webrtc/rtc_base/synchronization/mutex_abseil.h
Niels Möller 5b747233a3 Add method Mutex::AssertHeld
Acts as a compile time annotation, with corresponding run-time check
only when DCHECKs are enabled, and built using absl or pthreads mutexes.

Bug: None
Change-Id: Ie044c1ea1e576df71d634301f7df9d75cdf10b1b
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/226328
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Ivo Creusen <ivoc@webrtc.org>
Commit-Queue: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#34555}
2021-07-27 07:46:32 +00:00

43 lines
1.2 KiB
C++

/*
* Copyright 2020 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 RTC_BASE_SYNCHRONIZATION_MUTEX_ABSEIL_H_
#define RTC_BASE_SYNCHRONIZATION_MUTEX_ABSEIL_H_
#include "absl/base/attributes.h"
#include "absl/synchronization/mutex.h"
#include "rtc_base/thread_annotations.h"
namespace webrtc {
class RTC_LOCKABLE MutexImpl final {
public:
MutexImpl() = default;
MutexImpl(const MutexImpl&) = delete;
MutexImpl& operator=(const MutexImpl&) = delete;
void Lock() RTC_EXCLUSIVE_LOCK_FUNCTION() { mutex_.Lock(); }
ABSL_MUST_USE_RESULT bool TryLock() RTC_EXCLUSIVE_TRYLOCK_FUNCTION(true) {
return mutex_.TryLock();
}
void AssertHeld() const RTC_ASSERT_EXCLUSIVE_LOCK() {
#if RTC_DCHECK_IS_ON
mutex_.AssertHeld();
#endif
}
void Unlock() RTC_UNLOCK_FUNCTION() { mutex_.Unlock(); }
private:
absl::Mutex mutex_;
};
} // namespace webrtc
#endif // RTC_BASE_SYNCHRONIZATION_MUTEX_ABSEIL_H_