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1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "chrome/common/process_watcher.h" | 5 #include "chrome/common/process_watcher.h" |
6 | 6 |
7 #include "base/message_loop.h" | 7 #include "base/message_loop.h" |
8 #include "base/object_watcher.h" | 8 #include "base/object_watcher.h" |
9 #include "base/sys_info.h" | 9 #include "base/sys_info.h" |
10 #include "chrome/app/result_codes.h" | 10 #include "chrome/app/result_codes.h" |
11 #include "chrome/common/env_vars.h" | 11 #include "chrome/common/env_vars.h" |
12 | 12 |
13 // Maximum amount of time (in milliseconds) to wait for the process to exit. | 13 // Maximum amount of time (in milliseconds) to wait for the process to exit. |
14 static const int kWaitInterval = 2000; | 14 static const int kWaitInterval = 2000; |
15 | 15 |
16 namespace { | 16 namespace { |
17 | 17 |
18 class TimerExpiredTask : public Task, public base::ObjectWatcher::Delegate { | 18 class TimerExpiredTask : public Task, public base::ObjectWatcher::Delegate { |
19 public: | 19 public: |
20 explicit TimerExpiredTask(ProcessHandle process) : process_(process) { | 20 explicit TimerExpiredTask(base::ProcessHandle process) : process_(process) { |
21 watcher_.StartWatching(process_, this); | 21 watcher_.StartWatching(process_, this); |
22 } | 22 } |
23 | 23 |
24 virtual ~TimerExpiredTask() { | 24 virtual ~TimerExpiredTask() { |
25 if (process_) { | 25 if (process_) { |
26 KillProcess(); | 26 KillProcess(); |
27 DCHECK(!process_) << "Make sure to close the handle."; | 27 DCHECK(!process_) << "Make sure to close the handle."; |
28 } | 28 } |
29 } | 29 } |
30 | 30 |
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61 // terminates. We just care that it eventually terminates, and that's what | 61 // terminates. We just care that it eventually terminates, and that's what |
62 // TerminateProcess should do for us. Don't check for the result code since | 62 // TerminateProcess should do for us. Don't check for the result code since |
63 // it fails quite often. This should be investigated eventually. | 63 // it fails quite often. This should be investigated eventually. |
64 TerminateProcess(process_, ResultCodes::HUNG); | 64 TerminateProcess(process_, ResultCodes::HUNG); |
65 | 65 |
66 // Now, just cleanup as if the process exited normally. | 66 // Now, just cleanup as if the process exited normally. |
67 OnObjectSignaled(process_); | 67 OnObjectSignaled(process_); |
68 } | 68 } |
69 | 69 |
70 // The process that we are watching. | 70 // The process that we are watching. |
71 ProcessHandle process_; | 71 base::ProcessHandle process_; |
72 | 72 |
73 base::ObjectWatcher watcher_; | 73 base::ObjectWatcher watcher_; |
74 | 74 |
75 DISALLOW_EVIL_CONSTRUCTORS(TimerExpiredTask); | 75 DISALLOW_EVIL_CONSTRUCTORS(TimerExpiredTask); |
76 }; | 76 }; |
77 | 77 |
78 } // namespace | 78 } // namespace |
79 | 79 |
80 // static | 80 // static |
81 void ProcessWatcher::EnsureProcessTerminated(ProcessHandle process) { | 81 void ProcessWatcher::EnsureProcessTerminated(base::ProcessHandle process) { |
82 DCHECK(process != GetCurrentProcess()); | 82 DCHECK(process != GetCurrentProcess()); |
83 | 83 |
84 // If already signaled, then we are done! | 84 // If already signaled, then we are done! |
85 if (WaitForSingleObject(process, 0) == WAIT_OBJECT_0) { | 85 if (WaitForSingleObject(process, 0) == WAIT_OBJECT_0) { |
86 CloseHandle(process); | 86 CloseHandle(process); |
87 return; | 87 return; |
88 } | 88 } |
89 | 89 |
90 MessageLoop::current()->PostDelayedTask(FROM_HERE, | 90 MessageLoop::current()->PostDelayedTask(FROM_HERE, |
91 new TimerExpiredTask(process), | 91 new TimerExpiredTask(process), |
92 kWaitInterval); | 92 kWaitInterval); |
93 } | 93 } |
94 | 94 |
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