Alvin Jorgih / Mbed 2 deprecated Snake-game-fall2020-student-Shell

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Dependencies:   mbed wave_player 4DGL-uLCD-SE MMA8452

SDFileSystem/FATFileSystem/FATDirHandle.cpp@10:0b2f37cef9b9, 2021-04-17 (annotated)

Committer:
ajorgih3
Date:
Sat Apr 17 14:09:46 2021 +0000
Revision:
10:0b2f37cef9b9
Parent:
1:10330bce85cb 
huhu

Who changed what in which revision?

UserRevisionLine numberNew contents of line
DCchico 1:10330bce85cb 1 /* mbed Microcontroller Library
DCchico 1:10330bce85cb 2 * Copyright (c) 2006-2012 ARM Limited
DCchico 1:10330bce85cb 3 *
DCchico 1:10330bce85cb 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
DCchico 1:10330bce85cb 5 * of this software and associated documentation files (the "Software"), to deal
DCchico 1:10330bce85cb 6 * in the Software without restriction, including without limitation the rights
DCchico 1:10330bce85cb 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
DCchico 1:10330bce85cb 8 * copies of the Software, and to permit persons to whom the Software is
DCchico 1:10330bce85cb 9 * furnished to do so, subject to the following conditions:
DCchico 1:10330bce85cb 10 *
DCchico 1:10330bce85cb 11 * The above copyright notice and this permission notice shall be included in
DCchico 1:10330bce85cb 12 * all copies or substantial portions of the Software.
DCchico 1:10330bce85cb 13 *
DCchico 1:10330bce85cb 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
DCchico 1:10330bce85cb 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
DCchico 1:10330bce85cb 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
DCchico 1:10330bce85cb 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
DCchico 1:10330bce85cb 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
DCchico 1:10330bce85cb 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
DCchico 1:10330bce85cb 20 * SOFTWARE.
DCchico 1:10330bce85cb 21 */
DCchico 1:10330bce85cb 22 #include <string.h>
DCchico 1:10330bce85cb 23 #include "ff.h"
DCchico 1:10330bce85cb 24 #include "FATDirHandle.h"
DCchico 1:10330bce85cb 25
DCchico 1:10330bce85cb 26 using namespace mbed;
DCchico 1:10330bce85cb 27
DCchico 1:10330bce85cb 28 FATDirHandle::FATDirHandle(const FATFS_DIR &the_dir) {
DCchico 1:10330bce85cb 29 dir = the_dir;
DCchico 1:10330bce85cb 30 }
DCchico 1:10330bce85cb 31
DCchico 1:10330bce85cb 32 int FATDirHandle::closedir() {
DCchico 1:10330bce85cb 33 delete this;
DCchico 1:10330bce85cb 34 return 0;
DCchico 1:10330bce85cb 35 }
DCchico 1:10330bce85cb 36
DCchico 1:10330bce85cb 37 struct dirent *FATDirHandle::readdir() {
DCchico 1:10330bce85cb 38 FILINFO finfo;
DCchico 1:10330bce85cb 39
DCchico 1:10330bce85cb 40 #if _USE_LFN
DCchico 1:10330bce85cb 41 finfo.lfname = cur_entry.d_name;
DCchico 1:10330bce85cb 42 finfo.lfsize = sizeof(cur_entry.d_name);
DCchico 1:10330bce85cb 43 #endif // _USE_LFN
DCchico 1:10330bce85cb 44
DCchico 1:10330bce85cb 45 FRESULT res = f_readdir(&dir, &finfo);
DCchico 1:10330bce85cb 46
DCchico 1:10330bce85cb 47 #if _USE_LFN
DCchico 1:10330bce85cb 48 if(res != 0 || finfo.fname[0]==0) {
DCchico 1:10330bce85cb 49 return NULL;
DCchico 1:10330bce85cb 50 } else {
DCchico 1:10330bce85cb 51 if(cur_entry.d_name[0]==0) {
DCchico 1:10330bce85cb 52 // No long filename so use short filename.
DCchico 1:10330bce85cb 53 memcpy(cur_entry.d_name, finfo.fname, sizeof(finfo.fname));
DCchico 1:10330bce85cb 54 }
DCchico 1:10330bce85cb 55 return &cur_entry;
DCchico 1:10330bce85cb 56 }
DCchico 1:10330bce85cb 57 #else
DCchico 1:10330bce85cb 58 if(res != 0 || finfo.fname[0]==0) {
DCchico 1:10330bce85cb 59 return NULL;
DCchico 1:10330bce85cb 60 } else {
DCchico 1:10330bce85cb 61 memcpy(cur_entry.d_name, finfo.fname, sizeof(finfo.fname));
DCchico 1:10330bce85cb 62 return &cur_entry;
DCchico 1:10330bce85cb 63 }
DCchico 1:10330bce85cb 64 #endif /* _USE_LFN */
DCchico 1:10330bce85cb 65 }
DCchico 1:10330bce85cb 66
DCchico 1:10330bce85cb 67 void FATDirHandle::rewinddir() {
DCchico 1:10330bce85cb 68 dir.index = 0;
DCchico 1:10330bce85cb 69 }
DCchico 1:10330bce85cb 70
DCchico 1:10330bce85cb 71 off_t FATDirHandle::telldir() {
DCchico 1:10330bce85cb 72 return dir.index;
DCchico 1:10330bce85cb 73 }
DCchico 1:10330bce85cb 74
DCchico 1:10330bce85cb 75 void FATDirHandle::seekdir(off_t location) {
DCchico 1:10330bce85cb 76 dir.index = location;
DCchico 1:10330bce85cb 77 }
DCchico 1:10330bce85cb 78