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tmk_keyboard/tool/mbed/mbed-sdk/libraries/fs/fat/FATDirHandle.cpp

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/* mbed Microcontroller Library
* Copyright (c) 2006-2012 ARM Limited
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <string.h>
#include "ff.h"
#include "FATDirHandle.h"
using 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;
}