Doubea Pierre / Mbed 2 deprecated HW3

Lab Checkoff

Dependencies:   SDFileSystem TextLCD mbed-rtos mbed wave_player FATFileSystem

SDFileSystem/FATFileSystem/FATDirHandle.cpp@0:67dbd54e60d4, 2013-11-13 (annotated)

Committer:
doubster
Date:
Wed Nov 13 20:00:28 2013 +0000
Revision:
0:67dbd54e60d4
Lab Checkoff

Who changed what in which revision?

UserRevisionLine numberNew contents of line
doubster 0:67dbd54e60d4 1 /* mbed Microcontroller Library
doubster 0:67dbd54e60d4 2 * Copyright (c) 2006-2012 ARM Limited
doubster 0:67dbd54e60d4 3 *
doubster 0:67dbd54e60d4 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
doubster 0:67dbd54e60d4 5 * of this software and associated documentation files (the "Software"), to deal
doubster 0:67dbd54e60d4 6 * in the Software without restriction, including without limitation the rights
doubster 0:67dbd54e60d4 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
doubster 0:67dbd54e60d4 8 * copies of the Software, and to permit persons to whom the Software is
doubster 0:67dbd54e60d4 9 * furnished to do so, subject to the following conditions:
doubster 0:67dbd54e60d4 10 *
doubster 0:67dbd54e60d4 11 * The above copyright notice and this permission notice shall be included in
doubster 0:67dbd54e60d4 12 * all copies or substantial portions of the Software.
doubster 0:67dbd54e60d4 13 *
doubster 0:67dbd54e60d4 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
doubster 0:67dbd54e60d4 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
doubster 0:67dbd54e60d4 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
doubster 0:67dbd54e60d4 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
doubster 0:67dbd54e60d4 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
doubster 0:67dbd54e60d4 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
doubster 0:67dbd54e60d4 20 * SOFTWARE.
doubster 0:67dbd54e60d4 21 */
doubster 0:67dbd54e60d4 22 #include <string.h>
doubster 0:67dbd54e60d4 23 #include "ff.h"
doubster 0:67dbd54e60d4 24 #include "FATDirHandle.h"
doubster 0:67dbd54e60d4 25
doubster 0:67dbd54e60d4 26 using namespace mbed;
doubster 0:67dbd54e60d4 27
doubster 0:67dbd54e60d4 28 FATDirHandle::FATDirHandle(const FATFS_DIR &the_dir) {
doubster 0:67dbd54e60d4 29 dir = the_dir;
doubster 0:67dbd54e60d4 30 }
doubster 0:67dbd54e60d4 31
doubster 0:67dbd54e60d4 32 int FATDirHandle::closedir() {
doubster 0:67dbd54e60d4 33 delete this;
doubster 0:67dbd54e60d4 34 return 0;
doubster 0:67dbd54e60d4 35 }
doubster 0:67dbd54e60d4 36
doubster 0:67dbd54e60d4 37 struct dirent *FATDirHandle::readdir() {
doubster 0:67dbd54e60d4 38 FILINFO finfo;
doubster 0:67dbd54e60d4 39
doubster 0:67dbd54e60d4 40 #if _USE_LFN
doubster 0:67dbd54e60d4 41 finfo.lfname = cur_entry.d_name;
doubster 0:67dbd54e60d4 42 finfo.lfsize = sizeof(cur_entry.d_name);
doubster 0:67dbd54e60d4 43 #endif // _USE_LFN
doubster 0:67dbd54e60d4 44
doubster 0:67dbd54e60d4 45 FRESULT res = f_readdir(&dir, &finfo);
doubster 0:67dbd54e60d4 46
doubster 0:67dbd54e60d4 47 #if _USE_LFN
doubster 0:67dbd54e60d4 48 if(res != 0 || finfo.fname[0]==0) {
doubster 0:67dbd54e60d4 49 return NULL;
doubster 0:67dbd54e60d4 50 } else {
doubster 0:67dbd54e60d4 51 if(cur_entry.d_name[0]==0) {
doubster 0:67dbd54e60d4 52 // No long filename so use short filename.
doubster 0:67dbd54e60d4 53 memcpy(cur_entry.d_name, finfo.fname, sizeof(finfo.fname));
doubster 0:67dbd54e60d4 54 }
doubster 0:67dbd54e60d4 55 return &cur_entry;
doubster 0:67dbd54e60d4 56 }
doubster 0:67dbd54e60d4 57 #else
doubster 0:67dbd54e60d4 58 if(res != 0 || finfo.fname[0]==0) {
doubster 0:67dbd54e60d4 59 return NULL;
doubster 0:67dbd54e60d4 60 } else {
doubster 0:67dbd54e60d4 61 memcpy(cur_entry.d_name, finfo.fname, sizeof(finfo.fname));
doubster 0:67dbd54e60d4 62 return &cur_entry;
doubster 0:67dbd54e60d4 63 }
doubster 0:67dbd54e60d4 64 #endif /* _USE_LFN */
doubster 0:67dbd54e60d4 65 }
doubster 0:67dbd54e60d4 66
doubster 0:67dbd54e60d4 67 void FATDirHandle::rewinddir() {
doubster 0:67dbd54e60d4 68 dir.index = 0;
doubster 0:67dbd54e60d4 69 }
doubster 0:67dbd54e60d4 70
doubster 0:67dbd54e60d4 71 off_t FATDirHandle::telldir() {
doubster 0:67dbd54e60d4 72 return dir.index;
doubster 0:67dbd54e60d4 73 }
doubster 0:67dbd54e60d4 74
doubster 0:67dbd54e60d4 75 void FATDirHandle::seekdir(off_t location) {
doubster 0:67dbd54e60d4 76 dir.index = location;
doubster 0:67dbd54e60d4 77 }
doubster 0:67dbd54e60d4 78
doubster 0:67dbd54e60d4 79