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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 #ifndef BASE_PROCESS_PROCESS_H_ | 5 #ifndef BASE_PROCESS_PROCESS_H_ |
6 #define BASE_PROCESS_PROCESS_H_ | 6 #define BASE_PROCESS_PROCESS_H_ |
7 | 7 |
8 #include "base/base_export.h" | 8 #include "base/base_export.h" |
9 #include "base/basictypes.h" | 9 #include "base/basictypes.h" |
10 #include "base/move.h" | 10 #include "base/move.h" |
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95 // be the exit code of the process. If |wait| is true, this method will wait | 95 // be the exit code of the process. If |wait| is true, this method will wait |
96 // for up to one minute for the process to actually terminate. | 96 // for up to one minute for the process to actually terminate. |
97 // Returns true if the process terminates within the allowed time. | 97 // Returns true if the process terminates within the allowed time. |
98 // NOTE: On POSIX |exit_code| is ignored. | 98 // NOTE: On POSIX |exit_code| is ignored. |
99 bool Terminate(int exit_code, bool wait) const; | 99 bool Terminate(int exit_code, bool wait) const; |
100 | 100 |
101 // Waits for the process to exit. Returns true on success. | 101 // Waits for the process to exit. Returns true on success. |
102 // On POSIX, if the process has been signaled then |exit_code| is set to -1. | 102 // On POSIX, if the process has been signaled then |exit_code| is set to -1. |
103 // On Linux this must be a child process, however on Mac and Windows it can be | 103 // On Linux this must be a child process, however on Mac and Windows it can be |
104 // any process. | 104 // any process. |
| 105 // NOTE: |exit_code| is optional, nullptr can be passed if the exit code is |
| 106 // not required. |
105 bool WaitForExit(int* exit_code); | 107 bool WaitForExit(int* exit_code); |
106 | 108 |
107 // Same as WaitForExit() but only waits for up to |timeout|. | 109 // Same as WaitForExit() but only waits for up to |timeout|. |
| 110 // NOTE: |exit_code| is optional, nullptr can be passed if the exit code |
| 111 // is not required. |
108 bool WaitForExitWithTimeout(TimeDelta timeout, int* exit_code); | 112 bool WaitForExitWithTimeout(TimeDelta timeout, int* exit_code); |
109 | 113 |
110 // A process is backgrounded when it's priority is lower than normal. | 114 // A process is backgrounded when it's priority is lower than normal. |
111 // Return true if this process is backgrounded, false otherwise. | 115 // Return true if this process is backgrounded, false otherwise. |
112 bool IsProcessBackgrounded() const; | 116 bool IsProcessBackgrounded() const; |
113 | 117 |
114 // Set a process as backgrounded. If value is true, the priority of the | 118 // Set a process as backgrounded. If value is true, the priority of the |
115 // process will be lowered. If value is false, the priority of the process | 119 // process will be lowered. If value is false, the priority of the process |
116 // will be made "normal" - equivalent to default process priority. | 120 // will be made "normal" - equivalent to default process priority. |
117 // Returns true if the priority was changed, false otherwise. | 121 // Returns true if the priority was changed, false otherwise. |
118 bool SetProcessBackgrounded(bool value); | 122 bool SetProcessBackgrounded(bool value); |
119 | 123 |
120 // Returns an integer representing the priority of a process. The meaning | 124 // Returns an integer representing the priority of a process. The meaning |
121 // of this value is OS dependent. | 125 // of this value is OS dependent. |
122 int GetPriority() const; | 126 int GetPriority() const; |
123 | 127 |
124 private: | 128 private: |
125 #if defined(OS_WIN) | 129 #if defined(OS_WIN) |
126 bool is_current_process_; | 130 bool is_current_process_; |
127 win::ScopedHandle process_; | 131 win::ScopedHandle process_; |
128 #else | 132 #else |
129 ProcessHandle process_; | 133 ProcessHandle process_; |
130 #endif | 134 #endif |
131 }; | 135 }; |
132 | 136 |
133 } // namespace base | 137 } // namespace base |
134 | 138 |
135 #endif // BASE_PROCESS_PROCESS_H_ | 139 #endif // BASE_PROCESS_PROCESS_H_ |
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