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1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef BASE_SCOPED_CLEAR_ERRNO_H_ | |
6 #define BASE_SCOPED_CLEAR_ERRNO_H_ | |
7 | |
8 #include <errno.h> | |
9 | |
10 #include "base/basictypes.h" | |
11 | |
12 // Simple scoper that saves the current value of errno, resets it to 0, and on | |
brettw
2013/05/02 18:30:18
Please put this file in the base namespace.
Yusuke Sato
2013/05/02 18:50:31
Done.
| |
13 // destruction puts the old value back. | |
14 class ScopedClearErrno { | |
15 public: | |
16 ScopedClearErrno() : old_errno_(errno) { | |
17 errno = 0; | |
18 } | |
19 ~ScopedClearErrno() { | |
20 if (errno == 0) | |
21 errno = old_errno_; | |
22 } | |
23 | |
24 private: | |
25 const int old_errno_; | |
26 | |
27 DISALLOW_COPY_AND_ASSIGN(ScopedClearErrno); | |
28 }; | |
29 | |
30 #endif // BASE_SCOPED_CLEAR_ERRNO_H_ | |
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