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handheld/project/lib_projects/raknet/jni/RaknetSources/SimpleMutex.h

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+/// \file
+/// \brief \b [Internal] Encapsulates a mutex
+///
+/// This file is part of RakNet Copyright 2003 Jenkins Software LLC
+///
+/// Usage of RakNet is subject to the appropriate license agreement.
+
+
+#ifndef __SIMPLE_MUTEX_H
+#define __SIMPLE_MUTEX_H
+
+#include "RakMemoryOverride.h"
+
+
+#if   defined(_WIN32)
+#include "WindowsIncludes.h"
+
+
+#else
+#include <pthread.h>
+#include <sys/types.h>
+#endif
+#include "Export.h"
+
+namespace RakNet
+{
+
+/// \brief An easy to use mutex.
+/// 
+/// I wrote this because the version that comes with Windows is too complicated and requires too much code to use.
+/// @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.
+class RAK_DLL_EXPORT SimpleMutex
+{
+public:
+
+	// Constructor
+	SimpleMutex();
+
+	// Destructor
+	~SimpleMutex();
+
+	// Locks the mutex.  Slow!
+	void Lock(void);
+
+	// Unlocks the mutex.
+	void Unlock(void);
+
+
+
+
+
+
+
+private:
+	void Init(void);
+#ifdef _WIN32
+	CRITICAL_SECTION criticalSection; /// Docs say this is faster than a mutex for single process access
+
+
+#else
+	pthread_mutex_t hMutex;
+#endif
+	// Not threadsafe
+	//	bool isInitialized;
+};
+
+} // namespace RakNet
+
+#endif
+