hmz007
36ed224bac
Signed-off-by: hmz007 <hmz007@gmail.com> Change-Id: Ib87fdbe7a0be7dc961af3500fe9ea4589a127f9f
43 lines
1.1 KiB
C++
43 lines
1.1 KiB
C++
/*
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include "errno.h"
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#include "android-base/macros.h"
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namespace android {
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namespace base {
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class ErrnoRestorer {
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public:
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ErrnoRestorer() : saved_errno_(errno) {}
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~ErrnoRestorer() { errno = saved_errno_; }
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// Allow this object to be used as part of && operation.
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explicit operator bool() const { return true; }
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private:
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const int saved_errno_;
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DISALLOW_COPY_AND_ASSIGN(ErrnoRestorer);
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};
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} // namespace base
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} // namespace android
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