Adam Green / FatFileSystem

Updated FAT File System driver. Features include: * Updated to R0.09 - Sep 06, 2011 [[http://elm-chan.org/fsw/ff/00index_e.html]] * Bug fixes from Stéphane Bausseron ** [[http://mbed.org/forum/mbed/topic/2273/?page=1#comment-11521]] ** [[http://mbed.org/forum/mbed/topic/2307]] * Long filename support enabled and exposed through mbed SDK.

Dependents:   WeatherStation GPSLogger Deneme dotHR_EKF ... more

FATDirHandle.cpp

Committer:
AdamGreen
Date:
2011-12-25
Revision:
0:6ceefe1c53e4

File content as of revision 0:6ceefe1c53e4:

/* mbed Microcontroller Library - FATDirHandle
 * Copyright (c) 2008, sford
 */
 
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "ff.h"
#include "FATDirHandle.h"
#include "FATFileSystem.h"

namespace mbed {

FATDirHandle::FATDirHandle(const FATFS_DIR &the_dir) {
    dir = the_dir;
}

int FATDirHandle::closedir() {
    delete this;
    return 0;
}

struct dirent *FATDirHandle::readdir() {
    FILINFO finfo;

#if _USE_LFN
    finfo.lfname = cur_entry.d_name;
    finfo.lfsize = sizeof(cur_entry.d_name);
#endif // _USE_LFN

    FRESULT res = f_readdir(&dir, &finfo);

#if _USE_LFN
    if(res != 0 || finfo.fname[0]==0) {
        return NULL;
    } else {
        if(cur_entry.d_name[0]==0) {
            // No long filename so use short filename.
            memcpy(cur_entry.d_name, finfo.fname, sizeof(finfo.fname));
        }
        return &cur_entry;
    }
#else
    if(res != 0 || finfo.fname[0]==0) {
        return NULL;
    } else {
        memcpy(cur_entry.d_name, finfo.fname, sizeof(finfo.fname));
        return &cur_entry;
    }
#endif /* _USE_LFN */
}

void FATDirHandle::rewinddir() {
    dir.index = 0;
}

off_t FATDirHandle::telldir() {
    return dir.index;
}

void FATDirHandle::seekdir(off_t location) {
    dir.index = location;
}

}