| 1 | /*
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| 2 | * Copyright (C) 2008 Apple Inc. All rights reserved.
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| 3 | *
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| 4 | * Redistribution and use in source and binary forms, with or without
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| 5 | * modification, are permitted provided that the following conditions
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| 6 | * are met:
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| 7 | *
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| 8 | * 1. Redistributions of source code must retain the above copyright
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| 9 | * notice, this list of conditions and the following disclaimer.
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| 10 | * 2. Redistributions in binary form must reproduce the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer in the
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| 12 | * documentation and/or other materials provided with the distribution.
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| 13 | * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
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| 14 | * its contributors may be used to endorse or promote products derived
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| 15 | * from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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| 18 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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| 19 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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| 20 | * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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| 21 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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| 22 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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| 23 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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| 24 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 | #ifndef Locker_h
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| 29 | #define Locker_h
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| 30 |
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| 31 | #include <wtf/Noncopyable.h>
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| 32 |
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| 33 | namespace WTF {
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| 34 |
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| 35 | template <typename T> class Locker : public Noncopyable {
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| 36 | public:
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| 37 | Locker(T& lockable) : m_lockable(lockable) { m_lockable.lock(); }
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| 38 | ~Locker() { m_lockable.unlock(); }
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| 39 | private:
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| 40 | T& m_lockable;
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| 41 | };
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| 42 |
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| 43 | }
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| 44 |
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| 45 | using WTF::Locker;
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| 46 |
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| 47 | #endif
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