S K UCI / FATFileSystemWithFilinfo

Fork of FATFileSystem that exposes FILINFO in the FATDirHandle. This allows obtaining true file sizes and testing whether a dir pointer is a directory or a file.

Dependents:   SDFileSystemNoStall

Fork of FATFileSystem by mbed official

FATFileHandle.cpp@6:7a3c53d25d96, 2014-10-30 (annotated)

Committer:
uci1
Date:
Thu Oct 30 07:01:15 2014 +0000
Revision:
6:7a3c53d25d96
Parent:
4:3ff2606d5713 
Revert the fat file system back to that from 17 Mar 2014 so that it works with the SD card library, and add again the exposing of FILINFO to FATDirHandle

Who changed what in which revision?

UserRevisionLine numberNew contents of line
emilmont 1:46ce1e16c870 1 /* mbed Microcontroller Library
emilmont 1:46ce1e16c870 2 * Copyright (c) 2006-2012 ARM Limited
emilmont 1:46ce1e16c870 3 *
emilmont 1:46ce1e16c870 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
emilmont 1:46ce1e16c870 5 * of this software and associated documentation files (the "Software"), to deal
emilmont 1:46ce1e16c870 6 * in the Software without restriction, including without limitation the rights
emilmont 1:46ce1e16c870 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
emilmont 1:46ce1e16c870 8 * copies of the Software, and to permit persons to whom the Software is
emilmont 1:46ce1e16c870 9 * furnished to do so, subject to the following conditions:
emilmont 1:46ce1e16c870 10 *
emilmont 1:46ce1e16c870 11 * The above copyright notice and this permission notice shall be included in
emilmont 1:46ce1e16c870 12 * all copies or substantial portions of the Software.
emilmont 1:46ce1e16c870 13 *
emilmont 1:46ce1e16c870 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
emilmont 1:46ce1e16c870 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
emilmont 1:46ce1e16c870 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
emilmont 1:46ce1e16c870 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
emilmont 1:46ce1e16c870 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
emilmont 1:46ce1e16c870 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
emilmont 1:46ce1e16c870 20 * SOFTWARE.
emilmont 1:46ce1e16c870 21 */
emilmont 1:46ce1e16c870 22 #include "ff.h"
emilmont 1:46ce1e16c870 23 #include "ffconf.h"
emilmont 2:b6669c987c8e 24 #include "mbed_debug.h"
emilmont 1:46ce1e16c870 25
emilmont 1:46ce1e16c870 26 #include "FATFileHandle.h"
emilmont 1:46ce1e16c870 27
emilmont 1:46ce1e16c870 28 FATFileHandle::FATFileHandle(FIL fh) {
emilmont 1:46ce1e16c870 29 _fh = fh;
emilmont 1:46ce1e16c870 30 }
emilmont 1:46ce1e16c870 31
emilmont 1:46ce1e16c870 32 int FATFileHandle::close() {
emilmont 1:46ce1e16c870 33 int retval = f_close(&_fh);
emilmont 1:46ce1e16c870 34 delete this;
emilmont 1:46ce1e16c870 35 return retval;
emilmont 1:46ce1e16c870 36 }
emilmont 1:46ce1e16c870 37
emilmont 1:46ce1e16c870 38 ssize_t FATFileHandle::write(const void* buffer, size_t length) {
emilmont 1:46ce1e16c870 39 UINT n;
emilmont 1:46ce1e16c870 40 FRESULT res = f_write(&_fh, buffer, length, &n);
uci1 6:7a3c53d25d96 41 if (res) {
emilmont 1:46ce1e16c870 42 debug_if(FFS_DBG, "f_write() failed: %d", res);
emilmont 1:46ce1e16c870 43 return -1;
emilmont 1:46ce1e16c870 44 }
emilmont 1:46ce1e16c870 45 return n;
emilmont 1:46ce1e16c870 46 }
uci1 6:7a3c53d25d96 47
emilmont 1:46ce1e16c870 48 ssize_t FATFileHandle::read(void* buffer, size_t length) {
emilmont 1:46ce1e16c870 49 debug_if(FFS_DBG, "read(%d)\n", length);
emilmont 1:46ce1e16c870 50 UINT n;
emilmont 1:46ce1e16c870 51 FRESULT res = f_read(&_fh, buffer, length, &n);
emilmont 1:46ce1e16c870 52 if (res) {
emilmont 1:46ce1e16c870 53 debug_if(FFS_DBG, "f_read() failed: %d\n", res);
emilmont 1:46ce1e16c870 54 return -1;
emilmont 1:46ce1e16c870 55 }
emilmont 1:46ce1e16c870 56 return n;
emilmont 1:46ce1e16c870 57 }
emilmont 1:46ce1e16c870 58
emilmont 1:46ce1e16c870 59 int FATFileHandle::isatty() {
emilmont 1:46ce1e16c870 60 return 0;
emilmont 1:46ce1e16c870 61 }
emilmont 1:46ce1e16c870 62
emilmont 1:46ce1e16c870 63 off_t FATFileHandle::lseek(off_t position, int whence) {
emilmont 1:46ce1e16c870 64 if (whence == SEEK_END) {
emilmont 1:46ce1e16c870 65 position += _fh.fsize;
emilmont 1:46ce1e16c870 66 } else if(whence==SEEK_CUR) {
emilmont 1:46ce1e16c870 67 position += _fh.fptr;
emilmont 1:46ce1e16c870 68 }
emilmont 1:46ce1e16c870 69 FRESULT res = f_lseek(&_fh, position);
emilmont 1:46ce1e16c870 70 if (res) {
emilmont 1:46ce1e16c870 71 debug_if(FFS_DBG, "lseek failed: %d\n", res);
emilmont 1:46ce1e16c870 72 return -1;
emilmont 1:46ce1e16c870 73 } else {
emilmont 1:46ce1e16c870 74 debug_if(FFS_DBG, "lseek OK, returning %i\n", _fh.fptr);
emilmont 1:46ce1e16c870 75 return _fh.fptr;
emilmont 1:46ce1e16c870 76 }
emilmont 1:46ce1e16c870 77 }
emilmont 1:46ce1e16c870 78
emilmont 1:46ce1e16c870 79 int FATFileHandle::fsync() {
emilmont 1:46ce1e16c870 80 FRESULT res = f_sync(&_fh);
emilmont 1:46ce1e16c870 81 if (res) {
emilmont 1:46ce1e16c870 82 debug_if(FFS_DBG, "f_sync() failed: %d\n", res);
emilmont 1:46ce1e16c870 83 return -1;
emilmont 1:46ce1e16c870 84 }
emilmont 1:46ce1e16c870 85 return 0;
emilmont 1:46ce1e16c870 86 }
emilmont 1:46ce1e16c870 87
emilmont 1:46ce1e16c870 88 off_t FATFileHandle::flen() {
emilmont 1:46ce1e16c870 89 return _fh.fsize;
emilmont 1:46ce1e16c870 90 }