/*
* 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 Threading_h
#define Threading_h
#include "wtf/WTFExport.h"
#include <stdint.h>
// For portability, we do not use thread-safe statics natively supported by some compilers (e.g. gcc).
#define AtomicallyInitializedStatic(T, name) \
WTF::lockAtomicallyInitializedStaticMutex(); \
static T name; \
WTF::unlockAtomicallyInitializedStaticMutex();
namespace WTF {
typedef uint32_t ThreadIdentifier;
typedef void (*ThreadFunction)(void* argument);
// Returns 0 if thread creation failed.
// The thread name must be a literal since on some platforms it's passed in to the thread.
WTF_EXPORT ThreadIdentifier createThread(ThreadFunction, void*, const char* threadName);
// Internal platform-specific createThread implementation.
WTF_EXPORT ThreadIdentifier createThreadInternal(ThreadFunction, void*, const char* threadName);
// Called in the thread during initialization.
// Helpful for platforms where the thread name must be set from within the thread.
WTF_EXPORT void initializeCurrentThreadInternal(const char* threadName);
WTF_EXPORT ThreadIdentifier currentThread();
WTF_EXPORT int waitForThreadCompletion(ThreadIdentifier);
WTF_EXPORT void detachThread(ThreadIdentifier);
WTF_EXPORT void yield();
WTF_EXPORT void lockAtomicallyInitializedStaticMutex();
WTF_EXPORT void unlockAtomicallyInitializedStaticMutex();
} // namespace WTF
using WTF::ThreadIdentifier;
using WTF::createThread;
using WTF::currentThread;
using WTF::detachThread;
using WTF::waitForThreadCompletion;
using WTF::yield;
#endif // Threading_h