/*

 * Copyright 2003-2009 Niels Provos <provos@citi.umich.edu>

 * Copyright 2009-2012 Niels Provos and Nick Mathewson

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. 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.

 * 3. The name of the author may not be used to endorse or promote products

 *    derived from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.

 */

#include <stdint.h>

#include <sys/param.h>

#include <sys/types.h>

#include <sys/syscall.h>

#include <sys/epoll.h>

#include <unistd.h>

#include <errno.h>

int

epoll_create(int size)

{

#if !defined(__NR_epoll_create) && defined(__NR_epoll_create1)

	if (size <= 0) {

		errno = EINVAL;

		return -1;

	}

	return (syscall(__NR_epoll_create1, 0));

#else

	return (syscall(__NR_epoll_create, size));

#endif

}

int

epoll_ctl(int epfd, int op, int fd, struct epoll_event *event)

{

	return (syscall(__NR_epoll_ctl, epfd, op, fd, event));

}

int

epoll_wait(int epfd, struct epoll_event *events, int maxevents, int timeout)

{

#if !defined(__NR_epoll_wait) && defined(__NR_epoll_pwait)

	return (syscall(__NR_epoll_pwait, epfd, events, maxevents, timeout, NULL, 0));

#else

	return (syscall(__NR_epoll_wait, epfd, events, maxevents, timeout));

#endif

}