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mbed-os/features/filesystem/File.cpp@1:b36bbc1c6d27, 2020-04-11 (annotated)

Committer:
demayer
Date:
Sat Apr 11 08:15:48 2020 +0000
Revision:
1:b36bbc1c6d27
Parent:
0:6bf0743ece18 
IMU-library in .h und .cpp file aufgeteilt

Who changed what in which revision?

UserRevisionLine numberNew contents of line
demayer 0:6bf0743ece18 1 /* mbed Microcontroller Library
demayer 0:6bf0743ece18 2 * Copyright (c) 2015 ARM Limited
demayer 0:6bf0743ece18 3 *
demayer 0:6bf0743ece18 4 * Licensed under the Apache License, Version 2.0 (the "License");
demayer 0:6bf0743ece18 5 * you may not use this file except in compliance with the License.
demayer 0:6bf0743ece18 6 * You may obtain a copy of the License at
demayer 0:6bf0743ece18 7 *
demayer 0:6bf0743ece18 8 * http://www.apache.org/licenses/LICENSE-2.0
demayer 0:6bf0743ece18 9 *
demayer 0:6bf0743ece18 10 * Unless required by applicable law or agreed to in writing, software
demayer 0:6bf0743ece18 11 * distributed under the License is distributed on an "AS IS" BASIS,
demayer 0:6bf0743ece18 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
demayer 0:6bf0743ece18 13 * See the License for the specific language governing permissions and
demayer 0:6bf0743ece18 14 * limitations under the License.
demayer 0:6bf0743ece18 15 */
demayer 0:6bf0743ece18 16
demayer 0:6bf0743ece18 17 #include "File.h"
demayer 0:6bf0743ece18 18 #include "mbed.h"
demayer 0:6bf0743ece18 19 #include <errno.h>
demayer 0:6bf0743ece18 20
demayer 0:6bf0743ece18 21
demayer 0:6bf0743ece18 22 File::File()
demayer 0:6bf0743ece18 23 : _fs(0), _file(0)
demayer 0:6bf0743ece18 24 {
demayer 0:6bf0743ece18 25 }
demayer 0:6bf0743ece18 26
demayer 0:6bf0743ece18 27 File::File(FileSystem *fs, const char *path, int flags)
demayer 0:6bf0743ece18 28 : _fs(0), _file(0)
demayer 0:6bf0743ece18 29 {
demayer 0:6bf0743ece18 30 open(fs, path, flags);
demayer 0:6bf0743ece18 31 }
demayer 0:6bf0743ece18 32
demayer 0:6bf0743ece18 33 File::~File()
demayer 0:6bf0743ece18 34 {
demayer 0:6bf0743ece18 35 if (_fs) {
demayer 0:6bf0743ece18 36 close();
demayer 0:6bf0743ece18 37 }
demayer 0:6bf0743ece18 38 }
demayer 0:6bf0743ece18 39
demayer 0:6bf0743ece18 40 int File::open(FileSystem *fs, const char *path, int flags)
demayer 0:6bf0743ece18 41 {
demayer 0:6bf0743ece18 42 if (_fs) {
demayer 0:6bf0743ece18 43 return -EINVAL;
demayer 0:6bf0743ece18 44 }
demayer 0:6bf0743ece18 45
demayer 0:6bf0743ece18 46 int err = fs->file_open(&_file, path, flags);
demayer 0:6bf0743ece18 47 if (!err) {
demayer 0:6bf0743ece18 48 _fs = fs;
demayer 0:6bf0743ece18 49 }
demayer 0:6bf0743ece18 50
demayer 0:6bf0743ece18 51 return err;
demayer 0:6bf0743ece18 52 }
demayer 0:6bf0743ece18 53
demayer 0:6bf0743ece18 54 int File::close()
demayer 0:6bf0743ece18 55 {
demayer 0:6bf0743ece18 56 if (!_fs) {
demayer 0:6bf0743ece18 57 return -EINVAL;
demayer 0:6bf0743ece18 58 }
demayer 0:6bf0743ece18 59
demayer 0:6bf0743ece18 60 int err = _fs->file_close(_file);
demayer 0:6bf0743ece18 61 _fs = 0;
demayer 0:6bf0743ece18 62 return err;
demayer 0:6bf0743ece18 63 }
demayer 0:6bf0743ece18 64
demayer 0:6bf0743ece18 65 ssize_t File::read(void *buffer, size_t len)
demayer 0:6bf0743ece18 66 {
demayer 0:6bf0743ece18 67 MBED_ASSERT(_fs);
demayer 0:6bf0743ece18 68 return _fs->file_read(_file, buffer, len);
demayer 0:6bf0743ece18 69 }
demayer 0:6bf0743ece18 70
demayer 0:6bf0743ece18 71 ssize_t File::write(const void *buffer, size_t len)
demayer 0:6bf0743ece18 72 {
demayer 0:6bf0743ece18 73 MBED_ASSERT(_fs);
demayer 0:6bf0743ece18 74 return _fs->file_write(_file, buffer, len);
demayer 0:6bf0743ece18 75 }
demayer 0:6bf0743ece18 76
demayer 0:6bf0743ece18 77 int File::sync()
demayer 0:6bf0743ece18 78 {
demayer 0:6bf0743ece18 79 MBED_ASSERT(_fs);
demayer 0:6bf0743ece18 80 return _fs->file_sync(_file);
demayer 0:6bf0743ece18 81 }
demayer 0:6bf0743ece18 82
demayer 0:6bf0743ece18 83 int File::isatty()
demayer 0:6bf0743ece18 84 {
demayer 0:6bf0743ece18 85 MBED_ASSERT(_fs);
demayer 0:6bf0743ece18 86 return _fs->file_isatty(_file);
demayer 0:6bf0743ece18 87 }
demayer 0:6bf0743ece18 88
demayer 0:6bf0743ece18 89 off_t File::seek(off_t offset, int whence)
demayer 0:6bf0743ece18 90 {
demayer 0:6bf0743ece18 91 MBED_ASSERT(_fs);
demayer 0:6bf0743ece18 92 return _fs->file_seek(_file, offset, whence);
demayer 0:6bf0743ece18 93 }
demayer 0:6bf0743ece18 94
demayer 0:6bf0743ece18 95 off_t File::tell()
demayer 0:6bf0743ece18 96 {
demayer 0:6bf0743ece18 97 MBED_ASSERT(_fs);
demayer 0:6bf0743ece18 98 return _fs->file_tell(_file);
demayer 0:6bf0743ece18 99 }
demayer 0:6bf0743ece18 100
demayer 0:6bf0743ece18 101 void File::rewind()
demayer 0:6bf0743ece18 102 {
demayer 0:6bf0743ece18 103 MBED_ASSERT(_fs);
demayer 0:6bf0743ece18 104 return _fs->file_rewind(_file);
demayer 0:6bf0743ece18 105 }
demayer 0:6bf0743ece18 106
demayer 0:6bf0743ece18 107 off_t File::size()
demayer 0:6bf0743ece18 108 {
demayer 0:6bf0743ece18 109 MBED_ASSERT(_fs);
demayer 0:6bf0743ece18 110 return _fs->file_size(_file);
demayer 0:6bf0743ece18 111 }
demayer 0:6bf0743ece18 112