Adam Green
Web server based weather station using Sparkfun Weather Meters.
Dependencies: FatFileSystem mbed WeatherMeters SDFileSystem
FatFileSystem/FATDirHandle.cpp@0:616601bde9fb, 2012-02-23 (annotated)
- Committer:
- AdamGreen
- Date:
- Thu Feb 23 21:38:39 2012 +0000
- Revision:
- 0:616601bde9fb
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| AdamGreen | 0:616601bde9fb | 1 | /* mbed Microcontroller Library - FATDirHandle |
| AdamGreen | 0:616601bde9fb | 2 | * Copyright (c) 2008, sford |
| AdamGreen | 0:616601bde9fb | 3 | */ |
| AdamGreen | 0:616601bde9fb | 4 | |
| AdamGreen | 0:616601bde9fb | 5 | #include <stdio.h> |
| AdamGreen | 0:616601bde9fb | 6 | #include <stdlib.h> |
| AdamGreen | 0:616601bde9fb | 7 | #include <string.h> |
| AdamGreen | 0:616601bde9fb | 8 | #include "ff.h" |
| AdamGreen | 0:616601bde9fb | 9 | #include "FATDirHandle.h" |
| AdamGreen | 0:616601bde9fb | 10 | #include "FATFileSystem.h" |
| AdamGreen | 0:616601bde9fb | 11 | |
| AdamGreen | 0:616601bde9fb | 12 | namespace mbed { |
| AdamGreen | 0:616601bde9fb | 13 | |
| AdamGreen | 0:616601bde9fb | 14 | FATDirHandle::FATDirHandle(const FATFS_DIR &the_dir) { |
| AdamGreen | 0:616601bde9fb | 15 | dir = the_dir; |
| AdamGreen | 0:616601bde9fb | 16 | } |
| AdamGreen | 0:616601bde9fb | 17 | |
| AdamGreen | 0:616601bde9fb | 18 | int FATDirHandle::closedir() { |
| AdamGreen | 0:616601bde9fb | 19 | delete this; |
| AdamGreen | 0:616601bde9fb | 20 | return 0; |
| AdamGreen | 0:616601bde9fb | 21 | } |
| AdamGreen | 0:616601bde9fb | 22 | |
| AdamGreen | 0:616601bde9fb | 23 | struct dirent *FATDirHandle::readdir() { |
| AdamGreen | 0:616601bde9fb | 24 | FILINFO finfo; |
| AdamGreen | 0:616601bde9fb | 25 | |
| AdamGreen | 0:616601bde9fb | 26 | #if _USE_LFN |
| AdamGreen | 0:616601bde9fb | 27 | finfo.lfname = cur_entry.d_name; |
| AdamGreen | 0:616601bde9fb | 28 | finfo.lfsize = sizeof(cur_entry.d_name); |
| AdamGreen | 0:616601bde9fb | 29 | #endif // _USE_LFN |
| AdamGreen | 0:616601bde9fb | 30 | |
| AdamGreen | 0:616601bde9fb | 31 | FRESULT res = f_readdir(&dir, &finfo); |
| AdamGreen | 0:616601bde9fb | 32 | |
| AdamGreen | 0:616601bde9fb | 33 | #if _USE_LFN |
| AdamGreen | 0:616601bde9fb | 34 | if(res != 0 || finfo.fname[0]==0) { |
| AdamGreen | 0:616601bde9fb | 35 | return NULL; |
| AdamGreen | 0:616601bde9fb | 36 | } else { |
| AdamGreen | 0:616601bde9fb | 37 | if(cur_entry.d_name[0]==0) { |
| AdamGreen | 0:616601bde9fb | 38 | // No long filename so use short filename. |
| AdamGreen | 0:616601bde9fb | 39 | memcpy(cur_entry.d_name, finfo.fname, sizeof(finfo.fname)); |
| AdamGreen | 0:616601bde9fb | 40 | } |
| AdamGreen | 0:616601bde9fb | 41 | return &cur_entry; |
| AdamGreen | 0:616601bde9fb | 42 | } |
| AdamGreen | 0:616601bde9fb | 43 | #else |
| AdamGreen | 0:616601bde9fb | 44 | if(res != 0 || finfo.fname[0]==0) { |
| AdamGreen | 0:616601bde9fb | 45 | return NULL; |
| AdamGreen | 0:616601bde9fb | 46 | } else { |
| AdamGreen | 0:616601bde9fb | 47 | memcpy(cur_entry.d_name, finfo.fname, sizeof(finfo.fname)); |
| AdamGreen | 0:616601bde9fb | 48 | return &cur_entry; |
| AdamGreen | 0:616601bde9fb | 49 | } |
| AdamGreen | 0:616601bde9fb | 50 | #endif /* _USE_LFN */ |
| AdamGreen | 0:616601bde9fb | 51 | } |
| AdamGreen | 0:616601bde9fb | 52 | |
| AdamGreen | 0:616601bde9fb | 53 | void FATDirHandle::rewinddir() { |
| AdamGreen | 0:616601bde9fb | 54 | dir.index = 0; |
| AdamGreen | 0:616601bde9fb | 55 | } |
| AdamGreen | 0:616601bde9fb | 56 | |
| AdamGreen | 0:616601bde9fb | 57 | off_t FATDirHandle::telldir() { |
| AdamGreen | 0:616601bde9fb | 58 | return dir.index; |
| AdamGreen | 0:616601bde9fb | 59 | } |
| AdamGreen | 0:616601bde9fb | 60 | |
| AdamGreen | 0:616601bde9fb | 61 | void FATDirHandle::seekdir(off_t location) { |
| AdamGreen | 0:616601bde9fb | 62 | dir.index = location; |
| AdamGreen | 0:616601bde9fb | 63 | } |
| AdamGreen | 0:616601bde9fb | 64 | |
| AdamGreen | 0:616601bde9fb | 65 | } |
| AdamGreen | 0:616601bde9fb | 66 |