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34 lines
740 B
34 lines
740 B
// Copyright (c) 2013 The Chromium Authors. All rights reserved. |
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// Use of this source code is governed by a BSD-style license that can be |
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// found in the LICENSE file. |
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#ifndef BASE_SCOPED_CLEAR_ERRNO_H_ |
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#define BASE_SCOPED_CLEAR_ERRNO_H_ |
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#include <errno.h> |
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#include "base/macros.h" |
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namespace base { |
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// Simple scoper that saves the current value of errno, resets it to 0, and on |
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// destruction puts the old value back. |
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class ScopedClearErrno { |
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public: |
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ScopedClearErrno() : old_errno_(errno) { |
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errno = 0; |
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} |
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~ScopedClearErrno() { |
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if (errno == 0) |
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errno = old_errno_; |
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} |
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private: |
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const int old_errno_; |
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DISALLOW_COPY_AND_ASSIGN(ScopedClearErrno); |
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}; |
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} // namespace base |
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#endif // BASE_SCOPED_CLEAR_ERRNO_H_
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