FileHandle.cpp

00001 /* mbed Microcontroller Library
00002  * Copyright (c) 2006-2019 ARM Limited
00003  * SPDX-License-Identifier: Apache-2.0
00004  *
00005  * Licensed under the Apache License, Version 2.0 (the "License");
00006  * you may not use this file except in compliance with the License.
00007  * You may obtain a copy of the License at
00008  *
00009  *     http://www.apache.org/licenses/LICENSE-2.0
00010  *
00011  * Unless required by applicable law or agreed to in writing, software
00012  * distributed under the License is distributed on an "AS IS" BASIS,
00013  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00014  * See the License for the specific language governing permissions and
00015  * limitations under the License.
00016  */
00017 #include "platform/FileHandle.h"
00018 
00019 namespace mbed {
00020 
00021 off_t FileHandle::size()
00022 {
00023     /* remember our current position */
00024     off_t off = seek(0, SEEK_CUR);
00025     if (off < 0) {
00026         return off;
00027     }
00028     /* seek to the end to get the file length */
00029     off_t size = seek(0, SEEK_END);
00030     /* return to our old position */
00031     seek(off, SEEK_SET);
00032     return size;
00033 }
00034 
00035 } // namespace mbed