/* 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, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #ifndef _GL_POLL_H #define _GL_POLL_H /* 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 */