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70 lines
2.2 KiB
70 lines
2.2 KiB
/* -*-c++-*- OpenThreads library, Copyright (C) 2002 - 2007 The Open Thread Group |
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* |
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* This library is open source and may be redistributed and/or modified under |
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or |
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* (at your option) any later version. The full license is in LICENSE file |
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* included with this distribution, and on the openscenegraph.org website. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* OpenSceneGraph Public License for more details. |
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*/ |
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// |
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// ScopedLock and ReverseScopedLock templates |
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// ~~~~~~~ |
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// |
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#ifndef _ScopedLock_ |
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#define _ScopedLock_ |
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namespace OpenThreads{ |
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template <class M> class ScopedLock |
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{ |
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private: |
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M& m_lock; |
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ScopedLock(const ScopedLock&); // prevent copy |
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ScopedLock& operator=(const ScopedLock&); // prevent assign |
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public: |
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explicit ScopedLock(M& m):m_lock(m) {m_lock.lock();} |
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~ScopedLock(){m_lock.unlock();} |
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}; |
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template <class M> class ReverseScopedLock |
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{ |
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private: |
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M& m_lock; |
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ReverseScopedLock(const ReverseScopedLock&); // prevent copy |
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ReverseScopedLock& operator=(const ReverseScopedLock&); // prevent assign |
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public: |
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explicit ReverseScopedLock(M& m):m_lock(m) {m_lock.unlock();} |
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~ReverseScopedLock(){m_lock.lock();} |
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}; |
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template <class M> class ScopedPointerLock |
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{ |
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private: |
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M* m_lock; |
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ScopedPointerLock(const ScopedPointerLock&); // prevent copy |
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ScopedPointerLock& operator=(const ScopedPointerLock&); // prevent assign |
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public: |
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explicit ScopedPointerLock(M* m):m_lock(m) { if (m_lock) m_lock->lock();} |
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~ScopedPointerLock(){ if (m_lock) m_lock->unlock();} |
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}; |
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template <class M> class ReverseScopedPointerLock |
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{ |
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private: |
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M* m_lock; |
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ReverseScopedPointerLock(const ReverseScopedPointerLock&); // prevent copy |
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ReverseScopedPointerLock& operator=(const ReverseScopedPointerLock&); // prevent assign |
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public: |
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explicit ReverseScopedPointerLock(M* m):m_lock(m) { if (m_lock) m_lock->unlock();} |
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~ReverseScopedPointerLock(){ if (m_lock) m_lock->lock();} |
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}; |
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} |
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#endif
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