/*
 * Copyright (c) 2015, Stefan Lankes, RWTH Aachen University
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *    * Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 *    * Redistributions in binary form must reproduce the above copyright
 *      notice, this list of conditions and the following disclaimer in the
 *      documentation and/or other materials provided with the distribution.
 *    * Neither the name of the University nor the names of its contributors
 *      may be used to endorse or promote products derived from this
 *      software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef __SYS_POLL_H__
#define __SYS_POLL_H__

#include <stdlib.h>

#ifdef __cplusplus
extern "C" {
#endif

/* These are specified by iBCS2 */
#define POLLIN          0x0001
#define POLLPRI         0x0002
#define POLLOUT         0x0004
#define POLLERR         0x0008
#define POLLHUP         0x0010
#define POLLNVAL        0x0020

/* The rest seem to be more-or-less nonstandard. Check them! */
#define POLLRDNORM      0x0040
#define POLLRDBAND      0x0080
#ifndef POLLWRNORM
#define POLLWRNORM      0x0100
#endif
#ifndef POLLWRBAND
#define POLLWRBAND      0x0200
#endif
#ifndef POLLMSG
#define POLLMSG         0x0400
#endif
#ifndef POLLREMOVE
#define POLLREMOVE      0x1000
#endif
#ifndef POLLRDHUP
#define POLLRDHUP       0x2000
#endif

#define POLLFREE        0x4000  /* currently only for epoll */

#define POLL_BUSY_LOOP  0x8000

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

typedef unsigned long int nfds_t;

int poll(struct pollfd *fds, nfds_t nfds, int timeout);

#ifdef __cplusplus
}
#endif

#endif