Zixuan Kang / Mbed 2 deprecated rpg_game

ECE 2035 Homework

Dependencies:   mbed wave_player 4DGL-uLCD-SE MMA8452

SDFileSystem/FATFileSystem/FATDirHandle.cpp@4:e3fbc74a3783, 2019-11-14 (annotated)

Committer:
zkang0729
Date:
Thu Nov 14 17:14:37 2019 +0000
Revision:
4:e3fbc74a3783
Parent:
0:35660d7952f7 
Initial Commit;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rconnorlawson 0:35660d7952f7 1 /* mbed Microcontroller Library
rconnorlawson 0:35660d7952f7 2 * Copyright (c) 2006-2012 ARM Limited
rconnorlawson 0:35660d7952f7 3 *
rconnorlawson 0:35660d7952f7 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
rconnorlawson 0:35660d7952f7 5 * of this software and associated documentation files (the "Software"), to deal
rconnorlawson 0:35660d7952f7 6 * in the Software without restriction, including without limitation the rights
rconnorlawson 0:35660d7952f7 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
rconnorlawson 0:35660d7952f7 8 * copies of the Software, and to permit persons to whom the Software is
rconnorlawson 0:35660d7952f7 9 * furnished to do so, subject to the following conditions:
rconnorlawson 0:35660d7952f7 10 *
rconnorlawson 0:35660d7952f7 11 * The above copyright notice and this permission notice shall be included in
rconnorlawson 0:35660d7952f7 12 * all copies or substantial portions of the Software.
rconnorlawson 0:35660d7952f7 13 *
rconnorlawson 0:35660d7952f7 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
rconnorlawson 0:35660d7952f7 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
rconnorlawson 0:35660d7952f7 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
rconnorlawson 0:35660d7952f7 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
rconnorlawson 0:35660d7952f7 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
rconnorlawson 0:35660d7952f7 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
rconnorlawson 0:35660d7952f7 20 * SOFTWARE.
rconnorlawson 0:35660d7952f7 21 */
rconnorlawson 0:35660d7952f7 22 #include <string.h>
rconnorlawson 0:35660d7952f7 23 #include "ff.h"
rconnorlawson 0:35660d7952f7 24 #include "FATDirHandle.h"
rconnorlawson 0:35660d7952f7 25
rconnorlawson 0:35660d7952f7 26 using namespace mbed;
rconnorlawson 0:35660d7952f7 27
rconnorlawson 0:35660d7952f7 28 FATDirHandle::FATDirHandle(const FATFS_DIR &the_dir) {
rconnorlawson 0:35660d7952f7 29 dir = the_dir;
rconnorlawson 0:35660d7952f7 30 }
rconnorlawson 0:35660d7952f7 31
rconnorlawson 0:35660d7952f7 32 int FATDirHandle::closedir() {
rconnorlawson 0:35660d7952f7 33 delete this;
rconnorlawson 0:35660d7952f7 34 return 0;
rconnorlawson 0:35660d7952f7 35 }
rconnorlawson 0:35660d7952f7 36
rconnorlawson 0:35660d7952f7 37 struct dirent *FATDirHandle::readdir() {
rconnorlawson 0:35660d7952f7 38 FILINFO finfo;
rconnorlawson 0:35660d7952f7 39
rconnorlawson 0:35660d7952f7 40 #if _USE_LFN
rconnorlawson 0:35660d7952f7 41 finfo.lfname = cur_entry.d_name;
rconnorlawson 0:35660d7952f7 42 finfo.lfsize = sizeof(cur_entry.d_name);
rconnorlawson 0:35660d7952f7 43 #endif // _USE_LFN
rconnorlawson 0:35660d7952f7 44
rconnorlawson 0:35660d7952f7 45 FRESULT res = f_readdir(&dir, &finfo);
rconnorlawson 0:35660d7952f7 46
rconnorlawson 0:35660d7952f7 47 #if _USE_LFN
rconnorlawson 0:35660d7952f7 48 if(res != 0 || finfo.fname[0]==0) {
rconnorlawson 0:35660d7952f7 49 return NULL;
rconnorlawson 0:35660d7952f7 50 } else {
rconnorlawson 0:35660d7952f7 51 if(cur_entry.d_name[0]==0) {
rconnorlawson 0:35660d7952f7 52 // No long filename so use short filename.
rconnorlawson 0:35660d7952f7 53 memcpy(cur_entry.d_name, finfo.fname, sizeof(finfo.fname));
rconnorlawson 0:35660d7952f7 54 }
rconnorlawson 0:35660d7952f7 55 return &cur_entry;
rconnorlawson 0:35660d7952f7 56 }
rconnorlawson 0:35660d7952f7 57 #else
rconnorlawson 0:35660d7952f7 58 if(res != 0 || finfo.fname[0]==0) {
rconnorlawson 0:35660d7952f7 59 return NULL;
rconnorlawson 0:35660d7952f7 60 } else {
rconnorlawson 0:35660d7952f7 61 memcpy(cur_entry.d_name, finfo.fname, sizeof(finfo.fname));
rconnorlawson 0:35660d7952f7 62 return &cur_entry;
rconnorlawson 0:35660d7952f7 63 }
rconnorlawson 0:35660d7952f7 64 #endif /* _USE_LFN */
rconnorlawson 0:35660d7952f7 65 }
rconnorlawson 0:35660d7952f7 66
rconnorlawson 0:35660d7952f7 67 void FATDirHandle::rewinddir() {
rconnorlawson 0:35660d7952f7 68 dir.index = 0;
rconnorlawson 0:35660d7952f7 69 }
rconnorlawson 0:35660d7952f7 70
rconnorlawson 0:35660d7952f7 71 off_t FATDirHandle::telldir() {
rconnorlawson 0:35660d7952f7 72 return dir.index;
rconnorlawson 0:35660d7952f7 73 }
rconnorlawson 0:35660d7952f7 74
rconnorlawson 0:35660d7952f7 75 void FATDirHandle::seekdir(off_t location) {
rconnorlawson 0:35660d7952f7 76 dir.index = location;
rconnorlawson 0:35660d7952f7 77 }
rconnorlawson 0:35660d7952f7 78