mirror of https://github.com/ARMmbed/mbed-os.git
95 lines
1.6 KiB
C++
95 lines
1.6 KiB
C++
/* mbed Microcontroller Library
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* Copyright (c) 2015 ARM Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "Dir.h"
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#include "mbed.h"
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#include <errno.h>
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Dir::Dir()
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: _fs(0), _dir(0)
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{
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}
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Dir::Dir(FileSystem *fs, const char *path)
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: _fs(0), _dir(0)
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{
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open(fs, path);
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}
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Dir::~Dir()
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{
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if (_fs) {
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close();
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}
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}
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int Dir::open(FileSystem *fs, const char *path)
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{
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if (_fs) {
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return -EINVAL;
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}
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int err = fs->dir_open(&_dir, path);
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if (!err) {
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_fs = fs;
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}
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return err;
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}
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int Dir::close()
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{
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if (!_fs) {
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return -EINVAL;
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}
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int err = _fs->dir_close(_dir);
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_fs = 0;
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return err;
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}
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ssize_t Dir::read(struct dirent *ent)
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{
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MBED_ASSERT(_fs);
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memset(ent, 0, sizeof(struct dirent));
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return _fs->dir_read(_dir, ent);
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}
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void Dir::seek(off_t offset)
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{
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MBED_ASSERT(_fs);
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return _fs->dir_seek(_dir, offset);
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}
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off_t Dir::tell()
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{
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MBED_ASSERT(_fs);
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return _fs->dir_tell(_dir);
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}
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void Dir::rewind()
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{
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MBED_ASSERT(_fs);
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return _fs->dir_rewind(_dir);
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}
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size_t Dir::size()
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{
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MBED_ASSERT(_fs);
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return _fs->dir_size(_dir);
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}
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