1// Copyright (c) 2011 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// This file is used for debugging assertion support.  The Lock class
6// is functionally a wrapper around the LockImpl class, so the only
7// real intelligence in the class is in the debugging logic.
8
9#include "base/synchronization/lock.h"
10
11#if DCHECK_IS_ON()
12
13namespace base {
14
15Lock::Lock() : lock_() {
16}
17
18Lock::~Lock() {
19  DCHECK(owning_thread_ref_.is_null());
20}
21
22void Lock::AssertAcquired() const {
23  DCHECK(owning_thread_ref_ == PlatformThread::CurrentRef());
24}
25
26void Lock::CheckHeldAndUnmark() {
27  DCHECK(owning_thread_ref_ == PlatformThread::CurrentRef());
28  owning_thread_ref_ = PlatformThreadRef();
29}
30
31void Lock::CheckUnheldAndMark() {
32  DCHECK(owning_thread_ref_.is_null());
33  owning_thread_ref_ = PlatformThread::CurrentRef();
34}
35
36}  // namespace base
37
38#endif  // DCHECK_IS_ON()
39