/*
** fr_seek
**
** Seek in a file.
**
** INPUT : *filehandle - pointer to a file descriptor
** offset - offset
** whence - F_SEEK_SET: position = offset
** F_SEEK_CUR: position = position + offset
** F_SEEK_END: position = end of file (offset=0)
** RETURN: F_NOERR on succes, other if error.
*/
unsigned char fr_seek ( F_FILE * filehandle, long offset, unsigned char whence )
{
unsigned char rc;
if( xSemaphoreTake( fs_lock_semaphore, F_MAX_LOCK_WAIT_TICKS ) == pdPASS )
{
rc = fn_seek( filehandle, offset, whence );
xSemaphoreGive( fs_lock_semaphore );
}
else
{
rc = F_ERR_OS;
}
return rc;
}
unsigned char fn_rewind ( F_FILE * filehandle )
{
return fn_seek( filehandle, 0L, F_SEEK_SET );
}
