akalin@chromium.org | 4fb2deb | 2012-12-28 04:58:00 +0900 | [diff] [blame] | 1 | // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #include "base/sequence_checker_impl.h" |
| 6 | |
| 7 | #include "base/sequenced_task_runner.h" |
| 8 | |
| 9 | namespace base { |
| 10 | |
| 11 | SequenceCheckerImpl::SequenceCheckerImpl( |
| 12 | const scoped_refptr<SequencedTaskRunner>& sequenced_task_runner) |
| 13 | : sequenced_task_runner_(sequenced_task_runner) {} |
| 14 | |
| 15 | SequenceCheckerImpl::~SequenceCheckerImpl() {} |
| 16 | |
| 17 | bool SequenceCheckerImpl::CalledOnValidSequence() const { |
| 18 | AutoLock auto_lock(lock_); |
| 19 | return sequenced_task_runner_.get() ? |
| 20 | sequenced_task_runner_->RunsTasksOnCurrentThread() : |
| 21 | thread_checker_.CalledOnValidThread(); |
| 22 | } |
| 23 | |
| 24 | void SequenceCheckerImpl::ChangeSequence( |
| 25 | const scoped_refptr<SequencedTaskRunner>& sequenced_task_runner) { |
| 26 | AutoLock auto_lock(lock_); |
| 27 | sequenced_task_runner_ = sequenced_task_runner; |
| 28 | thread_checker_.DetachFromThread(); |
| 29 | } |
| 30 | |
| 31 | } // namespace base |