summaryrefslogtreecommitdiffstats
path: root/contrib/netbsd-tests/kernel/kqueue/t_sig.c
diff options
context:
space:
mode:
Diffstat (limited to 'contrib/netbsd-tests/kernel/kqueue/t_sig.c')
-rw-r--r--contrib/netbsd-tests/kernel/kqueue/t_sig.c133
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();
+}
OpenPOWER on IntegriCloud