#pragma once
class CMyCircularBuf
{
public:
	CMyCircularBuf();
	~CMyCircularBuf();
	CMyCircularBuf(int nCapicity);
	CCriticalSection m_critial1;
	int nmCapacity;		//ÈÝÁ¿
	char * pBuffer;
	int WriteP;
	int ReadP;
	int nDataSize;
	bool bIsEmpty;
	bool bIsFull;
public:
	int Alloc(int nCapicity);
	int GetCapicity();
	int GetNextWriteP(int nOffset);
	int GetNextReadP(int nOffset);
	int GetTailRoomSize();
	int GetTailDataSize();
	int GetLeftRoomSize();
	int GetDataSize();
	char * GetWriteBuffer(int * LeftRoomSize);
	int ReleaseWriteBuffer(int AddSize);
	char * GetReadBuffer(int * DataSize);
	int ReleaseReadBuffer(int DelSize);
	bool IsEmpty(){return bIsEmpty;}
	bool IsFull(){return bIsFull;}
	int PushIn(void * pData,int Size);
	int CopyData(void *pData,int Size);
	int DelData(int Size);
	int PopOut(void * pData,int Size);
};