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t_timeleft.c revision 1.1 
      1 /* $NetBSD: t_timeleft.c,v 1.1 2017/12/08 01:19:29 christos Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2017 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Christos Zoulas.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __COPYRIGHT("@(#) Copyright (c) 2008\
     34  The NetBSD Foundation, inc. All rights reserved.");
     35 __RCSID("$NetBSD: t_timeleft.c,v 1.1 2017/12/08 01:19:29 christos Exp $");
     36 
     37 #include <sys/types.h>
     38 #include <sys/select.h>
     39 
     40 #include <atf-c.h>
     41 #include <time.h>
     42 #include <errno.h>
     43 #include <lwp.h>
     44 #include <signal.h>
     45 #include <pthread.h>
     46 #include <stdio.h>
     47 #include <sched.h>
     48 #include <unistd.h>
     49 
     50 static void
     51 sighandler(int signo __unused)
     52 {
     53 }
     54 
     55 struct info {
     56 	void (*fun)(struct timespec *);
     57 	struct timespec ts;
     58 };
     59 
     60 static void
     61 timeleft__lwp_park(struct timespec *ts)
     62 {
     63 	ATF_REQUIRE_ERRNO(EINTR, _lwp_park(CLOCK_MONOTONIC, TIMER_RELTIME,
     64 	    ts, 0, ts, NULL) == -1);
     65 }
     66 
     67 #if 0
     68 static void
     69 timeleft_pselect(struct timespec *ts)
     70 {
     71 	ATF_REQUIRE_ERRNO(EINTR, pselect(1, NULL, NULL, NULL, ts, NULL));
     72 }
     73 #endif
     74 
     75 static void *
     76 runner(void *arg)
     77 {
     78 	struct info *i = arg;
     79 	(*i->fun)(&i->ts);
     80 	return NULL;
     81 }
     82 
     83 static void
     84 tester(void (*fun)(struct timespec *))
     85 {
     86 	const struct timespec ts = { 5, 0 };
     87 	const struct timespec sts = { 0, 1000000 };
     88 	struct info i = { fun, ts };
     89 	pthread_t thr;
     90 
     91 	ATF_REQUIRE(signal(SIGINT, sighandler) == 0);
     92 	ATF_REQUIRE(pthread_create(&thr, NULL, runner, &i) == 0);
     93 
     94 	nanosleep(&sts, NULL);
     95 	pthread_kill(thr, SIGINT);
     96 	printf("Orig time %ju.%lu\n", (intmax_t)ts.tv_sec, ts.tv_nsec);
     97 	printf("Time left %ju.%lu\n", (intmax_t)i.ts.tv_sec, i.ts.tv_nsec);
     98 	ATF_REQUIRE(timespeccmp(&i.ts, &ts, <));
     99 }
    100 
    101 ATF_TC(timeleft__lwp_park);
    102 ATF_TC_HEAD(timeleft__lwp_park, tc)
    103 {
    104 	atf_tc_set_md_var(tc, "descr", "Checks that _lwp_park(2) returns "
    105 	    "the time left to sleep after interrupted");
    106 }
    107 
    108 ATF_TC_BODY(timeleft__lwp_park, tc)
    109 {
    110 	tester(timeleft__lwp_park);
    111 }
    112 
    113 #if 0
    114 ATF_TC(timeleft_pselect);
    115 ATF_TC_HEAD(timeleft_pselect, tc)
    116 {
    117 	atf_tc_set_md_var(tc, "descr", "Checks that pselect(2) returns "
    118 	    "the time left to sleep after interrupted");
    119 }
    120 
    121 ATF_TC_BODY(timeleft_pselect, tc)
    122 {
    123 	tester(timeleft_pselect);
    124 }
    125 #endif
    126 
    127 ATF_TP_ADD_TCS(tp)
    128 {
    129 
    130 	ATF_TP_ADD_TC(tp, timeleft__lwp_park);
    131 #if 0
    132 	ATF_TP_ADD_TC(tp, timeleft_pselect);
    133 #endif
    134 
    135 	return atf_no_error();
    136 }
    137