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

 Governed by the TrueCrypt License 2.5 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
	{
#ifdef TC_WINDOWS
		typedef CRITICAL_SECTION SystemMutex_t;
#else
		typedef pthread_mutex_t SystemMutex_t;
#endif

	public:
		Mutex ();
		~Mutex ();

		SystemMutex_t *GetSystemHandle () { return &SystemMutex; }
		void Lock ();
		void Unlock ();

	protected:
		bool Initialized;
		SystemMutex_t SystemMutex;

	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