blob: 4a7455d3075baa0e1a52d63f8a63994fba2f7aae [file] [log] [blame]
henrik.lundin@webrtc.org1e3c5c22014-06-16 11:34:44 +00001/*
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/thread.h"
16
17namespace rtc {
18
19ThreadCheckerImpl::ThreadCheckerImpl()
20 : valid_thread_() {
21 EnsureThreadIdAssigned();
22}
23
24ThreadCheckerImpl::~ThreadCheckerImpl() {
25}
26
27bool ThreadCheckerImpl::CalledOnValidThread() const {
28 CritScope scoped_lock(&lock_);
29 EnsureThreadIdAssigned();
30 return valid_thread_->IsCurrent();
31}
32
33void ThreadCheckerImpl::DetachFromThread() {
34 CritScope scoped_lock(&lock_);
35 valid_thread_ = NULL;
36}
37
38void ThreadCheckerImpl::EnsureThreadIdAssigned() const {
39 if (!valid_thread_) {
40 valid_thread_ = Thread::Current();
41 }
42}
43
44} // namespace rtc