JavaScriptCore-1097.3.tar.gz

[apple/javascriptcore.git] / wtf / ParallelJobsLibdispatch.h

diff --git a/wtf/ParallelJobsLibdispatch.h b/wtf/ParallelJobsLibdispatch.h
deleted file mode 100644 (file)
index 687c771..0000000
--- a/wtf/ParallelJobsLibdispatch.h
+++ /dev/null
@@ -1,85 +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.
- */
-
-#ifndef ParallelJobsLibdispatch_h
-#define ParallelJobsLibdispatch_h
-
-#if ENABLE(THREADING_LIBDISPATCH)
-
-#include <dispatch/dispatch.h>
-
-namespace WTF {
-
-static const int maxParallelThreads = 2;
-
-class ParallelEnvironment {
-    WTF_MAKE_FAST_ALLOCATED;
-public:
-    typedef void (*ThreadFunction)(void*);
-
-    ParallelEnvironment(ThreadFunction threadFunction, size_t sizeOfParameter, int requestedJobNumber) :
-        m_threadFunction(threadFunction),
-        m_sizeOfParameter(sizeOfParameter)
-    {
-        if (!requestedJobNumber || requestedJobNumber > maxParallelThreads)
-            requestedJobNumber = maxParallelThreads;
-
-        ASSERT(requestedJobNumber > 0);
-
-        m_numberOfJobs = requestedJobNumber;
-    }
-
-    int numberOfJobs()
-    {
-        return m_numberOfJobs;
-    }
-
-    void execute(unsigned char* parameters)
-    {
-        // libdispatch is NOT supported inside a template
-        dispatch_queue_t parallelJobsQueue = dispatch_queue_create("ParallelJobs", 0);
-
-        for (int i = 0; i < m_numberOfJobs - 1; ++i) {
-            dispatch_async(parallelJobsQueue, ^{(*m_threadFunction)(parameters);});
-            parameters += m_sizeOfParameter;
-        }
-
-        // The work for the main thread. Wait until all jobs are done.
-        dispatch_sync(parallelJobsQueue, ^{(*m_threadFunction)(parameters);});
-    }
-
-private:
-    ThreadFunction m_threadFunction;
-    size_t m_sizeOfParameter;
-    int m_numberOfJobs;
-};
-
-} // namespace WTF
-
-#endif // ENABLE(THREADING_LIBDISPATCH)
-
-#endif // ParallelJobsLibdispatch_h