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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 volatile int lock_acquired; | 109 AtomicInt lock_acquired; |
110 }; | 110 }; |
111 | 111 |
112 class GlobalLock : public GlobalLockPod { | 112 class GlobalLock : public GlobalLockPod {}; |
113 public: | |
114 GlobalLock(); | |
115 }; | |
116 | 113 |
117 // GlobalLockScope, for serializing execution through a scope. | 114 // GlobalLockScope, for serializing execution through a scope. |
118 class SCOPED_LOCKABLE GlobalLockScope { | 115 class SCOPED_LOCKABLE GlobalLockScope { |
119 public: | 116 public: |
120 explicit GlobalLockScope(GlobalLockPod* lock) EXCLUSIVE_LOCK_FUNCTION(lock); | 117 explicit GlobalLockScope(GlobalLockPod* lock) EXCLUSIVE_LOCK_FUNCTION(lock); |
121 ~GlobalLockScope() UNLOCK_FUNCTION(); | 118 ~GlobalLockScope() UNLOCK_FUNCTION(); |
122 private: | 119 private: |
123 GlobalLockPod* const lock_; | 120 GlobalLockPod* const lock_; |
124 RTC_DISALLOW_COPY_AND_ASSIGN(GlobalLockScope); | 121 RTC_DISALLOW_COPY_AND_ASSIGN(GlobalLockScope); |
125 }; | 122 }; |
126 | 123 |
127 } // namespace rtc | 124 } // namespace rtc |
128 | 125 |
129 #endif // WEBRTC_BASE_CRITICALSECTION_H_ | 126 #endif // WEBRTC_BASE_CRITICALSECTION_H_ |
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