/* $NetBSD: epoll_sub.c,v 1.4 2016/01/08 21:35:40 christos Exp $ */ /* * 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 "evconfig-private.h" #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 } |