| // Copyright 2018 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef MINI_CHROMIUM_BASE_SCOPED_CLEAR_LAST_ERROR_H_ |
| #define MINI_CHROMIUM_BASE_SCOPED_CLEAR_LAST_ERROR_H_ |
| |
| #include <errno.h> |
| |
| #include "base/macros.h" |
| #include "build/build_config.h" |
| |
| namespace base { |
| |
| class ScopedClearLastErrorBase { |
| public: |
| ScopedClearLastErrorBase() : last_errno_(errno) { errno = 0; } |
| ~ScopedClearLastErrorBase() { errno = last_errno_; } |
| |
| private: |
| const int last_errno_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ScopedClearLastErrorBase); |
| }; |
| |
| #if defined(OS_WIN) |
| |
| class ScopedClearLastError : public ScopedClearLastErrorBase { |
| public: |
| ScopedClearLastError(); |
| ~ScopedClearLastError(); |
| |
| private: |
| const unsigned long last_system_error_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ScopedClearLastError); |
| }; |
| |
| #elif defined(OS_POSIX) || defined(OS_FUCHSIA) |
| |
| using ScopedClearLastError = ScopedClearLastErrorBase; |
| |
| #endif // defined(OS_WIN) |
| |
| } // namespace base |
| |
| #endif // MINI_CHROMIUM_BASE_SCOPED_CLEAR_LAST_ERROR_H_ |