改了所长队列的代码,各位看有问题吧

//文件.h





#ifdef   FIFO_GLOBALS

#define  FIFO_EXT   

#else

#define  FIFO_EXT extern

#endif



typedef struct QueueML{

  unsigned char *pFirst;//数组的首地址

  unsigned char PutFifoPt;//放数据的索引

  unsigned char GetFifoPt;

  unsigned char Size;//当前FIFO放了几个数进去

  unsigned char MaxCount;//FIFO最大长度

  unsigned char Wrap;

}QUEUE;



FIFO_EXT QUEUE TestQueue;



#ifndef __FIFO_H__

#define __FIFO_H__ 1 //有的编译器不接受#define __FIFO_H__????



#define FIFO_FULL 0

#define FIFO_EMPTY 0xFF



extern void FifoInit( QUEUE *pQueue, unsigned char *pArray, unsigned char MaxCount);

extern unsigned char PutFifo( QUEUE *pQueue, unsigned char Data);

extern unsigned char GetFifo( QUEUE *pQueue );

extern unsigned char GetFifoSize( QUEUE *pQueue );

extern void FifoClear( QUEUE *pQueue );

#endif



//.c文件



#include "Config.h"



/*

typedef struct QueueML{

  unsigned char *pFirst;//

  unsigned char PutFifoPt;//放数据的索引

  unsigned char Size;//当前FIFO放了几个数进去

  unsigned char MaxCount;//FIFO最大长度

  unsigned char Wrap;

}QUEUE;

*/



/*

函数名:void FifoInit(struct Queue *pQueue, unsigned char *pArray)

入口参数:struct Queue *pQueue:

*/

void FifoInit( QUEUE *pQueue, unsigned char *pArray, unsigned char MaxCount)

{

    pQueue->pFirst = pArray;//分配给队列数组的指针

    pQueue->MaxCount = MaxCount;

    pQueue->Wrap = MaxCount - 1;

    pQueue->PutFifoPt = 0;

    pQueue->GetFifoPt = 0;

    pQueue->Size = 0;

}



void FifoClear( QUEUE *pQueue )

{

    pQueue->PutFifoPt = 0;

    pQueue->GetFifoPt = 0;

    pQueue->Size = 0;

}



unsigned char PutFifo(QUEUE *pQueue, unsigned char Data)

{

    if(pQueue->Size == pQueue->MaxCount)  //FIFO FULL

        return ~0;  

    else

    {

        *(pQueue->pFirst + pQueue->PutFifoPt) = Data;// (FIFO首地址  + 索引 ) = 数据

        (pQueue->PutFifoPt)++;

        pQueue->PutFifoPt &= pQueue->Wrap;

        (pQueue->Size)++;

        return 0;

        

/*      *(RecBuf + PutFifoPt) = data;   //put data into fifo

        PutFifoPt++;

        PutFifoPt = PutFifoPt & WRAP;// WRAP Point

        RecCount++;*/

        

    }

}



/*

功能：返回Fifo当前有多少空间被使用

*/

unsigned char GetFifoSize( QUEUE *pQueue )

{

    return pQueue->Size;

}

/*

函数名：unsigned char GetFifo( QUEUE *pQueue )

说明：取FIFO要判断Fifo中有没有数据

*/

unsigned char GetFifo( QUEUE *pQueue )

{

    unsigned char TempFifo;

    

    TempFifo = *(pQueue->pFirst + pQueue->GetFifoPt);

    (pQueue->GetFifoPt)++;

    (pQueue->GetFifoPt) &= pQueue->Wrap;

    (pQueue->Size)--;

        

    return TempFifo;

}