bef8d2d020
BUG=crbug/466784 R=juberti@webrtc.org, tommi@webrtc.org Review URL: https://webrtc-codereview.appspot.com/44669005 Cr-Commit-Position: refs/heads/master@{#8871}
34 lines
899 B
C++
34 lines
899 B
C++
/*
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* Copyright 2015 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "webrtc/base/criticalsection.h"
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#include "webrtc/base/checks.h"
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#include "webrtc/base/thread.h"
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namespace rtc {
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void GlobalLockPod::Lock() {
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while (AtomicOps::CompareAndSwap(&lock_acquired, 0, 1)) {
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Thread::SleepMs(0);
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}
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}
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void GlobalLockPod::Unlock() {
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int old_value = AtomicOps::CompareAndSwap(&lock_acquired, 1, 0);
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DCHECK_EQ(1, old_value) << "Unlock called without calling Lock first";
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}
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GlobalLock::GlobalLock() {
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lock_acquired = 0;
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}
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} // namespace rtc
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