Mercurial > gnulib
annotate lib/poll.in.h @ 40186:8964917f9574
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| author | Karl Berry <karl@freefriends.org> |
|---|---|
| date | Mon, 18 Feb 2019 08:02:49 -0800 |
| parents | b06060465f09 |
| children |
| rev | line source |
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| 9257 | 1 /* Header for poll(2) emulation |
| 2 Contributed by Paolo Bonzini. | |
| 3 | |
|
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4 Copyright 2001-2003, 2007, 2009-2019 Free Software Foundation, Inc. |
| 9257 | 5 |
| 6 This file is part of gnulib. | |
| 7 | |
| 8 This program is free software; you can redistribute it and/or modify | |
| 9 it under the terms of the GNU General Public License as published by | |
| 10 the Free Software Foundation; either version 2, or (at your option) | |
| 11 any later version. | |
| 12 | |
| 13 This program is distributed in the hope that it will be useful, | |
| 14 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 16 GNU General Public License for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License along | |
| 19190 | 19 with this program; if not, see <https://www.gnu.org/licenses/>. */ |
| 9257 | 20 |
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21 #ifndef _@GUARD_PREFIX@_POLL_H |
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22 |
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23 #if __GNUC__ >= 3 |
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24 @PRAGMA_SYSTEM_HEADER@ |
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25 #endif |
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26 @PRAGMA_COLUMNS@ |
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27 |
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28 /* The include_next requires a split double-inclusion guard. */ |
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29 #if @HAVE_POLL_H@ |
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30 # @INCLUDE_NEXT@ @NEXT_POLL_H@ |
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31 #endif |
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32 |
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33 #ifndef _@GUARD_PREFIX@_POLL_H |
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34 #define _@GUARD_PREFIX@_POLL_H |
| 9257 | 35 |
| 13736 | 36 |
| 37 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ | |
| 38 | |
| 39 /* The definition of _GL_WARN_ON_USE is copied here. */ | |
| 40 | |
| 41 | |
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42 #if !@HAVE_POLL_H@ |
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43 |
| 9257 | 44 /* fake a poll(2) environment */ |
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45 # define POLLIN 0x0001 /* any readable data available */ |
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46 # define POLLPRI 0x0002 /* OOB/Urgent readable data */ |
| 16358 | 47 # define POLLOUT 0x0004 /* file descriptor is writable */ |
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48 # define POLLERR 0x0008 /* some poll error occurred */ |
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49 # define POLLHUP 0x0010 /* file descriptor was "hung up" */ |
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50 # define POLLNVAL 0x0020 /* requested events "invalid" */ |
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51 # define POLLRDNORM 0x0040 |
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52 # define POLLRDBAND 0x0080 |
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53 # define POLLWRNORM 0x0100 |
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54 # define POLLWRBAND 0x0200 |
| 9257 | 55 |
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56 # if !GNULIB_defined_poll_types |
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57 |
| 9257 | 58 struct pollfd |
| 59 { | |
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60 int fd; /* which file descriptor to poll */ |
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61 short events; /* events we are interested in */ |
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62 short revents; /* events found on return */ |
| 9257 | 63 }; |
| 64 | |
| 65 typedef unsigned long nfds_t; | |
| 66 | |
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67 # define GNULIB_defined_poll_types 1 |
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68 # endif |
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69 |
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70 /* Define INFTIM only if doing so conforms to POSIX. */ |
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71 # if !defined (_POSIX_C_SOURCE) && !defined (_XOPEN_SOURCE) |
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72 # define INFTIM (-1) |
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73 # endif |
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74 |
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75 #endif |
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76 |
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77 |
| 13736 | 78 #if @GNULIB_POLL@ |
| 79 # if @REPLACE_POLL@ | |
| 80 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
| 81 # undef poll | |
| 82 # define poll rpl_poll | |
| 83 # endif | |
| 84 _GL_FUNCDECL_RPL (poll, int, (struct pollfd *pfd, nfds_t nfd, int timeout)); | |
| 85 _GL_CXXALIAS_RPL (poll, int, (struct pollfd *pfd, nfds_t nfd, int timeout)); | |
| 86 # else | |
| 87 # if !@HAVE_POLL@ | |
| 88 _GL_FUNCDECL_SYS (poll, int, (struct pollfd *pfd, nfds_t nfd, int timeout)); | |
| 89 # endif | |
| 90 _GL_CXXALIAS_SYS (poll, int, (struct pollfd *pfd, nfds_t nfd, int timeout)); | |
| 91 # endif | |
| 92 _GL_CXXALIASWARN (poll); | |
| 93 #elif defined GNULIB_POSIXCHECK | |
| 94 # undef poll | |
| 95 # if HAVE_RAW_DECL_POLL | |
| 96 _GL_WARN_ON_USE (poll, "poll is unportable - " | |
| 97 "use gnulib module poll for portability"); | |
| 98 # endif | |
| 99 #endif | |
| 9257 | 100 |
| 13736 | 101 |
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102 #endif /* _@GUARD_PREFIX@_POLL_H */ |
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103 #endif /* _@GUARD_PREFIX@_POLL_H */ |