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
50static void
51sighandler(int signo __unused)
52{
53}
54
55struct info {
56	void (*fun)(struct timespec *);
57	struct timespec ts;
58};
59
60static void
61timeleft__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
68static void
69timeleft_pselect(struct timespec *ts)
70{
71	ATF_REQUIRE_ERRNO(EINTR, pselect(1, NULL, NULL, NULL, ts, NULL));
72}
73#endif
74
75static void *
76runner(void *arg)
77{
78	struct info *i = arg;
79	(*i->fun)(&i->ts);
80	return NULL;
81}
82
83static void
84tester(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
101ATF_TC(timeleft__lwp_park);
102ATF_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
108ATF_TC_BODY(timeleft__lwp_park, tc)
109{
110	tester(timeleft__lwp_park);
111}
112
113#if 0
114ATF_TC(timeleft_pselect);
115ATF_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
121ATF_TC_BODY(timeleft_pselect, tc)
122{
123	tester(timeleft_pselect);
124}
125#endif
126
127ATF_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