Imported WebKit commit 7e538425aa020340619e927792f3d895061fb54b (http://svn.webkit.org/repository/webkit/trunk@116286)

1 files changed, 0 insertions, 142 deletions

diff --git a/Source/JavaScriptCore/wtf/ParallelJobsGeneric.cpp b/Source/JavaScriptCore/wtf/ParallelJobsGeneric.cpp
deleted file mode 100644
index 2cc0bc643..000000000
--- a/Source/JavaScriptCore/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)