// Copyright 2018 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 MINI_CHROMIUM_BASE_SCOPED_CLEAR_LAST_ERROR_H_
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#define MINI_CHROMIUM_BASE_SCOPED_CLEAR_LAST_ERROR_H_
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#include <errno.h>
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#include "base/macros.h"
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#include "build/build_config.h"
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namespace base {
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class ScopedClearLastErrorBase {
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public:
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ScopedClearLastErrorBase() : last_errno_(errno) { errno = 0; }
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~ScopedClearLastErrorBase() { errno = last_errno_; }
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private:
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const int last_errno_;
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DISALLOW_COPY_AND_ASSIGN(ScopedClearLastErrorBase);
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};
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#if defined(OS_WIN)
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class ScopedClearLastError : public ScopedClearLastErrorBase {
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public:
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ScopedClearLastError();
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~ScopedClearLastError();
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private:
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const unsigned long last_system_error_;
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DISALLOW_COPY_AND_ASSIGN(ScopedClearLastError);
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};
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#elif defined(OS_POSIX) || defined(OS_FUCHSIA)
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using ScopedClearLastError = ScopedClearLastErrorBase;
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#endif // defined(OS_WIN)
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} // namespace base
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#endif // MINI_CHROMIUM_BASE_SCOPED_CLEAR_LAST_ERROR_H_
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