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
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?
User | Revision | Line number | New 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 | } |