james kain / Mbed 2 deprecated GPS_Incremental

JEK changes enabling proper recording of IMU/GPS datastrams - 02-APR-2013

Dependencies:   mbed

Fork of GPS_Incremental by Dan Matthews

FatFileSystem/FATDirHandle.cpp@9:b45feb91ba38, 2013-04-19 (annotated)

Committer:
jekain314
Date:
Fri Apr 19 16:21:27 2013 +0000
Revision:
9:b45feb91ba38
Parent:
0:c746ee34feae 
update to allow better imu gps data collection

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dannyman939 0:c746ee34feae 1 /* mbed Microcontroller Library - FATDirHandle
dannyman939 0:c746ee34feae 2 * Copyright (c) 2008, sford
dannyman939 0:c746ee34feae 3 */
dannyman939 0:c746ee34feae 4
dannyman939 0:c746ee34feae 5 #include <stdio.h>
dannyman939 0:c746ee34feae 6 #include <stdlib.h>
dannyman939 0:c746ee34feae 7 #include <string.h>
dannyman939 0:c746ee34feae 8 #include "ff.h"
dannyman939 0:c746ee34feae 9 #include "FATDirHandle.h"
dannyman939 0:c746ee34feae 10 #include "FATFileSystem.h"
dannyman939 0:c746ee34feae 11
dannyman939 0:c746ee34feae 12 namespace mbed {
dannyman939 0:c746ee34feae 13
dannyman939 0:c746ee34feae 14 FATDirHandle::FATDirHandle(const FATFS_DIR &the_dir) {
dannyman939 0:c746ee34feae 15 dir = the_dir;
dannyman939 0:c746ee34feae 16 }
dannyman939 0:c746ee34feae 17
dannyman939 0:c746ee34feae 18 int FATDirHandle::closedir() {
dannyman939 0:c746ee34feae 19 delete this;
dannyman939 0:c746ee34feae 20 return 0;
dannyman939 0:c746ee34feae 21 }
dannyman939 0:c746ee34feae 22
dannyman939 0:c746ee34feae 23 struct dirent *FATDirHandle::readdir() {
dannyman939 0:c746ee34feae 24 FILINFO finfo;
dannyman939 0:c746ee34feae 25
dannyman939 0:c746ee34feae 26 #if _USE_LFN
dannyman939 0:c746ee34feae 27 finfo.lfname = cur_entry.d_name;
dannyman939 0:c746ee34feae 28 finfo.lfsize = sizeof(cur_entry.d_name);
dannyman939 0:c746ee34feae 29 #endif // _USE_LFN
dannyman939 0:c746ee34feae 30
dannyman939 0:c746ee34feae 31 FRESULT res = f_readdir(&dir, &finfo);
dannyman939 0:c746ee34feae 32
dannyman939 0:c746ee34feae 33 #if _USE_LFN
dannyman939 0:c746ee34feae 34 if(res != 0 || finfo.fname[0]==0) {
dannyman939 0:c746ee34feae 35 return NULL;
dannyman939 0:c746ee34feae 36 } else {
dannyman939 0:c746ee34feae 37 if(cur_entry.d_name[0]==0) {
dannyman939 0:c746ee34feae 38 // No long filename so use short filename.
dannyman939 0:c746ee34feae 39 memcpy(cur_entry.d_name, finfo.fname, sizeof(finfo.fname));
dannyman939 0:c746ee34feae 40 }
dannyman939 0:c746ee34feae 41 return &cur_entry;
dannyman939 0:c746ee34feae 42 }
dannyman939 0:c746ee34feae 43 #else
dannyman939 0:c746ee34feae 44 if(res != 0 || finfo.fname[0]==0) {
dannyman939 0:c746ee34feae 45 return NULL;
dannyman939 0:c746ee34feae 46 } else {
dannyman939 0:c746ee34feae 47 memcpy(cur_entry.d_name, finfo.fname, sizeof(finfo.fname));
dannyman939 0:c746ee34feae 48 return &cur_entry;
dannyman939 0:c746ee34feae 49 }
dannyman939 0:c746ee34feae 50 #endif /* _USE_LFN */
dannyman939 0:c746ee34feae 51 }
dannyman939 0:c746ee34feae 52
dannyman939 0:c746ee34feae 53 void FATDirHandle::rewinddir() {
dannyman939 0:c746ee34feae 54 dir.index = 0;
dannyman939 0:c746ee34feae 55 }
dannyman939 0:c746ee34feae 56
dannyman939 0:c746ee34feae 57 off_t FATDirHandle::telldir() {
dannyman939 0:c746ee34feae 58 return dir.index;
dannyman939 0:c746ee34feae 59 }
dannyman939 0:c746ee34feae 60
dannyman939 0:c746ee34feae 61 void FATDirHandle::seekdir(off_t location) {
dannyman939 0:c746ee34feae 62 dir.index = location;
dannyman939 0:c746ee34feae 63 }
dannyman939 0:c746ee34feae 64
dannyman939 0:c746ee34feae 65 }
dannyman939 0:c746ee34feae 66