Alex Vancoillie / SDFileSystem

Library for SD card

Dependents:   City_Game_JSON saver-noenvio-1 SNOCC_V2 lab7_prog1 ... more

FATFileSystem/FATDirHandle.cpp@0:3bdfc1556537, 2017-03-29 (annotated)

Committer:
AlexVC97
Date:
Wed Mar 29 07:00:22 2017 +0000
Revision:
0:3bdfc1556537
SDFileSystem Library

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AlexVC97 0:3bdfc1556537 1 /* mbed Microcontroller Library
AlexVC97 0:3bdfc1556537 2 * Copyright (c) 2006-2012 ARM Limited
AlexVC97 0:3bdfc1556537 3 *
AlexVC97 0:3bdfc1556537 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
AlexVC97 0:3bdfc1556537 5 * of this software and associated documentation files (the "Software"), to deal
AlexVC97 0:3bdfc1556537 6 * in the Software without restriction, including without limitation the rights
AlexVC97 0:3bdfc1556537 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
AlexVC97 0:3bdfc1556537 8 * copies of the Software, and to permit persons to whom the Software is
AlexVC97 0:3bdfc1556537 9 * furnished to do so, subject to the following conditions:
AlexVC97 0:3bdfc1556537 10 *
AlexVC97 0:3bdfc1556537 11 * The above copyright notice and this permission notice shall be included in
AlexVC97 0:3bdfc1556537 12 * all copies or substantial portions of the Software.
AlexVC97 0:3bdfc1556537 13 *
AlexVC97 0:3bdfc1556537 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
AlexVC97 0:3bdfc1556537 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
AlexVC97 0:3bdfc1556537 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AlexVC97 0:3bdfc1556537 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
AlexVC97 0:3bdfc1556537 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
AlexVC97 0:3bdfc1556537 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
AlexVC97 0:3bdfc1556537 20 * SOFTWARE.
AlexVC97 0:3bdfc1556537 21 */
AlexVC97 0:3bdfc1556537 22 #include <string.h>
AlexVC97 0:3bdfc1556537 23 #include "ff.h"
AlexVC97 0:3bdfc1556537 24 #include "FATDirHandle.h"
AlexVC97 0:3bdfc1556537 25
AlexVC97 0:3bdfc1556537 26 using namespace mbed;
AlexVC97 0:3bdfc1556537 27
AlexVC97 0:3bdfc1556537 28 FATDirHandle::FATDirHandle(const FATFS_DIR &the_dir) {
AlexVC97 0:3bdfc1556537 29 dir = the_dir;
AlexVC97 0:3bdfc1556537 30 }
AlexVC97 0:3bdfc1556537 31
AlexVC97 0:3bdfc1556537 32 int FATDirHandle::closedir() {
AlexVC97 0:3bdfc1556537 33 int retval = f_closedir(&dir);
AlexVC97 0:3bdfc1556537 34 delete this;
AlexVC97 0:3bdfc1556537 35 return retval;
AlexVC97 0:3bdfc1556537 36 }
AlexVC97 0:3bdfc1556537 37
AlexVC97 0:3bdfc1556537 38 struct dirent *FATDirHandle::readdir() {
AlexVC97 0:3bdfc1556537 39 FILINFO finfo;
AlexVC97 0:3bdfc1556537 40
AlexVC97 0:3bdfc1556537 41 #if _USE_LFN
AlexVC97 0:3bdfc1556537 42 finfo.lfname = cur_entry.d_name;
AlexVC97 0:3bdfc1556537 43 finfo.lfsize = sizeof(cur_entry.d_name);
AlexVC97 0:3bdfc1556537 44 #endif // _USE_LFN
AlexVC97 0:3bdfc1556537 45
AlexVC97 0:3bdfc1556537 46 FRESULT res = f_readdir(&dir, &finfo);
AlexVC97 0:3bdfc1556537 47
AlexVC97 0:3bdfc1556537 48 #if _USE_LFN
AlexVC97 0:3bdfc1556537 49 if(res != 0 || finfo.fname[0]==0) {
AlexVC97 0:3bdfc1556537 50 return NULL;
AlexVC97 0:3bdfc1556537 51 } else {
AlexVC97 0:3bdfc1556537 52 if(cur_entry.d_name[0]==0) {
AlexVC97 0:3bdfc1556537 53 // No long filename so use short filename.
AlexVC97 0:3bdfc1556537 54 memcpy(cur_entry.d_name, finfo.fname, sizeof(finfo.fname));
AlexVC97 0:3bdfc1556537 55 }
AlexVC97 0:3bdfc1556537 56 return &cur_entry;
AlexVC97 0:3bdfc1556537 57 }
AlexVC97 0:3bdfc1556537 58 #else
AlexVC97 0:3bdfc1556537 59 if(res != 0 || finfo.fname[0]==0) {
AlexVC97 0:3bdfc1556537 60 return NULL;
AlexVC97 0:3bdfc1556537 61 } else {
AlexVC97 0:3bdfc1556537 62 memcpy(cur_entry.d_name, finfo.fname, sizeof(finfo.fname));
AlexVC97 0:3bdfc1556537 63 return &cur_entry;
AlexVC97 0:3bdfc1556537 64 }
AlexVC97 0:3bdfc1556537 65 #endif /* _USE_LFN */
AlexVC97 0:3bdfc1556537 66 }
AlexVC97 0:3bdfc1556537 67
AlexVC97 0:3bdfc1556537 68 void FATDirHandle::rewinddir() {
AlexVC97 0:3bdfc1556537 69 dir.index = 0;
AlexVC97 0:3bdfc1556537 70 }
AlexVC97 0:3bdfc1556537 71
AlexVC97 0:3bdfc1556537 72 off_t FATDirHandle::telldir() {
AlexVC97 0:3bdfc1556537 73 return dir.index;
AlexVC97 0:3bdfc1556537 74 }
AlexVC97 0:3bdfc1556537 75
AlexVC97 0:3bdfc1556537 76 void FATDirHandle::seekdir(off_t location) {
AlexVC97 0:3bdfc1556537 77 dir.index = location;
AlexVC97 0:3bdfc1556537 78 }
AlexVC97 0:3bdfc1556537 79