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57 lines
1.5 KiB
C++
57 lines
1.5 KiB
C++
/*****************************************************************************
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* Author: Valient Gough <vgough@pobox.com>
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*
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*****************************************************************************
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* Copyright (c) 2003, Valient Gough
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*
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
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* for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _Mutex_incl_
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#define _Mutex_incl_
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#include <pthread.h>
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namespace encfs {
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class Lock {
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public:
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Lock(pthread_mutex_t &mutex);
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~Lock();
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// leave the lock as it is. When the Lock wrapper is destroyed, it
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// will do nothing with the pthread mutex.
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void leave();
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private:
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Lock(const Lock &src); // not allowed
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Lock &operator=(const Lock &src); // not allowed
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pthread_mutex_t *_mutex;
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};
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inline Lock::Lock(pthread_mutex_t &mutex) : _mutex(&mutex) {
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pthread_mutex_lock(_mutex);
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}
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inline Lock::~Lock() {
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if (_mutex) pthread_mutex_unlock(_mutex);
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}
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inline void Lock::leave() { _mutex = 0; }
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} // namespace encfs
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#endif
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