
.getApplicationThread(),
null, DumpHeapActivity.JAVA_URI,
Intent.FLAG_GRANT_READ_URI_PERMISSION
| Intent.FLAG_GRANT_WRITE_URI_PERMISSION,
UserHandle.myUserId());
ParcelFileDescriptor fd = null;
try {
heapdumpFile.delete();
fd = ParcelFileDescriptor.open(heapdumpFile,
ParcelFileDescriptor.MODE_CREATE |
ParcelFileDescriptor.MODE_TRUNCATE |
ParcelFileDescriptor.MODE_WRITE_ONLY |
ParcelFileDescriptor.MODE_APPEND);
IApplicationThread thread = myProc.thread;
if (thread != null) {
try {
if (DEBUG_PSS) Slog.d(TAG_PSS,
"Requesting dump heap from "
+ myProc + " to " + heapdumpFile);
thread.dumpHeap(/* managed= */ true,
/* mallocInfo= */ false, /* runGc= */ false,
heapdumpFile.toString(), fd);
} catch (RemoteException e) {
}
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} finally {
if (fd != null) {
try {
fd.close();
} catch (IOException e) {
}
}
}
}
});
} else {
Slog.w(TAG, "Process " + proc + " exceeded pss limit " + check
+ ", but debugging not enabled");
}
}
}
}
/**
* Schedule PSS collection of a process.
*/
void requestPssLocked(ProcessRecord proc, int procState) {
if (mPendingPssProcesses.contains(proc)) {
return;
}
if (mPendingPssProcesses.size() == 0) {
mBgHandler.sendEmptyMessage(COLLECT_PSS_BG_MSG);
}
if (DEBUG_PSS) Slog.d(TAG_PSS, "Requesting PSS of: " + proc);
proc.pssProcState = procState;
mPendingPssProcesses.add(proc);
}
/**
* Schedule PSS collection of all processes.
*/
void requestPssAllProcsLocked(long now, boolean always, boolean memLowered) {
if (!always) {
if (now < (mLastFullPssTime +
(memLowered ? mConstants.FULL_PSS_LOWERED_INTERVAL
: mConstants.FULL_PSS_MIN_INTERVAL))) {
return;
}
}
if (DEBUG_PSS) Slog.d(TAG_PSS, "Requesting PSS of all procs! memLowered=" + memLowered);
mLastFullPssTime = now;
mFullPssPending = true;
mPendingPssProcesses.ensureCapacity(mLruProcesses.size());
mPendingPssProcesses.clear();
for (int i = mLruProcesses.size() - 1; i >= 0; i--) {
ProcessRecord app = mLruProcesses.get(i);
if (app.thread == null
|| app.curProcState == ActivityManager.PROCESS_STATE_NONEXISTENT) {
continue;
}
if (memLowered || now > (app.lastStateTime+ProcessList.PSS_ALL_INTERVAL)) {
app.pssProcState = app.setProcState;
app.nextPssTime = ProcessList.computeNextPssTime(app.curProcState, true,
mTestPssMode, isSleepingLocked(), now);
mPendingPssProcesses.add(app);
}
}
mBgHandler.sendEmptyMessage(COLLECT_PSS_BG_MSG);
}
public void setTestPssMode(boolean enabled) {
synchronized (this) {
mTestPssMode = enabled;
if (enabled) {
// Whenever we enable the mode, we want to take a snapshot all of current
// process mem use.
requestPssAllProcsLocked(SystemClock.uptimeMillis(), true, true);
}
}
}
/**
* Ask a given process to GC right now.
*/
final void performAppGcLocked(ProcessRecord app) {
try {
app.lastRequestedGc = SystemClock.uptimeMillis();
if (app.thread != null) {
if (app.reportLowMemory) {
app.reportLowMemory = false;
app.thread.scheduleLowMemory();
} else {
app.thread.processInBackground();
}
}
} catch (Exception e) {
// whatever.
}
}
/**
* Returns true if things are idle enough to perform GCs.
*/
private final boolean canGcNowLocked() {
boolean processingBroadcasts = false;
for (BroadcastQueue q : mBroadcastQueues) {
if (q.mParallelBroadcasts.size() != 0 || q.mOrderedBroadcasts.size() != 0) {
processingBroadcasts = true;
}
}
return !processingBroadcasts
&& (isSleepingLocked() || mStackSupervisor.allResumedActivitiesIdle());
}
/**
* Perform GCs on all processes that are waiting for it, but only
* if things are idle.
*/
final void performAppGcsLocked() {
final int N = mProcessesToGc.size();
if (N <= 0) {
return;
}
if (canGcNowLocked()) {
while (mProcessesToGc.size() > 0) {
ProcessRecord proc = mProcessesToGc.remove(0);
if (proc.curRawAdj > ProcessList.PERCEPTIBLE_APP_ADJ || proc.reportLowMemory) {
if ((proc.lastRequestedGc+mConstants.GC_MIN_INTERVAL)
<= SystemClock.uptimeMillis()) {
// To avoid spamming the system, we will GC processes one
// at a time, waiting a few seconds between each.
performAppGcLocked(proc);
scheduleAppGcsLocked();
return;
} else {
// It hasn't been long enough since we last GCed this
// process... put it in the list to wait for its time.
addProcessToGcListLocked(proc);
break;
}
}
}
scheduleAppGcsLocked();
}
}
/**
* If all looks good, perform GCs on all processes waiting for them.
*/
final void performAppGcsIfAppropriateLocked() {
if (canGcNowLocked()) {
performAppGcsLocked();
return;
}
// Still not idle, wait some more.
scheduleAppGcsLocked();
}
/**
* Schedule the execution of all pending app GCs.
*/
final void scheduleAppGcsLocked() {
mHandler.removeMessages(GC_BACKGROUND_PROCESSES_MSG);
if (mProcessesToGc.size() > 0) {
// Schedule a GC for the time to the next process.
ProcessRecord proc = mProcessesToGc.get(0);
Message msg = mHandler.obtainMessage(GC_BACKGROUND_PROCESSES_MSG);
long when = proc.lastRequestedGc + mConstants.GC_MIN_INTERVAL;
long now = SystemClock.uptimeMillis();
if (when < (now+mConstants.GC_TIMEOUT)) {
when = now + mConstants.GC_TIMEOUT;
}
mHandler.sendMessageAtTime(msg, when);
}
}
/**
* Add a process to the array of processes waiting to be GCed. Keeps the
* list in sorted order by the last GC time. The process can't already be
* on the list.
*/
final void addProcessToGcListLocked(ProcessRecord proc) {
boolean added = false;
for (int i=mProcessesToGc.size()-1; i>=0; i--) {
if (mProcessesToGc.get(i).lastRequestedGc <
proc.lastRequestedGc) {
added = true;
mProcessesToGc.add(i+1, proc);
break;
}
}
if (!added) {
mProcessesToGc.add(0, proc);
}
}
/**
* Set up to ask a process to GC itself. This will either do it
* immediately, or put it on the list of processes to gc the next
* time things are idle.
*/
final void scheduleAppGcLocked(ProcessRecord app) {
long now = SystemClock.uptimeMillis();
if ((app.lastRequestedGc+mConstants.GC_MIN_INTERVAL) > now) {
return;
}
if (!mProcessesToGc.contains(app)) {
addProcessToGcListLocked(app);
scheduleAppGcsLocked();
}
}
final void checkExcessivePowerUsageLocked() {
updateCpuStatsNow();
BatteryStatsImpl stats = mBatteryStatsService.getActiveStatistics();
boolean doCpuKills = true;
if (mLastPowerCheckUptime == 0) {
doCpuKills = false;
}
final long curUptime = SystemClock.uptimeMillis();
final long uptimeSince = curUptime - mLastPowerCheckUptime;
mLastPowerCheckUptime = curUptime;
int i = mLruProcesses.size();
while (i > 0) {
i--;
ProcessRecord app = mLruProcesses.get(i);
if (app.setProcState >= ActivityManager.PROCESS_STATE_HOME) {
if (app.lastCpuTime <= 0) {
continue;
}
long cputimeUsed = app.curCpuTime - app.lastCpuTime;
if (DEBUG_POWER) {
StringBuilder sb = new StringBuilder(128);
sb.append("CPU for ");
app.toShortString(sb);
sb.append(": over ");
TimeUtils.formatDuration(uptimeSince, sb);
sb.append(" used ");
TimeUtils.formatDuration(cputimeUsed, sb);
sb.append(" (");
sb.append((cputimeUsed*100)/uptimeSince);
sb.append("%)");
Slog.i(TAG_POWER, sb.toString());
}
// If the process has used too much CPU over the last duration, the
// user probably doesn't want this, so kill!
if (doCpuKills && uptimeSince > 0) {
// What is the limit for this process?
int cpuLimit;
long checkDur = curUptime - app.whenUnimportant;
if (checkDur <= mConstants.POWER_CHECK_INTERVAL) {
cpuLimit = mConstants.POWER_CHECK_MAX_CPU_1;
} else if (checkDur <= (mConstants.POWER_CHECK_INTERVAL*2)
|| app.setProcState <= ActivityManager.PROCESS_STATE_HOME) {
cpuLimit = mConstants.POWER_CHECK_MAX_CPU_2;
} else if (checkDur <= (mConstants.POWER_CHECK_INTERVAL*3)) {
cpuLimit = mConstants.POWER_CHECK_MAX_CPU_3;
} else {
cpuLimit = mConstants.POWER_CHECK_MAX_CPU_4;
}
if (((cputimeUsed*100)/uptimeSince) >= cpuLimit) {
synchronized (stats) {
stats.reportExcessiveCpuLocked(app.info.uid, app.processName,
uptimeSince, cputimeUsed);
}
app.kill("excessive cpu " + cputimeUsed + " during " + uptimeSince
+ " dur=" + checkDur + " limit=" + cpuLimit, true);
app.baseProcessTracker.reportExcessiveCpu(app.pkgList);
}
}
app.lastCpuTime = app.curCpuTime;
}
}
}
private final boolean applyOomAdjLocked(ProcessRecord app, boolean doingAll, long now,
long nowElapsed) {
boolean success = true;
if (app.curRawAdj != app.setRawAdj) {
app.setRawAdj = app.curRawAdj;
}
int changes = 0;
if (app.curAdj != app.setAdj) {
ProcessList.setOomAdj(app.pid, app.uid, app.curAdj);
if (DEBUG_SWITCH || DEBUG_OOM_ADJ || mCurOomAdjUid == app.info.uid) {
String msg = "Set " + app.pid + " " + app.processName + " adj "
+ app.curAdj + ": " + app.adjType;
reportOomAdjMessageLocked(TAG_OOM_ADJ, msg);
}
app.setAdj = app.curAdj;
app.verifiedAdj = ProcessList.INVALID_ADJ;
}
if (app.setSchedGroup != app.curSchedGroup) {
int oldSchedGroup = app.setSchedGroup;
app.setSchedGroup = app.curSchedGroup;
if (DEBUG_SWITCH || DEBUG_OOM_ADJ || mCurOomAdjUid == app.uid) {
String msg = "Setting sched group of " + app.processName
+ " to " + app.curSchedGroup;
reportOomAdjMessageLocked(TAG_OOM_ADJ, msg);
}
if (app.waitingToKill != null && app.curReceivers.isEmpty()
&& app.setSchedGroup == ProcessList.SCHED_GROUP_BACKGROUND) {
app.kill(app.waitingToKill, true);
success = false;
} else {
int processGroup;
switch (app.curSchedGroup) {
case ProcessList.SCHED_GROUP_BACKGROUND:
processGroup = THREAD_GROUP_BG_NONINTERACTIVE;
break;
case ProcessList.SCHED_GROUP_TOP_APP:
case ProcessList.SCHED_GROUP_TOP_APP_BOUND:
processGroup = THREAD_GROUP_TOP_APP;
break;
default:
processGroup = THREAD_GROUP_DEFAULT;
break;
}
long oldId = Binder.clearCallingIdentity();
try {
setProcessGroup(app.pid, processGroup);
if (app.curSchedGroup == ProcessList.SCHED_GROUP_TOP_APP) {
// do nothing if we already switched to RT
if (oldSchedGroup != ProcessList.SCHED_GROUP_TOP_APP) {
mVrController.onTopProcChangedLocked(app);
if (mUseFifoUiScheduling) {
// Switch UI pipeline for app to SCHED_FIFO
app.savedPriority = Process.getThreadPriority(app.pid);
scheduleAsFifoPriority(app.pid, /* suppressLogs */true);
if (app.renderThreadTid != 0) {
scheduleAsFifoPriority(app.renderThreadTid,
/* suppressLogs */true);
if (DEBUG_OOM_ADJ) {
Slog.d("UI_FIFO", "Set RenderThread (TID " +
app.renderThreadTid + ") to FIFO");
}
} else {
if (DEBUG_OOM_ADJ) {
Slog.d("UI_FIFO", "Not setting RenderThread TID");
}
}
} else {
// Boost priority for top app UI and render threads
setThreadPriority(app.pid, TOP_APP_PRIORITY_BOOST);
if (app.renderThreadTid != 0) {
try {
setThreadPriority(app.renderThreadTid,
TOP_APP_PRIORITY_BOOST);
} catch (IllegalArgumentException e) {
// thread died, ignore
}
}
}
}
} else if (oldSchedGroup == ProcessList.SCHED_GROUP_TOP_APP &&
app.curSchedGroup != ProcessList.SCHED_GROUP_TOP_APP) {
mVrController.onTopProcChangedLocked(app);
if (mUseFifoUiScheduling) {
try {
// Reset UI pipeline to SCHED_OTHER
setThreadScheduler(app.pid, SCHED_OTHER, 0);
setThreadPriority(app.pid, app.savedPriority);
if (app.renderThreadTid != 0) {
setThreadScheduler(app.renderThreadTid,
SCHED_OTHER, 0);
setThreadPriority(app.renderThreadTid, -4);
}
} catch (IllegalArgumentException e) {
Slog.w(TAG,
"Failed to set scheduling policy, thread does not exist:\n"
+ e);
} catch (SecurityException e) {
Slog.w(TAG, "Failed to set scheduling policy, not allowed:\n" + e);
}
} else {
// Reset priority for top app UI and render threads
setThreadPriority(app.pid, 0);
if (app.renderThreadTid != 0) {
setThreadPriority(app.renderThreadTid, 0);
}
}
}
} catch (Exception e) {
if (false) {
Slog.w(TAG, "Failed setting process group of " + app.pid
+ " to " + app.curSchedGroup);
Slog.w(TAG, "at location", e);
}
} finally {
Binder.restoreCallingIdentity(oldId);
}
}
}
if (app.repForegroundActivities != app.foregroundActivities) {
app.repForegroundActivities = app.foregroundActivities;
changes |= ProcessChangeItem.CHANGE_ACTIVITIES;
}
if (app.repProcState != app.curProcState) {
app.repProcState = app.curProcState;
if (app.thread != null) {
try {
if (false) {
//RuntimeException h = new RuntimeException("here");
Slog.i(TAG, "Sending new process state " + app.repProcState
+ " to " + app /*, h*/);
}
app.thread.setProcessState(app.repProcState);
} catch (RemoteException e) {
}
}
}
if (app.setProcState == ActivityManager.PROCESS_STATE_NONEXISTENT
|| ProcessList.procStatesDifferForMem(app.curProcState, app.setProcState)) {
if (false && mTestPssMode && app.setProcState >= 0 && app.lastStateTime <= (now-200)) {
// Experimental code to more aggressively collect pss while
// running test... the problem is that this tends to collect
// the data right when a process is transitioning between process
// states, which well tend to give noisy data.
long start = SystemClock.uptimeMillis();
long pss = Debug.getPss(app.pid, mTmpLong, null);
recordPssSampleLocked(app, app.curProcState, pss, mTmpLong[0], mTmpLong[1], now);
mPendingPssProcesses.remove(app);
Slog.i(TAG, "Recorded pss for " + app + " state " + app.setProcState
+ " to " + app.curProcState + ": "
+ (SystemClock.uptimeMillis()-start) + "ms");
}
app.lastStateTime = now;
app.nextPssTime = ProcessList.computeNextPssTime(app.curProcState, true,
mTestPssMode, isSleepingLocked(), now);
if (DEBUG_PSS) Slog.d(TAG_PSS, "Process state change from "
+ ProcessList.makeProcStateString(app.setProcState) + " to "
+ ProcessList.makeProcStateString(app.curProcState) + " next pss in "
+ (app.nextPssTime-now) + ": " + app);
} else {
if (now > app.nextPssTime || (now > (app.lastPssTime+ProcessList.PSS_MAX_INTERVAL)
&& now > (app.lastStateTime+ProcessList.minTimeFromStateChange(
mTestPssMode)))) {
requestPssLocked(app, app.setProcState);
app.nextPssTime = ProcessList.computeNextPssTime(app.curProcState, false,
mTestPssMode, isSleepingLocked(), now);
} else if (false && DEBUG_PSS) Slog.d(TAG_PSS,
"Not requesting PSS of " + app + ": next=" + (app.nextPssTime-now));
}
if (app.setProcState != app.curProcState) {
if (DEBUG_SWITCH || DEBUG_OOM_ADJ || mCurOomAdjUid == app.uid) {
String msg = "Proc state change of " + app.processName
+ " to " + app.curProcState;
reportOomAdjMessageLocked(TAG_OOM_ADJ, msg);
}
boolean setImportant = app.setProcState < ActivityManager.PROCESS_STATE_SERVICE;
boolean curImportant = app.curProcState < ActivityManager.PROCESS_STATE_SERVICE;
if (setImportant && !curImportant) {
// This app is no longer something we consider important enough to allow to
// use arbitrary amounts of battery power. Note
// its current CPU time to later know to kill it if
// it is not behaving well.
app.whenUnimportant = now;
app.lastCpuTime = 0;
}
// Inform UsageStats of important process state change
// Must be called before updating setProcState
maybeUpdateUsageStatsLocked(app, nowElapsed);
app.setProcState = app.curProcState;
if (app.setProcState >= ActivityManager.PROCESS_STATE_HOME) {
app.notCachedSinceIdle = false;
}
if (!doingAll) {
setProcessTrackerStateLocked(app, mProcessStats.getMemFactorLocked(), now);
} else {
app.procStateChanged = true;
}
} else if (app.reportedInteraction && (nowElapsed-app.interactionEventTime)
> mConstants.USAGE_STATS_INTERACTION_INTERVAL) {
// For apps that sit around for a long time in the interactive state, we need
// to report this at least once a day so they don't go idle.
maybeUpdateUsageStatsLocked(app, nowElapsed);
}
if (changes != 0) {
if (DEBUG_PROCESS_OBSERVERS) Slog.i(TAG_PROCESS_OBSERVERS,
"Changes in " + app + ": " + changes);
int i = mPendingProcessChanges.size()-1;
ProcessChangeItem item = null;
while (i >= 0) {
item = mPendingProcessChanges.get(i);
if (item.pid == app.pid) {
if (DEBUG_PROCESS_OBSERVERS) Slog.i(TAG_PROCESS_OBSERVERS,
"Re-using existing item: " + item);
break;
}
i--;
}
if (i < 0) {
// No existing item in pending changes; need a new one.
final int NA = mAvailProcessChanges.size();
if (NA > 0) {
item = mAvailProcessChanges.remove(NA-1);
if (DEBUG_PROCESS_OBSERVERS) Slog.i(TAG_PROCESS_OBSERVERS,
"Retrieving available item: " + item);
} else {
item = new ProcessChangeItem();
if (DEBUG_PROCESS_OBSERVERS) Slog.i(TAG_PROCESS_OBSERVERS,
"Allocating new item: " + item);
}
item.changes = 0;
item.pid = app.pid;
item.uid = app.info.uid;
if (mPendingProcessChanges.size() == 0) {
if (DEBUG_PROCESS_OBSERVERS) Slog.i(TAG_PROCESS_OBSERVERS,
"*** Enqueueing dispatch processes changed!");
mUiHandler.obtainMessage(DISPATCH_PROCESSES_CHANGED_UI_MSG).sendToTarget();
}
mPendingProcessChanges.add(item);
}
item.changes |= changes;
item.foregroundActivities = app.repForegroundActivities;
if (DEBUG_PROCESS_OBSERVERS) Slog.i(TAG_PROCESS_OBSERVERS,
"Item " + Integer.toHexString(System.identityHashCode(item))
+ " " + app.toShortString() + ": changes=" + item.changes
+ " foreground=" + item.foregroundActivities
+ " type=" + app.adjType + " source=" + app.adjSource
+ " target=" + app.adjTarget);
}
return success;
}
private boolean isEphemeralLocked(int uid) {
String packages[] = mContext.getPackageManager().getPackagesForUid(uid);
if (packages == null || packages.length != 1) { // Ephemeral apps cannot share uid
return false;
}
return getPackageManagerInternalLocked().isPackageEphemeral(UserHandle.getUserId(uid),
packages[0]);
}
@VisibleForTesting
final void enqueueUidChangeLocked(UidRecord uidRec, int uid, int change) {
final UidRecord.ChangeItem pendingChange;
if (uidRec == null || uidRec.pendingChange == null) {
if (mPendingUidChanges.size() == 0) {
if (DEBUG_UID_OBSERVERS) Slog.i(TAG_UID_OBSERVERS,
"*** Enqueueing dispatch uid changed!");
mUiHandler.obtainMessage(DISPATCH_UIDS_CHANGED_UI_MSG).sendToTarget();
}
final int NA = mAvailUidChanges.size();
if (NA > 0) {
pendingChange = mAvailUidChanges.remove(NA-1);
if (DEBUG_UID_OBSERVERS) Slog.i(TAG_UID_OBSERVERS,
"Retrieving available item: " + pendingChange);
} else {
pendingChange = new UidRecord.ChangeItem();
if (DEBUG_UID_OBSERVERS) Slog.i(TAG_UID_OBSERVERS,
"Allocating new item: " + pendingChange);
}
if (uidRec != null) {
uidRec.pendingChange = pendingChange;
if ((change & UidRecord.CHANGE_GONE) != 0 && !uidRec.idle) {
// If this uid is going away, and we haven't yet reported it is gone,
// then do so now.
change |= UidRecord.CHANGE_IDLE;
}
} else if (uid < 0) {
throw new IllegalArgumentException("No UidRecord or uid");
}
pendingChange.uidRecord = uidRec;
pendingChange.uid = uidRec != null ? uidRec.uid : uid;
mPendingUidChanges.add(pendingChange);
} else {
pendingChange = uidRec.pendingChange;
// If there is no change in idle or active state, then keep whatever was pending.
if ((change & (UidRecord.CHANGE_IDLE | UidRecord.CHANGE_ACTIVE)) == 0) {
change |= (pendingChange.change & (UidRecord.CHANGE_IDLE
| UidRecord.CHANGE_ACTIVE));
}
// If there is no change in cached or uncached state, then keep whatever was pending.
if ((change & (UidRecord.CHANGE_CACHED | UidRecord.CHANGE_UNCACHED)) == 0) {
change |= (pendingChange.change & (UidRecord.CHANGE_CACHED
| UidRecord.CHANGE_UNCACHED));
}
// If this is a report of the UID being gone, then we shouldn't keep any previous
// report of it being active or cached. (That is, a gone uid is never active,
// and never cached.)
if ((change & UidRecord.CHANGE_GONE) != 0) {
change &= ~(UidRecord.CHANGE_ACTIVE | UidRecord.CHANGE_CACHED);
if (!uidRec.idle) {
// If this uid is going away, and we haven't yet reported it is gone,
// then do so now.
change |= UidRecord.CHANGE_IDLE;
}
}
}
pendingChange.change = change;
pendingChange.processState = uidRec != null
? uidRec.setProcState : ActivityManager.PROCESS_STATE_NONEXISTENT;
pendingChange.ephemeral = uidRec != null ? uidRec.ephemeral : isEphemeralLocked(uid);
pendingChange.procStateSeq = uidRec != null ? uidRec.curProcStateSeq : 0;
if (uidRec != null) {
uidRec.lastReportedChange = change;
uidRec.updateLastDispatchedProcStateSeq(change);
}
// Directly update the power manager, since we sit on top of it and it is critical
// it be kept in sync (so wake locks will be held as soon as appropriate).
if (mLocalPowerManager != null) {
// TO DO: dispatch cached/uncached changes here, so we don't need to report
// all proc state changes.
if ((change & UidRecord.CHANGE_ACTIVE) != 0) {
mLocalPowerManager.uidActive(pendingChange.uid);
}
if ((change & UidRecord.CHANGE_IDLE) != 0) {
mLocalPowerManager.uidIdle(pendingChange.uid);
}
if ((change & UidRecord.CHANGE_GONE) != 0) {
mLocalPowerManager.uidGone(pendingChange.uid);
} else {
mLocalPowerManager.updateUidProcState(pendingChange.uid,
pendingChange.processState);
}
}
}
private void maybeUpdateProviderUsageStatsLocked(ProcessRecord app, String providerPkgName,
String authority) {
if (app == null) return;
if (app.curProcState <= ActivityManager.PROCESS_STATE_IMPORTANT_FOREGROUND) {
UserState userState = mUserController.getStartedUserState(app.userId);
if (userState == null) return;
final long now = SystemClock.elapsedRealtime();
Long lastReported = userState.mProviderLastReportedFg.get(authority);
if (lastReported == null || lastReported < now - 60 * 1000L) {
if (mSystemReady) {
// Cannot touch the user stats if not system ready
mUsageStatsService.reportContentProviderUsage(
authority, providerPkgName, app.userId);
}
userState.mProviderLastReportedFg.put(authority, now);
}
}
}
private void maybeUpdateUsageStatsLocked(ProcessRecord app, long nowElapsed) {
if (DEBUG_USAGE_STATS) {
Slog.d(TAG, "Checking proc [" + Arrays.toString(app.getPackageList())
+ "] state changes: old = " + app.setProcState + ", new = "
+ app.curProcState);
}
if (mUsageStatsService == null) {
return;
}
boolean isInteraction;
// To avoid some abuse patterns, we are going to be careful about what we consider
// to be an app interaction. Being the top activity doesn't count while the display
// is sleeping, nor do short foreground services.
if (app.curProcState <= ActivityManager.PROCESS_STATE_BOUND_FOREGROUND_SERVICE) {
isInteraction = true;
app.fgInteractionTime = 0;
} else if (app.curProcState <= ActivityManager.PROCESS_STATE_TOP_SLEEPING) {
if (app.fgInteractionTime == 0) {
app.fgInteractionTime = nowElapsed;
isInteraction = false;
} else {
isInteraction = nowElapsed > app.fgInteractionTime
+ mConstants.SERVICE_USAGE_INTERACTION_TIME;
}
} else {
isInteraction = app.curProcState <= ActivityManager.PROCESS_STATE_IMPORTANT_FOREGROUND;
app.fgInteractionTime = 0;
}
if (isInteraction && (!app.reportedInteraction || (nowElapsed-app.interactionEventTime)
> mConstants.USAGE_STATS_INTERACTION_INTERVAL)) {
app.interactionEventTime = nowElapsed;
String[] packages = app.getPackageList();
if (packages != null) {
for (int i = 0; i < packages.length; i++) {
mUsageStatsService.reportEvent(packages[i], app.userId,
UsageEvents.Event.SYSTEM_INTERACTION);
}
}
}
app.reportedInteraction = isInteraction;
if (!isInteraction) {
app.interactionEventTime = 0;
}
}
private final void setProcessTrackerStateLocked(ProcessRecord proc, int memFactor, long now) {
if (proc.thread != null) {
if (proc.baseProcessTracker != null) {
proc.baseProcessTracker.setState(proc.repProcState, memFactor, now, proc.pkgList);
}
}
}
private final boolean updateOomAdjLocked(ProcessRecord app, int cachedAdj,
ProcessRecord TOP_APP, boolean doingAll, long now) {
if (app.thread == null) {
return false;
}
computeOomAdjLocked(app, cachedAdj, TOP_APP, doingAll, now);
return applyOomAdjLocked(app, doingAll, now, SystemClock.elapsedRealtime());
}
final void updateProcessForegroundLocked(ProcessRecord proc, boolean isForeground,
boolean oomAdj) {
if (isForeground != proc.foregroundServices) {
proc.foregroundServices = isForeground;
ArrayList<ProcessRecord> curProcs = mForegroundPackages.get(proc.info.packageName,
proc.info.uid);
if (isForeground) {
if (curProcs == null) {
curProcs = new ArrayList<ProcessRecord>();
mForegroundPackages.put(proc.info.packageName, proc.info.uid, curProcs);
}
if (!curProcs.contains(proc)) {
curProcs.add(proc);
mBatteryStatsService.noteEvent(BatteryStats.HistoryItem.EVENT_FOREGROUND_START,
proc.info.packageName, proc.info.uid);
}
} else {
if (curProcs != null) {
if (curProcs.remove(proc)) {
mBatteryStatsService.noteEvent(
BatteryStats.HistoryItem.EVENT_FOREGROUND_FINISH,
proc.info.packageName, proc.info.uid);
if (curProcs.size() <= 0) {
mForegroundPackages.remove(proc.info.packageName, proc.info.uid);
}
}
}
}
if (oomAdj) {
updateOomAdjLocked();
}
}
}
private final ActivityRecord resumedAppLocked() {
ActivityRecord act = mStackSupervisor.getResumedActivityLocked();
String pkg;
int uid;
if (act != null) {
pkg = act.packageName;
uid = act.info.applicationInfo.uid;
} else {
pkg = null;
uid = -1;
}
// Has the UID or resumed package name changed?
if (uid != mCurResumedUid || (pkg != mCurResumedPackage
&& (pkg == null || !pkg.equals(mCurResumedPackage)))) {
if (mCurResumedPackage != null) {
mBatteryStatsService.noteEvent(BatteryStats.HistoryItem.EVENT_TOP_FINISH,
mCurResumedPackage, mCurResumedUid);
}
mCurResumedPackage = pkg;
mCurResumedUid = uid;
if (mCurResumedPackage != null) {
mBatteryStatsService.noteEvent(BatteryStats.HistoryItem.EVENT_TOP_START,
mCurResumedPackage, mCurResumedUid);
}
}
return act;
}
/**
* Update OomAdj for a specific process.
* @param app The process to update
* @param oomAdjAll If it's ok to call updateOomAdjLocked() for all running apps
* if necessary, or skip.
* @return whether updateOomAdjLocked(app) was successful.
*/
final boolean updateOomAdjLocked(ProcessRecord app, boolean oomAdjAll) {
final ActivityRecord TOP_ACT = resumedAppLocked();
final ProcessRecord TOP_APP = TOP_ACT != null ? TOP_ACT.app : null;
final boolean wasCached = app.cached;
mAdjSeq++;
// This is the desired cached adjusment we want to tell it to use.
// If our app is currently cached, we know it, and that is it. Otherwise,
// we don't know it yet, and it needs to now be cached we will then
// need to do a complete oom adj.
final int cachedAdj = app.curRawAdj >= ProcessList.CACHED_APP_MIN_ADJ
? app.curRawAdj : ProcessList.UNKNOWN_ADJ;
boolean success = updateOomAdjLocked(app, cachedAdj, TOP_APP, false,
SystemClock.uptimeMillis());
if (oomAdjAll
&& (wasCached != app.cached || app.curRawAdj == ProcessList.UNKNOWN_ADJ)) {
// Changed to/from cached state, so apps after it in the LRU
// list may also be changed.
updateOomAdjLocked();
}
return success;
}
final void updateOomAdjLocked() {
final ActivityRecord TOP_ACT = resumedAppLocked();
final ProcessRecord TOP_APP = TOP_ACT != null ? TOP_ACT.app : null;
final long now = SystemClock.uptimeMillis();
final long nowElapsed = SystemClock.elapsedRealtime();
final long oldTime = now - ProcessList.MAX_EMPTY_TIME;
final int N = mLruProcesses.size();
if (false) {
RuntimeException e = new RuntimeException();
e.fillInStackTrace();
Slog.i(TAG, "updateOomAdj: top=" + TOP_ACT, e);
}
// Reset state in all uid records.
for (int i=mActiveUids.size()-1; i>=0; i--) {
final UidRecord uidRec = mActiveUids.valueAt(i);
if (false && DEBUG_UID_OBSERVERS) Slog.i(TAG_UID_OBSERVERS,
"Starting update of " + uidRec);
uidRec.reset();
}
mStackSupervisor.rankTaskLayersIfNeeded();
mAdjSeq++;
mNewNumServiceProcs = 0;
mNewNumAServiceProcs = 0;
final int emptyProcessLimit = mConstants.CUR_MAX_EMPTY_PROCESSES;
final int cachedProcessLimit = mConstants.CUR_MAX_CACHED_PROCESSES - emptyProcessLimit;
// Let's determine how many processes we have running vs.
// how many slots we have for background processes; we may want
// to put multiple processes in a slot of there are enough of
// them.
int numSlots = (ProcessList.CACHED_APP_MAX_ADJ
- ProcessList.CACHED_APP_MIN_ADJ + 1) / 2;
int numEmptyProcs = N - mNumNonCachedProcs - mNumCachedHiddenProcs;
if (numEmptyProcs > cachedProcessLimit) {
// If there are more empty processes than our limit on cached
// processes, then use the cached process limit for the factor.
// This ensures that the really old empty processes get pushed
// down to the bottom, so if we are running low on memory we will
// have a better chance at keeping around more cached processes
// instead of a gazillion empty processes.
numEmptyProcs = cachedProcessLimit;
}
int emptyFactor = numEmptyProcs/numSlots;
if (emptyFactor < 1) emptyFactor = 1;
int cachedFactor = (mNumCachedHiddenProcs > 0 ? mNumCachedHiddenProcs : 1)/numSlots;
if (cachedFactor < 1) cachedFactor = 1;
int stepCached = 0;
int stepEmpty = 0;
int numCached = 0;
int numEmpty = 0;
int numTrimming = 0;
mNumNonCachedProcs = 0;
mNumCachedHiddenProcs = 0;
// First update the OOM adjustment for each of the
// application processes based on their current state.
int curCachedAdj = ProcessList.CACHED_APP_MIN_ADJ;
int nextCachedAdj = curCachedAdj+1;
int curEmptyAdj = ProcessList.CACHED_APP_MIN_ADJ;
int nextEmptyAdj = curEmptyAdj+2;
for (int i=N-1; i>=0; i--) {
ProcessRecord app = mLruProcesses.get(i);
if (!app.killedByAm && app.thread != null) {
app.procStateChanged = false;
computeOomAdjLocked(app, ProcessList.UNKNOWN_ADJ, TOP_APP, true, now);
// If we haven't yet assigned the final cached adj
// to the process, do that now.
if (app.curAdj >= ProcessList.UNKNOWN_ADJ) {
switch (app.curProcState) {
case ActivityManager.PROCESS_STATE_CACHED_ACTIVITY:
case ActivityManager.PROCESS_STATE_CACHED_ACTIVITY_CLIENT:
// This process is a cached process holding activities...
// assign it the next cached value for that type, and then
// step that cached level.
app.curRawAdj = curCachedAdj;
app.curAdj = app.modifyRawOomAdj(curCachedAdj);
if (DEBUG_LRU && false) Slog.d(TAG_LRU, "Assigning activity LRU #" + i
+ " adj: " + app.curAdj + " (curCachedAdj=" + curCachedAdj
+ ")");
if (curCachedAdj != nextCachedAdj) {
stepCached++;
if (stepCached >= cachedFactor) {
stepCached = 0;
curCachedAdj = nextCachedAdj;
nextCachedAdj += 2;
if (nextCachedAdj > ProcessList.CACHED_APP_MAX_ADJ) {
nextCachedAdj = ProcessList.CACHED_APP_MAX_ADJ;
}
}
}
break;
default:
// For everything else, assign next empty cached process
// level and bump that up. Note that this means that
// long-running services that have dropped down to the
// cached level will be treated as empty (since their process
// state is still as a service), which is what we want.
app.curRawAdj = curEmptyAdj;
app.curAdj = app.modifyRawOomAdj(curEmptyAdj);
if (DEBUG_LRU && false) Slog.d(TAG_LRU, "Assigning empty LRU #" + i
+ " adj: " + app.curAdj + " (curEmptyAdj=" + curEmptyAdj
+ ")");
if (curEmptyAdj != nextEmptyAdj) {
stepEmpty++;
if (stepEmpty >= emptyFactor) {
stepEmpty = 0;
curEmptyAdj = nextEmptyAdj;
nextEmptyAdj += 2;
if (nextEmptyAdj > ProcessList.CACHED_APP_MAX_ADJ) {
nextEmptyAdj = ProcessList.CACHED_APP_MAX_ADJ;
}
}
}
break;
}
}
applyOomAdjLocked(app, true, now, nowElapsed);
// Count the number of process types.
switch (app.curProcState) {
case ActivityManager.PROCESS_STATE_CACHED_ACTIVITY:
case ActivityManager.PROCESS_STATE_CACHED_ACTIVITY_CLIENT:
mNumCachedHiddenProcs++;
numCached++;
if (numCached > cachedProcessLimit) {
app.kill("cached #" + numCached, true);
}
break;
case ActivityManager.PROCESS_STATE_CACHED_EMPTY:
if (numEmpty > mConstants.CUR_TRIM_EMPTY_PROCESSES
&& app.lastActivityTime < oldTime) {
app.kill("empty for "
+ ((oldTime + ProcessList.MAX_EMPTY_TIME - app.lastActivityTime)
/ 1000) + "s", true);
} else {
numEmpty++;
if (numEmpty > emptyProcessLimit) {
app.kill("empty #" + numEmpty, true);
}
}
break;
default:
mNumNonCachedProcs++;
break;
}
if (app.isolated && app.services.size() <= 0 && app.isolatedEntryPoint == null) {
// If this is an isolated process, there are no services
// running in it, and it's not a special process with a
// custom entry point, then the process is no longer
// needed. We agressively kill these because we can by
// definition not re-use the same process again, and it is
// good to avoid having whatever code was running in them
// left sitting around after no longer needed.
app.kill("isolated not needed", true);
} else {
// Keeping this process, update its uid.
final UidRecord uidRec = app.uidRecord;
if (uidRec != null) {
uidRec.ephemeral = app.info.isInstantApp();
if (uidRec.curProcState > app.curProcState) {
uidRec.curProcState = app.curProcState;
}
if (app.foregroundServices) {
uidRec.foregroundServices = true;
}
}
}
if (app.curProcState >= ActivityManager.PROCESS_STATE_HOME
&& !app.killedByAm) {
numTrimming++;
}
}
}
incrementProcStateSeqAndNotifyAppsLocked();
mNumServiceProcs = mNewNumServiceProcs;
// Now determine the memory trimming level of background processes.
// Unfortunately we need to start at the back of the list to do this
// properly. We only do this if the number of background apps we
// are managing to keep around is less than half the maximum we desire;
// if we are keeping a good number around, we'll let them use whatever
// memory they want.
final int numCachedAndEmpty = numCached + numEmpty;
int memFactor;
if (numCached <= mConstants.CUR_TRIM_CACHED_PROCESSES
&& numEmpty <= mConstants.CUR_TRIM_EMPTY_PROCESSES) {
if (numCachedAndEmpty <= ProcessList.TRIM_CRITICAL_THRESHOLD) {
memFactor = ProcessStats.ADJ_MEM_FACTOR_CRITICAL;
} else if (numCachedAndEmpty <= ProcessList.TRIM_LOW_THRESHOLD) {
memFactor = ProcessStats.ADJ_MEM_FACTOR_LOW;
} else {
memFactor = ProcessStats.ADJ_MEM_FACTOR_MODERATE;
}
} else {
memFactor = ProcessStats.ADJ_MEM_FACTOR_NORMAL;
}
// We always allow the memory level to go up (better). We only allow it to go
// down if we are in a state where that is allowed, *and* the total number of processes
// has gone down since last time.
if (DEBUG_OOM_ADJ) Slog.d(TAG_OOM_ADJ, "oom: memFactor=" + memFactor
+ " last=" + mLastMemoryLevel + " allowLow=" + mAllowLowerMemLevel
+ " numProcs=" + mLruProcesses.size() + " last=" + mLastNumProcesses);
if (memFactor > mLastMemoryLevel) {
if (!mAllowLowerMemLevel || mLruProcesses.size() >= mLastNumProcesses) {
memFactor = mLastMemoryLevel;
if (DEBUG_OOM_ADJ) Slog.d(TAG_OOM_ADJ, "Keeping last mem factor!");
}
}
if (memFactor != mLastMemoryLevel) {
EventLogTags.writeAmMemFactor(memFactor, mLastMemoryLevel);
}
mLastMemoryLevel = memFactor;
mLastNumProcesses = mLruProcesses.size();
boolean allChanged = mProcessStats.setMemFactorLocked(memFactor, !isSleepingLocked(), now);
final int trackerMemFactor = mProcessStats.getMemFactorLocked();
if (memFactor != ProcessStats.ADJ_MEM_FACTOR_NORMAL) {
if (mLowRamStartTime == 0) {
mLowRamStartTime = now;
}
int step = 0;
int fgTrimLevel;
switch (memFactor) {
case ProcessStats.ADJ_MEM_FACTOR_CRITICAL:
fgTrimLevel = ComponentCallbacks2.TRIM_MEMORY_RUNNING_CRITICAL;
break;
case ProcessStats.ADJ_MEM_FACTOR_LOW:
fgTrimLevel = ComponentCallbacks2.TRIM_MEMORY_RUNNING_LOW;
break;
default:
fgTrimLevel = ComponentCallbacks2.TRIM_MEMORY_RUNNING_MODERATE;
break;
}
int factor = numTrimming/3;
int minFactor = 2;
if (mHomeProcess != null) minFactor++;
if (mPreviousProcess != null) minFactor++;
if (factor < minFactor) factor = minFactor;
int curLevel = ComponentCallbacks2.TRIM_MEMORY_COMPLETE;
for (int i=N-1; i>=0; i--) {
ProcessRecord app = mLruProcesses.get(i);
if (allChanged || app.procStateChanged) {
setProcessTrackerStateLocked(app, trackerMemFactor, now);
app.procStateChanged = false;
}
if (app.curProcState >= ActivityManager.PROCESS_STATE_HOME
&& !app.killedByAm) {
if (app.trimMemoryLevel < curLevel && app.thread != null) {
try {
if (DEBUG_SWITCH || DEBUG_OOM_ADJ) Slog.v(TAG_OOM_ADJ,
"Trimming memory of " + app.processName + " to " + curLevel);
app.thread.scheduleTrimMemory(curLevel);
} catch (RemoteException e) {
}
if (false) {
// For now we won't do this; our memory trimming seems
// to be good enough at this point that destroying
// activities causes more harm than good.
if (curLevel >= ComponentCallbacks2.TRIM_MEMORY_COMPLETE
&& app != mHomeProcess && app != mPreviousProcess) {
// Need to do this on its own message because the stack may not
// be in a consistent state at this point.
// For these apps we will also finish their activities
// to help them free memory.
mStackSupervisor.scheduleDestroyAllActivities(app, "trim");
}
}
}
app.trimMemoryLevel = curLevel;
step++;
if (step >= factor) {
step = 0;
switch (curLevel) {
case ComponentCallbacks2.TRIM_MEMORY_COMPLETE:
curLevel = ComponentCallbacks2.TRIM_MEMORY_MODERATE;
break;
case ComponentCallbacks2.TRIM_MEMORY_MODERATE:
curLevel = ComponentCallbacks2.TRIM_MEMORY_BACKGROUND;
break;
}
}
} else if (app.curProcState == ActivityManager.PROCESS_STATE_HEAVY_WEIGHT) {
if (app.trimMemoryLevel < ComponentCallbacks2.TRIM_MEMORY_BACKGROUND
&& app.thread != null) {
try {
if (DEBUG_SWITCH || DEBUG_OOM_ADJ) Slog.v(TAG_OOM_ADJ,
"Trimming memory of heavy-weight " + app.processName
+ " to " + ComponentCallbacks2.TRIM_MEMORY_BACKGROUND);
app.thread.scheduleTrimMemory(
ComponentCallbacks2.TRIM_MEMORY_BACKGROUND);
} catch (RemoteException e) {
}
}
app.trimMemoryLevel = ComponentCallbacks2.TRIM_MEMORY_BACKGROUND;
} else {
if ((app.curProcState >= ActivityManager.PROCESS_STATE_IMPORTANT_BACKGROUND
|| app.systemNoUi) && app.pendingUiClean) {
// If this application is now in the background and it
// had done UI, then give it the special trim level to
// have it free UI resources.
final int level = ComponentCallbacks2.TRIM_MEMORY_UI_HIDDEN;
if (app.trimMemoryLevel < level && app.thread != null) {
try {
if (DEBUG_SWITCH || DEBUG_OOM_ADJ) Slog.v(TAG_OOM_ADJ,
"Trimming memory of bg-ui " + app.processName
+ " to " + level);
app.thread.scheduleTrimMemory(level);
} catch (RemoteException e) {
}
}
app.pendingUiClean = false;
}
if (app.trimMemoryLevel < fgTrimLevel && app.thread != null) {
try {
if (DEBUG_SWITCH || DEBUG_OOM_ADJ) Slog.v(TAG_OOM_ADJ,
"Trimming memory of fg " + app.processName
+ " to " + fgTrimLevel);
app.thread.scheduleTrimMemory(fgTrimLevel);
} catch (RemoteException e) {
}
}
app.trimMemoryLevel = fgTrimLevel;
}
}
} else {
if (mLowRamStartTime != 0) {
mLowRamTimeSinceLastIdle += now - mLowRamStartTime;
mLowRamStartTime = 0;
}
for (int i=N-1; i>=0; i--) {
ProcessRecord app = mLruProcesses.get(i);
if (allChanged || app.procStateChanged) {
setProcessTrackerStateLocked(app, trackerMemFactor, now);
app.procStateChanged = false;
}
if ((app.curProcState >= ActivityManager.PROCESS_STATE_IMPORTANT_BACKGROUND
|| app.systemNoUi) && app.pendingUiClean) {
if (app.trimMemoryLevel < ComponentCallbacks2.TRIM_MEMORY_UI_HIDDEN
&& app.thread != null) {
try {
if (DEBUG_SWITCH || DEBUG_OOM_ADJ) Slog.v(TAG_OOM_ADJ,
"Trimming memory of ui hidden " + app.processName
+ " to " + ComponentCallbacks2.TRIM_MEMORY_UI_HIDDEN);
app.thread.scheduleTrimMemory(
ComponentCallbacks2.TRIM_MEMORY_UI_HIDDEN);
} catch (RemoteException e) {
}
}
app.pendingUiClean = false;
}
app.trimMemoryLevel = 0;
}
}
if (mAlwaysFinishActivities) {
// Need to do this on its own message because the stack may not
// be in a consistent state at this point.
mStackSupervisor.scheduleDestroyAllActivities(null, "always-finish");
}
if (allChanged) {
requestPssAllProcsLocked(now, false, mProcessStats.isMemFactorLowered());
}
ArrayList<UidRecord> becameIdle = null;
// Update from any uid changes.
if (mLocalPowerManager != null) {
mLocalPowerManager.startUidChanges();
}
for (int i=mActiveUids.size()-1; i>=0; i--) {
final UidRecord uidRec = mActiveUids.valueAt(i);
int uidChange = UidRecord.CHANGE_PROCSTATE;
if (uidRec.curProcState != ActivityManager.PROCESS_STATE_NONEXISTENT
&& (uidRec.setProcState != uidRec.curProcState
|| uidRec.setWhitelist != uidRec.curWhitelist)) {
if (DEBUG_UID_OBSERVERS) Slog.i(TAG_UID_OBSERVERS,
"Changes in " + uidRec + ": proc state from " + uidRec.setProcState
+ " to " + uidRec.curProcState + ", whitelist from " + uidRec.setWhitelist
+ " to " + uidRec.curWhitelist);
if (ActivityManager.isProcStateBackground(uidRec.curProcState)
&& !uidRec.curWhitelist) {
// UID is now in the background (and not on the temp whitelist). Was it
// previously in the foreground (or on the temp whitelist)?
if (!ActivityManager.isProcStateBackground(uidRec.setProcState)
|| uidRec.setWhitelist) {
uidRec.lastBackgroundTime = nowElapsed;
if (!mHandler.hasMessages(IDLE_UIDS_MSG)) {
// Note: the background settle time is in elapsed realtime, while
// the handler time base is uptime. All this means is that we may
// stop background uids later than we had intended, but that only
// happens because the device was sleeping so we are okay anyway.
mHandler.sendEmptyMessageDelayed(IDLE_UIDS_MSG,
mConstants.BACKGROUND_SETTLE_TIME);
}
}
if (uidRec.idle && !uidRec.setIdle) {
uidChange = UidRecord.CHANGE_IDLE;
if (becameIdle == null) {
becameIdle = new ArrayList<>();
}
becameIdle.add(uidRec);
}
} else {
if (uidRec.idle) {
uidChange = UidRecord.CHANGE_ACTIVE;
EventLogTags.writeAmUidActive(uidRec.uid);
uidRec.idle = false;
}
uidRec.lastBackgroundTime = 0;
}
final boolean wasCached = uidRec.setProcState
> ActivityManager.PROCESS_STATE_RECEIVER;
final boolean isCached = uidRec.curProcState
> ActivityManager.PROCESS_STATE_RECEIVER;
if (wasCached != isCached ||
uidRec.setProcState == ActivityManager.PROCESS_STATE_NONEXISTENT) {
uidChange |= isCached ? UidRecord.CHANGE_CACHED : UidRecord.CHANGE_UNCACHED;
}
uidRec.setProcState = uidRec.curProcState;
uidRec.setWhitelist = uidRec.curWhitelist;
uidRec.setIdle = uidRec.idle;
enqueueUidChangeLocked(uidRec, -1, uidChange);
noteUidProcessState(uidRec.uid, uidRec.curProcState);
if (uidRec.foregroundServices) {
mServices.foregroundServiceProcStateChangedLocked(uidRec);
}
}
}
if (mLocalPowerManager != null) {
mLocalPowerManager.finishUidChanges();
}
if (becameIdle != null) {
// If we have any new uids that became idle this time, we need to make sure
// they aren't left with running services.
for (int i = becameIdle.size() - 1; i >= 0; i--) {
mServices.stopInBackgroundLocked(becameIdle.get(i).uid);
}
}
if (mProcessStats.shouldWriteNowLocked(now)) {
mHandler.post(new Runnable() {
@Override public void run() {
synchronized (ActivityManagerService.this) {
mProcessStats.writeStateAsyncLocked();
}
}
});
}
if (DEBUG_OOM_ADJ) {
final long duration = SystemClock.uptimeMillis() - now;
if (false) {
Slog.d(TAG_OOM_ADJ, "Did OOM ADJ in " + duration + "ms",
new RuntimeException("here").fillInStackTrace());
} else {
Slog.d(TAG_OOM_ADJ, "Did OOM ADJ in " + duration + "ms");
}
}
}
@Override
public void makePackageIdle(String packageName, int userId) {
if (checkCallingPermission(android.Manifest.permission.FORCE_STOP_PACKAGES)
!= PackageManager.PERMISSION_GRANTED) {
String msg = "Permission Denial: makePackageIdle() from pid="
+ Binder.getCallingPid()
+ ", uid=" + Binder.getCallingUid()
+ " requires " + android.Manifest.permission.FORCE_STOP_PACKAGES;
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
final int callingPid = Binder.getCallingPid();
userId = mUserController.handleIncomingUser(callingPid, Binder.getCallingUid(),
userId, true, ALLOW_FULL_ONLY, "makePackageIdle", null);
long callingId = Binder.clearCallingIdentity();
synchronized(this) {
try {
IPackageManager pm = AppGlobals.getPackageManager();
int pkgUid = -1;
try {
pkgUid = pm.getPackageUid(packageName, MATCH_UNINSTALLED_PACKAGES
| MATCH_DEBUG_TRIAGED_MISSING, UserHandle.USER_SYSTEM);
} catch (RemoteException e) {
}
if (pkgUid == -1) {
throw new IllegalArgumentException("Unknown package name " + packageName);
}
if (mLocalPowerManager != null) {
mLocalPowerManager.startUidChanges();
}
final int appId = UserHandle.getAppId(pkgUid);
final int N = mActiveUids.size();
for (int i=N-1; i>=0; i--) {
final UidRecord uidRec = mActiveUids.valueAt(i);
final long bgTime = uidRec.lastBackgroundTime;
if (bgTime > 0 && !uidRec.idle) {
if (UserHandle.getAppId(uidRec.uid) == appId) {
if (userId == UserHandle.USER_ALL ||
userId == UserHandle.getUserId(uidRec.uid)) {
EventLogTags.writeAmUidIdle(uidRec.uid);
uidRec.idle = true;
uidRec.setIdle = true;
Slog.w(TAG, "Idling uid " + UserHandle.formatUid(uidRec.uid)
+ " from package " + packageName + " user " + userId);
doStopUidLocked(uidRec.uid, uidRec);
}
}
}
}
} finally {
if (mLocalPowerManager != null) {
mLocalPowerManager.finishUidChanges();
}
Binder.restoreCallingIdentity(callingId);
}
}
}
final void idleUids() {
synchronized (this) {
final int N = mActiveUids.size();
if (N <= 0) {
return;
}
final long nowElapsed = SystemClock.elapsedRealtime();
final long maxBgTime = nowElapsed - mConstants.BACKGROUND_SETTLE_TIME;
long nextTime = 0;
if (mLocalPowerManager != null) {
mLocalPowerManager.startUidChanges();
}
for (int i=N-1; i>=0; i--) {
final UidRecord uidRec = mActiveUids.valueAt(i);
final long bgTime = uidRec.lastBackgroundTime;
if (bgTime > 0 && !uidRec.idle) {
if (bgTime <= maxBgTime) {
EventLogTags.writeAmUidIdle(uidRec.uid);
uidRec.idle = true;
uidRec.setIdle = true;
doStopUidLocked(uidRec.uid, uidRec);
} else {
if (nextTime == 0 || nextTime > bgTime) {
nextTime = bgTime;
}
}
}
}
if (mLocalPowerManager != null) {
mLocalPowerManager.finishUidChanges();
}
if (nextTime > 0) {
mHandler.removeMessages(IDLE_UIDS_MSG);
mHandler.sendEmptyMessageDelayed(IDLE_UIDS_MSG,
nextTime + mConstants.BACKGROUND_SETTLE_TIME - nowElapsed);
}
}
}
/**
* Checks if any uid is coming from background to foreground or vice versa and if so, increments
* the {@link UidRecord#curProcStateSeq} corresponding to that uid using global seq counter
* {@link #mProcStateSeqCounter} and notifies the app if it needs to block.
*/
@VisibleForTesting
@GuardedBy("this")
void incrementProcStateSeqAndNotifyAppsLocked() {
if (mWaitForNetworkTimeoutMs <= 0) {
return;
}
// Used for identifying which uids need to block for network.
ArrayList<Integer> blockingUids = null;
for (int i = mActiveUids.size() - 1; i >= 0; --i) {
final UidRecord uidRec = mActiveUids.valueAt(i);
// If the network is not restricted for uid, then nothing to do here.
if (!mInjector.isNetworkRestrictedForUid(uidRec.uid)) {
continue;
}
if (!UserHandle.isApp(uidRec.uid) || !uidRec.hasInternetPermission) {
continue;
}
// If process state is not changed, then there's nothing to do.
if (uidRec.setProcState == uidRec.curProcState) {
continue;
}
final int blockState = getBlockStateForUid(uidRec);
// No need to inform the app when the blockState is NETWORK_STATE_NO_CHANGE as
// there's nothing the app needs to do in this scenario.
if (blockState == NETWORK_STATE_NO_CHANGE) {
continue;
}
synchronized (uidRec.networkStateLock) {
uidRec.curProcStateSeq = ++mProcStateSeqCounter;
if (blockState == NETWORK_STATE_BLOCK) {
if (blockingUids == null) {
blockingUids = new ArrayList<>();
}
blockingUids.add(uidRec.uid);
} else {
if (DEBUG_NETWORK) {
Slog.d(TAG_NETWORK, "uid going to background, notifying all blocking"
+ " threads for uid: " + uidRec);
}
if (uidRec.waitingForNetwork) {
uidRec.networkStateLock.notifyAll();
}
}
}
}
// There are no uids that need to block, so nothing more to do.
if (blockingUids == null) {
return;
}
for (int i = mLruProcesses.size() - 1; i >= 0; --i) {
final ProcessRecord app = mLruProcesses.get(i);
if (!blockingUids.contains(app.uid)) {
continue;
}
if (!app.killedByAm && app.thread != null) {
final UidRecord uidRec = mActiveUids.get(app.uid);
try {
if (DEBUG_NETWORK) {
Slog.d(TAG_NETWORK, "Informing app thread that it needs to block: "
+ uidRec);
}
app.thread.setNetworkBlockSeq(uidRec.curProcStateSeq);
} catch (RemoteException ignored) {
}
}
}
}
/**
* Checks if the uid is coming from background to foreground or vice versa and returns
* appropriate block state based on this.
*
* @return blockState based on whether the uid is coming from background to foreground or
* vice versa. If bg->fg or fg->bg, then {@link #NETWORK_STATE_BLOCK} or
* {@link #NETWORK_STATE_UNBLOCK} respectively, otherwise
* {@link #NETWORK_STATE_NO_CHANGE}.
*/
@VisibleForTesting
int getBlockStateForUid(UidRecord uidRec) {
// Denotes whether uid's process state is currently allowed network access.
final boolean isAllowed = isProcStateAllowedWhileIdleOrPowerSaveMode(uidRec.curProcState)
|| isProcStateAllowedWhileOnRestrictBackground(uidRec.curProcState);
// Denotes whether uid's process state was previously allowed network access.
final boolean wasAllowed = isProcStateAllowedWhileIdleOrPowerSaveMode(uidRec.setProcState)
|| isProcStateAllowedWhileOnRestrictBackground(uidRec.setProcState);
// When the uid is coming to foreground, AMS should inform the app thread that it should
// block for the network rules to get updated before launching an activity.
if (!wasAllowed && isAllowed) {
return NETWORK_STATE_BLOCK;
}
// When the uid is going to background, AMS should inform the app thread that if an
// activity launch is blocked for the network rules to get updated, it should be unblocked.
if (wasAllowed && !isAllowed) {
return NETWORK_STATE_UNBLOCK;
}
return NETWORK_STATE_NO_CHANGE;
}
final void runInBackgroundDisabled(int uid) {
synchronized (this) {
UidRecord uidRec = mActiveUids.get(uid);
if (uidRec != null) {
// This uid is actually running... should it be considered background now?
if (uidRec.idle) {
doStopUidLocked(uidRec.uid, uidRec);
}
} else {
// This uid isn't actually running... still send a report about it being "stopped".
doStopUidLocked(uid, null);
}
}
}
final void doStopUidLocked(int uid, final UidRecord uidRec) {
mServices.stopInBackgroundLocked(uid);
enqueueUidChangeLocked(uidRec, uid, UidRecord.CHANGE_IDLE);
}
/**
* Whitelists {@code targetUid} to temporarily bypass Power Save mode.
*/
void tempWhitelistForPendingIntentLocked(int callerPid, int callerUid, int targetUid,
long duration, String tag) {
if (DEBUG_WHITELISTS) {
Slog.d(TAG, "tempWhitelistForPendingIntentLocked(" + callerPid + ", " + callerUid + ", "
+ targetUid + ", " + duration + ")");
}
synchronized (mPidsSelfLocked) {
final ProcessRecord pr = mPidsSelfLocked.get(callerPid);
if (pr == null) {
Slog.w(TAG, "tempWhitelistForPendingIntentLocked() no ProcessRecord for pid "
+ callerPid);
return;
}
if (!pr.whitelistManager) {
if (checkPermission(CHANGE_DEVICE_IDLE_TEMP_WHITELIST, callerPid, callerUid)
!= PackageManager.PERMISSION_GRANTED) {
if (DEBUG_WHITELISTS) {
Slog.d(TAG, "tempWhitelistForPendingIntentLocked() for target " + targetUid
+ ": pid " + callerPid + " is not allowed");
}
return;
}
}
}
tempWhitelistUidLocked(targetUid, duration, tag);
}
/**
* Whitelists {@code targetUid} to temporarily bypass Power Save mode.
*/
void tempWhitelistUidLocked(int targetUid, long duration, String tag) {
mPendingTempWhitelist.put(targetUid, new PendingTempWhitelist(targetUid, duration, tag));
setUidTempWhitelistStateLocked(targetUid, true);
mUiHandler.obtainMessage(PUSH_TEMP_WHITELIST_UI_MSG).sendToTarget();
}
void pushTempWhitelist() {
final int N;
final PendingTempWhitelist[] list;
// First copy out the pending changes... we need to leave them in the map for now,
// in case someone needs to check what is coming up while we don't have the lock held.
synchronized(this) {
N = mPendingTempWhitelist.size();
list = new PendingTempWhitelist[N];
for (int i = 0; i < N; i++) {
list[i] = mPendingTempWhitelist.valueAt(i);
}
}
// Now safely dispatch changes to device idle controller.
for (int i = 0; i < N; i++) {
PendingTempWhitelist ptw = list[i];
mLocalDeviceIdleController.addPowerSaveTempWhitelistAppDirect(ptw.targetUid,
ptw.duration, true, ptw.tag);
}
// And now we can safely remove them from the map.
synchronized(this) {
for (int i = 0; i < N; i++) {
PendingTempWhitelist ptw = list[i];
int index = mPendingTempWhitelist.indexOfKey(ptw.targetUid);
if (index >= 0 && mPendingTempWhitelist.valueAt(index) == ptw) {
mPendingTempWhitelist.removeAt(index);
}
}
}
}
final void setAppIdTempWhitelistStateLocked(int appId, boolean onWhitelist) {
boolean changed = false;
for (int i=mActiveUids.size()-1; i>=0; i--) {
final UidRecord uidRec = mActiveUids.valueAt(i);
if (UserHandle.getAppId(uidRec.uid) == appId && uidRec.curWhitelist != onWhitelist) {
uidRec.curWhitelist = onWhitelist;
changed = true;
}
}
if (changed) {
updateOomAdjLocked();
}
}
final void setUidTempWhitelistStateLocked(int uid, boolean onWhitelist) {
boolean changed = false;
final UidRecord uidRec = mActiveUids.get(uid);
if (uidRec != null && uidRec.curWhitelist != onWhitelist) {
uidRec.curWhitelist = onWhitelist;
updateOomAdjLocked();
}
}
final void trimApplications() {
synchronized (this) {
int i;
// First remove any unused application processes whose package
// has been removed.
for (i=mRemovedProcesses.size()-1; i>=0; i--) {
final ProcessRecord app = mRemovedProcesses.get(i);
if (app.activities.size() == 0
&& app.curReceivers.isEmpty() && app.services.size() == 0) {
Slog.i(
TAG, "Exiting empty application process "
+ app.toShortString() + " ("
+ (app.thread != null ? app.thread.asBinder() : null)
+ ")\n");
if (app.pid > 0 && app.pid != MY_PID) {
app.kill("empty", false);
} else {
try {
app.thread.scheduleExit();
} catch (Exception e) {
// Ignore exceptions.
}
}
cleanUpApplicationRecordLocked(app, false, true, -1, false /*replacingPid*/);
mRemovedProcesses.remove(i);
if (app.persistent) {
addAppLocked(app.info, null, false, null /* ABI override */);
}
}
}
// Now update the oom adj for all processes.
updateOomAdjLocked();
}
}
/** This method sends the specified signal to each of the persistent apps */
public void signalPersistentProcesses(int sig) throws RemoteException {
if (sig != SIGNAL_USR1) {
throw new SecurityException("Only SIGNAL_USR1 is allowed");
}
synchronized (this) {
if (checkCallingPermission(android.Manifest.permission.SIGNAL_PERSISTENT_PROCESSES)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException("Requires permission "
+ android.Manifest.permission.SIGNAL_PERSISTENT_PROCESSES);
}
for (int i = mLruProcesses.size() - 1 ; i >= 0 ; i--) {
ProcessRecord r = mLruProcesses.get(i);
if (r.thread != null && r.persistent) {
sendSignal(r.pid, sig);
}
}
}
}
private void stopProfilerLocked(ProcessRecord proc, int profileType) {
if (proc == null || proc == mProfileProc) {
proc = mProfileProc;
profileType = mProfileType;
clearProfilerLocked();
}
if (proc == null) {
return;
}
try {
proc.thread.profilerControl(false, null, profileType);
} catch (RemoteException e) {
throw new IllegalStateException("Process disappeared");
}
}
private void clearProfilerLocked() {
if (mProfilerInfo !=null && mProfilerInfo.profileFd != null) {
try {
mProfilerInfo.profileFd.close();
} catch (IOException e) {
}
}
mProfileApp = null;
mProfileProc = null;
mProfilerInfo = null;
}
public boolean profileControl(String process, int userId, boolean start,
ProfilerInfo profilerInfo, int profileType) throws RemoteException {
try {
synchronized (this) {
// note: hijacking SET_ACTIVITY_WATCHER, but should be changed to
// its own permission.
if (checkCallingPermission(android.Manifest.permission.SET_ACTIVITY_WATCHER)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException("Requires permission "
+ android.Manifest.permission.SET_ACTIVITY_WATCHER);
}
if (start && (profilerInfo == null || profilerInfo.profileFd == null)) {
throw new IllegalArgumentException("null profile info or fd");
}
ProcessRecord proc = null;
if (process != null) {
proc = findProcessLocked(process, userId, "profileControl");
}
if (start && (proc == null || proc.thread == null)) {
throw new IllegalArgumentException("Unknown process: " + process);
}
if (start) {
stopProfilerLocked(null, 0);
setProfileApp(proc.info, proc.processName, profilerInfo);
mProfileProc = proc;
mProfileType = profileType;
ParcelFileDescriptor fd = profilerInfo.profileFd;
try {
fd = fd.dup();
} catch (IOException e) {
fd = null;
}
profilerInfo.profileFd = fd;
proc.thread.profilerControl(start, profilerInfo, profileType);
fd = null;
try {
mProfilerInfo.profileFd.close();
} catch (IOException e) {
}
mProfilerInfo.profileFd = null;
} else {
stopProfilerLocked(proc, profileType);
if (profilerInfo != null && profilerInfo.profileFd != null) {
try {
profilerInfo.profileFd.close();
} catch (IOException e) {
}
}
}
return true;
}
} catch (RemoteException e) {
throw new IllegalStateException("Process disappeared");
} finally {
if (profilerInfo != null && profilerInfo.profileFd != null) {
try {
profilerInfo.profileFd.close();
} catch (IOException e) {
}
}
}
}
private ProcessRecord findProcessLocked(String process, int userId, String callName) {
userId = mUserController.handleIncomingUser(Binder.getCallingPid(), Binder.getCallingUid(),
userId, true, ALLOW_FULL_ONLY, callName, null);
ProcessRecord proc = null;
try {
int pid = Integer.parseInt(process);
synchronized (mPidsSelfLocked) {
proc = mPidsSelfLocked.get(pid);
}
} catch (NumberFormatException e) {
}
if (proc == null) {
ArrayMap<String, SparseArray<ProcessRecord>> all
= mProcessNames.getMap();
SparseArray<ProcessRecord> procs = all.get(process);
if (procs != null && procs.size() > 0) {
proc = procs.valueAt(0);
if (userId != UserHandle.USER_ALL && proc.userId != userId) {
for (int i=1; i<procs.size(); i++) {
ProcessRecord thisProc = procs.valueAt(i);
if (thisProc.userId == userId) {
proc = thisProc;
break;
}
}
}
}
}
return proc;
}
public boolean dumpHeap(String process, int userId, boolean managed, boolean mallocInfo,
boolean runGc, String path, ParcelFileDescriptor fd) throws RemoteException {
try {
synchronized (this) {
// note: hijacking SET_ACTIVITY_WATCHER, but should be changed to
// its own permission (same as profileControl).
if (checkCallingPermission(android.Manifest.permission.SET_ACTIVITY_WATCHER)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException("Requires permission "
+ android.Manifest.permission.SET_ACTIVITY_WATCHER);
}
if (fd == null) {
throw new IllegalArgumentException("null fd");
}
ProcessRecord proc = findProcessLocked(process, userId, "dumpHeap");
if (proc == null || proc.thread == null) {
throw new IllegalArgumentException("Unknown process: " + process);
}
boolean isDebuggable = "1".equals(SystemProperties.get(SYSTEM_DEBUGGABLE, "0"));
if (!isDebuggable) {
if ((proc.info.flags&ApplicationInfo.FLAG_DEBUGGABLE) == 0) {
throw new SecurityException("Process not debuggable: " + proc);
}
}
proc.thread.dumpHeap(managed, mallocInfo, runGc, path, fd);
fd = null;
return true;
}
} catch (RemoteException e) {
throw new IllegalStateException("Process disappeared");
} finally {
if (fd != null) {
try {
fd.close();
} catch (IOException e) {
}
}
}
}
@Override
public void setDumpHeapDebugLimit(String processName, int uid, long maxMemSize,
String reportPackage) {
if (processName != null) {
enforceCallingPermission(android.Manifest.permission.SET_DEBUG_APP,
"setDumpHeapDebugLimit()");
} else {
synchronized (mPidsSelfLocked) {
ProcessRecord proc = mPidsSelfLocked.get(Binder.getCallingPid());
if (proc == null) {
throw new SecurityException("No process found for calling pid "
+ Binder.getCallingPid());
}
if (!Build.IS_DEBUGGABLE
&& (proc.info.flags&ApplicationInfo.FLAG_DEBUGGABLE) == 0) {
throw new SecurityException("Not running a debuggable build");
}
processName = proc.processName;
uid = proc.uid;
if (reportPackage != null && !proc.pkgList.containsKey(reportPackage)) {
throw new SecurityException("Package " + reportPackage + " is not running in "
+ proc);
}
}
}
synchronized (this) {
if (maxMemSize > 0) {
mMemWatchProcesses.put(processName, uid, new Pair(maxMemSize, reportPackage));
} else {
if (uid != 0) {
mMemWatchProcesses.remove(processName, uid);
} else {
mMemWatchProcesses.getMap().remove(processName);
}
}
}
}
@Override
public void dumpHeapFinished(String path) {
synchronized (this) {
if (Binder.getCallingPid() != mMemWatchDumpPid) {
Slog.w(TAG, "dumpHeapFinished: Calling pid " + Binder.getCallingPid()
+ " does not match last pid " + mMemWatchDumpPid);
return;
}
if (mMemWatchDumpFile == null || !mMemWatchDumpFile.equals(path)) {
Slog.w(TAG, "dumpHeapFinished: Calling path " + path
+ " does not match last path " + mMemWatchDumpFile);
return;
}
if (DEBUG_PSS) Slog.d(TAG_PSS, "Dump heap finished for " + path);
mHandler.sendEmptyMessage(POST_DUMP_HEAP_NOTIFICATION_MSG);
// Forced gc to clean up the remnant hprof fd.
Runtime.getRuntime().gc();
}
}
/** In this method we try to acquire our lock to make sure that we have not deadlocked */
public void monitor() {
synchronized (this) { }
}
void onCoreSettingsChange(Bundle settings) {
for (int i = mLruProcesses.size() - 1; i >= 0; i--) {
ProcessRecord processRecord = mLruProcesses.get(i);
try {
if (processRecord.thread != null) {
processRecord.thread.setCoreSettings(settings);
}
} catch (RemoteException re) {
/* ignore */
}
}
}
// Multi-user methods
/**
* Start user, if its not already running, but don't bring it to foreground.
*/
@Override
public boolean startUserInBackground(final int userId) {
return mUserController.startUser(userId, /* foreground */ false);
}
@Override
public boolean unlockUser(int userId, byte[] token, byte[] secret, IProgressListener listener) {
return mUserController.unlockUser(userId, token, secret, listener);
}
@Override
public boolean switchUser(final int targetUserId) {
return mUserController.switchUser(targetUserId);
}
@Override
public int stopUser(final int userId, boolean force, final IStopUserCallback callback) {
return mUserController.stopUser(userId, force, callback);
}
@Override
public UserInfo getCurrentUser() {
return mUserController.getCurrentUser();
}
String getStartedUserState(int userId) {
final UserState userState = mUserController.getStartedUserState(userId);
return UserState.stateToString(userState.state);
}
@Override
public boolean isUserRunning(int userId, int flags) {
if (!mUserController.isSameProfileGroup(userId, UserHandle.getCallingUserId())
&& checkCallingPermission(INTERACT_ACROSS_USERS)
!= PackageManager.PERMISSION_GRANTED) {
String msg = "Permission Denial: isUserRunning() from pid="
+ Binder.getCallingPid()
+ ", uid=" + Binder.getCallingUid()
+ " requires " + INTERACT_ACROSS_USERS;
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
return mUserController.isUserRunning(userId, flags);
}
@Override
public int[] getRunningUserIds() {
if (checkCallingPermission(INTERACT_ACROSS_USERS)
!= PackageManager.PERMISSION_GRANTED) {
String msg = "Permission Denial: isUserRunning() from pid="
+ Binder.getCallingPid()
+ ", uid=" + Binder.getCallingUid()
+ " requires " + INTERACT_ACROSS_USERS;
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
return mUserController.getStartedUserArray();
}
@Override
public void registerUserSwitchObserver(IUserSwitchObserver observer, String name) {
mUserController.registerUserSwitchObserver(observer, name);
}
@Override
public void unregisterUserSwitchObserver(IUserSwitchObserver observer) {
mUserController.unregisterUserSwitchObserver(observer);
}
ApplicationInfo getAppInfoForUser(ApplicationInfo info, int userId) {
if (info == null) return null;
ApplicationInfo newInfo = new ApplicationInfo(info);
newInfo.initForUser(userId);
return newInfo;
}
public boolean isUserStopped(int userId) {
return mUserController.getStartedUserState(userId) == null;
}
ActivityInfo getActivityInfoForUser(ActivityInfo aInfo, int userId) {
if (aInfo == null
|| (userId < 1 && aInfo.applicationInfo.uid < UserHandle.PER_USER_RANGE)) {
return aInfo;
}
ActivityInfo info = new ActivityInfo(aInfo);
info.applicationInfo = getAppInfoForUser(info.applicationInfo, userId);
return info;
}
private boolean processSanityChecksLocked(ProcessRecord process) {
if (process == null || process.thread == null) {
return false;
}
boolean isDebuggable = "1".equals(SystemProperties.get(SYSTEM_DEBUGGABLE, "0"));
if (!isDebuggable) {
if ((process.info.flags&ApplicationInfo.FLAG_DEBUGGABLE) == 0) {
return false;
}
}
return true;
}
public boolean startBinderTracking() throws RemoteException {
synchronized (this) {
mBinderTransactionTrackingEnabled = true;
// TODO: hijacking SET_ACTIVITY_WATCHER, but should be changed to its own
// permission (same as profileControl).
if (checkCallingPermission(android.Manifest.permission.SET_ACTIVITY_WATCHER)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException("Requires permission "
+ android.Manifest.permission.SET_ACTIVITY_WATCHER);
}
for (int i = 0; i < mLruProcesses.size(); i++) {
ProcessRecord process = mLruProcesses.get(i);
if (!processSanityChecksLocked(process)) {
continue;
}
try {
process.thread.startBinderTracking();
} catch (RemoteException e) {
Log.v(TAG, "Process disappared");
}
}
return true;
}
}
public boolean stopBinderTrackingAndDump(ParcelFileDescriptor fd) throws RemoteException {
try {
synchronized (this) {
mBinderTransactionTrackingEnabled = false;
// TODO: hijacking SET_ACTIVITY_WATCHER, but should be changed to its own
// permission (same as profileControl).
if (checkCallingPermission(android.Manifest.permission.SET_ACTIVITY_WATCHER)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException("Requires permission "
+ android.Manifest.permission.SET_ACTIVITY_WATCHER);
}
if (fd == null) {
throw new IllegalArgumentException("null fd");
}
PrintWriter pw = new FastPrintWriter(new FileOutputStream(fd.getFileDescriptor()));
pw.println("Binder transaction traces for all processes.\n");
for (ProcessRecord process : mLruProcesses) {
if (!processSanityChecksLocked(process)) {
continue;
}
pw.println("Traces for process: " + process.processName);
pw.flush();
try {
TransferPipe tp = new TransferPipe();
try {
process.thread.stopBinderTrackingAndDump(tp.getWriteFd());
tp.go(fd.getFileDescriptor());
} finally {
tp.kill();
}
} catch (IOException e) {
pw.println("Failure while dumping IPC traces from " + process +
". Exception: " + e);
pw.flush();
} catch (RemoteException e) {
pw.println("Got a RemoteException while dumping IPC traces from " +
process + ". Exception: " + e);
pw.flush();
}
}
fd = null;
return true;
}
} finally {
if (fd != null) {
try {
fd.close();
} catch (IOException e) {
}
}
}
}
@VisibleForTesting
final class LocalService extends ActivityManagerInternal {
@Override
public void grantUriPermissionFromIntent(int callingUid, String targetPkg, Intent intent,
int targetUserId) {
synchronized (ActivityManagerService.this) {
ActivityManagerService.this.grantUriPermissionFromIntentLocked(callingUid,
targetPkg, intent, null, targetUserId);
}
}
@Override
public String checkContentProviderAccess(String authority, int userId) {
return ActivityManagerService.this.checkContentProviderAccess(authority, userId);
}
@Override
public void onWakefulnessChanged(int wakefulness) {
ActivityManagerService.this.onWakefulnessChanged(wakefulness);
}
@Override
public int startIsolatedProcess(String entryPoint, String[] entryPointArgs,
String processName, String abiOverride, int uid, Runnable crashHandler) {
return ActivityManagerService.this.startIsolatedProcess(entryPoint, entryPointArgs,
processName, abiOverride, uid, crashHandler);
}
@Override
public SleepToken acquireSleepToken(String tag, int displayId) {
Preconditions.checkNotNull(tag);
return ActivityManagerService.this.acquireSleepToken(tag, displayId);
}
@Override
public ComponentName getHomeActivityForUser(int userId) {
synchronized (ActivityManagerService.this) {
ActivityRecord homeActivity = mStackSupervisor.getHomeActivityForUser(userId);
return homeActivity == null ? null : homeActivity.realActivity;
}
}
@Override
public void onUserRemoved(int userId) {
synchronized (ActivityManagerService.this) {
ActivityManagerService.this.onUserStoppedLocked(userId);
}
mBatteryStatsService.onUserRemoved(userId);
}
@Override
public void onLocalVoiceInteractionStarted(IBinder activity,
IVoiceInteractionSession voiceSession, IVoiceInteractor voiceInteractor) {
synchronized (ActivityManagerService.this) {
ActivityManagerService.this.onLocalVoiceInteractionStartedLocked(activity,
voiceSession, voiceInteractor);
}
}
@Override
public void notifyAppTransitionStarting(SparseIntArray reasons, long timestamp) {
synchronized (ActivityManagerService.this) {
mStackSupervisor.mActivityMetricsLogger.notifyTransitionStarting(
reasons, timestamp);
}
}
@Override
public void notifyAppTransitionFinished() {
synchronized (ActivityManagerService.this) {
mStackSupervisor.notifyAppTransitionDone();
}
}
@Override
public void notifyAppTransitionCancelled() {
synchronized (ActivityManagerService.this) {
mStackSupervisor.notifyAppTransitionDone();
}
}
@Override
public List<IBinder> getTopVisibleActivities() {
synchronized (ActivityManagerService.this) {
return mStackSupervisor.getTopVisibleActivities();
}
}
@Override
public void notifyDockedStackMinimizedChanged(boolean minimized) {
synchronized (ActivityManagerService.this) {
mStackSupervisor.setDockedStackMinimized(minimized);
}
}
@Override
public void killForegroundAppsForUser(int userHandle) {
synchronized (ActivityManagerService.this) {
final ArrayList<ProcessRecord> procs = new ArrayList<>();
final int NP = mProcessNames.getMap().size();
for (int ip = 0; ip < NP; ip++) {
final SparseArray<ProcessRecord> apps = mProcessNames.getMap().valueAt(ip);
final int NA = apps.size();
for (int ia = 0; ia < NA; ia++) {
final ProcessRecord app = apps.valueAt(ia);
if (app.persistent) {
// We don't kill persistent processes.
continue;
}
if (app.removed) {
procs.add(app);
} else if (app.userId == userHandle && app.foregroundActivities) {
app.removed = true;
procs.add(app);
}
}
}
final int N = procs.size();
for (int i = 0; i < N; i++) {
removeProcessLocked(procs.get(i), false, true, "kill all fg");
}
}
}
@Override
public void setPendingIntentWhitelistDuration(IIntentSender target, IBinder whitelistToken,
long duration) {
if (!(target instanceof PendingIntentRecord)) {
Slog.w(TAG, "markAsSentFromNotification(): not a PendingIntentRecord: " + target);
return;
}
synchronized (ActivityManagerService.this) {
((PendingIntentRecord) target).setWhitelistDurationLocked(whitelistToken, duration);
}
}
@Override
public void setDeviceIdleWhitelist(int[] appids) {
synchronized (ActivityManagerService.this) {
mDeviceIdleWhitelist = appids;
}
}
@Override
public void updateDeviceIdleTempWhitelist(int[] appids, int changingAppId, boolean adding) {
synchronized (ActivityManagerService.this) {
mDeviceIdleTempWhitelist = appids;
setAppIdTempWhitelistStateLocked(changingAppId, adding);
}
}
@Override
public void updatePersistentConfigurationForUser(@NonNull Configuration values,
int userId) {
Preconditions.checkNotNull(values, "Configuration must not be null");
Preconditions.checkArgumentNonnegative(userId, "userId " + userId + " not supported");
synchronized (ActivityManagerService.this) {
updateConfigurationLocked(values, null, false, true, userId,
false /* deferResume */);
}
}
@Override
public int startActivitiesAsPackage(String packageName, int userId, Intent[] intents,
Bundle bOptions) {
Preconditions.checkNotNull(intents, "intents");
final String[] resolvedTypes = new String[intents.length];
for (int i = 0; i < intents.length; i++) {
resolvedTypes[i] = intents[i].resolveTypeIfNeeded(mContext.getContentResolver());
}
// UID of the package on user userId.
// "= 0" is needed because otherwise catch(RemoteException) would make it look like
// packageUid may not be initialized.
int packageUid = 0;
try {
packageUid = AppGlobals.getPackageManager().getPackageUid(
packageName, PackageManager.MATCH_DEBUG_TRIAGED_MISSING, userId);
} catch (RemoteException e) {
// Shouldn't happen.
}
synchronized (ActivityManagerService.this) {
return startActivitiesInPackage(packageUid, packageName, intents, resolvedTypes,
/*resultTo*/ null, bOptions, userId);
}
}
@Override
public int getUidProcessState(int uid) {
return getUidState(uid);
}
@Override
public void notifyKeyguardFlagsChanged(@Nullable Runnable callback) {
synchronized (ActivityManagerService.this) {
// We might change the visibilities here, so prepare an empty app transition which
// might be overridden later if we actually change visibilities.
final boolean wasTransitionSet =
mWindowManager.getPendingAppTransition() != TRANSIT_NONE;
if (!wasTransitionSet) {
mWindowManager.prepareAppTransition(TRANSIT_NONE,
false /* alwaysKeepCurrent */);
}
mStackSupervisor.ensureActivitiesVisibleLocked(null, 0, !PRESERVE_WINDOWS);
// If there was a transition set already we don't want to interfere with it as we
// might be starting it too early.
if (!wasTransitionSet) {
mWindowManager.executeAppTransition();
}
}
if (callback != null) {
callback.run();
}
}
@Override
public boolean isSystemReady() {
// no need to synchronize(this) just to read & return the value
return mSystemReady;
}
@Override
public void notifyKeyguardTrustedChanged() {
synchronized (ActivityManagerService.this) {
if (mKeyguardController.isKeyguardShowing(DEFAULT_DISPLAY)) {
mStackSupervisor.ensureActivitiesVisibleLocked(null, 0, !PRESERVE_WINDOWS);
}
}
}
/**
* Sets if the given pid has an overlay UI or not.
*
* @param pid The pid we are setting overlay UI for.
* @param hasOverlayUi True if the process has overlay UI.
* @see android.view.WindowManager.LayoutParams#TYPE_APPLICATION_OVERLAY
*/
@Override
public void setHasOverlayUi(int pid, boolean hasOverlayUi) {
synchronized (ActivityManagerService.this) {
final ProcessRecord pr;
synchronized (mPidsSelfLocked) {
pr = mPidsSelfLocked.get(pid);
if (pr == null) {
Slog.w(TAG, "setHasOverlayUi called on unknown pid: " + pid);
return;
}
}
if (pr.hasOverlayUi == hasOverlayUi) {
return;
}
pr.hasOverlayUi = hasOverlayUi;
//Slog.i(TAG, "Setting hasOverlayUi=" + pr.hasOverlayUi + " for pid=" + pid);
updateOomAdjLocked(pr, true);
}
}
/**
* Called after the network policy rules are updated by
* {@link com.android.server.net.NetworkPolicyManagerService} for a specific {@param uid}
* and {@param procStateSeq}.
*/
@Override
public void notifyNetworkPolicyRulesUpdated(int uid, long procStateSeq) {
if (DEBUG_NETWORK) {
Slog.d(TAG_NETWORK, "Got update from NPMS for uid: "
+ uid + " seq: " + procStateSeq);
}
UidRecord record;
synchronized (ActivityManagerService.this) {
record = mActiveUids.get(uid);
if (record == null) {
if (DEBUG_NETWORK) {
Slog.d(TAG_NETWORK, "No active uidRecord for uid: " + uid
+ " procStateSeq: " + procStateSeq);
}
return;
}
}
synchronized (record.networkStateLock) {
if (record.lastNetworkUpdatedProcStateSeq >= procStateSeq) {
if (DEBUG_NETWORK) {
Slog.d(TAG_NETWORK, "procStateSeq: " + procStateSeq + " has already"
+ " been handled for uid: " + uid);
}
return;
}
record.lastNetworkUpdatedProcStateSeq = procStateSeq;
if (record.curProcStateSeq > procStateSeq) {
if (DEBUG_NETWORK) {
Slog.d(TAG_NETWORK, "No need to handle older seq no., Uid: " + uid
+ ", curProcstateSeq: " + record.curProcStateSeq
+ ", procStateSeq: " + procStateSeq);
}
return;
}
if (record.waitingForNetwork) {
if (DEBUG_NETWORK) {
Slog.d(TAG_NETWORK, "Notifying all blocking threads for uid: " + uid
+ ", procStateSeq: " + procStateSeq);
}
record.networkStateLock.notifyAll();
}
}
}
/**
* Called after virtual display Id is updated by
* {@link com.android.server.vr.Vr2dDisplay} with a specific
* {@param vrVr2dDisplayId}.
*/
@Override
public void setVr2dDisplayId(int vr2dDisplayId) {
if (DEBUG_STACK) {
Slog.d(TAG, "setVr2dDisplayId called for: " +
vr2dDisplayId);
}
synchronized (ActivityManagerService.this) {
mVr2dDisplayId = vr2dDisplayId;
}
}
@Override
public void saveANRState(String reason) {
synchronized (ActivityManagerService.this) {
final StringWriter sw = new StringWriter();
final PrintWriter pw = new FastPrintWriter(sw, false, 1024);
pw.println(" ANR time: " + DateFormat.getDateTimeInstance().format(new Date()));
if (reason != null) {
pw.println(" Reason: " + reason);
}
pw.println();
mActivityStarter.dump(pw, " ", null);
pw.println();
pw.println("-------------------------------------------------------------------------------");
dumpActivitiesLocked(null /* fd */, pw, null /* args */, 0 /* opti */,
true /* dumpAll */, false /* dumpClient */, null /* dumpPackage */,
"" /* header */);
pw.println();
pw.close();
mLastANRState = sw.toString();
}
}
@Override
public void clearSavedANRState() {
synchronized (ActivityManagerService.this) {
mLastANRState = null;
}
}
@Override
public void setFocusedActivity(IBinder token) {
synchronized (ActivityManagerService.this) {
final ActivityRecord r = ActivityRecord.forTokenLocked(token);
if (r == null) {
throw new IllegalArgumentException(
"setFocusedActivity: No activity record matching token=" + token);
}
if (mStackSupervisor.moveFocusableActivityStackToFrontLocked(
r, "setFocusedActivity")) {
mStackSupervisor.resumeFocusedStackTopActivityLocked();
}
}
}
}
/**
* Called by app main thread to wait for the network policy rules to get updated.
*
* @param procStateSeq The sequence number indicating the process state change that the main
* thread is interested in.
*/
@Override
public void waitForNetworkStateUpdate(long procStateSeq) {
final int callingUid = Binder.getCallingUid();
if (DEBUG_NETWORK) {
Slog.d(TAG_NETWORK, "Called from " + callingUid + " to wait for seq: " + procStateSeq);
}
UidRecord record;
synchronized (this) {
record = mActiveUids.get(callingUid);
if (record == null) {
return;
}
}
synchronized (record.networkStateLock) {
if (record.lastDispatchedProcStateSeq < procStateSeq) {
if (DEBUG_NETWORK) {
Slog.d(TAG_NETWORK, "Uid state change for seq no. " + procStateSeq + " is not "
+ "dispatched to NPMS yet, so don't wait. Uid: " + callingUid
+ " lastProcStateSeqDispatchedToObservers: "
+ record.lastDispatchedProcStateSeq);
}
return;
}
if (record.curProcStateSeq > procStateSeq) {
if (DEBUG_NETWORK) {
Slog.d(TAG_NETWORK, "Ignore the wait requests for older seq numbers. Uid: "
+ callingUid + ", curProcStateSeq: " + record.curProcStateSeq
+ ", procStateSeq: " + procStateSeq);
}
return;
}
if (record.lastNetworkUpdatedProcStateSeq >= procStateSeq) {
if (DEBUG_NETWORK) {
Slog.d(TAG_NETWORK, "Network rules have been already updated for seq no. "
+ procStateSeq + ", so no need to wait. Uid: "
+ callingUid + ", lastProcStateSeqWithUpdatedNetworkState: "
+ record.lastNetworkUpdatedProcStateSeq);
}
return;
}
try {
if (DEBUG_NETWORK) {
Slog.d(TAG_NETWORK, "Starting to wait for the network rules update."
+ " Uid: " + callingUid + " procStateSeq: " + procStateSeq);
}
final long startTime = SystemClock.uptimeMillis();
record.waitingForNetwork = true;
record.networkStateLock.wait(mWaitForNetworkTimeoutMs);
record.waitingForNetwork = false;
final long totalTime = SystemClock.uptimeMillis() - startTime;
if (totalTime >= mWaitForNetworkTimeoutMs || DEBUG_NETWORK) {
Slog.wtf(TAG_NETWORK, "Total time waited for network rules to get updated: "
+ totalTime + ". Uid: " + callingUid + " procStateSeq: "
+ procStateSeq + " UidRec: " + record
+ " validateUidRec: " + mValidateUids.get(callingUid));
}
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
}
}
public void waitForBroadcastIdle(PrintWriter pw) {
enforceCallingPermission(permission.DUMP, "waitForBroadcastIdle()");
while (true) {
boolean idle = true;
synchronized (this) {
for (BroadcastQueue queue : mBroadcastQueues) {
if (!queue.isIdle()) {
final String msg = "Waiting for queue " + queue + " to become idle...";
pw.println(msg);
pw.flush();
Slog.v(TAG, msg);
idle = false;
}
}
}
if (idle) {
final String msg = "All broadcast queues are idle!";
pw.println(msg);
pw.flush();
Slog.v(TAG, msg);
return;
} else {
SystemClock.sleep(1000);
}
}
}
/**
* Return the user id of the last resumed activity.
*/
@Override
public @UserIdInt int getLastResumedActivityUserId() {
enforceCallingPermission(
permission.INTERACT_ACROSS_USERS_FULL, "getLastResumedActivityUserId()");
synchronized (this) {
if (mLastResumedActivity == null) {
return mUserController.getCurrentUserId();
}
return mLastResumedActivity.userId;
}
}
/**
* Kill processes for the user with id userId and that depend on the package named packageName
*/
@Override
public void killPackageDependents(String packageName, int userId) {
enforceCallingPermission(android.Manifest.permission.KILL_UID, "killPackageDependents()");
if (packageName == null) {
throw new NullPointerException(
"Cannot kill the dependents of a package without its name.");
}
long callingId = Binder.clearCallingIdentity();
IPackageManager pm = AppGlobals.getPackageManager();
int pkgUid = -1;
try {
pkgUid = pm.getPackageUid(packageName, MATCH_DEBUG_TRIAGED_MISSING, userId);
} catch (RemoteException e) {
}
if (userId != UserHandle.USER_ALL && pkgUid == -1) {
throw new IllegalArgumentException(
"Cannot kill dependents of non-existing package " + packageName);
}
try {
synchronized(this) {
killPackageProcessesLocked(packageName, UserHandle.getAppId(pkgUid), userId,
ProcessList.FOREGROUND_APP_ADJ, false, true, true, false,
"dep: " + packageName);
}
} finally {
Binder.restoreCallingIdentity(callingId);
}
}
@Override
public void dismissKeyguard(IBinder token, IKeyguardDismissCallback callback)
throws RemoteException {
final long callingId = Binder.clearCallingIdentity();
try {
mKeyguardController.dismissKeyguard(token, callback);
} finally {
Binder.restoreCallingIdentity(callingId);
}
}
@Override
public int restartUserInBackground(final int userId) {
return mUserController.restartUser(userId, /* foreground */ false);
}
@Override
public void scheduleApplicationInfoChanged(List<String> packageNames, int userId) {
enforceCallingPermission(android.Manifest.permission.CHANGE_CONFIGURATION,
"scheduleApplicationInfoChanged()");
synchronized (this) {
final long origId = Binder.clearCallingIdentity();
try {
updateApplicationInfoLocked(packageNames, userId);
} finally {
Binder.restoreCallingIdentity(origId);
}
}
}
void updateApplicationInfoLocked(@NonNull List<String> packagesToUpdate, int userId) {
final boolean updateFrameworkRes = packagesToUpdate.contains("android");
for (int i = mLruProcesses.size() - 1; i >= 0; i--) {
final ProcessRecord app = mLruProcesses.get(i);
if (app.thread == null) {
continue;
}
if (userId != UserHandle.USER_ALL && app.userId != userId) {
continue;
}
final int packageCount = app.pkgList.size();
for (int j = 0; j < packageCount; j++) {
final String packageName = app.pkgList.keyAt(j);
if (updateFrameworkRes || packagesToUpdate.contains(packageName)) {
try {
final ApplicationInfo ai = AppGlobals.getPackageManager()
.getApplicationInfo(packageName, STOCK_PM_FLAGS, app.userId);
if (ai != null) {
app.thread.scheduleApplicationInfoChanged(ai);
}
} catch (RemoteException e) {
Slog.w(TAG, String.format("Failed to update %s ApplicationInfo for %s",
packageName, app));
}
}
}
}
}
/**
* Attach an agent to the specified process (proces name or PID)
*/
public void attachAgent(String process, String path) {
try {
synchronized (this) {
ProcessRecord proc = findProcessLocked(process, UserHandle.USER_SYSTEM, "attachAgent");
if (proc == null || proc.thread == null) {
throw new IllegalArgumentException("Unknown process: " + process);
}
boolean isDebuggable = "1".equals(SystemProperties.get(SYSTEM_DEBUGGABLE, "0"));
if (!isDebuggable) {
if ((proc.info.flags & ApplicationInfo.FLAG_DEBUGGABLE) == 0) {
throw new SecurityException("Process not debuggable: " + proc);
}
}
proc.thread.attachAgent(path);
}
} catch (RemoteException e) {
throw new IllegalStateException("Process disappeared");
}
}
@VisibleForTesting
public static class Injector {
private NetworkManagementInternal mNmi;
public Context getContext() {
return null;
}
public AppOpsService getAppOpsService(File file, Handler handler) {
return new AppOpsService(file, handler);
}
public Handler getUiHandler(ActivityManagerService service) {
return service.new UiHandler();
}
public boolean isNetworkRestrictedForUid(int uid) {
if (ensureHasNetworkManagementInternal()) {
return mNmi.isNetworkRestrictedForUid(uid);
}
return false;
}
private boolean ensureHasNetworkManagementInternal() {
if (mNmi == null) {
mNmi = LocalServices.getService(NetworkManagementInternal.class);
}
return mNmi != null;
}
}
@Override
public void setShowWhenLocked(IBinder token, boolean showWhenLocked)
throws RemoteException {
synchronized (this) {
final ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r == null) {
return;
}
final long origId = Binder.clearCallingIdentity();
try {
r.setShowWhenLocked(showWhenLocked);
} finally {
Binder.restoreCallingIdentity(origId);
}
}
}
@Override
public void setTurnScreenOn(IBinder token, boolean turnScreenOn) throws RemoteException {
synchronized (this) {
final ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r == null) {
return;
}
final long origId = Binder.clearCallingIdentity();
try {
r.setTurnScreenOn(turnScreenOn);
} finally {
Binder.restoreCallingIdentity(origId);
}
}
}
}