Index: Source/WTF/wtf/ParallelJobsGeneric.cpp |
diff --git a/Source/WTF/wtf/ParallelJobsGeneric.cpp b/Source/WTF/wtf/ParallelJobsGeneric.cpp |
deleted file mode 100644 |
index 2cc0bc64378761f4df2057fe65d243fd0794b401..0000000000000000000000000000000000000000 |
--- a/Source/WTF/wtf/ParallelJobsGeneric.cpp |
+++ /dev/null |
@@ -1,142 +0,0 @@ |
-/* |
- * Copyright (C) 2011 University of Szeged |
- * Copyright (C) 2011 Gabor Loki <loki@webkit.org> |
- * All rights reserved. |
- * |
- * 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. |
- * |
- * THIS SOFTWARE IS PROVIDED BY UNIVERSITY OF SZEGED ``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 UNIVERSITY OF SZEGED OR |
- * 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. |
- */ |
- |
-#include "config.h" |
- |
-#if ENABLE(THREADING_GENERIC) |
- |
-#include "ParallelJobs.h" |
-#include <wtf/NumberOfCores.h> |
- |
-namespace WTF { |
- |
-Vector< RefPtr<ParallelEnvironment::ThreadPrivate> >* ParallelEnvironment::s_threadPool = 0; |
- |
-ParallelEnvironment::ParallelEnvironment(ThreadFunction threadFunction, size_t sizeOfParameter, int requestedJobNumber) : |
- m_threadFunction(threadFunction), |
- m_sizeOfParameter(sizeOfParameter) |
-{ |
- ASSERT_ARG(requestedJobNumber, requestedJobNumber >= 1); |
- |
- int maxNumberOfCores = numberOfProcessorCores(); |
- |
- if (!requestedJobNumber || requestedJobNumber > maxNumberOfCores) |
- requestedJobNumber = static_cast<unsigned>(maxNumberOfCores); |
- |
- if (!s_threadPool) |
- s_threadPool = new Vector< RefPtr<ThreadPrivate> >(); |
- |
- // The main thread should be also a worker. |
- int maxNumberOfNewThreads = requestedJobNumber - 1; |
- |
- for (int i = 0; i < maxNumberOfCores && m_threads.size() < static_cast<unsigned>(maxNumberOfNewThreads); ++i) { |
- if (s_threadPool->size() < static_cast<unsigned>(i) + 1U) |
- s_threadPool->append(ThreadPrivate::create()); |
- |
- if ((*s_threadPool)[i]->tryLockFor(this)) |
- m_threads.append((*s_threadPool)[i]); |
- } |
- |
- m_numberOfJobs = m_threads.size() + 1; |
-} |
- |
-void ParallelEnvironment::execute(void* parameters) |
-{ |
- unsigned char* currentParameter = static_cast<unsigned char*>(parameters); |
- size_t i; |
- for (i = 0; i < m_threads.size(); ++i) { |
- m_threads[i]->execute(m_threadFunction, currentParameter); |
- currentParameter += m_sizeOfParameter; |
- } |
- |
- // The work for the main thread. |
- (*m_threadFunction)(currentParameter); |
- |
- // Wait until all jobs are done. |
- for (i = 0; i < m_threads.size(); ++i) |
- m_threads[i]->waitForFinish(); |
-} |
- |
-bool ParallelEnvironment::ThreadPrivate::tryLockFor(ParallelEnvironment* parent) |
-{ |
- bool locked = m_mutex.tryLock(); |
- |
- if (!locked) |
- return false; |
- |
- if (m_parent) { |
- m_mutex.unlock(); |
- return false; |
- } |
- |
- if (!m_threadID) |
- m_threadID = createThread(&ParallelEnvironment::ThreadPrivate::workerThread, this, "Parallel worker"); |
- |
- if (m_threadID) |
- m_parent = parent; |
- |
- m_mutex.unlock(); |
- return m_threadID; |
-} |
- |
-void ParallelEnvironment::ThreadPrivate::execute(ThreadFunction threadFunction, void* parameters) |
-{ |
- MutexLocker lock(m_mutex); |
- |
- m_threadFunction = threadFunction; |
- m_parameters = parameters; |
- m_running = true; |
- m_threadCondition.signal(); |
-} |
- |
-void ParallelEnvironment::ThreadPrivate::waitForFinish() |
-{ |
- MutexLocker lock(m_mutex); |
- |
- while (m_running) |
- m_threadCondition.wait(m_mutex); |
-} |
- |
-void ParallelEnvironment::ThreadPrivate::workerThread(void* threadData) |
-{ |
- ThreadPrivate* sharedThread = reinterpret_cast<ThreadPrivate*>(threadData); |
- MutexLocker lock(sharedThread->m_mutex); |
- |
- while (sharedThread->m_threadID) { |
- if (sharedThread->m_running) { |
- (*sharedThread->m_threadFunction)(sharedThread->m_parameters); |
- sharedThread->m_running = false; |
- sharedThread->m_parent = 0; |
- sharedThread->m_threadCondition.signal(); |
- } |
- |
- sharedThread->m_threadCondition.wait(sharedThread->m_mutex); |
- } |
-} |
- |
-} // namespace WTF |
-#endif // ENABLE(THREADING_GENERIC) |