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comparison: ipc/chromium/src/base/eintr_wrapper.h
ipc/chromium/src/base/eintr_wrapper.h
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| 1 // Copyright (c) 2009 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 // This provides a wrapper around system calls which may be interrupted by a | |
| 6 // signal and return EINTR. See man 7 signal. | |
| 7 // | |
| 8 // On Windows, this wrapper macro does nothing. | |
| 9 | |
| 10 #ifndef BASE_EINTR_WRAPPER_H_ | |
| 11 #define BASE_EINTR_WRAPPER_H_ | |
| 12 | |
| 13 #include "build/build_config.h" | |
| 14 | |
| 15 #if defined(OS_POSIX) | |
| 16 | |
| 17 #include <errno.h> | |
| 18 | |
| 19 #define HANDLE_EINTR(x) ({ \ | |
| 20 typeof(x) __eintr_result__; \ | |
| 21 do { \ | |
| 22 __eintr_result__ = x; \ | |
| 23 } while (__eintr_result__ == -1 && errno == EINTR); \ | |
| 24 __eintr_result__;\ | |
| 25 }) | |
| 26 | |
| 27 #else | |
| 28 | |
| 29 #define HANDLE_EINTR(x) x | |
| 30 | |
| 31 #endif // OS_POSIX | |
| 32 | |
| 33 #endif // !BASE_EINTR_WRAPPER_H_ |
