1 /* $NetBSD: t_lock.c,v 1.2 2017/01/13 21:30:41 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 2002, 2008 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __COPYRIGHT("@(#) Copyright (c) 2008\ 31 The NetBSD Foundation, inc. All rights reserved."); 32 __RCSID("$NetBSD: t_lock.c,v 1.2 2017/01/13 21:30:41 christos Exp $"); 33 34 #include <sys/time.h> 35 36 #include <machine/lock.h> 37 #include <signal.h> 38 39 #include <atf-c.h> 40 41 #include "h_macros.h" 42 43 __cpu_simple_lock_t lk; 44 volatile int handled = 0; 45 46 static void 47 handler(int sig) 48 { 49 handled = 1; 50 __cpu_simple_unlock(&lk); 51 } 52 53 ATF_TC(lock); 54 ATF_TC_HEAD(lock, tc) 55 { 56 atf_tc_set_md_var(tc, "timeout", "3"); 57 atf_tc_set_md_var(tc, "descr", 58 "Checks __cpu_simple_lock()/__cpu_simple_unlock()"); 59 } 60 ATF_TC_BODY(lock, tc) 61 { 62 struct itimerval itv; 63 64 __cpu_simple_lock_init(&lk); 65 66 REQUIRE_LIBC(signal(SIGVTALRM, handler), SIG_ERR); 67 68 itv.it_interval.tv_sec = 0; 69 itv.it_interval.tv_usec = 0; 70 itv.it_value.tv_sec = 1; 71 itv.it_value.tv_usec = 0; 72 RL(setitimer(ITIMER_VIRTUAL, &itv, NULL)); 73 74 __cpu_simple_lock(&lk); 75 __cpu_simple_lock(&lk); 76 77 ATF_REQUIRE(handled); 78 79 __cpu_simple_unlock(&lk); 80 } 81 82 ATF_TP_ADD_TCS(tp) 83 { 84 ATF_TP_ADD_TC(tp, lock); 85 86 return atf_no_error(); 87 } 88