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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 
14 namespace base {
15 
Lock()16 Lock::Lock() : lock_() {
17 }
18 
~Lock()19 Lock::~Lock() {
20   DCHECK(owning_thread_ref_.is_null());
21 }
22 
AssertAcquired() const23 void Lock::AssertAcquired() const {
24   DCHECK(owning_thread_ref_ == PlatformThread::CurrentRef());
25 }
26 
CheckHeldAndUnmark()27 void Lock::CheckHeldAndUnmark() {
28   DCHECK(owning_thread_ref_ == PlatformThread::CurrentRef());
29   owning_thread_ref_ = PlatformThreadRef();
30 }
31 
CheckUnheldAndMark()32 void 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