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_INCLUDE_CONDITION_VARIABLE_WRAPPER_H_ 12 #define WEBRTC_SYSTEM_WRAPPERS_INCLUDE_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_INCLUDE_CONDITION_VARIABLE_WRAPPER_H_ 43
