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