1 /*
2  * Copyright (C) 2016 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef BERBERIS_BASE_SCOPED_ERRNO_H_
18 #define BERBERIS_BASE_SCOPED_ERRNO_H_
19 
20 #include <cerrno>
21 
22 #include "berberis/base/macros.h"
23 
24 namespace berberis {
25 
26 // Saves errno and restores after function exit.
27 class ScopedErrno {
28  public:
ScopedErrno()29   ScopedErrno() : errno_(errno) {}
~ScopedErrno()30   ~ScopedErrno() { errno = errno_; }
31 
32  private:
33   int errno_;
34 
35   DISALLOW_COPY_AND_ASSIGN(ScopedErrno);
36 };
37 
38 }  // namespace berberis
39 
40 #endif  // BERBERIS_BASE_SCOPED_ERRNO_H_
41