lock.cc (1082B)
1 // Copyright 2011 The Chromium Authors 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 #include "base/threading/platform_thread.h" 13 #endif 14 15 #if DCHECK_IS_ON() 16 17 namespace base { 18 19 Lock::Lock() : lock_() { 20 } 21 22 Lock::~Lock() { 23 DCHECK(owning_thread_ref_.is_null()); 24 } 25 26 void Lock::AssertAcquired() const { 27 DCHECK_EQ(owning_thread_ref_, PlatformThread::CurrentRef()); 28 } 29 30 void Lock::AssertNotHeld() const { 31 DCHECK(owning_thread_ref_.is_null()); 32 } 33 34 void Lock::CheckHeldAndUnmark() { 35 DCHECK_EQ(owning_thread_ref_, PlatformThread::CurrentRef()); 36 owning_thread_ref_ = PlatformThreadRef(); 37 } 38 39 void Lock::CheckUnheldAndMark() { 40 DCHECK(owning_thread_ref_.is_null()); 41 owning_thread_ref_ = PlatformThread::CurrentRef(); 42 } 43 44 } // namespace base 45 46 #endif // DCHECK_IS_ON()