2 * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37 const struct timespec timeout = { .tv_sec = 42, .tv_nsec = 999999999 };
38 struct pollfd fds[] = {
39 { .fd = 0, .events = POLLIN | POLLPRI | POLLRDNORM | POLLRDBAND },
40 { .fd = 1, .events = POLLOUT | POLLWRNORM | POLLWRBAND },
41 { .fd = 3, .events = POLLIN | POLLPRI },
42 { .fd = 4, .events = POLLOUT }
47 sigaddset(&mask, SIGUSR2);
48 sigaddset(&mask, SIGCHLD);
50 int rc = ppoll(fds, sizeof(fds) / sizeof(*fds), &timeout, &mask);
52 perror_msg_and_skip("ppoll");
59 const struct timespec timeout = { .tv_sec = 0, .tv_nsec = 999 };
60 struct pollfd fds[] = {
61 { .fd = 1, .events = POLLIN | POLLPRI | POLLRDNORM | POLLRDBAND },
62 { .fd = 0, .events = POLLOUT | POLLWRNORM | POLLWRBAND }
67 sigdelset(&mask, SIGHUP);
68 sigdelset(&mask, SIGKILL);
69 sigdelset(&mask, SIGSTOP);
71 int rc = ppoll(fds, sizeof(fds) / sizeof(*fds), &timeout, &mask);
73 perror_msg_and_skip("ppoll");
86 if (pipe(fds) || pipe(fds))
87 perror_msg_and_fail("pipe");
92 assert(ppoll(NULL, 42, NULL, NULL) < 0);