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| 1 /* | 1 /* | 
| 2  * Copyright (C) 2008 Apple Inc. All rights reserved. | 2  * Copyright (C) 2008 Apple 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  * | 7  * | 
| 8  * 1.  Redistributions of source code must retain the above copyright | 8  * 1.  Redistributions of source code must retain the above copyright | 
| 9  *     notice, this list of conditions and the following disclaimer. | 9  *     notice, this list of conditions and the following disclaimer. | 
| 10  * 2.  Redistributions in binary form must reproduce the above copyright | 10  * 2.  Redistributions in binary form must reproduce the above copyright | 
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| 21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | 21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | 
| 22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | 22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | 
| 23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | 23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | 
| 24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 
| 25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | 25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | 
| 26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 
| 27  */ | 27  */ | 
| 28 #ifndef Locker_h | 28 #ifndef Locker_h | 
| 29 #define Locker_h | 29 #define Locker_h | 
| 30 | 30 | 
| 31 #include "wtf/Allocator.h" | 31 #include "platform/wtf/Allocator.h" | 
| 32 #include "wtf/Noncopyable.h" | 32 #include "platform/wtf/Noncopyable.h" | 
| 33 | 33 | 
| 34 namespace WTF { | 34 namespace WTF { | 
| 35 | 35 | 
| 36 template <typename T> | 36 template <typename T> | 
| 37 class Locker final { | 37 class Locker final { | 
| 38   STACK_ALLOCATED(); | 38   STACK_ALLOCATED(); | 
| 39   WTF_MAKE_NONCOPYABLE(Locker); | 39   WTF_MAKE_NONCOPYABLE(Locker); | 
| 40 | 40 | 
| 41  public: | 41  public: | 
| 42   Locker(T& lockable) : m_lockable(lockable) { m_lockable.lock(); } | 42   Locker(T& lockable) : m_lockable(lockable) { m_lockable.lock(); } | 
| 43   ~Locker() { m_lockable.unlock(); } | 43   ~Locker() { m_lockable.unlock(); } | 
| 44 | 44 | 
| 45  private: | 45  private: | 
| 46   T& m_lockable; | 46   T& m_lockable; | 
| 47 }; | 47 }; | 
| 48 | 48 | 
| 49 }  // namespace WTF | 49 }  // namespace WTF | 
| 50 | 50 | 
| 51 using WTF::Locker; | 51 using WTF::Locker; | 
| 52 | 52 | 
| 53 #endif | 53 #endif | 
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