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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef ANDROID_WEBVIEW_BROWSER_AW_BROWSER_TERMINATOR_H_
#define ANDROID_WEBVIEW_BROWSER_AW_BROWSER_TERMINATOR_H_
#include <map>
#include "base/synchronization/lock.h"
#include "components/crash/content/browser/crash_dump_observer_android.h"
namespace base {
class SyncSocket;
}
namespace android_webview {
// This class manages behavior of the browser on renderer crashes when
// microdumps are used for capturing the crash stack. Normally, in this case
// the browser doesn't need to do much, because a microdump is written into
// Android log by the renderer process itself. However, the browser may need to
// crash itself on a renderer crash. Since on Android renderers are not child
// processes of the browser, it can't access the exit code. Instead, the browser
// uses a dedicated pipe in order to receive the information about the renderer
// crash status.
class AwBrowserTerminator : public breakpad::CrashDumpObserver::Client {
public:
AwBrowserTerminator();
~AwBrowserTerminator() override;
// breakpad::CrashDumpObserver::Client implementation.
void OnChildStart(int child_process_id,
content::PosixFileDescriptorInfo* mappings) override;
void OnChildExit(int child_process_id,
base::ProcessHandle pid,
content::ProcessType process_type,
base::TerminationStatus termination_status,
base::android::ApplicationState app_state) override;
private:
static void ProcessTerminationStatus(int child_process_id,
base::ProcessHandle pid,
std::unique_ptr<base::SyncSocket> pipe);
// This map should only be accessed with its lock aquired as it is accessed
// from the PROCESS_LAUNCHER, FILE, and UI threads.
base::Lock child_process_id_to_pipe_lock_;
std::map<int, std::unique_ptr<base::SyncSocket>> child_process_id_to_pipe_;
DISALLOW_COPY_AND_ASSIGN(AwBrowserTerminator);
};
} // namespace android_webview
#endif // ANDROID_WEBVIEW_BROWSER_AW_BROWSER_TERMINATOR_H_