readfile.c

来自「U/COS FS 风河为U/COS开发的文件系统.此为源码.」· C语言 代码 · 共 62 行

/*
**********************************************************************
*                          Micrium, Inc.
*                      949 Crestview Circle
*                     Weston,  FL 33327-1848
*
*                            uC/FS
*
*             (c) Copyright 2001 - 2003, Micrium, Inc.
*                      All rights reserved.
*
***********************************************************************

----------------------------------------------------------------------
File        : ReadFile.c
Purpose     : Sample program demonstrating reading
---------------------------END-OF-HEADER------------------------------
*/

#include "fs_api.h"
#include <string.h>
#include <stdio.h>


/*********************************************************************
*
*             MainTask
*/

void MainTask(void);
void MainTask(void) {
  FS_FILE * pFile;
  char      acBuffer[100];
  char      acLog[100];
  int       Count;
  int       Total;
  FS_I16    Error;
  Total = 0;
  pFile = FS_FOpen("default.txt", "r");
  if (pFile == NULL) {
    FS_X_ErrorOut("Could not open file.");
  }
  /* Cycle until end of file reached: */
  while (!FS_FEof(pFile)) {
    Count = FS_Read(pFile, &acBuffer[0], sizeof(acBuffer));
    Error = FS_FError(pFile);
    if (Error) {
      sprintf(acLog, "Could not read from file:\nReason = %s", FS_ErrorNo2Text(Error));
      FS_X_ErrorOut(acLog);
      break;
    }
    /* Total up actual bytes read */
    Total += Count;
  }
  sprintf(acLog, "Number of read bytes = %d\n", Total);
  FS_X_Log(acLog);
  FS_FClose(pFile);
}

/*************************** End of file ****************************/