1 /* Header for poll(2) emulation
2 Contributed by Paolo Bonzini.
4 Copyright 2001, 2002, 2003, 2007, 2009, 2010 Free Software Foundation, Inc.
6 This file is part of gnulib.
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)
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.
18 You should have received a copy of the GNU General Public License along
19 with this program; if not, write to the Free Software Foundation,
20 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
25 @PRAGMA_SYSTEM_HEADER@
29 /* The include_next requires a split double-inclusion guard. */
31 # @INCLUDE_NEXT@ @NEXT_POLL_H@
38 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
40 /* The definition of _GL_WARN_ON_USE is copied here. */
45 /* fake a poll(2) environment */
46 # define POLLIN 0x0001 /* any readable data available */
47 # define POLLPRI 0x0002 /* OOB/Urgent readable data */
48 # define POLLOUT 0x0004 /* file descriptor is writeable */
49 # define POLLERR 0x0008 /* some poll error occurred */
50 # define POLLHUP 0x0010 /* file descriptor was "hung up" */
51 # define POLLNVAL 0x0020 /* requested events "invalid" */
52 # define POLLRDNORM 0x0040
53 # define POLLRDBAND 0x0080
54 # define POLLWRNORM 0x0100
55 # define POLLWRBAND 0x0200
59 int fd; /* which file descriptor to poll */
60 short events; /* events we are interested in */
61 short revents; /* events found on return */
64 typedef unsigned long nfds_t;
66 /* Define INFTIM only if doing so conforms to POSIX. */
67 # if !defined (_POSIX_C_SOURCE) && !defined (_XOPEN_SOURCE)
76 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
78 # define poll rpl_poll
80 _GL_FUNCDECL_RPL (poll, int, (struct pollfd *pfd, nfds_t nfd, int timeout));
81 _GL_CXXALIAS_RPL (poll, int, (struct pollfd *pfd, nfds_t nfd, int timeout));
84 _GL_FUNCDECL_SYS (poll, int, (struct pollfd *pfd, nfds_t nfd, int timeout));
86 _GL_CXXALIAS_SYS (poll, int, (struct pollfd *pfd, nfds_t nfd, int timeout));
88 _GL_CXXALIASWARN (poll);
89 #elif defined GNULIB_POSIXCHECK
91 # if HAVE_RAW_DECL_POLL
92 _GL_WARN_ON_USE (poll, "poll is unportable - "
93 "use gnulib module poll for portability");
98 #endif /* _GL_POLL_H */
99 #endif /* _GL_POLL_H */