Index: Source/WTF/wtf/ThreadSafeRefCounted.h |
diff --git a/Source/WTF/wtf/ThreadSafeRefCounted.h b/Source/WTF/wtf/ThreadSafeRefCounted.h |
deleted file mode 100644 |
index 44035e54747a65b5d41fd10c41479f5358014386..0000000000000000000000000000000000000000 |
--- a/Source/WTF/wtf/ThreadSafeRefCounted.h |
+++ /dev/null |
@@ -1,150 +0,0 @@ |
-/* |
- * Copyright (C) 2007, 2008, 2010 Apple Inc. All rights reserved. |
- * Copyright (C) 2007 Justin Haygood (jhaygood@reaktix.com) |
- * |
- * 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. |
- * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of |
- * its contributors may be used to endorse or promote products derived |
- * from this software without specific prior written permission. |
- * |
- * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "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 APPLE OR ITS 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. |
- * |
- * |
- * Note: The implementations of InterlockedIncrement and InterlockedDecrement are based |
- * on atomic_increment and atomic_exchange_and_add from the Boost C++ Library. The license |
- * is virtually identical to the Apple license above but is included here for completeness. |
- * |
- * Boost Software License - Version 1.0 - August 17th, 2003 |
- * |
- * Permission is hereby granted, free of charge, to any person or organization |
- * obtaining a copy of the software and accompanying documentation covered by |
- * this license (the "Software") to use, reproduce, display, distribute, |
- * execute, and transmit the Software, and to prepare derivative works of the |
- * Software, and to permit third-parties to whom the Software is furnished to |
- * do so, all subject to the following: |
- * |
- * The copyright notices in the Software and this entire statement, including |
- * the above license grant, this restriction and the following disclaimer, |
- * must be included in all copies of the Software, in whole or in part, and |
- * all derivative works of the Software, unless such copies or derivative |
- * works are solely in the form of machine-executable object code generated by |
- * a source language processor. |
- * |
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
- * FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT |
- * SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE |
- * FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE, |
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
- * DEALINGS IN THE SOFTWARE. |
- */ |
- |
-#ifndef ThreadSafeRefCounted_h |
-#define ThreadSafeRefCounted_h |
- |
-#include <wtf/Platform.h> |
- |
-#include <wtf/Atomics.h> |
-#include <wtf/DynamicAnnotations.h> |
-#include <wtf/ThreadingPrimitives.h> |
- |
-namespace WTF { |
- |
-class ThreadSafeRefCountedBase { |
- WTF_MAKE_NONCOPYABLE(ThreadSafeRefCountedBase); |
- WTF_MAKE_FAST_ALLOCATED; |
-public: |
- ThreadSafeRefCountedBase(int initialRefCount = 1) |
- : m_refCount(initialRefCount) |
- { |
- } |
- |
- void ref() |
- { |
-#if USE(LOCKFREE_THREADSAFEREFCOUNTED) |
- atomicIncrement(&m_refCount); |
-#else |
- MutexLocker locker(m_mutex); |
- ++m_refCount; |
-#endif |
- } |
- |
- bool hasOneRef() |
- { |
- return refCount() == 1; |
- } |
- |
- int refCount() const |
- { |
-#if !USE(LOCKFREE_THREADSAFEREFCOUNTED) |
- MutexLocker locker(m_mutex); |
-#endif |
- return static_cast<int const volatile &>(m_refCount); |
- } |
- |
-protected: |
- // Returns whether the pointer should be freed or not. |
- bool derefBase() |
- { |
-#if USE(LOCKFREE_THREADSAFEREFCOUNTED) |
- WTF_ANNOTATE_HAPPENS_BEFORE(&m_refCount); |
- if (atomicDecrement(&m_refCount) <= 0) { |
- WTF_ANNOTATE_HAPPENS_AFTER(&m_refCount); |
- return true; |
- } |
-#else |
- int refCount; |
- { |
- MutexLocker locker(m_mutex); |
- --m_refCount; |
- refCount = m_refCount; |
- } |
- if (refCount <= 0) |
- return true; |
-#endif |
- return false; |
- } |
- |
-private: |
- int m_refCount; |
-#if !USE(LOCKFREE_THREADSAFEREFCOUNTED) |
- mutable Mutex m_mutex; |
-#endif |
-}; |
- |
-template<class T> class ThreadSafeRefCounted : public ThreadSafeRefCountedBase { |
-public: |
- void deref() |
- { |
- if (derefBase()) |
- delete static_cast<T*>(this); |
- } |
- |
-protected: |
- ThreadSafeRefCounted() |
- { |
- } |
-}; |
- |
-} // namespace WTF |
- |
-using WTF::ThreadSafeRefCounted; |
- |
-#endif // ThreadSafeRefCounted_h |