third_party/blink/renderer/platform/wtf/threading.h

/*
 * Copyright (C) 2007, 2008, 2010 Apple Inc. All rights reserved.
 * Copyright (C) 2007 Justin Haygood (jhaygood@reaktix.com)
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1.  Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 * 2.  Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
 *     its contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_WTF_THREADING_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_WTF_THREADING_H_

#include <stdint.h>

#include "base/logging.h"
#include "build/build_config.h"
#include "third_party/blink/renderer/platform/wtf/type_traits.h"
#include "third_party/blink/renderer/platform/wtf/wtf_export.h"

namespace WTF {

#if defined(OS_WIN)
typedef uint32_t ThreadIdentifier;
#else
typedef intptr_t ThreadIdentifier;
#endif

namespace internal {
WTF_EXPORT ThreadIdentifier CurrentThreadSyscall();
}  // namespace internal

// Initializes global state required by |currentThread|.
// Needs to be called once during program execution, before |currentThread|.
WTF_EXPORT void InitializeCurrentThread();

WTF_EXPORT ThreadIdentifier CurrentThread();

#if DCHECK_IS_ON()
WTF_EXPORT bool IsBeforeThreadCreated();
WTF_EXPORT void WillCreateThread();
#endif

}  // namespace WTF

using WTF::ThreadIdentifier;
using WTF::CurrentThread;

#endif  // THIRD_PARTY_BLINK_RENDERER_PLATFORM_WTF_THREADING_H_