1 /* 2 * Copyright 2020 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 RTC_BASE_SYNCHRONIZATION_MUTEX_ABSEIL_H_ 12 #define RTC_BASE_SYNCHRONIZATION_MUTEX_ABSEIL_H_ 13 14 #include "absl/synchronization/mutex.h" 15 #include "rtc_base/thread_annotations.h" 16 17 namespace webrtc { 18 19 class RTC_LOCKABLE MutexImpl final { 20 public: 21 MutexImpl() = default; 22 MutexImpl(const MutexImpl&) = delete; 23 MutexImpl& operator=(const MutexImpl&) = delete; 24 Lock()25 void Lock() RTC_EXCLUSIVE_LOCK_FUNCTION() { mutex_.Lock(); } TryLock()26 RTC_WARN_UNUSED_RESULT bool TryLock() RTC_EXCLUSIVE_TRYLOCK_FUNCTION(true) { 27 return mutex_.TryLock(); 28 } Unlock()29 void Unlock() RTC_UNLOCK_FUNCTION() { mutex_.Unlock(); } 30 31 private: 32 absl::Mutex mutex_; 33 }; 34 35 } // namespace webrtc 36 37 #endif // RTC_BASE_SYNCHRONIZATION_MUTEX_ABSEIL_H_ 38