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. */
26 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
28 /* The definition of _GL_WARN_ON_USE is copied here. */
31 /* fake a poll(2) environment */
32 #define POLLIN 0x0001 /* any readable data available */
33 #define POLLPRI 0x0002 /* OOB/Urgent readable data */
34 #define POLLOUT 0x0004 /* file descriptor is writeable */
35 #define POLLERR 0x0008 /* some poll error occurred */
36 #define POLLHUP 0x0010 /* file descriptor was "hung up" */
37 #define POLLNVAL 0x0020 /* requested events "invalid" */
38 #define POLLRDNORM 0x0040
39 #define POLLRDBAND 0x0080
40 #define POLLWRNORM 0x0100
41 #define POLLWRBAND 0x0200
45 int fd; /* which file descriptor to poll */
46 short events; /* events we are interested in */
47 short revents; /* events found on return */
50 typedef unsigned long nfds_t;
54 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
56 # define poll rpl_poll
58 _GL_FUNCDECL_RPL (poll, int, (struct pollfd *pfd, nfds_t nfd, int timeout));
59 _GL_CXXALIAS_RPL (poll, int, (struct pollfd *pfd, nfds_t nfd, int timeout));
62 _GL_FUNCDECL_SYS (poll, int, (struct pollfd *pfd, nfds_t nfd, int timeout));
64 _GL_CXXALIAS_SYS (poll, int, (struct pollfd *pfd, nfds_t nfd, int timeout));
66 _GL_CXXALIASWARN (poll);
67 #elif defined GNULIB_POSIXCHECK
69 # if HAVE_RAW_DECL_POLL
70 _GL_WARN_ON_USE (poll, "poll is unportable - "
71 "use gnulib module poll for portability");
75 /* Define INFTIM only if doing so conforms to POSIX. */
76 #if !defined (_POSIX_C_SOURCE) && !defined (_XOPEN_SOURCE)
81 #endif /* _GL_POLL_H */