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FATDirHandle.cpp
00001 /* mbed Microcontroller Library - FATDirHandle 00002 * Copyright (c) 2008, sford 00003 */ 00004 00005 #include <stdio.h> 00006 #include <stdlib.h> 00007 #include <string.h> 00008 #include "ff.h" 00009 #include "FATDirHandle.h" 00010 #include "FATFileSystem.h" 00011 00012 namespace mbed { 00013 00014 FATDirHandle::FATDirHandle(const DIR_t &the_dir) { 00015 dir = the_dir; 00016 } 00017 00018 int FATDirHandle::closedir() { 00019 delete this; 00020 return 0; 00021 } 00022 00023 struct dirent *FATDirHandle::readdir() { 00024 FILINFO finfo; 00025 #if _USE_LFN 00026 static char lfn[_MAX_LFN * (_LFN_UNICODE ? 2 : 1) + 1]; 00027 finfo.lfname = lfn; 00028 finfo.lfsize = sizeof(lfn); 00029 #endif 00030 FRESULT res = f_readdir(&dir, &finfo); 00031 if(res != 0 || finfo.fname[0]==0) { 00032 return NULL; 00033 } else { 00034 char* fn; 00035 int stringSize = 0; 00036 #if _USE_LFN 00037 fn = *finfo.lfname ? finfo.lfname : finfo.fname; 00038 stringSize = finfo.lfsize; 00039 #else 00040 fn = fno.fname; 00041 stringSize = sizeof(finfo.fname); 00042 #endif 00043 memcpy(cur_entry.d_name, fn, stringSize); 00044 return &cur_entry; 00045 } 00046 } 00047 00048 void FATDirHandle::rewinddir() { 00049 dir.index = 0; 00050 } 00051 00052 off_t FATDirHandle::telldir() { 00053 return dir.index; 00054 } 00055 00056 void FATDirHandle::seekdir(off_t location) { 00057 dir.index = location; 00058 } 00059 00060 } 00061
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