t_lwp_ctl.c revision 1.2.2.2
1 1.2.2.2 yamt /* $NetBSD: t_lwp_ctl.c,v 1.2.2.2 2012/04/17 00:09:12 yamt Exp $ */ 2 1.2.2.2 yamt 3 1.2.2.2 yamt /*- 4 1.2.2.2 yamt * Copyright (c) 2008 The NetBSD Foundation, Inc. 5 1.2.2.2 yamt * All rights reserved. 6 1.2.2.2 yamt * 7 1.2.2.2 yamt * Redistribution and use in source and binary forms, with or without 8 1.2.2.2 yamt * modification, are permitted provided that the following conditions 9 1.2.2.2 yamt * are met: 10 1.2.2.2 yamt * 1. Redistributions of source code must retain the above copyright 11 1.2.2.2 yamt * notice, this list of conditions and the following disclaimer. 12 1.2.2.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 13 1.2.2.2 yamt * notice, this list of conditions and the following disclaimer in the 14 1.2.2.2 yamt * documentation and/or other materials provided with the distribution. 15 1.2.2.2 yamt * 16 1.2.2.2 yamt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 1.2.2.2 yamt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 1.2.2.2 yamt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 1.2.2.2 yamt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 1.2.2.2 yamt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 1.2.2.2 yamt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 1.2.2.2 yamt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 1.2.2.2 yamt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 1.2.2.2 yamt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 1.2.2.2 yamt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 1.2.2.2 yamt * POSSIBILITY OF SUCH DAMAGE. 27 1.2.2.2 yamt */ 28 1.2.2.2 yamt 29 1.2.2.2 yamt #include <sys/cdefs.h> 30 1.2.2.2 yamt __COPYRIGHT("@(#) Copyright (c) 2008\ 31 1.2.2.2 yamt The NetBSD Foundation, inc. All rights reserved."); 32 1.2.2.2 yamt __RCSID("$NetBSD: t_lwp_ctl.c,v 1.2.2.2 2012/04/17 00:09:12 yamt Exp $"); 33 1.2.2.2 yamt 34 1.2.2.2 yamt #include <sys/lwpctl.h> 35 1.2.2.2 yamt 36 1.2.2.2 yamt #include <atf-c.h> 37 1.2.2.2 yamt #include <lwp.h> 38 1.2.2.2 yamt #include <stdio.h> 39 1.2.2.2 yamt #include <time.h> 40 1.2.2.2 yamt 41 1.2.2.2 yamt ATF_TC(lwpctl_counter); 42 1.2.2.2 yamt ATF_TC_HEAD(lwpctl_counter, tc) 43 1.2.2.2 yamt { 44 1.2.2.2 yamt atf_tc_set_md_var(tc, "descr", "Checks lwpctl preemption counter"); 45 1.2.2.2 yamt } 46 1.2.2.2 yamt 47 1.2.2.2 yamt ATF_TC_BODY(lwpctl_counter, tc) 48 1.2.2.2 yamt { 49 1.2.2.2 yamt lwpctl_t *lc; 50 1.2.2.2 yamt struct timespec ts; 51 1.2.2.2 yamt int ctr1, ctr2; 52 1.2.2.2 yamt 53 1.2.2.2 yamt ATF_REQUIRE(_lwp_ctl(LWPCTL_FEATURE_PCTR, &lc) == 0); 54 1.2.2.2 yamt 55 1.2.2.2 yamt /* Ensure that preemption is reported. */ 56 1.2.2.2 yamt ctr1 = lc->lc_pctr; 57 1.2.2.2 yamt (void)printf("pctr = %d\n", ctr1); 58 1.2.2.2 yamt ts.tv_nsec = 10*1000000; 59 1.2.2.2 yamt ts.tv_sec = 0; 60 1.2.2.2 yamt 61 1.2.2.2 yamt ATF_REQUIRE(nanosleep(&ts, 0) != -1); 62 1.2.2.2 yamt 63 1.2.2.2 yamt ctr2 = lc->lc_pctr; 64 1.2.2.2 yamt (void)printf("pctr = %d\n", ctr2); 65 1.2.2.2 yamt 66 1.2.2.2 yamt ATF_REQUIRE_MSG(ctr1 != ctr2, "counters match"); 67 1.2.2.2 yamt } 68 1.2.2.2 yamt 69 1.2.2.2 yamt ATF_TP_ADD_TCS(tp) 70 1.2.2.2 yamt { 71 1.2.2.2 yamt ATF_TP_ADD_TC(tp, lwpctl_counter); 72 1.2.2.2 yamt 73 1.2.2.2 yamt return atf_no_error(); 74 1.2.2.2 yamt } 75
Indexes created Tue Sep 30 20:09:53 GMT 2025