79 lines
2.2 KiB
C++
79 lines
2.2 KiB
C++
/*
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Copyright (c) 2009-2010 Christopher A. Taylor. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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* Neither the name of LibCat nor the names of its contributors may be used
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to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef CAT_MUTEX_HPP
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#define CAT_MUTEX_HPP
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#include <cat/Platform.hpp>
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#if defined(CAT_OS_WINDOWS)
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# include <cat/port/WindowsInclude.hpp>
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#else // use POSIX mutex library otherwise
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# include <pthread.h>
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#endif
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namespace cat {
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// Implements a mutex that is NOT reentrant (for speed)
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class Mutex
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{
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#if defined(CAT_OS_WINDOWS)
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CRITICAL_SECTION cs;
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#else
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int init_failure;
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pthread_mutex_t mx;
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#endif
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public:
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Mutex();
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~Mutex();
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bool Valid();
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bool Enter();
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bool Leave();
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};
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class AutoMutex
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{
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Mutex *_mutex;
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public:
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AutoMutex(Mutex &mutex);
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~AutoMutex();
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bool Release();
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};
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} // namespace cat
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#endif // CAT_MUTEX_HPP
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