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100 lines
4.2 KiB
C++
Executable File
100 lines
4.2 KiB
C++
Executable File
/*
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* Copyright (C) 2007, 2008, 2010, 2014 Apple Inc. All rights reserved.
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* Copyright (C) 2007 Justin Haygood (jhaygood@reaktix.com)
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of Apple Inc. ("Apple") nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef Threading_h
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#define Threading_h
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// FIXME: Not sure why there are so many includes here.
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// Is this intended to be convenience so that others don't have to include the individual files?
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// Nothing in this header depends on Assertions, Atomics, Locker, Noncopyable, ThreadSafeRefCounted, or ThreadingPrimitives.
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#include <functional>
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#include <stdint.h>
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#include <wtf/Assertions.h>
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#include <wtf/Atomics.h>
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#include <wtf/Locker.h>
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#include <wtf/Noncopyable.h>
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#include <wtf/ThreadSafeRefCounted.h>
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#include <wtf/ThreadingPrimitives.h>
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namespace WTF {
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typedef uint32_t ThreadIdentifier;
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typedef void (*ThreadFunction)(void* argument);
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// This function must be called from the main thread. It is safe to call it repeatedly.
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// Darwin is an exception to this rule: it is OK to call it from any thread, the only
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// requirement is that the calls are not reentrant.
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WTF_EXPORT_PRIVATE void initializeThreading();
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// Returns 0 if thread creation failed.
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// The thread name must be a literal since on some platforms it's passed in to the thread.
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WTF_EXPORT_PRIVATE ThreadIdentifier createThread(const char* threadName, std::function<void()>);
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// Mark the current thread as requiring UI responsiveness.
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// relativePriority is a value in the range [-15, 0] where a lower value indicates a lower priority.
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WTF_EXPORT_PRIVATE void setCurrentThreadIsUserInteractive(int relativePriority = 0);
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WTF_EXPORT_PRIVATE void setCurrentThreadIsUserInitiated(int relativePriority = 0);
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WTF_EXPORT_PRIVATE ThreadIdentifier currentThread();
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WTF_EXPORT_PRIVATE void changeThreadPriority(ThreadIdentifier, int);
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WTF_EXPORT_PRIVATE int waitForThreadCompletion(ThreadIdentifier);
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WTF_EXPORT_PRIVATE void detachThread(ThreadIdentifier);
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// Deprecated function-pointer-based thread creation.
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WTF_EXPORT_PRIVATE ThreadIdentifier createThread(ThreadFunction, void*, const char* threadName);
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// Internal platform-specific createThread implementation.
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ThreadIdentifier createThreadInternal(ThreadFunction, void*, const char* threadName);
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// Called in the thread during initialization.
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// Helpful for platforms where the thread name must be set from within the thread.
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void initializeCurrentThreadInternal(const char* threadName);
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#if HAVE(QOS_CLASSES)
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WTF_EXPORT_PRIVATE void setGlobalMaxQOSClass(qos_class_t);
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WTF_EXPORT_PRIVATE qos_class_t adjustedQOSClass(qos_class_t);
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#endif
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} // namespace WTF
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using WTF::ThreadIdentifier;
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using WTF::createThread;
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using WTF::currentThread;
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using WTF::changeThreadPriority;
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using WTF::detachThread;
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using WTF::waitForThreadCompletion;
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#if HAVE(QOS_CLASSES)
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using WTF::setGlobalMaxQOSClass;
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using WTF::adjustedQOSClass;
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#endif
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#endif // Threading_h
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