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
22 int
ppoll(struct pollfd * fds,nfds_t nfds,const struct timespec * timeout,const sigset_t * sigmask)23 ppoll(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 }
41 DEF_CANCEL(ppoll);
42