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| 1 /* | 1 /* |
| 2 * Copyright (C) 2013 Google, Inc. All Rights Reserved. | 2 * Copyright (C) 2013 Google, Inc. All Rights Reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
| 6 * are met: | 6 * are met: |
| 7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
| 8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
| 10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
| 11 * documentation and/or other materials provided with the distribution. | 11 * documentation and/or other materials provided with the distribution. |
| 12 * | 12 * |
| 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY | 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
| 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR | 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
| 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 24 */ | 24 */ |
| 25 | 25 |
| 26 #ifndef WTF_WeakPtr_h | 26 #ifndef WTF_WeakPtr_h |
| 27 #define WTF_WeakPtr_h | 27 #define WTF_WeakPtr_h |
| 28 | 28 |
| 29 #include <wtf/Noncopyable.h> | 29 #include "wtf/Noncopyable.h" |
| 30 #include <wtf/PassRefPtr.h> | 30 #include "wtf/PassRefPtr.h" |
| 31 #include <wtf/RefPtr.h> | 31 #include "wtf/RefPtr.h" |
| 32 #include <wtf/ThreadSafeRefCounted.h> | 32 #include "wtf/ThreadSafeRefCounted.h" |
| 33 #include <wtf/Threading.h> | 33 #include "wtf/Threading.h" |
| 34 | 34 |
| 35 namespace WTF { | 35 namespace WTF { |
| 36 | 36 |
| 37 template<typename T> | 37 template<typename T> |
| 38 class WeakReference : public ThreadSafeRefCounted<WeakReference<T> > { | 38 class WeakReference : public ThreadSafeRefCounted<WeakReference<T> > { |
| 39 WTF_MAKE_NONCOPYABLE(WeakReference<T>); | 39 WTF_MAKE_NONCOPYABLE(WeakReference<T>); |
| 40 WTF_MAKE_FAST_ALLOCATED; | 40 WTF_MAKE_FAST_ALLOCATED; |
| 41 public: | 41 public: |
| 42 static PassRefPtr<WeakReference<T> > create(T* ptr) { return adoptRef(new We
akReference(ptr)); } | 42 static PassRefPtr<WeakReference<T> > create(T* ptr) { return adoptRef(new We
akReference(ptr)); } |
| 43 static PassRefPtr<WeakReference<T> > createUnbound() { return adoptRef(new W
eakReference()); } | 43 static PassRefPtr<WeakReference<T> > createUnbound() { return adoptRef(new W
eakReference()); } |
| (...skipping 79 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 123 RefPtr<WeakReference<T> > m_ref; | 123 RefPtr<WeakReference<T> > m_ref; |
| 124 }; | 124 }; |
| 125 | 125 |
| 126 } // namespace WTF | 126 } // namespace WTF |
| 127 | 127 |
| 128 using WTF::WeakPtr; | 128 using WTF::WeakPtr; |
| 129 using WTF::WeakPtrFactory; | 129 using WTF::WeakPtrFactory; |
| 130 using WTF::WeakReference; | 130 using WTF::WeakReference; |
| 131 | 131 |
| 132 #endif | 132 #endif |
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