1/*	$OpenBSD: w_ppoll.c,v 1.1 2016/05/07 19:05:22 guenther Exp $ */
2/*
3 * Copyright (c) 2015 Philip Guenther <guenther@openbsd.org>
4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18#include <poll.h>
19#include <signal.h>
20#include "cancel.h"
21
22int
23ppoll(struct pollfd *fds, nfds_t nfds,
24    const struct timespec *timeout, const sigset_t *sigmask)
25{
26	sigset_t set;
27	int ret;
28
29	if (sigmask != NULL && sigismember(sigmask, SIGTHR)) {
30		set = *sigmask;
31		sigdelset(&set, SIGTHR);
32		sigmask = &set;
33	}
34
35	ENTER_CANCEL_POINT(1);
36	ret = HIDDEN(ppoll)(fds, nfds, timeout, sigmask);
37	LEAVE_CANCEL_POINT(ret == -1);
38
39	return (ret);
40}
41DEF_CANCEL(ppoll);
42