| /* | |
| * Copyright (c) 2019, The Linux Foundation. All rights reserved. | |
| * | |
| * Redistribution and use in source and binary forms, with or without | |
| * modification, are permitted provided that the following conditions are | |
| * met: | |
| * * Redistributions of source code must retain the above copyright | |
| * notice, this list of conditions and the following disclaimer. | |
| * * Redistributions in binary form must reproduce the above | |
| * copyright notice, this list of conditions and the following | |
| * disclaimer in the documentation and/or other materials provided | |
| * with the distribution. | |
| * * Neither the name of The Linux Foundation nor the names of its | |
| * contributors may be used to endorse or promote products derived | |
| * from this software without specific prior written permission. | |
| * | |
| * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED | |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT | |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS | |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR | |
| * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE | |
| * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN | |
| * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| */ | |
| #ifndef VERIFY_PRINT_ERROR | |
| #define VERIFY_PRINT_ERROR | |
| #endif // VERIFY_PRINT_ERROR | |
| #include <pthread.h> | |
| #include <unistd.h> | |
| #include <sys/inotify.h> | |
| #include <sys/eventfd.h> | |
| #include <poll.h> | |
| #include <stdio.h> | |
| #include <string.h> | |
| #include <stdlib.h> | |
| #include <errno.h> | |
| #include <limits.h> | |
| #include "apps_std.h" | |
| #include "AEEstd.h" | |
| #include "AEEStdErr.h" | |
| #include "verify.h" | |
| #include "remote_priv.h" | |
| #include "adsp_current_process.h" | |
| #include "adsp_current_process1.h" | |
| #include "adspmsgd_adsp.h" | |
| #include "adspmsgd_adsp1.h" | |
| #include "rpcmem.h" | |
| #define EVENT_SIZE ( sizeof (struct inotify_event) ) | |
| #define EVENT_BUF_LEN ( 1024 * ( EVENT_SIZE + 16 ) ) | |
| #ifndef AEE_EUNSUPPORTED | |
| #define AEE_EUNSUPPORTED 20 // API is not supported 50 | |
| #endif | |
| #define DEFAULT_ADSPMSGD_MEMORY_SIZE 8192 | |
| #define INVALID_HANDLE (remote_handle64)(-1) | |
| #define ERRNO (errno == 0 ? -1 : errno) | |
| struct log_config_watcher_params { | |
| int fd; | |
| int event_fd; // Duplicate fd to quit the poll | |
| _cstring1_t* paths; | |
| int* wd; | |
| uint32 numPaths; | |
| pthread_attr_t attr; | |
| pthread_t thread; | |
| unsigned char stopThread; | |
| int asidToWatch; | |
| char* fileToWatch; | |
| char* asidFileToWatch; | |
| char* pidFileToWatch; | |
| boolean adspmsgdEnabled; | |
| }; | |
| static struct log_config_watcher_params log_config_watcher[NUM_DOMAINS_EXTEND]; | |
| extern const char* __progname; | |
| const char* get_domain_str(int domain); | |
| remote_handle64 get_adsp_current_process1_handle(int domain); | |
| remote_handle64 get_adspmsgd_adsp1_handle(int domain); | |
| static int parseLogConfig(int dom, unsigned short mask, char* filenames){ | |
| _cstring1_t* filesToLog = NULL; | |
| int filesToLogLen = 0; | |
| char* tempFiles = NULL; | |
| int nErr = AEE_SUCCESS; | |
| char *saveptr = NULL; | |
| char* path = NULL; | |
| char delim[] = {','}; | |
| int maxPathLen = 0; | |
| int i = 0; | |
| remote_handle64 handle; | |
| VERIFYC(filenames != NULL, AEE_EINVALIDFILENAME); | |
| VERIFYC(NULL!= (tempFiles = malloc(sizeof(char) * (std_strlen(filenames) + 1))), AEE_ENOMEMORY); | |
| std_strlcpy(tempFiles,filenames,std_strlen(filenames) + 1); | |
| // Get the number of folders and max size needed | |
| path = strtok_r (tempFiles, delim, &saveptr); | |
| while (path != NULL){ | |
| maxPathLen = STD_MAX(maxPathLen, std_strlen(path)) + 1; | |
| filesToLogLen++; | |
| path = strtok_r (NULL, delim, &saveptr); | |
| } | |
| VERIFY_IPRINTF("%s: #files: %d max_len: %d\n", log_config_watcher[dom].fileToWatch, filesToLogLen, maxPathLen); | |
| // Allocate memory | |
| VERIFYC(NULL != (filesToLog = malloc(sizeof(_cstring1_t)*filesToLogLen)), AEE_ENOMEMORY); | |
| for (i = 0; i < filesToLogLen; ++i){ | |
| VERIFYC(NULL != (filesToLog[i].data = malloc(sizeof(char) * maxPathLen)), AEE_ENOMEMORY); | |
| filesToLog[i].dataLen = maxPathLen; | |
| } | |
| // Get the number of folders and max size needed | |
| std_strlcpy(tempFiles,filenames,std_strlen(filenames) + 1); | |
| i = 0; | |
| path = strtok_r (tempFiles, delim, &saveptr); | |
| while (path != NULL){ | |
| VERIFYC((filesToLog != NULL) && (filesToLog[i].data != NULL) && | |
| filesToLog[i].dataLen >= (int)strlen(path), AEE_EBADSIZE); | |
| std_strlcpy(filesToLog[i].data, path, filesToLog[i].dataLen); | |
| VERIFY_IPRINTF("%s: %s\n", log_config_watcher[dom].fileToWatch, filesToLog[i].data); | |
| path = strtok_r (NULL, delim, &saveptr); | |
| i++; | |
| } | |
| handle = get_adsp_current_process1_handle(dom); | |
| if (handle != INVALID_HANDLE) { | |
| VERIFY(AEE_SUCCESS == (nErr = adsp_current_process1_set_logging_params(handle, mask,filesToLog,filesToLogLen))); | |
| } else { | |
| VERIFY(AEE_SUCCESS == (nErr = adsp_current_process_set_logging_params(mask,filesToLog,filesToLogLen))); | |
| } | |
| bail: | |
| if (filesToLog){ | |
| for (i = 0; i < filesToLogLen; ++i){ | |
| if (filesToLog[i].data != NULL){ | |
| free (filesToLog[i].data); | |
| filesToLog[i].data = NULL; | |
| } | |
| } | |
| free(filesToLog); | |
| filesToLog = NULL; | |
| } | |
| if(tempFiles){ | |
| free(tempFiles); | |
| tempFiles = NULL; | |
| } | |
| if(nErr != AEE_SUCCESS) { | |
| VERIFY_EPRINTF("Error %x: parse log config failed. domain %d, mask %x, filename %s\n", nErr, dom, mask, filenames); | |
| } | |
| return nErr; | |
| } | |
| // Read log config given the filename | |
| static int readLogConfigFromPath(int dom, const char* base, const char* file){ | |
| int nErr = 0; | |
| apps_std_FILE fp = -1; | |
| uint64 len; | |
| byte* buf = NULL; | |
| int readlen = 0, eof; | |
| unsigned short mask = 0; | |
| char* path = NULL; | |
| char* filenames = NULL; | |
| boolean fileExists = FALSE; | |
| int buf_addr = 0; | |
| remote_handle64 handle; | |
| len = std_snprintf(0, 0, "%s/%s", base, file) + 1; | |
| VERIFYC(NULL != (path = malloc(sizeof(char) * len)), AEE_ENOMEMORY); | |
| std_snprintf(path, (int)len, "%s/%s", base, file); | |
| VERIFY(AEE_SUCCESS == (nErr = apps_std_fileExists(path,&fileExists))); | |
| if (fileExists == FALSE){ | |
| VERIFY_IPRINTF("%s: Couldn't find file: %s\n",log_config_watcher[dom].fileToWatch, path); | |
| nErr = AEE_ENOSUCHFILE; | |
| goto bail; | |
| } | |
| if (log_config_watcher[dom].adspmsgdEnabled == FALSE){ | |
| handle = get_adspmsgd_adsp1_handle(dom); | |
| if(handle != INVALID_HANDLE) { | |
| adspmsgd_adsp1_init2(handle); | |
| } else if(AEE_EUNSUPPORTED == (nErr = adspmsgd_adsp_init2())) { | |
| nErr = adspmsgd_adsp_init(0, RPCMEM_HEAP_DEFAULT, 0, DEFAULT_ADSPMSGD_MEMORY_SIZE, &buf_addr); | |
| } | |
| if (nErr != AEE_SUCCESS){ | |
| VERIFY_EPRINTF("adspmsgd not supported. nErr=%x\n", nErr); | |
| }else{ | |
| log_config_watcher[dom].adspmsgdEnabled = TRUE; | |
| } | |
| VERIFY_EPRINTF("Found %s. adspmsgd enabled \n", log_config_watcher[dom].fileToWatch); | |
| } | |
| VERIFY(AEE_SUCCESS == (nErr = apps_std_fopen(path, "r", &fp))); | |
| VERIFY(AEE_SUCCESS == (nErr = apps_std_flen(fp, &len))); | |
| VERIFYC(len < 511, AEE_EBADSIZE); | |
| VERIFYC(NULL != (buf = calloc(1, sizeof(byte) * (len + 1))), AEE_ENOMEMORY); // extra 1 byte for null character | |
| VERIFYC(NULL != (filenames = malloc(sizeof(byte) * len)), AEE_ENOMEMORY); | |
| VERIFY(AEE_SUCCESS == (nErr = apps_std_fread(fp, buf, len, &readlen, &eof))); | |
| VERIFYC((int)len == readlen, AEE_EFREAD); | |
| VERIFY_IPRINTF("%s: Config file %s contents: %s\n", log_config_watcher[dom].fileToWatch, path, buf); | |
| len = sscanf((const char*)buf, "0x%hx %511s", &mask, filenames); | |
| switch (len){ | |
| case 1: | |
| VERIFY_IPRINTF("%s: Setting log mask:0x%x", log_config_watcher[dom].fileToWatch, mask); | |
| handle = get_adsp_current_process1_handle(dom); | |
| if (handle != INVALID_HANDLE) { | |
| VERIFY(AEE_SUCCESS == (nErr = adsp_current_process1_set_logging_params(handle,mask,NULL,0))); | |
| } else { | |
| VERIFY(AEE_SUCCESS == (nErr = adsp_current_process_set_logging_params(mask,NULL,0))); | |
| } | |
| break; | |
| case 2: | |
| VERIFY(AEE_SUCCESS == (nErr = parseLogConfig(dom, mask,filenames))); | |
| VERIFY_IPRINTF("%s: Setting log mask:0x%x, filename:%s", log_config_watcher[dom].fileToWatch, mask, filenames); | |
| break; | |
| default: | |
| VERIFY_EPRINTF("%s: No valid data found in config file %s", log_config_watcher[dom].fileToWatch, path); | |
| nErr = AEE_EUNSUPPORTED; | |
| goto bail; | |
| } | |
| bail: | |
| if (buf != NULL){ | |
| free(buf); | |
| buf = NULL; | |
| } | |
| if (filenames != NULL){ | |
| free(filenames); | |
| filenames = NULL; | |
| } | |
| if (fp != -1){ | |
| apps_std_fclose(fp); | |
| } | |
| if (path != NULL){ | |
| free(path); | |
| path = NULL; | |
| } | |
| if(nErr != AEE_SUCCESS) { | |
| VERIFY_IPRINTF("Error %x: fopen failed for %s/%s. (%s)\n", nErr, base, file, strerror(ERRNO)); | |
| } | |
| return nErr; | |
| } | |
| // Read log config given the watch descriptor | |
| static int readLogConfigFromEvent(int dom, struct inotify_event *event){ | |
| int i = 0; | |
| // Ensure we are looking at the right file | |
| for (i = 0; i < (int)log_config_watcher[dom].numPaths; ++i){ | |
| if (log_config_watcher[dom].wd[i] == event->wd ){ | |
| if(std_strcmp(log_config_watcher[dom].fileToWatch, event->name) == 0){ | |
| return readLogConfigFromPath(dom, log_config_watcher[dom].paths[i].data, log_config_watcher[dom].fileToWatch); | |
| }else if (std_strcmp(log_config_watcher[dom].asidFileToWatch, event->name) == 0) { | |
| return readLogConfigFromPath(dom, log_config_watcher[dom].paths[i].data, log_config_watcher[dom].asidFileToWatch); | |
| }else if (std_strcmp(log_config_watcher[dom].pidFileToWatch, event->name) == 0){ | |
| return readLogConfigFromPath(dom, log_config_watcher[dom].paths[i].data, log_config_watcher[dom].pidFileToWatch); | |
| } | |
| } | |
| } | |
| VERIFY_IPRINTF("%s: Watch descriptor %d not valid for current process", log_config_watcher[dom].fileToWatch, event->wd); | |
| return AEE_SUCCESS; | |
| } | |
| // Read log config given the watch descriptor | |
| static int resetLogConfigFromEvent(int dom, struct inotify_event *event) { | |
| int i = 0; | |
| remote_handle64 handle; | |
| // Ensure we are looking at the right file | |
| for (i = 0; i < (int)log_config_watcher[dom].numPaths; ++i){ | |
| if (log_config_watcher[dom].wd[i] == event->wd ){ | |
| if( (std_strcmp(log_config_watcher[dom].fileToWatch, event->name) == 0)|| | |
| (std_strcmp(log_config_watcher[dom].asidFileToWatch, event->name) == 0) || | |
| (std_strcmp(log_config_watcher[dom].pidFileToWatch, event->name) == 0) ) { | |
| if (log_config_watcher[dom].adspmsgdEnabled == TRUE){ | |
| handle = get_adspmsgd_adsp1_handle(dom); | |
| if(handle != INVALID_HANDLE) { | |
| adspmsgd_adsp1_deinit(handle); | |
| } else { | |
| adspmsgd_adsp_deinit(); | |
| } | |
| } | |
| handle = get_adsp_current_process1_handle(dom); | |
| if (handle != INVALID_HANDLE) { | |
| return adsp_current_process1_set_logging_params(handle,0,NULL,0); | |
| } else { | |
| return adsp_current_process_set_logging_params(0,NULL,0); | |
| } | |
| } | |
| } | |
| } | |
| VERIFY_IPRINTF("%s: Watch descriptor %d not valid for current process", log_config_watcher[dom].fileToWatch, event->wd); | |
| return AEE_SUCCESS; | |
| } | |
| static void* file_watcher_thread(void *arg) { | |
| int dom = (int)(uintptr_t)arg; | |
| int ret = 0; | |
| int length = 0; | |
| int nErr = AEE_SUCCESS; | |
| int i = 0; | |
| char buffer[EVENT_BUF_LEN]; | |
| struct pollfd pfd[] = { | |
| {log_config_watcher[dom].fd, POLLIN, 0}, | |
| {log_config_watcher[dom].event_fd, POLLIN, 0} | |
| }; | |
| const char* fileExtension = ".farf"; | |
| int len = 0; | |
| remote_handle64 handle; | |
| // Check for the presence of the <process_name>.farf file at bootup | |
| for (i = 0; i < (int)log_config_watcher[dom].numPaths; ++i){ | |
| if (0 == readLogConfigFromPath(dom, log_config_watcher[dom].paths[i].data, log_config_watcher[dom].fileToWatch)){ | |
| VERIFY_IPRINTF("%s: Log config File %s found.\n", log_config_watcher[dom].fileToWatch, log_config_watcher[dom].paths[i].data ); | |
| } | |
| } | |
| while(log_config_watcher[dom].stopThread == 0){ | |
| // Block forever | |
| ret = poll(pfd, 2, -1); | |
| if(ret < 0){ | |
| VERIFY_EPRINTF("%s: Error polling for file change. Runtime FARF will not work for this process. errno=%x !", log_config_watcher[dom].fileToWatch, errno); | |
| break; | |
| } else if (pfd[1].revents & POLLIN) { // Check for exit | |
| VERIFY_IPRINTF("Received exit.\n"); | |
| break; | |
| } else { | |
| length = read( log_config_watcher[dom].fd, buffer, EVENT_BUF_LEN ); | |
| i = 0; | |
| while ( i < length ) { | |
| struct inotify_event *event = ( struct inotify_event * ) &buffer[ i ]; | |
| if ( event->len ) { | |
| // Get the asiD for the current process | |
| // Do it once only | |
| if (log_config_watcher[dom].asidToWatch == -1){ | |
| handle = get_adsp_current_process1_handle(dom); | |
| if (handle != INVALID_HANDLE) { | |
| VERIFY(AEE_SUCCESS == (nErr = adsp_current_process1_getASID(handle,(unsigned int*)&log_config_watcher[dom].asidToWatch ))); | |
| } else { | |
| VERIFY(AEE_SUCCESS == (nErr = adsp_current_process_getASID((unsigned int*)&log_config_watcher[dom].asidToWatch ))); | |
| } | |
| len = strlen(fileExtension) + strlen(__TOSTR__(INT_MAX)); | |
| VERIFYC(NULL != (log_config_watcher[dom].asidFileToWatch = malloc(sizeof(char) * len)), AEE_ENOMEMORY); | |
| snprintf(log_config_watcher[dom].asidFileToWatch, len, "%d%s", log_config_watcher[dom].asidToWatch, fileExtension); | |
| VERIFY_IPRINTF("%s: Watching ASID file %s\n", log_config_watcher[dom].fileToWatch, log_config_watcher[dom].asidFileToWatch); | |
| } | |
| VERIFY_IPRINTF("%s: %s %d.\n", log_config_watcher[dom].fileToWatch, event->name, event->mask ); | |
| if ( (event->mask & IN_CREATE) || (event->mask & IN_MODIFY)) { | |
| VERIFY_IPRINTF("%s: File %s created.\n", log_config_watcher[dom].fileToWatch, event->name ); | |
| if (0 != readLogConfigFromEvent(dom, event)){ | |
| VERIFY_EPRINTF("%s: Error reading config file %s", log_config_watcher[dom].fileToWatch, log_config_watcher[dom].paths[i].data); | |
| } | |
| } | |
| else if ( event->mask & IN_DELETE ) { | |
| VERIFY_IPRINTF("%s: File %s deleted.\n", log_config_watcher[dom].fileToWatch, event->name ); | |
| if (0 != resetLogConfigFromEvent(dom, event)){ | |
| VERIFY_EPRINTF("%s: Error resetting FARF runtime log config" ,log_config_watcher[dom].fileToWatch); | |
| } | |
| } | |
| } | |
| i += EVENT_SIZE + event->len; | |
| } | |
| } | |
| } | |
| bail: | |
| if (nErr != AEE_SUCCESS){ | |
| VERIFY_EPRINTF("Error %x: file watcher thread exited. Runtime FARF will not work for this process. filename %s\n", nErr, log_config_watcher[dom].fileToWatch); | |
| } | |
| return NULL; | |
| } | |
| void deinitFileWatcher(int dom) { | |
| int i = 0; | |
| uint64 stop = 10; | |
| remote_handle64 handle; | |
| log_config_watcher[dom].stopThread = 1; | |
| if (0 < log_config_watcher[dom].event_fd) { | |
| if (write(log_config_watcher[dom].event_fd, &stop, sizeof(uint64)) != sizeof(uint64)) { | |
| VERIFY_EPRINTF("Error: write failed: Cannot set exit flag to watcher thread.\n"); | |
| } | |
| } | |
| if (log_config_watcher[dom].thread) { | |
| pthread_join(log_config_watcher[dom].thread, NULL); | |
| log_config_watcher[dom].thread = 0; | |
| } | |
| if (log_config_watcher[dom].fileToWatch){ | |
| free (log_config_watcher[dom].fileToWatch); | |
| log_config_watcher[dom].fileToWatch = 0; | |
| } | |
| if (log_config_watcher[dom].asidFileToWatch){ | |
| free (log_config_watcher[dom].asidFileToWatch); | |
| log_config_watcher[dom].asidFileToWatch = 0; | |
| } | |
| if (log_config_watcher[dom].pidFileToWatch){ | |
| free (log_config_watcher[dom].pidFileToWatch); | |
| log_config_watcher[dom].pidFileToWatch = 0; | |
| } | |
| if (log_config_watcher[dom].wd){ | |
| for (i = 0; i < (int)log_config_watcher[dom].numPaths; ++i){ | |
| if (log_config_watcher[dom].wd[i] != 0){ | |
| inotify_rm_watch( log_config_watcher[dom].fd, log_config_watcher[dom].wd[i] ); | |
| } | |
| } | |
| free(log_config_watcher[dom].wd); | |
| log_config_watcher[dom].wd = NULL; | |
| } | |
| if (log_config_watcher[dom].paths){ | |
| for (i = 0; i < (int)log_config_watcher[dom].numPaths; ++i){ | |
| if (log_config_watcher[dom].paths[i].data){ | |
| free(log_config_watcher[dom].paths[i].data); | |
| log_config_watcher[dom].paths[i].data = NULL; | |
| } | |
| } | |
| free(log_config_watcher[dom].paths); | |
| log_config_watcher[dom].paths = NULL; | |
| } | |
| if(log_config_watcher[dom].fd != 0){ | |
| close(log_config_watcher[dom].fd); | |
| log_config_watcher[dom].fd = 0; | |
| } | |
| if (log_config_watcher[dom].adspmsgdEnabled == TRUE){ | |
| handle = get_adspmsgd_adsp1_handle(dom); | |
| if (handle != INVALID_HANDLE) { | |
| adspmsgd_adsp1_deinit(handle); | |
| } else { | |
| adspmsgd_adsp_deinit(); | |
| } | |
| log_config_watcher[dom].adspmsgdEnabled = FALSE; | |
| } | |
| if(log_config_watcher[dom].event_fd != 0){ | |
| close(log_config_watcher[dom].event_fd); | |
| log_config_watcher[dom].event_fd = 0; | |
| } | |
| log_config_watcher[dom].numPaths = 0; | |
| } | |
| int initFileWatcher(int dom) { | |
| int nErr = AEE_SUCCESS; | |
| const char* fileExtension = ".farf"; | |
| uint32 len = 0; | |
| uint16 maxPathLen = 0; | |
| int i = 0; | |
| char* name = NULL; | |
| memset(&log_config_watcher[dom], 0, sizeof(struct log_config_watcher_params)); | |
| log_config_watcher[dom].asidToWatch = 0; | |
| VERIFYC(NULL != (name = std_basename(__progname)), AEE_EINVALIDPROCNAME); | |
| len = strlen(name) + strlen(fileExtension) + 1; | |
| VERIFYC(NULL != (log_config_watcher[dom].fileToWatch = malloc(sizeof(char) * len)), AEE_ENOMEMORY); | |
| snprintf(log_config_watcher[dom].fileToWatch, len, "%s%s", name, fileExtension); | |
| len = strlen(fileExtension) + strlen(__TOSTR__(INT_MAX)); | |
| VERIFYC(NULL != (log_config_watcher[dom].pidFileToWatch = malloc(sizeof(char) * len)), AEE_ENOMEMORY); | |
| snprintf(log_config_watcher[dom].pidFileToWatch, len, "%d%s", getpid(), fileExtension); | |
| VERIFY_IPRINTF("%s: Watching PID file: %s\n", log_config_watcher[dom].fileToWatch, log_config_watcher[dom].pidFileToWatch); | |
| log_config_watcher[dom].fd = inotify_init(); | |
| if (log_config_watcher[dom].fd < 0){ | |
| nErr = AEE_EINVALIDFD; | |
| VERIFY_EPRINTF("Error %x: inotify_init failed. errno = %s\n", nErr, strerror(errno)); | |
| goto bail; | |
| } | |
| // Duplicate the fd, so we can use it to quit polling | |
| log_config_watcher[dom].event_fd = eventfd(0, 0); | |
| if (log_config_watcher[dom].event_fd < 0){ | |
| nErr = AEE_EINVALIDFD; | |
| VERIFY_EPRINTF("Error %x: eventfd in dup failed. errno %s\n", nErr, strerror(errno)); | |
| goto bail; | |
| } | |
| VERIFY_IPRINTF("fd = %d dupfd=%d\n", log_config_watcher[dom].fd, log_config_watcher[dom].event_fd); | |
| // Get the required size | |
| apps_std_get_search_paths_with_env("ADSP_LIBRARY_PATH", ";", NULL, 0, | |
| &log_config_watcher[dom].numPaths, &maxPathLen); | |
| maxPathLen += + 1; | |
| // Allocate memory | |
| VERIFYC(NULL != (log_config_watcher[dom].paths | |
| = malloc(sizeof(_cstring1_t) * log_config_watcher[dom].numPaths)), AEE_ENOMEMORY); | |
| VERIFYC(NULL != (log_config_watcher[dom].wd | |
| = malloc(sizeof(int) * log_config_watcher[dom].numPaths)), AEE_ENOMEMORY); | |
| for (i = 0; i < (int)log_config_watcher[dom].numPaths; ++i){ | |
| VERIFYC( NULL != (log_config_watcher[dom].paths[i].data | |
| = malloc(sizeof(char) * maxPathLen)), AEE_ENOMEMORY); | |
| log_config_watcher[dom].paths[i].dataLen = maxPathLen; | |
| } | |
| // Get the paths | |
| VERIFY(AEE_SUCCESS == (nErr = apps_std_get_search_paths_with_env("ADSP_LIBRARY_PATH", ";", | |
| log_config_watcher[dom].paths, log_config_watcher[dom].numPaths, &len, &maxPathLen))); | |
| maxPathLen += 1; | |
| VERIFY_IPRINTF("%s: Watching folders:\n", log_config_watcher[dom].fileToWatch); | |
| for (i = 0; i < (int)log_config_watcher[dom].numPaths; ++i){ | |
| // Watch for creation, deletion and modification of files in path | |
| VERIFY_IPRINTF("log file watcher: %s: %s\n",log_config_watcher[dom].fileToWatch, log_config_watcher[dom].paths[i].data); | |
| if((log_config_watcher[dom].wd[i] = inotify_add_watch (log_config_watcher[dom].fd, | |
| log_config_watcher[dom].paths[i].data, IN_CREATE | IN_DELETE)) < 0) { | |
| VERIFY_EPRINTF("Unable to add watcher for folder %s : errno is %s\n", log_config_watcher[dom].paths[i].data, strerror(ERRNO)); | |
| } | |
| } | |
| // Create a thread to watch for file changes | |
| log_config_watcher[dom].asidToWatch = -1; | |
| log_config_watcher[dom].stopThread = 0; | |
| pthread_create(&log_config_watcher[dom].thread, NULL, file_watcher_thread, (void*)(uintptr_t)dom); | |
| bail: | |
| if (nErr!=AEE_SUCCESS){ | |
| VERIFY_EPRINTF("Error %x: Failed to register with inotify file %s. Runtime FARF will not work for the process %s!", nErr, log_config_watcher[dom].fileToWatch, name); | |
| deinitFileWatcher(dom); | |
| } | |
| return nErr; | |
| } |