32012f8c3a
This it to avoid requiring targets that include header files that in turn use SequenceTaskedChecker, to also have to define the macros needed by TaskQueue. BUG=webrtc:5687 Review-Url: https://codereview.webrtc.org/2145393003 Cr-Commit-Position: refs/heads/master@{#13482}
54 lines
1.6 KiB
C++
54 lines
1.6 KiB
C++
/*
|
|
* 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
|