84 lines
2.0 KiB
C++
84 lines
2.0 KiB
C++
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/*
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This file is a part of the JThread package, which contains some object-
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oriented thread wrappers for different thread implementations.
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Copyright (c) 2000-2006 Jori Liesenborgs (jori.liesenborgs@gmail.com)
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files (the "Software"),
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to deal in the Software without restriction, including without limitation
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the rights to use, copy, modify, merge, publish, distribute, sublicense,
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and/or sell copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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*/
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// Windows std::mutex is much slower than the critical section API
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#if __cplusplus < 201103L || defined(_WIN32)
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#include "threading/mutex.h"
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#ifndef _WIN32
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#include <cassert>
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#endif
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#define UNUSED(expr) do { (void)(expr); } while (0)
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Mutex::Mutex()
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{
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#ifdef _WIN32
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InitializeCriticalSection(&mutex);
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#else
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int ret = pthread_mutex_init(&mutex, NULL);
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assert(!ret);
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UNUSED(ret);
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#endif
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}
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Mutex::~Mutex()
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{
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#ifdef _WIN32
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DeleteCriticalSection(&mutex);
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#else
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int ret = pthread_mutex_destroy(&mutex);
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assert(!ret);
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UNUSED(ret);
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#endif
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}
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void Mutex::lock()
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{
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#ifdef _WIN32
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EnterCriticalSection(&mutex);
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#else
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int ret = pthread_mutex_lock(&mutex);
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assert(!ret);
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UNUSED(ret);
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#endif
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}
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void Mutex::unlock()
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{
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#ifdef _WIN32
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LeaveCriticalSection(&mutex);
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#else
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int ret = pthread_mutex_unlock(&mutex);
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assert(!ret);
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UNUSED(ret);
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#endif
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}
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#endif
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