EL4121 Embedded System / mbed-os

mbed-os

Dependents:   cobaLCDJoyMotor_Thread odometry_omni_3roda_v3 odometry_omni_3roda_v1 odometry_omni_3roda_v2 ... more

platform/FileHandle.cpp@0:b74591d5ab33, 2017-12-11 (annotated)

Committer:
be_bryan
Date:
Mon Dec 11 17:54:04 2017 +0000
Revision:
0:b74591d5ab33
motor ++

Who changed what in which revision?

UserRevisionLine numberNew contents of line
be_bryan 0:b74591d5ab33 1 /* mbed Microcontroller Library
be_bryan 0:b74591d5ab33 2 * Copyright (c) 2006-2016 ARM Limited
be_bryan 0:b74591d5ab33 3 *
be_bryan 0:b74591d5ab33 4 * Licensed under the Apache License, Version 2.0 (the "License");
be_bryan 0:b74591d5ab33 5 * you may not use this file except in compliance with the License.
be_bryan 0:b74591d5ab33 6 * You may obtain a copy of the License at
be_bryan 0:b74591d5ab33 7 *
be_bryan 0:b74591d5ab33 8 * http://www.apache.org/licenses/LICENSE-2.0
be_bryan 0:b74591d5ab33 9 *
be_bryan 0:b74591d5ab33 10 * Unless required by applicable law or agreed to in writing, software
be_bryan 0:b74591d5ab33 11 * distributed under the License is distributed on an "AS IS" BASIS,
be_bryan 0:b74591d5ab33 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
be_bryan 0:b74591d5ab33 13 * See the License for the specific language governing permissions and
be_bryan 0:b74591d5ab33 14 * limitations under the License.
be_bryan 0:b74591d5ab33 15 */
be_bryan 0:b74591d5ab33 16 #include "FileHandle.h"
be_bryan 0:b74591d5ab33 17 #include "platform/mbed_retarget.h"
be_bryan 0:b74591d5ab33 18 #include "platform/mbed_critical.h"
be_bryan 0:b74591d5ab33 19
be_bryan 0:b74591d5ab33 20 namespace mbed {
be_bryan 0:b74591d5ab33 21
be_bryan 0:b74591d5ab33 22 off_t FileHandle::size()
be_bryan 0:b74591d5ab33 23 {
be_bryan 0:b74591d5ab33 24 /* remember our current position */
be_bryan 0:b74591d5ab33 25 off_t off = seek(0, SEEK_CUR);
be_bryan 0:b74591d5ab33 26 if (off < 0) {
be_bryan 0:b74591d5ab33 27 return off;
be_bryan 0:b74591d5ab33 28 }
be_bryan 0:b74591d5ab33 29 /* seek to the end to get the file length */
be_bryan 0:b74591d5ab33 30 off_t size = seek(0, SEEK_END);
be_bryan 0:b74591d5ab33 31 /* return to our old position */
be_bryan 0:b74591d5ab33 32 seek(off, SEEK_SET);
be_bryan 0:b74591d5ab33 33 return size;
be_bryan 0:b74591d5ab33 34 }
be_bryan 0:b74591d5ab33 35
be_bryan 0:b74591d5ab33 36 std::FILE *fdopen(FileHandle *fh, const char *mode)
be_bryan 0:b74591d5ab33 37 {
be_bryan 0:b74591d5ab33 38 return mbed_fdopen(fh, mode);
be_bryan 0:b74591d5ab33 39 }
be_bryan 0:b74591d5ab33 40
be_bryan 0:b74591d5ab33 41 } // namespace mbed