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      1 /* $NetBSD: t_sleep.c,v 1.1 2010/07/16 15:42:53 jmmv Exp $ */
      2 
      3 /*
      4  * Copyright (c) 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_sleep.c,v 1.1 2010/07/16 15:42:53 jmmv Exp $");
     33 
     34 #include <sys/time.h>
     35 
     36 #include <pthread.h>
     37 #include <signal.h>
     38 #include <stdio.h>
     39 #include <unistd.h>
     40 
     41 #include <atf-c.h>
     42 
     43 #include "h_common.h"
     44 
     45 #define LONGTIME 2000000000
     46 
     47 static void *
     48 threadfunc(void *arg)
     49 {
     50 	sleep(LONGTIME);
     51 
     52 	return NULL;
     53 }
     54 
     55 static void
     56 handler(int sig)
     57 {
     58 	/*
     59 	 * Nothing to do; invoking the handler is enough to interrupt
     60 	 * the sleep.
     61 	 */
     62 }
     63 
     64 ATF_TC(sleep1);
     65 ATF_TC_HEAD(sleep1, tc)
     66 {
     67 	atf_tc_set_md_var(tc, "descr", "Checks sleeping past the time when "
     68 	    "time_t wraps");
     69 }
     70 ATF_TC_BODY(sleep1, tc)
     71 {
     72 	pthread_t thread;
     73 	struct itimerval it;
     74 	struct sigaction act;
     75 	sigset_t mtsm;
     76 
     77 	printf("Testing sleeps unreasonably far into the future.\n");
     78 
     79 	act.sa_handler = handler;
     80 	sigemptyset(&act.sa_mask);
     81 	act.sa_flags = 0;
     82 	sigaction(SIGALRM, &act, NULL);
     83 
     84 	PTHREAD_REQUIRE(pthread_create(&thread, NULL, threadfunc, NULL));
     85 
     86 	/* make sure the signal is delivered to the child thread */
     87 	sigemptyset(&mtsm);
     88 	sigaddset(&mtsm, SIGALRM);
     89 	PTHREAD_REQUIRE(pthread_sigmask(SIG_BLOCK, &mtsm, 0));
     90 
     91 	timerclear(&it.it_interval);
     92 	timerclear(&it.it_value);
     93 	it.it_value.tv_sec = 1;
     94 	setitimer(ITIMER_REAL, &it, NULL);
     95 
     96 	PTHREAD_REQUIRE(pthread_join(thread, NULL));
     97 }
     98 
     99 ATF_TP_ADD_TCS(tp)
    100 {
    101 	ATF_TP_ADD_TC(tp, sleep1);
    102 
    103 	return atf_no_error();
    104 }
    105