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58 lines
1.8 KiB
C++
58 lines
1.8 KiB
C++
/// \file
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/// \brief \b [Internal] Encapsulates a mutex
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///
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/// This file is part of RakNet Copyright 2003 Kevin Jenkins.
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///
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/// Usage of RakNet is subject to the appropriate license agreement.
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/// Creative Commons Licensees are subject to the
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/// license found at
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/// http://creativecommons.org/licenses/by-nc/2.5/
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/// Single application licensees are subject to the license found at
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/// http://www.rakkarsoft.com/SingleApplicationLicense.html
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/// Custom license users are subject to the terms therein.
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/// GPL license users are subject to the GNU General Public
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/// License as published by the Free
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/// Software Foundation; either version 2 of the License, or (at your
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/// option) any later version.
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#ifndef __SIMPLE_MUTEX_H
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#define __SIMPLE_MUTEX_H
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#ifdef _COMPATIBILITY_1
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#include "Compatibility1Includes.h"
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#elif defined(_WIN32)
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#include <windows.h>
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#else
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#include <pthread.h>
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#include <sys/types.h>
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#endif
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#include "Export.h"
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/// \brief An easy to use mutex.
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///
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/// I wrote this because the version that comes with Windows is too complicated and requires too much code to use.
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/// @remark Previously I used this everywhere, and in fact for a year or two RakNet was totally threadsafe. While doing profiling, I saw that this function was incredibly slow compared to the blazing performance of everything else, so switched to single producer / consumer everywhere. Now the user thread of RakNet is not threadsafe, but it's 100X faster than before.
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class RAK_DLL_EXPORT SimpleMutex
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{
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public:
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/// Constructor
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SimpleMutex();
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// Destructor
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~SimpleMutex();
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// Locks the mutex. Slow!
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void Lock(void);
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// Unlocks the mutex.
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void Unlock(void);
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private:
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#ifdef _WIN32
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CRITICAL_SECTION criticalSection; /// Docs say this is faster than a mutex for single process access
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#else
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pthread_mutex_t hMutex;
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#endif
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};
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#endif
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