1/*
2 * Copyright (C) 2013 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 ERRNO_RESTORER_H
18#define ERRNO_RESTORER_H
19
20#include <errno.h>
21
22#include "bionic_macros.h"
23
24class ErrnoRestorer {
25 public:
26  explicit ErrnoRestorer() : saved_errno_(errno) {
27  }
28
29  ~ErrnoRestorer() {
30    errno = saved_errno_;
31  }
32
33  void override(int new_errno) {
34    saved_errno_ = new_errno;
35  }
36
37 private:
38  int saved_errno_;
39
40  DISALLOW_COPY_AND_ASSIGN(ErrnoRestorer);
41};
42
43#endif // ERRNO_RESTORER_H
44