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| 1 /* | |
| 2 * Copyright (C) 2011 University of Szeged | |
| 3 * Copyright (C) 2011 Gabor Loki <loki@webkit.org> | |
| 4 * All rights reserved. | |
| 5 * | |
| 6 * Redistribution and use in source and binary forms, with or without | |
| 7 * modification, are permitted provided that the following conditions | |
| 8 * are met: | |
| 9 * 1. Redistributions of source code must retain the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer. | |
| 11 * 2. Redistributions in binary form must reproduce the above copyright | |
| 12 * notice, this list of conditions and the following disclaimer in the | |
| 13 * documentation and/or other materials provided with the distribution. | |
| 14 * | |
| 15 * THIS SOFTWARE IS PROVIDED BY UNIVERSITY OF SZEGED ``AS IS'' AND ANY | |
| 16 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL UNIVERSITY OF SZEGED OR | |
| 19 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 22 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 23 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 26 */ | |
| 27 | |
| 28 #ifndef ParallelJobsGeneric_h | |
| 29 #define ParallelJobsGeneric_h | |
| 30 | |
| 31 #if ENABLE(THREADING_GENERIC) | |
| 32 | |
| 33 #include <wtf/RefCounted.h> | |
| 34 #include <wtf/Threading.h> | |
| 35 | |
| 36 namespace WTF { | |
| 37 | |
| 38 class ParallelEnvironment { | |
| 39 WTF_MAKE_FAST_ALLOCATED; | |
| 40 public: | |
| 41 typedef void (*ThreadFunction)(void*); | |
| 42 | |
| 43 WTF_EXPORT_PRIVATE ParallelEnvironment(ThreadFunction, size_t sizeOfParamete
r, int requestedJobNumber); | |
| 44 | |
| 45 int numberOfJobs() | |
| 46 { | |
| 47 return m_numberOfJobs; | |
| 48 } | |
| 49 | |
| 50 WTF_EXPORT_PRIVATE void execute(void* parameters); | |
| 51 | |
| 52 class ThreadPrivate : public RefCounted<ThreadPrivate> { | |
| 53 public: | |
| 54 ThreadPrivate() | |
| 55 : m_threadID(0) | |
| 56 , m_running(false) | |
| 57 , m_parent(0) | |
| 58 { | |
| 59 } | |
| 60 | |
| 61 bool tryLockFor(ParallelEnvironment*); | |
| 62 | |
| 63 void execute(ThreadFunction, void*); | |
| 64 | |
| 65 void waitForFinish(); | |
| 66 | |
| 67 static PassRefPtr<ThreadPrivate> create() | |
| 68 { | |
| 69 return adoptRef(new ThreadPrivate()); | |
| 70 } | |
| 71 | |
| 72 static void workerThread(void*); | |
| 73 | |
| 74 private: | |
| 75 ThreadIdentifier m_threadID; | |
| 76 bool m_running; | |
| 77 ParallelEnvironment* m_parent; | |
| 78 | |
| 79 mutable Mutex m_mutex; | |
| 80 ThreadCondition m_threadCondition; | |
| 81 | |
| 82 ThreadFunction m_threadFunction; | |
| 83 void* m_parameters; | |
| 84 }; | |
| 85 | |
| 86 private: | |
| 87 ThreadFunction m_threadFunction; | |
| 88 size_t m_sizeOfParameter; | |
| 89 int m_numberOfJobs; | |
| 90 | |
| 91 Vector< RefPtr<ThreadPrivate> > m_threads; | |
| 92 static Vector< RefPtr<ThreadPrivate> >* s_threadPool; | |
| 93 }; | |
| 94 | |
| 95 } // namespace WTF | |
| 96 | |
| 97 #endif // ENABLE(THREADING_GENERIC) | |
| 98 | |
| 99 | |
| 100 #endif // ParallelJobsGeneric_h | |
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Chromium Code Reviews
Issue 14238015:
Move Source/WTF/wtf to Source/wtf (Closed)
Base URL: svn://svn.chromium.org/blink/trunk