1/*	$OpenBSD: sigwait.c,v 1.1 2019/01/12 00:16:03 jca Exp $ */
2/*
3 * Copyright (c) 2005 Ted Unangst <tedu@openbsd.org>
4 * All Rights Reserved.
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18/*
19 * signals
20 */
21
22#include <signal.h>
23#include <errno.h>
24
25#include <pthread.h>
26
27#include "thread/rthread.h"
28#include "cancel.h"		/* in libc/include */
29
30int
31sigwait(const sigset_t *set, int *sig)
32{
33	sigset_t s = *set;
34	int ret;
35
36	sigdelset(&s, SIGTHR);
37	do {
38		ENTER_CANCEL_POINT(1);
39		ret = __thrsigdivert(s, NULL, NULL);
40		LEAVE_CANCEL_POINT(ret == -1);
41	} while (ret == -1 && errno == EINTR);
42	if (ret == -1)
43		return (errno);
44	*sig = ret;
45	return (0);
46}
47
48#if 0		/* need kernel to fill in more siginfo_t bits first */
49int
50sigwaitinfo(const sigset_t *set, siginfo_t *info)
51{
52	sigset_t s = *set;
53	int ret;
54
55	sigdelset(&s, SIGTHR);
56	ENTER_CANCEL_POINT(1);
57	ret = __thrsigdivert(s, info, NULL);
58	LEAVE_CANCEL_POINT(ret == -1);
59	return (ret);
60}
61
62int
63sigtimedwait(const sigset_t *set, siginfo_t *info,
64    const struct timespec *timeout)
65{
66	sigset_t s = *set;
67	int ret;
68
69	sigdelset(&s, SIGTHR);
70	ENTER_CANCEL_POINT(1);
71	ret = __thrsigdivert(s, info, timeout);
72	LEAVE_CANCEL_POINT(ret == -1);
73	return (ret);
74}
75#endif
76