mbed library sources. Supersedes mbed-src.

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Show/hide line numbers FileHandle.cpp Source File

FileHandle.cpp

00001 /* mbed Microcontroller Library
00002  * Copyright (c) 2006-2016 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 "FileHandle.h"
00018 #include "platform/mbed_retarget.h"
00019 #include "platform/mbed_critical.h"
00020 
00021 namespace mbed {
00022 
00023 off_t FileHandle::size()
00024 {
00025     /* remember our current position */
00026     off_t off = seek(0, SEEK_CUR);
00027     if (off < 0) {
00028         return off;
00029     }
00030     /* seek to the end to get the file length */
00031     off_t size = seek(0, SEEK_END);
00032     /* return to our old position */
00033     seek(off, SEEK_SET);
00034     return size;
00035 }
00036 
00037 } // namespace mbed