mirror of https://github.com/ARMmbed/mbed-os.git
113 lines
2.0 KiB
C++
113 lines
2.0 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 "File.h"
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#include "mbed.h"
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#include <errno.h>
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File::File()
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: _fs(0), _file(0)
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{
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}
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File::File(FileSystem *fs, const char *path, int flags)
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: _fs(0), _file(0)
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{
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open(fs, path, flags);
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}
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File::~File()
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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 File::open(FileSystem *fs, const char *path, int flags)
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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->file_open(&_file, path, flags);
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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 File::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->file_close(_file);
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_fs = 0;
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return err;
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}
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ssize_t File::read(void *buffer, size_t len)
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{
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MBED_ASSERT(_fs);
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return _fs->file_read(_file, buffer, len);
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}
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ssize_t File::write(const void *buffer, size_t len)
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{
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MBED_ASSERT(_fs);
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return _fs->file_write(_file, buffer, len);
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}
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int File::sync()
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{
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MBED_ASSERT(_fs);
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return _fs->file_sync(_file);
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}
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int File::isatty()
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{
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MBED_ASSERT(_fs);
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return _fs->file_isatty(_file);
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}
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off_t File::seek(off_t offset, int whence)
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{
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MBED_ASSERT(_fs);
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return _fs->file_seek(_file, offset, whence);
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}
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off_t File::tell()
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{
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MBED_ASSERT(_fs);
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return _fs->file_tell(_file);
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}
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void File::rewind()
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{
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MBED_ASSERT(_fs);
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return _fs->file_rewind(_file);
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}
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off_t File::size()
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{
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MBED_ASSERT(_fs);
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return _fs->file_size(_file);
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}
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