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