xref: /freebsd/lib/libc/gen/kqueue1.c (revision 54579376c05e7a039cde5f424c641fa29348835f)
1*54579376SKonstantin Belousov /*-
2*54579376SKonstantin Belousov  * Copyright (c) 2023 The FreeBSD Foundation
3*54579376SKonstantin Belousov  *
4*54579376SKonstantin Belousov  * This software were developed by Konstantin Belousov <kib@FreeBSD.org>
5*54579376SKonstantin Belousov  * under sponsorship from the FreeBSD Foundation.
6*54579376SKonstantin Belousov  *
7*54579376SKonstantin Belousov  * Redistribution and use in source and binary forms, with or without
8*54579376SKonstantin Belousov  * modification, are permitted provided that the following conditions
9*54579376SKonstantin Belousov  * are met:
10*54579376SKonstantin Belousov  * 1. Redistributions of source code must retain the above copyright
11*54579376SKonstantin Belousov  *    notice, this list of conditions and the following disclaimer.
12*54579376SKonstantin Belousov  * 2. Redistributions in binary form must reproduce the above copyright
13*54579376SKonstantin Belousov  *    notice, this list of conditions and the following disclaimer in the
14*54579376SKonstantin Belousov  *    documentation and/or other materials provided with the distribution.
15*54579376SKonstantin Belousov  *
16*54579376SKonstantin Belousov  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17*54579376SKonstantin Belousov  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18*54579376SKonstantin Belousov  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19*54579376SKonstantin Belousov  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20*54579376SKonstantin Belousov  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21*54579376SKonstantin Belousov  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22*54579376SKonstantin Belousov  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23*54579376SKonstantin Belousov  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24*54579376SKonstantin Belousov  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25*54579376SKonstantin Belousov  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26*54579376SKonstantin Belousov  * SUCH DAMAGE.
27*54579376SKonstantin Belousov  */
28*54579376SKonstantin Belousov 
29*54579376SKonstantin Belousov #include <sys/param.h>
30*54579376SKonstantin Belousov #include <sys/event.h>
31*54579376SKonstantin Belousov #include <errno.h>
32*54579376SKonstantin Belousov #include <fcntl.h>
33*54579376SKonstantin Belousov 
34*54579376SKonstantin Belousov /*
35*54579376SKonstantin Belousov  * Provide some NetBSD compatibility.  They support a set of O_*
36*54579376SKonstantin Belousov  * flags, we only carry O_CLOEXEC, and accept but ignore O_NONBLOCK.
37*54579376SKonstantin Belousov  */
38*54579376SKonstantin Belousov int
kqueue1(int openflags)39*54579376SKonstantin Belousov kqueue1(int openflags)
40*54579376SKonstantin Belousov {
41*54579376SKonstantin Belousov 	u_int flags;
42*54579376SKonstantin Belousov 
43*54579376SKonstantin Belousov 	if ((openflags & ~(O_CLOEXEC | O_NONBLOCK)) != 0) {
44*54579376SKonstantin Belousov 		errno = EINVAL;
45*54579376SKonstantin Belousov 		return (-1);
46*54579376SKonstantin Belousov 	}
47*54579376SKonstantin Belousov 
48*54579376SKonstantin Belousov 	flags = 0;
49*54579376SKonstantin Belousov 	if ((openflags & O_CLOEXEC) != 0)
50*54579376SKonstantin Belousov 		flags |= KQUEUE_CLOEXEC;
51*54579376SKonstantin Belousov 	return (kqueuex(flags));
52*54579376SKonstantin Belousov }
53