Nicolas Borla / Mbed OS BBR_1Ebene

BBR 1 Ebene

mbed-os/features/filesystem/Dir.cpp@0:fbdae7e6d805, 2018-05-14 (annotated)

Committer:
borlanic
Date:
Mon May 14 11:29:06 2018 +0000
Revision:
0:fbdae7e6d805
BBR

Who changed what in which revision?

UserRevisionLine numberNew contents of line
borlanic 0:fbdae7e6d805 1 /* mbed Microcontroller Library
borlanic 0:fbdae7e6d805 2 * Copyright (c) 2015 ARM Limited
borlanic 0:fbdae7e6d805 3 *
borlanic 0:fbdae7e6d805 4 * Licensed under the Apache License, Version 2.0 (the "License");
borlanic 0:fbdae7e6d805 5 * you may not use this file except in compliance with the License.
borlanic 0:fbdae7e6d805 6 * You may obtain a copy of the License at
borlanic 0:fbdae7e6d805 7 *
borlanic 0:fbdae7e6d805 8 * http://www.apache.org/licenses/LICENSE-2.0
borlanic 0:fbdae7e6d805 9 *
borlanic 0:fbdae7e6d805 10 * Unless required by applicable law or agreed to in writing, software
borlanic 0:fbdae7e6d805 11 * distributed under the License is distributed on an "AS IS" BASIS,
borlanic 0:fbdae7e6d805 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
borlanic 0:fbdae7e6d805 13 * See the License for the specific language governing permissions and
borlanic 0:fbdae7e6d805 14 * limitations under the License.
borlanic 0:fbdae7e6d805 15 */
borlanic 0:fbdae7e6d805 16
borlanic 0:fbdae7e6d805 17 #include "Dir.h"
borlanic 0:fbdae7e6d805 18 #include "mbed.h"
borlanic 0:fbdae7e6d805 19 #include <errno.h>
borlanic 0:fbdae7e6d805 20
borlanic 0:fbdae7e6d805 21
borlanic 0:fbdae7e6d805 22 Dir::Dir()
borlanic 0:fbdae7e6d805 23 : _fs(0), _dir(0)
borlanic 0:fbdae7e6d805 24 {
borlanic 0:fbdae7e6d805 25 }
borlanic 0:fbdae7e6d805 26
borlanic 0:fbdae7e6d805 27 Dir::Dir(FileSystem *fs, const char *path)
borlanic 0:fbdae7e6d805 28 : _fs(0), _dir(0)
borlanic 0:fbdae7e6d805 29 {
borlanic 0:fbdae7e6d805 30 open(fs, path);
borlanic 0:fbdae7e6d805 31 }
borlanic 0:fbdae7e6d805 32
borlanic 0:fbdae7e6d805 33 Dir::~Dir()
borlanic 0:fbdae7e6d805 34 {
borlanic 0:fbdae7e6d805 35 if (_fs) {
borlanic 0:fbdae7e6d805 36 close();
borlanic 0:fbdae7e6d805 37 }
borlanic 0:fbdae7e6d805 38 }
borlanic 0:fbdae7e6d805 39
borlanic 0:fbdae7e6d805 40 int Dir::open(FileSystem *fs, const char *path)
borlanic 0:fbdae7e6d805 41 {
borlanic 0:fbdae7e6d805 42 if (_fs) {
borlanic 0:fbdae7e6d805 43 return -EINVAL;
borlanic 0:fbdae7e6d805 44 }
borlanic 0:fbdae7e6d805 45
borlanic 0:fbdae7e6d805 46 int err = fs->dir_open(&_dir, path);
borlanic 0:fbdae7e6d805 47 if (!err) {
borlanic 0:fbdae7e6d805 48 _fs = fs;
borlanic 0:fbdae7e6d805 49 }
borlanic 0:fbdae7e6d805 50
borlanic 0:fbdae7e6d805 51 return err;
borlanic 0:fbdae7e6d805 52 }
borlanic 0:fbdae7e6d805 53
borlanic 0:fbdae7e6d805 54 int Dir::close()
borlanic 0:fbdae7e6d805 55 {
borlanic 0:fbdae7e6d805 56 if (!_fs) {
borlanic 0:fbdae7e6d805 57 return -EINVAL;
borlanic 0:fbdae7e6d805 58 }
borlanic 0:fbdae7e6d805 59
borlanic 0:fbdae7e6d805 60 int err = _fs->dir_close(_dir);
borlanic 0:fbdae7e6d805 61 _fs = 0;
borlanic 0:fbdae7e6d805 62 return err;
borlanic 0:fbdae7e6d805 63 }
borlanic 0:fbdae7e6d805 64
borlanic 0:fbdae7e6d805 65 ssize_t Dir::read(struct dirent *ent)
borlanic 0:fbdae7e6d805 66 {
borlanic 0:fbdae7e6d805 67 MBED_ASSERT(_fs);
borlanic 0:fbdae7e6d805 68 memset(ent, 0, sizeof(struct dirent));
borlanic 0:fbdae7e6d805 69 return _fs->dir_read(_dir, ent);
borlanic 0:fbdae7e6d805 70 }
borlanic 0:fbdae7e6d805 71
borlanic 0:fbdae7e6d805 72 void Dir::seek(off_t offset)
borlanic 0:fbdae7e6d805 73 {
borlanic 0:fbdae7e6d805 74 MBED_ASSERT(_fs);
borlanic 0:fbdae7e6d805 75 return _fs->dir_seek(_dir, offset);
borlanic 0:fbdae7e6d805 76 }
borlanic 0:fbdae7e6d805 77
borlanic 0:fbdae7e6d805 78 off_t Dir::tell()
borlanic 0:fbdae7e6d805 79 {
borlanic 0:fbdae7e6d805 80 MBED_ASSERT(_fs);
borlanic 0:fbdae7e6d805 81 return _fs->dir_tell(_dir);
borlanic 0:fbdae7e6d805 82 }
borlanic 0:fbdae7e6d805 83
borlanic 0:fbdae7e6d805 84 void Dir::rewind()
borlanic 0:fbdae7e6d805 85 {
borlanic 0:fbdae7e6d805 86 MBED_ASSERT(_fs);
borlanic 0:fbdae7e6d805 87 return _fs->dir_rewind(_dir);
borlanic 0:fbdae7e6d805 88 }
borlanic 0:fbdae7e6d805 89
borlanic 0:fbdae7e6d805 90 size_t Dir::size()
borlanic 0:fbdae7e6d805 91 {
borlanic 0:fbdae7e6d805 92 MBED_ASSERT(_fs);
borlanic 0:fbdae7e6d805 93 return _fs->dir_size(_dir);
borlanic 0:fbdae7e6d805 94 }