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1 // Copyright (c) 2012 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_ | |
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