MRD Lab / SpindleBot_1_5b

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Dependencies:   MX12 ServoRingBuffer mbed-src

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SDFileSystem/FATFileSystem/FATDirHandle.cpp@14:7c5beaa9fb01, 2015-08-13 (annotated)

Committer:
labmrd
Date:
Thu Aug 13 17:55:40 2015 +0000
Revision:
14:7c5beaa9fb01
Parent:
4:e44ac08027bd 
This revision marks Mark's mark of resignation from the labmrd mbed account.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
labmrd 4:e44ac08027bd 1 /* mbed Microcontroller Library
labmrd 4:e44ac08027bd 2 * Copyright (c) 2006-2012 ARM Limited
labmrd 4:e44ac08027bd 3 *
labmrd 4:e44ac08027bd 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
labmrd 4:e44ac08027bd 5 * of this software and associated documentation files (the "Software"), to deal
labmrd 4:e44ac08027bd 6 * in the Software without restriction, including without limitation the rights
labmrd 4:e44ac08027bd 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
labmrd 4:e44ac08027bd 8 * copies of the Software, and to permit persons to whom the Software is
labmrd 4:e44ac08027bd 9 * furnished to do so, subject to the following conditions:
labmrd 4:e44ac08027bd 10 *
labmrd 4:e44ac08027bd 11 * The above copyright notice and this permission notice shall be included in
labmrd 4:e44ac08027bd 12 * all copies or substantial portions of the Software.
labmrd 4:e44ac08027bd 13 *
labmrd 4:e44ac08027bd 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
labmrd 4:e44ac08027bd 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
labmrd 4:e44ac08027bd 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
labmrd 4:e44ac08027bd 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
labmrd 4:e44ac08027bd 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
labmrd 4:e44ac08027bd 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
labmrd 4:e44ac08027bd 20 * SOFTWARE.
labmrd 4:e44ac08027bd 21 */
labmrd 4:e44ac08027bd 22 #include <string.h>
labmrd 4:e44ac08027bd 23 #include "ff.h"
labmrd 4:e44ac08027bd 24 #include "FATDirHandle.h"
labmrd 4:e44ac08027bd 25
labmrd 4:e44ac08027bd 26 using namespace mbed;
labmrd 4:e44ac08027bd 27
labmrd 4:e44ac08027bd 28 FATDirHandle::FATDirHandle(const FATFS_DIR &the_dir) {
labmrd 4:e44ac08027bd 29 dir = the_dir;
labmrd 4:e44ac08027bd 30 }
labmrd 4:e44ac08027bd 31
labmrd 4:e44ac08027bd 32 int FATDirHandle::closedir() {
labmrd 4:e44ac08027bd 33 delete this;
labmrd 4:e44ac08027bd 34 return 0;
labmrd 4:e44ac08027bd 35 }
labmrd 4:e44ac08027bd 36
labmrd 4:e44ac08027bd 37 struct dirent *FATDirHandle::readdir() {
labmrd 4:e44ac08027bd 38 FILINFO finfo;
labmrd 4:e44ac08027bd 39
labmrd 4:e44ac08027bd 40 #if _USE_LFN
labmrd 4:e44ac08027bd 41 finfo.lfname = cur_entry.d_name;
labmrd 4:e44ac08027bd 42 finfo.lfsize = sizeof(cur_entry.d_name);
labmrd 4:e44ac08027bd 43 #endif // _USE_LFN
labmrd 4:e44ac08027bd 44
labmrd 4:e44ac08027bd 45 FRESULT res = f_readdir(&dir, &finfo);
labmrd 4:e44ac08027bd 46
labmrd 4:e44ac08027bd 47 #if _USE_LFN
labmrd 4:e44ac08027bd 48 if(res != 0 || finfo.fname[0]==0) {
labmrd 4:e44ac08027bd 49 return NULL;
labmrd 4:e44ac08027bd 50 } else {
labmrd 4:e44ac08027bd 51 if(cur_entry.d_name[0]==0) {
labmrd 4:e44ac08027bd 52 // No long filename so use short filename.
labmrd 4:e44ac08027bd 53 memcpy(cur_entry.d_name, finfo.fname, sizeof(finfo.fname));
labmrd 4:e44ac08027bd 54 }
labmrd 4:e44ac08027bd 55 return &cur_entry;
labmrd 4:e44ac08027bd 56 }
labmrd 4:e44ac08027bd 57 #else
labmrd 4:e44ac08027bd 58 if(res != 0 || finfo.fname[0]==0) {
labmrd 4:e44ac08027bd 59 return NULL;
labmrd 4:e44ac08027bd 60 } else {
labmrd 4:e44ac08027bd 61 memcpy(cur_entry.d_name, finfo.fname, sizeof(finfo.fname));
labmrd 4:e44ac08027bd 62 return &cur_entry;
labmrd 4:e44ac08027bd 63 }
labmrd 4:e44ac08027bd 64 #endif /* _USE_LFN */
labmrd 4:e44ac08027bd 65 }
labmrd 4:e44ac08027bd 66
labmrd 4:e44ac08027bd 67 void FATDirHandle::rewinddir() {
labmrd 4:e44ac08027bd 68 dir.index = 0;
labmrd 4:e44ac08027bd 69 }
labmrd 4:e44ac08027bd 70
labmrd 4:e44ac08027bd 71 off_t FATDirHandle::telldir() {
labmrd 4:e44ac08027bd 72 return dir.index;
labmrd 4:e44ac08027bd 73 }
labmrd 4:e44ac08027bd 74
labmrd 4:e44ac08027bd 75 void FATDirHandle::seekdir(off_t location) {
labmrd 4:e44ac08027bd 76 dir.index = location;
labmrd 4:e44ac08027bd 77 }
labmrd 4:e44ac08027bd 78