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1 /* | 1 /* |
2 * Copyright 2004 The WebRTC Project Authors. All rights reserved. | 2 * Copyright 2004 The WebRTC Project Authors. All rights reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
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99 }; | 99 }; |
100 | 100 |
101 // A POD lock used to protect global variables. Do NOT use for other purposes. | 101 // A POD lock used to protect global variables. Do NOT use for other purposes. |
102 // No custom constructor or private data member should be added. | 102 // No custom constructor or private data member should be added. |
103 class LOCKABLE GlobalLockPod { | 103 class LOCKABLE GlobalLockPod { |
104 public: | 104 public: |
105 void Lock() EXCLUSIVE_LOCK_FUNCTION(); | 105 void Lock() EXCLUSIVE_LOCK_FUNCTION(); |
106 | 106 |
107 void Unlock() UNLOCK_FUNCTION(); | 107 void Unlock() UNLOCK_FUNCTION(); |
108 | 108 |
109 AtomicInt lock_acquired; | 109 volatile int lock_acquired; |
110 }; | 110 }; |
111 | 111 |
112 class GlobalLock : public GlobalLockPod {}; | 112 class GlobalLock : public GlobalLockPod { |
| 113 public: |
| 114 GlobalLock(); |
| 115 }; |
113 | 116 |
114 // GlobalLockScope, for serializing execution through a scope. | 117 // GlobalLockScope, for serializing execution through a scope. |
115 class SCOPED_LOCKABLE GlobalLockScope { | 118 class SCOPED_LOCKABLE GlobalLockScope { |
116 public: | 119 public: |
117 explicit GlobalLockScope(GlobalLockPod* lock) EXCLUSIVE_LOCK_FUNCTION(lock); | 120 explicit GlobalLockScope(GlobalLockPod* lock) EXCLUSIVE_LOCK_FUNCTION(lock); |
118 ~GlobalLockScope() UNLOCK_FUNCTION(); | 121 ~GlobalLockScope() UNLOCK_FUNCTION(); |
119 private: | 122 private: |
120 GlobalLockPod* const lock_; | 123 GlobalLockPod* const lock_; |
121 RTC_DISALLOW_COPY_AND_ASSIGN(GlobalLockScope); | 124 RTC_DISALLOW_COPY_AND_ASSIGN(GlobalLockScope); |
122 }; | 125 }; |
123 | 126 |
124 } // namespace rtc | 127 } // namespace rtc |
125 | 128 |
126 #endif // WEBRTC_BASE_CRITICALSECTION_H_ | 129 #endif // WEBRTC_BASE_CRITICALSECTION_H_ |
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