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#ifndef __ASURA_ENGINE_DATABUFFER_H__
#define __ASURA_ENGINE_DATABUFFER_H__

#include <cstdlib>

#include "../scripting/portable.hpp"
#include "../threading/mutex.h"

namespace AsuraEngine
{
	namespace IO
	{

		///
		/// ڴݵķװеʹData bufferװֱʹconst void*ͨresource managerȡ
		///
		class DataBuffer ASURA_FINAL
			: public AEScripting::Portable<DataBuffer>
		{
		public:

			LUAX_DECL_FACTORY(DataBuffer);

			DataBuffer(DataBuffer& src);
			DataBuffer(std::size_t size);
			DataBuffer(const void* bytes, std::size_t size);
			~DataBuffer();

			byte* GetData();
			size_t GetSize();

			void Refactor(size_t size);
			size_t Load(DataBuffer& db);
			size_t Load(const void* bytes, std::size_t size);
			void Move(void* bytes, std::size_t size);
			void Clear();

			void Lock();
			void Unlock();
			
		private:

			byte* mBytes;
			size_t mSize;

			AEThreading::Mutex mMutex;

			LUAX_DECL_METHOD(_New);
			LUAX_DECL_METHOD(_GetData);
			LUAX_DECL_METHOD(_GetSize);
			LUAX_DECL_METHOD(_Refactor);
			LUAX_DECL_METHOD(_Load);
			LUAX_DECL_METHOD(_Clear);

		};

	}
}

namespace AEIO = AsuraEngine::IO;

#endif