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      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