takashi kadono
/
Nucleo446_SSD1331
Color Oled(SSD1331) connect to STMicroelectronics Nucleo-F466
mbed-os/platform/FileHandle.cpp@0:8fdf9a60065b, 2018-10-10 (annotated)
- Committer:
- kadonotakashi
- Date:
- Wed Oct 10 00:33:53 2018 +0000
- Revision:
- 0:8fdf9a60065b
how to make mbed librry
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
kadonotakashi | 0:8fdf9a60065b | 1 | /* mbed Microcontroller Library |
kadonotakashi | 0:8fdf9a60065b | 2 | * Copyright (c) 2006-2016 ARM Limited |
kadonotakashi | 0:8fdf9a60065b | 3 | * |
kadonotakashi | 0:8fdf9a60065b | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
kadonotakashi | 0:8fdf9a60065b | 5 | * you may not use this file except in compliance with the License. |
kadonotakashi | 0:8fdf9a60065b | 6 | * You may obtain a copy of the License at |
kadonotakashi | 0:8fdf9a60065b | 7 | * |
kadonotakashi | 0:8fdf9a60065b | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
kadonotakashi | 0:8fdf9a60065b | 9 | * |
kadonotakashi | 0:8fdf9a60065b | 10 | * Unless required by applicable law or agreed to in writing, software |
kadonotakashi | 0:8fdf9a60065b | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
kadonotakashi | 0:8fdf9a60065b | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
kadonotakashi | 0:8fdf9a60065b | 13 | * See the License for the specific language governing permissions and |
kadonotakashi | 0:8fdf9a60065b | 14 | * limitations under the License. |
kadonotakashi | 0:8fdf9a60065b | 15 | */ |
kadonotakashi | 0:8fdf9a60065b | 16 | #include "FileHandle.h" |
kadonotakashi | 0:8fdf9a60065b | 17 | #include "platform/mbed_retarget.h" |
kadonotakashi | 0:8fdf9a60065b | 18 | #include "platform/mbed_critical.h" |
kadonotakashi | 0:8fdf9a60065b | 19 | |
kadonotakashi | 0:8fdf9a60065b | 20 | namespace mbed { |
kadonotakashi | 0:8fdf9a60065b | 21 | |
kadonotakashi | 0:8fdf9a60065b | 22 | off_t FileHandle::size() |
kadonotakashi | 0:8fdf9a60065b | 23 | { |
kadonotakashi | 0:8fdf9a60065b | 24 | /* remember our current position */ |
kadonotakashi | 0:8fdf9a60065b | 25 | off_t off = seek(0, SEEK_CUR); |
kadonotakashi | 0:8fdf9a60065b | 26 | if (off < 0) { |
kadonotakashi | 0:8fdf9a60065b | 27 | return off; |
kadonotakashi | 0:8fdf9a60065b | 28 | } |
kadonotakashi | 0:8fdf9a60065b | 29 | /* seek to the end to get the file length */ |
kadonotakashi | 0:8fdf9a60065b | 30 | off_t size = seek(0, SEEK_END); |
kadonotakashi | 0:8fdf9a60065b | 31 | /* return to our old position */ |
kadonotakashi | 0:8fdf9a60065b | 32 | seek(off, SEEK_SET); |
kadonotakashi | 0:8fdf9a60065b | 33 | return size; |
kadonotakashi | 0:8fdf9a60065b | 34 | } |
kadonotakashi | 0:8fdf9a60065b | 35 | |
kadonotakashi | 0:8fdf9a60065b | 36 | } // namespace mbed |