49 lines
1.2 KiB
C++
49 lines
1.2 KiB
C++
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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// This file is used for debugging assertion support. The Lock class
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// is functionally a wrapper around the LockImpl class, so the only
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// real intelligence in the class is in the debugging logic.
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#if !defined(NDEBUG)
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#include "base/synchronization/lock.h"
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#include "base/logging.h"
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namespace base {
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const PlatformThreadId kNoThreadId = static_cast<PlatformThreadId>(0);
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Lock::Lock() : lock_() {
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owned_by_thread_ = false;
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owning_thread_id_ = kNoThreadId;
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}
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Lock::~Lock() {
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DCHECK(!owned_by_thread_);
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DCHECK_EQ(kNoThreadId, owning_thread_id_);
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}
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void Lock::AssertAcquired() const {
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DCHECK(owned_by_thread_);
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DCHECK_EQ(owning_thread_id_, PlatformThread::CurrentId());
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}
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void Lock::CheckHeldAndUnmark() {
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DCHECK(owned_by_thread_);
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DCHECK_EQ(owning_thread_id_, PlatformThread::CurrentId());
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owned_by_thread_ = false;
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owning_thread_id_ = kNoThreadId;
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}
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void Lock::CheckUnheldAndMark() {
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DCHECK(!owned_by_thread_);
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owned_by_thread_ = true;
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owning_thread_id_ = PlatformThread::CurrentId();
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}
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} // namespace base
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#endif // NDEBUG
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