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#if !defined(NDEBUG)
10
11#include "base/synchronization/lock.h"
12#include "base/logging.h"
13
14namespace base {
15
16Lock::Lock() : lock_() {
17}
18
19Lock::~Lock() {
20  DCHECK(owning_thread_ref_.is_null());
21}
22
23void Lock::AssertAcquired() const {
24  DCHECK(owning_thread_ref_ == PlatformThread::CurrentRef());
25}
26
27void Lock::CheckHeldAndUnmark() {
28  DCHECK(owning_thread_ref_ == PlatformThread::CurrentRef());
29  owning_thread_ref_ = PlatformThreadRef();
30}
31
32void Lock::CheckUnheldAndMark() {
33  DCHECK(owning_thread_ref_.is_null());
34  owning_thread_ref_ = PlatformThread::CurrentRef();
35}
36
37}  // namespace base
38
39#endif  // NDEBUG
40