platform_bionic/libc/private/ErrnoRestorer.h
Josh Gao 4956c372cf Move bionic_macros.h from private to platform.
Test: treehugger
Change-Id: Ie473914f4c8924c7240b3ac22093a9daf42fc948
2020-01-02 14:09:50 -08:00

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983 B
C++

/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <errno.h>
#include "platform/bionic/macros.h"
class ErrnoRestorer {
public:
explicit ErrnoRestorer() : saved_errno_(errno) {
}
~ErrnoRestorer() {
errno = saved_errno_;
}
void override(int new_errno) {
saved_errno_ = new_errno;
}
private:
int saved_errno_;
BIONIC_DISALLOW_COPY_AND_ASSIGN(ErrnoRestorer);
};