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/* Header for poll(2) emulation
Contributed by Paolo Bonzini.
Copyright 2001, 2002, 2003, 2007, 2009, 2010 Free Software Foundation, Inc.
This file is part of gnulib.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, see <http://www.gnu.org/licenses/>. */
#ifndef _GL_POLL_H
#define _GL_POLL_H
#if defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x600
/* Vista has its own, socket-only poll() */
#undef POLLIN
#undef POLLPRI
#undef POLLOUT
#undef POLLERR
#undef POLLHUP
#undef POLLNVAL
#undef POLLRDNORM
#undef POLLRDBAND
#undef POLLWRNORM
#undef POLLWRBAND
#define pollfd compat_pollfd
#endif
/* fake a poll(2) environment */
#define POLLIN 0x0001 /* any readable data available */
#define POLLPRI 0x0002 /* OOB/Urgent readable data */
#define POLLOUT 0x0004 /* file descriptor is writeable */
#define POLLERR 0x0008 /* some poll error occurred */
#define POLLHUP 0x0010 /* file descriptor was "hung up" */
#define POLLNVAL 0x0020 /* requested events "invalid" */
#define POLLRDNORM 0x0040
#define POLLRDBAND 0x0080
#define POLLWRNORM 0x0100
#define POLLWRBAND 0x0200
struct pollfd
{
int fd; /* which file descriptor to poll */
short events; /* events we are interested in */
short revents; /* events found on return */
};
typedef unsigned long nfds_t;
extern int poll (struct pollfd *pfd, nfds_t nfd, int timeout);
/* Define INFTIM only if doing so conforms to POSIX. */
#if !defined (_POSIX_C_SOURCE) && !defined (_XOPEN_SOURCE)
#define INFTIM (-1)
#endif
#endif /* _GL_POLL_H */
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