/**
  ******************************************************************************
  * @file           : MyQueue.h
  * @brief          : Header for MyQueue.c file.
  *                   This file contains the common defines of the application.
  ******************************************************************************
	*/
#ifndef __MYQUEUE_H__
#define __MYQUEUE_H__

#pragma anon_unions
typedef struct 
{
	unsigned char * buf1;	
	short Caps;
	volatile short wp; //Write Pointor
	volatile short rp; //Read Pointor
//	volatile int DataSize;
//	volatile short RecvBytes;	
	union{
	volatile unsigned char state;		
		struct{
		volatile unsigned char bFull:1;
		volatile unsigned char bEmpty:1;
		};
	};

}stMyQueue,* pMyQueue;

	int initQueue(pMyQueue theQueue, void * pBuf, int nSize);
	int EmptyQueue(stMyQueue * theQueue);
static __inline int GetCap(pMyQueue theQueue)
	{
		return theQueue->Caps;
	}
static __inline int GetDataLen(pMyQueue theQueue)
	{
		int size=theQueue->wp - theQueue->rp;
		if (theQueue->bFull)
		{
				return theQueue->Caps;
		}else if (theQueue->bEmpty)
		{
				return 0;
		}else	if (size >0 )
		{
			return size;
		}else if (size < 0)
		{
			return size + theQueue->Caps;
		} else
		{
			return 0;
		}
	}
static __inline int GetLeftRoom(pMyQueue theQueue)
	{
		return (theQueue->Caps - GetDataLen(theQueue));
	}
static __inline int IsFull(pMyQueue theQueue)
	{
		return (theQueue->bFull);
	}
static __inline int IsEmpty(pMyQueue theQueue)
	{
		return (theQueue->bEmpty);
	}

	int GetContinueEmptyRoom(pMyQueue theQueue);
	int GetContinueData(pMyQueue theQueue);
static __inline	unsigned char * GetReadBuffer(pMyQueue theQueue)
	{
		return theQueue->buf1+theQueue->rp;
	}
static __inline	unsigned char * GetWriteBuffer(pMyQueue theQueue)
	{
		return theQueue->buf1+theQueue->wp;		
	}
	int AddSpace(pMyQueue theQueue, int nSize);	
	int DelData(pMyQueue theQueue, int nSize);

	int CopyData(pMyQueue theQueue, void * pData, int nSize);
	
	int PushIn(pMyQueue theQueue, void * pData, int nSize);
	int PopOut(pMyQueue theQueue, void * pData, int nSize);
	
	int PushOne(pMyQueue theQueue, unsigned char ch);
	int PopOne(pMyQueue theQueue);

#endif  /* __MYQUEUE_H__ */