mutex.h

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/*
 Copyright (c) 2008 TrueCrypt Foundation. All rights reserved.

 Governed by the TrueCrypt License 2.4 the full text of which is contained
 in the file License.txt included in TrueCrypt binary and source code
 distribution packages.
*/

#ifndef TC_HEADER_Platform_Mutex
#define TC_HEADER_Platform_Mutex

#ifdef TC_WINDOWS
#	include "System.h"
#else
#	include <pthread.h>
#endif
#include "PlatformBase.h"

namespace TrueCrypt
{
	class Mutex
	{
	public:
		Mutex ();
		~Mutex ();

		void Lock ();
		void Unlock ();

	protected:
		bool Initialized;
#ifdef TC_WINDOWS
		CRITICAL_SECTION SystemMutex;
#else
		pthread_mutex_t SystemMutex;
#endif

	private:
		Mutex (const Mutex &);
		Mutex &operator= (const Mutex &);
	};

	class ScopeLock
	{
	public:
		ScopeLock (Mutex &mutex) : ScopeMutex (mutex) { mutex.Lock(); }
		~ScopeLock () { ScopeMutex.Unlock(); }

	protected:
		Mutex &ScopeMutex;

	private:
		ScopeLock (const ScopeLock &);
		ScopeLock &operator= (const ScopeLock &);
	};
}

#endif // TC_HEADER_Platform_Mutex