pdfproject/MFCApplication1/Buffers.h

/***********************************************************************/
//文 件 名：CBuffers.h
//功	能：CBuffers类声明
//			CBuffers类是一个利用内存池机制来分配内存的工具类
/***********************************************************************/
#ifndef __CBuffers__
#define __CBuffers__

class CBuffers
{
public:
	char*	GetBuf(size_t lsize);
	char*	Extern(size_t maxSize);
	char*	Copy( void * lpData, size_t lsize );
	char*	Append( void * lpData, size_t lsize );
	void	Attach( CBuffers*pMemory );
	void    Detach();
	void	Release(void);

	inline operator const char * (void) const;
	const CBuffers& operator=(const char * lpString);
	const CBuffers& operator+=(const char * lpString);
	//绑定地址:自动释放
	CBuffers(void * lpBuffer=0);
	~CBuffers(void);

	size_t sizeData,sizeMalloc;
	char *bufData;
};

#define		FREE_BUFFER( x )		\
{									\
	CBuffers buf( x );				\
}

#define		INIT_BUFFER( x, n )		\
{									\
	CBuffers	buf;				\
	x = buf.GetBuf( ( n ) );		\
	buf.Detach();					\
}

#endif //__CBuffers__