cef/libcef_dll/base/cef_lock.cc

47 lines
1.3 KiB
C++

// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// This file is used for debugging assertion support. The Lock class
// is functionally a wrapper around the LockImpl class, so the only
// real intelligence in the class is in the debugging logic.
#include "include/base/cef_lock.h"
#include "include/base/cef_logging.h"
#if DCHECK_IS_ON()
namespace base {
namespace cef_internal {
Lock::Lock() : lock_() {}
Lock::~Lock() {
DCHECK(owning_thread_ref_.is_null());
}
void Lock::AssertAcquired() const {
DCHECK(owning_thread_ref_ == PlatformThread::CurrentRef());
}
void Lock::CheckHeldAndUnmark() {
DCHECK(owning_thread_ref_ == PlatformThread::CurrentRef());
owning_thread_ref_ = PlatformThreadRef();
}
void Lock::CheckUnheldAndMark() {
// Hitting this DCHECK means that your code is trying to re-enter a lock that
// is already held. The Chromium Lock implementation is not reentrant.
// See "Why can the holder of a Lock not reacquire it?" at
// http://www.chromium.org/developers/lock-and-condition-variable for more
// information.
DCHECK(owning_thread_ref_.is_null());
owning_thread_ref_ = PlatformThread::CurrentRef();
}
} // namespace cef_internal
} // namespace base
#endif // DCHECK_IS_ON()