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1 /* | |
2 * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. | |
3 * | |
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 | |
6 * tree. An additional intellectual property rights grant can be found | |
7 * in the file PATENTS. All contributing project authors may | |
8 * be found in the AUTHORS file in the root of the source tree. | |
9 */ | |
10 | |
11 #ifndef WEBRTC_SYSTEM_WRAPPERS_INTERFACE_CONDITION_VARIABLE_WRAPPER_H_ | |
12 #define WEBRTC_SYSTEM_WRAPPERS_INTERFACE_CONDITION_VARIABLE_WRAPPER_H_ | |
13 | |
14 namespace webrtc { | |
15 | |
16 class CriticalSectionWrapper; | |
17 | |
18 class ConditionVariableWrapper { | |
19 public: | |
20 // Factory method, constructor disabled. | |
21 static ConditionVariableWrapper* CreateConditionVariable(); | |
22 | |
23 virtual ~ConditionVariableWrapper() {} | |
24 | |
25 // Calling thread will atomically release crit_sect and wait until next | |
26 // some other thread calls Wake() or WakeAll(). | |
27 virtual void SleepCS(CriticalSectionWrapper& crit_sect) = 0; | |
28 | |
29 // Same as above but with a timeout. | |
30 virtual bool SleepCS(CriticalSectionWrapper& crit_sect, | |
31 unsigned long max_time_in_ms) = 0; | |
32 | |
33 // Wakes one thread calling SleepCS(). | |
34 virtual void Wake() = 0; | |
35 | |
36 // Wakes all threads calling SleepCS(). | |
37 virtual void WakeAll() = 0; | |
38 }; | |
39 | |
40 } // namespace webrtc | |
41 | |
42 #endif // WEBRTC_SYSTEM_WRAPPERS_INTERFACE_CONDITION_VARIABLE_WRAPPER_H_ | |
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