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- /* mbed Microcontroller Library
- * Copyright (c) 2006-2012 ARM Limited
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
- #include "ff.h"
- #include "ffconf.h"
- #include "mbed_debug.h"
-
- #include "FATFileHandle.h"
-
- FATFileHandle::FATFileHandle(FIL fh) {
- _fh = fh;
- }
-
- int FATFileHandle::close() {
- int retval = f_close(&_fh);
- delete this;
- return retval;
- }
-
- ssize_t FATFileHandle::write(const void* buffer, size_t length) {
- UINT n;
- FRESULT res = f_write(&_fh, buffer, length, &n);
- if (res) {
- debug_if(FFS_DBG, "f_write() failed: %d", res);
- return -1;
- }
- return n;
- }
-
- ssize_t FATFileHandle::read(void* buffer, size_t length) {
- debug_if(FFS_DBG, "read(%d)\n", length);
- UINT n;
- FRESULT res = f_read(&_fh, buffer, length, &n);
- if (res) {
- debug_if(FFS_DBG, "f_read() failed: %d\n", res);
- return -1;
- }
- return n;
- }
-
- int FATFileHandle::isatty() {
- return 0;
- }
-
- off_t FATFileHandle::lseek(off_t position, int whence) {
- if (whence == SEEK_END) {
- position += _fh.fsize;
- } else if(whence==SEEK_CUR) {
- position += _fh.fptr;
- }
- FRESULT res = f_lseek(&_fh, position);
- if (res) {
- debug_if(FFS_DBG, "lseek failed: %d\n", res);
- return -1;
- } else {
- debug_if(FFS_DBG, "lseek OK, returning %i\n", _fh.fptr);
- return _fh.fptr;
- }
- }
-
- int FATFileHandle::fsync() {
- FRESULT res = f_sync(&_fh);
- if (res) {
- debug_if(FFS_DBG, "f_sync() failed: %d\n", res);
- return -1;
- }
- return 0;
- }
-
- off_t FATFileHandle::flen() {
- return _fh.fsize;
- }
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