xref: /xsrc/external/mit/xorg-server/dist/include/xserver_poll.h

/*
 * Copyright © 2016 Keith Packard
 *
 * Permission to use, copy, modify, distribute, and sell this software and its
 * documentation for any purpose is hereby granted without fee, provided that
 * the above copyright notice appear in all copies and that both that copyright
 * notice and this permission notice appear in supporting documentation, and
 * that the name of the copyright holders not be used in advertising or
 * publicity pertaining to distribution of the software without specific,
 * written prior permission.  The copyright holders make no representations
 * about the suitability of this software for any purpose.  It is provided "as
 * is" without express or implied warranty.
 *
 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
 * OF THIS SOFTWARE.
 */

#ifndef _XSERVER_POLL_H_
#define _XSERVER_POLL_H_

#ifndef _DIX_CONFIG_H_
#error must include dix-config.h to use xserver_poll.h
#endif

#ifdef HAVE_POLL
#include <poll.h>
#define xserver_poll(fds, nfds, timeout) poll(fds, nfds, timeout)
#else

#define POLLIN		0x01
#define POLLPRI		0x02
#define POLLOUT		0x04
#define POLLERR		0x08
#define POLLHUP		0x10
#define POLLNVAL	0x20

struct pollfd
{
    int     fd;
    short   events;
    short   revents;
};

typedef unsigned long nfds_t;

int xserver_poll (struct pollfd *pArray, nfds_t n_fds, int timeout);

#endif

#endif /* _XSERVER_POLL_H_ */