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/*
* Copyright (C) 2020 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 "android-base/macros.h"
namespace android {
namespace base {
class ErrnoRestorer {
public:
ErrnoRestorer() : saved_errno_(errno) {}
~ErrnoRestorer() { errno = saved_errno_; }
// Allow this object to be used as part of && operation.
explicit operator bool() const { return true; }
private:
const int saved_errno_;
DISALLOW_COPY_AND_ASSIGN(ErrnoRestorer);
};
} // namespace base
} // namespace android
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