1 /* $NetBSD: epoll.c,v 1.1 2023/07/28 18:19:00 christos Exp $ */
2
3 /*-
4 * Copyright (c) 2023 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28 #include <sys/cdefs.h>
29 __RCSID("$NetBSD: epoll.c,v 1.1 2023/07/28 18:19:00 christos Exp $");
30
31 #include <sys/epoll.h>
32 #include <sys/sigtypes.h>
33 #include <sys/time.h>
34
35 #include <errno.h>
36 #include <stddef.h>
37
38 int
epoll_create(int size)39 epoll_create(int size)
40 {
41 if (size <= 0) {
42 errno = EINVAL;
43 return -1;
44 }
45
46 return epoll_create1(0);
47 }
48
49 int
epoll_wait(int epfd,struct epoll_event * events,int maxevents,int timeout)50 epoll_wait(int epfd, struct epoll_event *events, int maxevents, int timeout)
51 {
52 return epoll_pwait(epfd, events, maxevents, timeout, NULL);
53 }
54
55 int
epoll_pwait(int epfd,struct epoll_event * events,int maxevents,int timeout,const sigset_t * sigmask)56 epoll_pwait(int epfd, struct epoll_event *events, int maxevents, int timeout,
57 const sigset_t *sigmask)
58 {
59 struct timespec ts, *tsp;
60
61 if (timeout >= 0) {
62 ts.tv_sec = timeout / 1000;
63 ts.tv_nsec = (timeout % 1000) * 1000000;
64 tsp = &ts;
65 } else
66 tsp = NULL;
67
68 return epoll_pwait2(epfd, events, maxevents, tsp, sigmask);
69 }
70