webrtc/system_wrappers/interface/condition_variable_wrapper.h

42 lines
1.4 KiB
C++

/*
* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef WEBRTC_SYSTEM_WRAPPERS_INTERFACE_CONDITION_VARIABLE_WRAPPER_H_
#define WEBRTC_SYSTEM_WRAPPERS_INTERFACE_CONDITION_VARIABLE_WRAPPER_H_
namespace webrtc {
class CriticalSectionWrapper;
class ConditionVariableWrapper
{
public:
// Factory method, constructor disabled.
static ConditionVariableWrapper* CreateConditionVariable();
virtual ~ConditionVariableWrapper() {}
// Calling thread will atomically release critSect and wait until next
// some other thread calls Wake() or WakeAll().
virtual void SleepCS(CriticalSectionWrapper& critSect) = 0;
// Same as above but with a timeout.
virtual bool SleepCS(CriticalSectionWrapper& critSect,
unsigned long maxTimeInMS) = 0;
// Wakes one thread calling SleepCS().
virtual void Wake() = 0;
// Wakes all threads calling SleepCS().
virtual void WakeAll() = 0;
};
} // namespace webrtc
#endif // WEBRTC_SYSTEM_WRAPPERS_INTERFACE_CONDITION_VARIABLE_WRAPPER_H_