2 * Copyright (C) 2011 University of Szeged
3 * Copyright (C) 2011 Gabor Loki <loki@webkit.org>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
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.
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.
28 #ifndef ParallelJobsGeneric_h
29 #define ParallelJobsGeneric_h
31 #if ENABLE(THREADING_GENERIC)
33 #include <wtf/RefCounted.h>
34 #include <wtf/Threading.h>
38 class ParallelEnvironment {
39 WTF_MAKE_FAST_ALLOCATED;
41 typedef void (*ThreadFunction)(void*);
43 WTF_EXPORT_PRIVATE ParallelEnvironment(ThreadFunction, size_t sizeOfParameter, int requestedJobNumber);
47 return m_numberOfJobs;
50 WTF_EXPORT_PRIVATE void execute(void* parameters);
52 class ThreadPrivate : public RefCounted<ThreadPrivate> {
61 bool tryLockFor(ParallelEnvironment*);
63 void execute(ThreadFunction, void*);
67 static PassRefPtr<ThreadPrivate> create()
69 return adoptRef(new ThreadPrivate());
72 static void workerThread(void*);
75 ThreadIdentifier m_threadID;
77 ParallelEnvironment* m_parent;
79 mutable Mutex m_mutex;
80 ThreadCondition m_threadCondition;
82 ThreadFunction m_threadFunction;
87 ThreadFunction m_threadFunction;
88 size_t m_sizeOfParameter;
91 Vector< RefPtr<ThreadPrivate> > m_threads;
92 static Vector< RefPtr<ThreadPrivate> >* s_threadPool;
97 #endif // ENABLE(THREADING_GENERIC)
100 #endif // ParallelJobsGeneric_h