Implement suspend, resume and cancel the download.
The DownloadAction can now be suspended and resumed, using the existing
libcurl hooks to pause the download. For canceling an ongoing update,
this patch leverages the existing StopProcessing method previously used
in unittest only with a slight change: Stopping the ActionProcessor
also removes all the pending actions.
The LibcurlHttpFetcher Pause/Unpause methods where improved to support
(not crash) if paused in circumstances where there isn't a current
connection, like when waiting for the proxy resolver and when trying to
reconnect.
Finally, the value of ongoing_update_ is now properly set in the
UpdateAttempter.
Bug: 27047026
TEST=Tested suspending, resuming and canceling the update on a device.
TEST=Added unittest for the Pause/Unpause logic.
Change-Id: I0df1e1a8cf70a3b736bc9cd4899d37813f381b94
diff --git a/mock_proxy_resolver.h b/mock_proxy_resolver.h
new file mode 100644
index 0000000..0595f5a
--- /dev/null
+++ b/mock_proxy_resolver.h
@@ -0,0 +1,38 @@
+//
+// Copyright (C) 2016 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.
+//
+
+#ifndef UPDATE_ENGINE_MOCK_PROXY_RESOLVER_H_
+#define UPDATE_ENGINE_MOCK_PROXY_RESOLVER_H_
+
+#include <string>
+
+#include <gmock/gmock.h>
+
+#include "update_engine/proxy_resolver.h"
+
+namespace chromeos_update_engine {
+
+class MockProxyResolver : public ProxyResolver {
+ public:
+ MOCK_METHOD3(GetProxiesForUrl,
+ bool(const std::string& url,
+ ProxiesResolvedFn callback,
+ void* data));
+};
+
+} // namespace chromeos_update_engine
+
+#endif // UPDATE_ENGINE_MOCK_PROXY_RESOLVER_H_
