mirror of
https://github.com/darlinghq/darling-WTF.git
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94 lines
2.8 KiB
C++
94 lines
2.8 KiB
C++
/*
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* Copyright (C) 2011 University of Szeged
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* Copyright (C) 2011 Gabor Loki <loki@webkit.org>
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* All rights reserved.
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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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* 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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*
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* THIS SOFTWARE IS PROVIDED BY UNIVERSITY OF SZEGED ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL UNIVERSITY OF SZEGED OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* 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
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef ParallelJobsGeneric_h
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#define ParallelJobsGeneric_h
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#if ENABLE(THREADING_GENERIC)
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#include <wtf/Condition.h>
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#include <wtf/Lock.h>
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#include <wtf/RefCounted.h>
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#include <wtf/Threading.h>
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namespace WTF {
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class ParallelEnvironment {
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WTF_MAKE_FAST_ALLOCATED;
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public:
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typedef void (*ThreadFunction)(void*);
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WTF_EXPORT_PRIVATE ParallelEnvironment(ThreadFunction, size_t sizeOfParameter, int requestedJobNumber);
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int numberOfJobs()
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{
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return m_numberOfJobs;
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}
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WTF_EXPORT_PRIVATE void execute(void* parameters);
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class ThreadPrivate : public RefCounted<ThreadPrivate> {
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public:
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bool tryLockFor(ParallelEnvironment*);
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void execute(ThreadFunction, void*);
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void waitForFinish();
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static Ref<ThreadPrivate> create()
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{
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return adoptRef(*new ThreadPrivate());
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}
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private:
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RefPtr<Thread> m_thread;
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bool m_running { false };
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ParallelEnvironment* m_parent { nullptr };
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mutable Lock m_mutex;
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Condition m_threadCondition;
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ThreadFunction m_threadFunction { nullptr };
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void* m_parameters { nullptr };
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};
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private:
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ThreadFunction m_threadFunction;
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size_t m_sizeOfParameter;
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int m_numberOfJobs;
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Vector< RefPtr<ThreadPrivate> > m_threads;
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static Vector< RefPtr<ThreadPrivate> >* s_threadPool;
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};
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} // namespace WTF
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#endif // ENABLE(THREADING_GENERIC)
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#endif // ParallelJobsGeneric_h
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