diff options
Diffstat (limited to 'contrib/netbsd-tests/kernel/kqueue/t_sig.c')
-rw-r--r-- | contrib/netbsd-tests/kernel/kqueue/t_sig.c | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/kernel/kqueue/t_sig.c b/contrib/netbsd-tests/kernel/kqueue/t_sig.c new file mode 100644 index 0000000..4fc0758 --- /dev/null +++ b/contrib/netbsd-tests/kernel/kqueue/t_sig.c @@ -0,0 +1,133 @@ +/* $NetBSD: t_sig.c,v 1.2 2010/11/03 16:10:20 christos Exp $ */ + +/*- + * Copyright (c) 2002, 2008 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Luke Mewburn and Jaromir Dolecek. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__COPYRIGHT("@(#) Copyright (c) 2008\ + The NetBSD Foundation, inc. All rights reserved."); +__RCSID("$NetBSD: t_sig.c,v 1.2 2010/11/03 16:10:20 christos Exp $"); + +#include <sys/event.h> +#include <sys/ioctl.h> +#include <sys/param.h> +#include <sys/time.h> +#include <sys/wait.h> + +#include <inttypes.h> +#include <signal.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +#include <atf-c.h> + +#include "../../h_macros.h" + +#define NSIGNALS 5 + +ATF_TC(sig); +ATF_TC_HEAD(sig, tc) +{ + atf_tc_set_md_var(tc, "descr", "Checks EVFILT_SIGNAL"); +} +ATF_TC_BODY(sig, tc) +{ + struct timespec timeout; + struct kfilter_mapping km; + struct kevent event[1]; + char namebuf[32]; + pid_t pid, child; + int kq, n, num, status; + + pid = getpid(); + (void)printf("my pid: %d\n", pid); + + /* fork a child to send signals */ + RL(child = fork()); + if (child == 0) { + int i; + (void)sleep(2); + for(i = 0; i < NSIGNALS; ++i) { + (void)kill(pid, SIGUSR1); + (void)sleep(2); + } + _exit(0); + /* NOTREACHED */ + } + + RL(kq = kqueue()); + + (void)strlcpy(namebuf, "EVFILT_SIGNAL", sizeof(namebuf)); + km.name = namebuf; + RL(ioctl(kq, KFILTER_BYNAME, &km)); + (void)printf("got %d as filter number for `%s'.\n", km.filter, km.name); + + /* ignore the signal to avoid taking it for real */ + REQUIRE_LIBC(signal(SIGUSR1, SIG_IGN), SIG_ERR); + + event[0].ident = SIGUSR1; + event[0].filter = km.filter; + event[0].flags = EV_ADD | EV_ENABLE; + + RL(kevent(kq, event, 1, NULL, 0, NULL)); + + (void)sleep(1); + + timeout.tv_sec = 1; + timeout.tv_nsec = 0; + + for (num = 0; num < NSIGNALS; num += n) { + struct timeval then, now, diff; + + RL(gettimeofday(&then, NULL)); + RL(n = kevent(kq, NULL, 0, event, 1, &timeout)); + RL(gettimeofday(&now, NULL)); + timersub(&now, &then, &diff); + + (void)printf("sig: kevent returned %d in %lld.%06ld\n", + n, (long long)diff.tv_sec, (long)diff.tv_usec); + + if (n == 0) + continue; + + (void)printf("sig: kevent flags: 0x%x, data: %" PRId64 " (# " + "times signal posted)\n", event[0].flags, event[0].data); + } + + (void)waitpid(child, &status, 0); + (void)printf("sig: finished successfully\n"); +} + +ATF_TP_ADD_TCS(tp) +{ + ATF_TP_ADD_TC(tp, sig); + + return atf_no_error(); +} |