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#ifndef __ASURA_MUTEX_H__
#define __ASURA_MUTEX_H__

#include <asura-lib-utils/type.h>

#include "../utils_config.h"

#if ASURA_THREAD_WIN32
	#include <windows.h>
#endif

namespace AsuraEngine
{
	namespace Threading
	{

		class MutexImpl;

		class Mutex
		{
		public:

			Mutex();
			~Mutex();

			void Lock();
			void Unlock();

		private:

			MutexImpl* mImpl;

		};

		class Lock
		{
		public:
			Lock(Mutex& mutex)
				: m(mutex)
			{
				m.Lock();
			};
			~Lock()
			{
				m.Unlock();
			}
		private: 
			void* operator new(size_t);
			Mutex& m;
		};

#define lock(mutex) Lock _asura_scoped_lock_0x0_(mutex)
#define lock2(mutex) Lock _asura_scoped_lock_0x1_(mutex)
#define lock3(mutex) Lock _asura_scoped_lock_0x2_(mutex)
#define lock4(mutex) Lock _asura_scoped_lock_0x3_(mutex)
#define lock5(mutex) Lock _asura_scoped_lock_0x4_(mutex)

		ASURA_ABSTRACT class MutexImpl
		{
		public:

			MutexImpl() {};
			virtual ~MutexImpl() {};

			virtual void Lock() = 0; 
			virtual void Unlock() = 0;

		};

#if ASURA_THREAD_WIN32 

		//https://blog.csdn.net/l799623787/article/details/18259949
		class MutexImplWin32 ASURA_FINAL : public MutexImpl
		{
		public:

			MutexImplWin32(); 
			~MutexImplWin32();

			void Lock() override;
			void Unlock() override;

		private: 

			//HANDLE mHandle;
			CRITICAL_SECTION mMutex;

		};

#endif // ASURA_THREAD_WIN32 

#if ASURA_THREAD_STD 

		class MutexImplSTD ASURA_FINAL : public MutexImpl
		{
		};

#endif // ASURA_THREAD_STD 

	}
}

namespace AEThreading = AsuraEngine::Threading;

#endif