static void prvVerifyDemoFileUsing_f_getc( void )
{
unsigned char ucReturn;
int iByte, iReturned;
F_FILE *pxFile;
char cFileName[ fsMAX_FILE_NAME_LEN ];
/* Move into the directory in which the file was created. */
ucReturn = f_chdir( pcFullPath );
configASSERT( ucReturn == F_NO_ERROR );
/* Obtain and print out the working directory. */
f_getcwd( cRAMBuffer, fsRAM_BUFFER_SIZE );
printf( "Back in directory %s\r\n", cRAMBuffer );
configASSERT( strcmp( cRAMBuffer, pcFullPath ) == 0 );
/* Generate the file name. */
sprintf( cFileName, "%s.txt", pcDirectory2 );
/* Print out the file name and the directory from which the file is being
read. */
printf( "Reading file %s in %s\r\n", cFileName, cRAMBuffer );
/* This time the file is opened for reading. */
pxFile = f_open( cFileName, "r" );
/* Read the file 1 byte at a time. */
for( iByte = 0; iByte < fsPUTC_FILE_SIZE; iByte++ )
{
iReturned = f_getc( pxFile );
configASSERT( iReturned == ( ( int ) '0' + iByte ) );
}
/* Finished so close the file. */
f_close( pxFile );
/* Move back to the root directory. */
ucReturn = f_chdir( "../.." );
configASSERT( ucReturn == F_NO_ERROR );
/* Obtain and print out the working directory. */
f_getcwd( cRAMBuffer, fsRAM_BUFFER_SIZE );
printf( "Back in root directory %s\r\n", cRAMBuffer );
}
static portBASE_TYPE prvTYPECommand( char *pcWriteBuffer, size_t xWriteBufferLen, const char *pcCommandString )
{
const char *pcParameter;
portBASE_TYPE xParameterStringLength, xReturn = pdTRUE;
static F_FILE *pxFile = NULL;
int iChar;
size_t xByte;
size_t xColumns = 50U;
/* Ensure there is always a null terminator after each character written. */
memset( pcWriteBuffer, 0x00, xWriteBufferLen );
/* Ensure the buffer leaves space for the \r\n. */
configASSERT( xWriteBufferLen > ( strlen( cliNEW_LINE ) * 2 ) );
xWriteBufferLen -= strlen( cliNEW_LINE );
if( xWriteBufferLen < xColumns )
{
/* Ensure the loop that uses xColumns as an end condition does not
write off the end of the buffer. */
xColumns = xWriteBufferLen;
}
if( pxFile == NULL )
{
/* The file has not been opened yet. Find the file name. */
pcParameter = FreeRTOS_CLIGetParameter
(
pcCommandString, /* The command string itself. */
1, /* Return the first parameter. */
&xParameterStringLength /* Store the parameter string length. */
);
/* Sanity check something was returned. */
configASSERT( pcParameter );
/* Attempt to open the requested file. */
pxFile = f_open( pcParameter, "r" );
}
if( pxFile != NULL )
{
/* Read the next chunk of data from the file. */
for( xByte = 0; xByte < xColumns; xByte++ )
{
iChar = f_getc( pxFile );
if( iChar == -1 )
{
/* No more characters to return. */
f_close( pxFile );
pxFile = NULL;
break;
}
else
{
pcWriteBuffer[ xByte ] = ( char ) iChar;
}
}
}
if( pxFile == NULL )
{
/* Either the file was not opened, or all the data from the file has
been returned and the file is now closed. */
xReturn = pdFALSE;
}
strcat( pcWriteBuffer, cliNEW_LINE );
return xReturn;
}
