diff options
Diffstat (limited to 'contrib/netbsd-tests/lib/libc/sys/t_lwp_ctl.c')
| -rw-r--r-- | contrib/netbsd-tests/lib/libc/sys/t_lwp_ctl.c | 74 |
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(); +} |
