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comparison: ipc/chromium/src/chrome/common/process_watcher.h
ipc/chromium/src/chrome/common/process_watcher.h
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| 1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef CHROME_COMMON_PROCESS_WATCHER_H_ | |
| 6 #define CHROME_COMMON_PROCESS_WATCHER_H_ | |
| 7 | |
| 8 #include "base/basictypes.h" | |
| 9 #include "base/process_util.h" | |
| 10 | |
| 11 class ProcessWatcher { | |
| 12 public: | |
| 13 // This method ensures that the specified process eventually terminates, and | |
| 14 // then it closes the given process handle. | |
| 15 // | |
| 16 // It assumes that the process has already been signalled to exit, and it | |
| 17 // begins by waiting a small amount of time for it to exit. If the process | |
| 18 // does not appear to have exited, then this function starts to become | |
| 19 // aggressive about ensuring that the process terminates. | |
| 20 // | |
| 21 // This method does not block the calling thread. | |
| 22 // | |
| 23 // NOTE: The process handle must have been opened with the PROCESS_TERMINATE | |
| 24 // and SYNCHRONIZE permissions. | |
| 25 // | |
| 26 static void EnsureProcessTerminated(base::ProcessHandle process_handle | |
| 27 , bool force=true | |
| 28 ); | |
| 29 | |
| 30 private: | |
| 31 // Do not instantiate this class. | |
| 32 ProcessWatcher(); | |
| 33 | |
| 34 DISALLOW_COPY_AND_ASSIGN(ProcessWatcher); | |
| 35 }; | |
| 36 | |
| 37 #endif // CHROME_COMMON_PROCESS_WATCHER_H_ |
