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- // Copyright (c) 2014 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 COMPONENTS_BROWSER_WATCHER_EXIT_CODE_WATCHER_WIN_H_
- #define COMPONENTS_BROWSER_WATCHER_EXIT_CODE_WATCHER_WIN_H_
- #include "base/process/process.h"
- #include "base/threading/thread.h"
- #include "base/win/scoped_handle.h"
- namespace browser_watcher {
- // Watches for the exit code of a process and records
- class ExitCodeWatcher {
- public:
- ExitCodeWatcher();
- ExitCodeWatcher(const ExitCodeWatcher&) = delete;
- ExitCodeWatcher& operator=(const ExitCodeWatcher&) = delete;
- ~ExitCodeWatcher();
- // This function expects |process| to be open with sufficient privilege to
- // wait and retrieve the process exit code.
- // It checks the handle for validity and takes ownership of it.
- bool Initialize(base::Process process);
- bool StartWatching();
- void StopWatching();
- const base::Process& process() const { return process_; }
- int ExitCodeForTesting() const { return exit_code_; }
- private:
- // Waits for the process to exit and records its exit code in a histogram.
- // This is a blocking call.
- void WaitForExit();
- // Watched process and its creation time.
- base::Process process_;
- // The thread that runs WaitForExit().
- base::Thread background_thread_;
- // The exit code of the watched process. Valid after WaitForExit.
- int exit_code_;
- // Event handle to use to stop exit watcher thread
- base::win::ScopedHandle stop_watching_handle_;
- };
- } // namespace browser_watcher
- #endif // COMPONENTS_BROWSER_WATCHER_EXIT_CODE_WATCHER_WIN_H_
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