FileHandle.cpp

00001 /* mbed Microcontroller Library
00002  * Copyright (c) 2006-2016 ARM Limited
00003  *
00004  * Licensed under the Apache License, Version 2.0 (the "License");
00005  * you may not use this file except in compliance with the License.
00006  * You may obtain a copy of the License at
00007  *
00008  *     http://www.apache.org/licenses/LICENSE-2.0
00009  *
00010  * Unless required by applicable law or agreed to in writing, software
00011  * distributed under the License is distributed on an "AS IS" BASIS,
00012  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  * See the License for the specific language governing permissions and
00014  * limitations under the License.
00015  */
00016 #include "FileHandle.h"
00017 #include "platform/mbed_retarget.h"
00018 #include "platform/mbed_critical.h"
00019 
00020 namespace mbed {
00021 
00022 off_t FileHandle::size()
00023 {
00024     /* remember our current position */
00025     off_t off = seek(0, SEEK_CUR);
00026     if (off < 0) {
00027         return off;
00028     }
00029     /* seek to the end to get the file length */
00030     off_t size = seek(0, SEEK_END);
00031     /* return to our old position */
00032     seek(off, SEEK_SET);
00033     return size;
00034 }
00035 
00036 std::FILE *fdopen(FileHandle *fh, const char *mode)
00037 {
00038     return mbed_fdopen(fh, mode);
00039 }
00040 
00041 } // namespace mbed