Daiki Kato / mbed-os-lychee

mbed-os for GR-LYCHEE

Dependents:   mbed-os-example-blinky-gr-lychee GR-Boads_Camera_sample GR-Boards_Audio_Recoder GR-Boads_Camera_DisplayApp ... more

features/filesystem/Dir.cpp@0:f782d9c66c49, 2018-02-02 (annotated)

Committer:
dkato
Date:
Fri Feb 02 05:42:23 2018 +0000
Revision:
0:f782d9c66c49
mbed-os for GR-LYCHEE

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dkato 0:f782d9c66c49 1 /* mbed Microcontroller Library
dkato 0:f782d9c66c49 2 * Copyright (c) 2015 ARM Limited
dkato 0:f782d9c66c49 3 *
dkato 0:f782d9c66c49 4 * Licensed under the Apache License, Version 2.0 (the "License");
dkato 0:f782d9c66c49 5 * you may not use this file except in compliance with the License.
dkato 0:f782d9c66c49 6 * You may obtain a copy of the License at
dkato 0:f782d9c66c49 7 *
dkato 0:f782d9c66c49 8 * http://www.apache.org/licenses/LICENSE-2.0
dkato 0:f782d9c66c49 9 *
dkato 0:f782d9c66c49 10 * Unless required by applicable law or agreed to in writing, software
dkato 0:f782d9c66c49 11 * distributed under the License is distributed on an "AS IS" BASIS,
dkato 0:f782d9c66c49 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
dkato 0:f782d9c66c49 13 * See the License for the specific language governing permissions and
dkato 0:f782d9c66c49 14 * limitations under the License.
dkato 0:f782d9c66c49 15 */
dkato 0:f782d9c66c49 16
dkato 0:f782d9c66c49 17 #include "Dir.h"
dkato 0:f782d9c66c49 18 #include "mbed.h"
dkato 0:f782d9c66c49 19 #include <errno.h>
dkato 0:f782d9c66c49 20
dkato 0:f782d9c66c49 21
dkato 0:f782d9c66c49 22 Dir::Dir()
dkato 0:f782d9c66c49 23 : _fs(0), _dir(0)
dkato 0:f782d9c66c49 24 {
dkato 0:f782d9c66c49 25 }
dkato 0:f782d9c66c49 26
dkato 0:f782d9c66c49 27 Dir::Dir(FileSystem *fs, const char *path)
dkato 0:f782d9c66c49 28 : _fs(0), _dir(0)
dkato 0:f782d9c66c49 29 {
dkato 0:f782d9c66c49 30 open(fs, path);
dkato 0:f782d9c66c49 31 }
dkato 0:f782d9c66c49 32
dkato 0:f782d9c66c49 33 Dir::~Dir()
dkato 0:f782d9c66c49 34 {
dkato 0:f782d9c66c49 35 if (_fs) {
dkato 0:f782d9c66c49 36 close();
dkato 0:f782d9c66c49 37 }
dkato 0:f782d9c66c49 38 }
dkato 0:f782d9c66c49 39
dkato 0:f782d9c66c49 40 int Dir::open(FileSystem *fs, const char *path)
dkato 0:f782d9c66c49 41 {
dkato 0:f782d9c66c49 42 if (_fs) {
dkato 0:f782d9c66c49 43 return -EINVAL;
dkato 0:f782d9c66c49 44 }
dkato 0:f782d9c66c49 45
dkato 0:f782d9c66c49 46 _fs = fs;
dkato 0:f782d9c66c49 47 return _fs->dir_open(&_dir, path);
dkato 0:f782d9c66c49 48 }
dkato 0:f782d9c66c49 49
dkato 0:f782d9c66c49 50 int Dir::close()
dkato 0:f782d9c66c49 51 {
dkato 0:f782d9c66c49 52 if (!_fs) {
dkato 0:f782d9c66c49 53 return -EINVAL;
dkato 0:f782d9c66c49 54 }
dkato 0:f782d9c66c49 55
dkato 0:f782d9c66c49 56 int err = _fs->dir_close(_dir);
dkato 0:f782d9c66c49 57 _fs = 0;
dkato 0:f782d9c66c49 58 return err;
dkato 0:f782d9c66c49 59 }
dkato 0:f782d9c66c49 60
dkato 0:f782d9c66c49 61 ssize_t Dir::read(struct dirent *ent)
dkato 0:f782d9c66c49 62 {
dkato 0:f782d9c66c49 63 MBED_ASSERT(_fs);
dkato 0:f782d9c66c49 64 memset(ent, 0, sizeof(struct dirent));
dkato 0:f782d9c66c49 65 return _fs->dir_read(_dir, ent);
dkato 0:f782d9c66c49 66 }
dkato 0:f782d9c66c49 67
dkato 0:f782d9c66c49 68 void Dir::seek(off_t offset)
dkato 0:f782d9c66c49 69 {
dkato 0:f782d9c66c49 70 MBED_ASSERT(_fs);
dkato 0:f782d9c66c49 71 return _fs->dir_seek(_dir, offset);
dkato 0:f782d9c66c49 72 }
dkato 0:f782d9c66c49 73
dkato 0:f782d9c66c49 74 off_t Dir::tell()
dkato 0:f782d9c66c49 75 {
dkato 0:f782d9c66c49 76 MBED_ASSERT(_fs);
dkato 0:f782d9c66c49 77 return _fs->dir_tell(_dir);
dkato 0:f782d9c66c49 78 }
dkato 0:f782d9c66c49 79
dkato 0:f782d9c66c49 80 void Dir::rewind()
dkato 0:f782d9c66c49 81 {
dkato 0:f782d9c66c49 82 MBED_ASSERT(_fs);
dkato 0:f782d9c66c49 83 return _fs->dir_rewind(_dir);
dkato 0:f782d9c66c49 84 }
dkato 0:f782d9c66c49 85
dkato 0:f782d9c66c49 86 size_t Dir::size()
dkato 0:f782d9c66c49 87 {
dkato 0:f782d9c66c49 88 MBED_ASSERT(_fs);
dkato 0:f782d9c66c49 89 return _fs->dir_size(_dir);
dkato 0:f782d9c66c49 90 }