Sync to HEAD@r272516.

1 files changed, 74 insertions, 0 deletions

diff --git a/contrib/netbsd-tests/lib/libc/sys/t_lwp_ctl.c b/contrib/netbsd-tests/lib/libc/sys/t_lwp_ctl.c
new file mode 100644
index 0000000..1b28f75
--- /dev/null
+++ b/contrib/netbsd-tests/lib/libc/sys/t_lwp_ctl.c
@@ -0,0 +1,74 @@
+/* $NetBSD: t_lwp_ctl.c,v 1.2 2012/03/18 06:20:51 jruoho Exp $ */
+
+/*-
+ * Copyright (c) 2008 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * 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_lwp_ctl.c,v 1.2 2012/03/18 06:20:51 jruoho Exp $");
+
+#include <sys/lwpctl.h>
+
+#include <atf-c.h>
+#include <lwp.h>
+#include <stdio.h>
+#include <time.h>
+
+ATF_TC(lwpctl_counter);
+ATF_TC_HEAD(lwpctl_counter, tc)
+{
+	atf_tc_set_md_var(tc, "descr", "Checks lwpctl preemption counter");
+}
+
+ATF_TC_BODY(lwpctl_counter, tc)
+{
+	lwpctl_t *lc;
+	struct timespec ts;
+	int ctr1, ctr2;
+
+	ATF_REQUIRE(_lwp_ctl(LWPCTL_FEATURE_PCTR, &lc) == 0);
+
+	/* Ensure that preemption is reported. */
+	ctr1 = lc->lc_pctr;
+	(void)printf("pctr = %d\n", ctr1);
+	ts.tv_nsec = 10*1000000;
+	ts.tv_sec = 0;
+
+	ATF_REQUIRE(nanosleep(&ts, 0) != -1);
+
+	ctr2 = lc->lc_pctr;
+	(void)printf("pctr = %d\n", ctr2);
+
+	ATF_REQUIRE_MSG(ctr1 != ctr2, "counters match");
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+	ATF_TP_ADD_TC(tp, lwpctl_counter);
+
+	return atf_no_error();
+}