blob: 615f44c2b52e8562c182159748b418c4b40729ce [file] [log] [blame]
/*
* Copyright (c) 2016 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.
*/
#include "webrtc/base/sequenced_task_checker_impl.h"
#include "webrtc/base/platform_thread.h"
#include "webrtc/base/sequenced_task_checker.h"
#include "webrtc/base/task_queue.h"
namespace rtc {
SequencedTaskCheckerImpl::SequencedTaskCheckerImpl()
: attached_(true), valid_queue_(TaskQueue::Current()) {}
SequencedTaskCheckerImpl::~SequencedTaskCheckerImpl() {}
bool SequencedTaskCheckerImpl::CalledSequentially() const {
TaskQueue* current_queue = TaskQueue::Current();
CritScope scoped_lock(&lock_);
if (!attached_) { // true if previously detached.
valid_queue_ = current_queue;
attached_ = true;
}
if (!valid_queue_)
return thread_checker_.CalledOnValidThread();
return valid_queue_ == current_queue;
}
void SequencedTaskCheckerImpl::Detach() {
CritScope scoped_lock(&lock_);
attached_ = false;
valid_queue_ = nullptr;
thread_checker_.DetachFromThread();
}
namespace internal {
SequencedTaskCheckerScope::SequencedTaskCheckerScope(
const SequencedTaskChecker* checker) {
RTC_DCHECK(checker->CalledSequentially());
}
SequencedTaskCheckerScope::~SequencedTaskCheckerScope() {}
} // namespace internal
} // namespace rtc