1/* 2 * Copyright (c) 2014 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// Borrowed from Chromium's src/base/threading/thread_checker_impl.cc. 12 13#include "webrtc/base/thread_checker_impl.h" 14 15#include "webrtc/base/platform_thread.h" 16 17namespace rtc { 18 19ThreadCheckerImpl::ThreadCheckerImpl() : valid_thread_(CurrentThreadRef()) { 20} 21 22ThreadCheckerImpl::~ThreadCheckerImpl() { 23} 24 25bool ThreadCheckerImpl::CalledOnValidThread() const { 26 const PlatformThreadRef current_thread = CurrentThreadRef(); 27 CritScope scoped_lock(&lock_); 28 if (!valid_thread_) // Set if previously detached. 29 valid_thread_ = current_thread; 30 return IsThreadRefEqual(valid_thread_, current_thread); 31} 32 33void ThreadCheckerImpl::DetachFromThread() { 34 CritScope scoped_lock(&lock_); 35 valid_thread_ = 0; 36} 37 38} // namespace rtc 39