1*a9ca1710Skamil /* $NetBSD: t_call_once.c,v 1.1 2019/04/24 11:43:19 kamil Exp $ */
2*a9ca1710Skamil
3*a9ca1710Skamil /*-
4*a9ca1710Skamil * Copyright (c) 2019 The NetBSD Foundation, Inc.
5*a9ca1710Skamil * All rights reserved.
6*a9ca1710Skamil *
7*a9ca1710Skamil * This code is derived from software contributed to The NetBSD Foundation
8*a9ca1710Skamil * by Kamil Rytarowski.
9*a9ca1710Skamil *
10*a9ca1710Skamil * Redistribution and use in source and binary forms, with or without
11*a9ca1710Skamil * modification, are permitted provided that the following conditions
12*a9ca1710Skamil * are met:
13*a9ca1710Skamil * 1. Redistributions of source code must retain the above copyright
14*a9ca1710Skamil * notice, this list of conditions and the following disclaimer.
15*a9ca1710Skamil * 2. Redistributions in binary form must reproduce the above copyright
16*a9ca1710Skamil * notice, this list of conditions and the following disclaimer in the
17*a9ca1710Skamil * documentation and/or other materials provided with the distribution.
18*a9ca1710Skamil *
19*a9ca1710Skamil * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20*a9ca1710Skamil * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21*a9ca1710Skamil * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22*a9ca1710Skamil * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23*a9ca1710Skamil * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24*a9ca1710Skamil * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25*a9ca1710Skamil * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26*a9ca1710Skamil * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27*a9ca1710Skamil * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28*a9ca1710Skamil * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29*a9ca1710Skamil * POSSIBILITY OF SUCH DAMAGE.
30*a9ca1710Skamil */
31*a9ca1710Skamil
32*a9ca1710Skamil #include <sys/cdefs.h>
33*a9ca1710Skamil __COPYRIGHT("@(#) Copyright (c) 2019\
34*a9ca1710Skamil The NetBSD Foundation, inc. All rights reserved.");
35*a9ca1710Skamil __RCSID("$NetBSD: t_call_once.c,v 1.1 2019/04/24 11:43:19 kamil Exp $");
36*a9ca1710Skamil
37*a9ca1710Skamil #include <threads.h>
38*a9ca1710Skamil
39*a9ca1710Skamil #include <atf-c.h>
40*a9ca1710Skamil
41*a9ca1710Skamil ATF_TC(call_once);
ATF_TC_HEAD(call_once,tc)42*a9ca1710Skamil ATF_TC_HEAD(call_once, tc)
43*a9ca1710Skamil {
44*a9ca1710Skamil atf_tc_set_md_var(tc, "descr", "Test C11 call_once(3)");
45*a9ca1710Skamil }
46*a9ca1710Skamil
47*a9ca1710Skamil #define CO_THREADS 8
48*a9ca1710Skamil
49*a9ca1710Skamil static int co_val;
50*a9ca1710Skamil static once_flag oflag = ONCE_FLAG_INIT;
51*a9ca1710Skamil
52*a9ca1710Skamil static void
called_once(void)53*a9ca1710Skamil called_once(void)
54*a9ca1710Skamil {
55*a9ca1710Skamil
56*a9ca1710Skamil ++co_val;
57*a9ca1710Skamil }
58*a9ca1710Skamil
59*a9ca1710Skamil static int
co_func(void * arg __unused)60*a9ca1710Skamil co_func(void *arg __unused)
61*a9ca1710Skamil {
62*a9ca1710Skamil
63*a9ca1710Skamil call_once(&oflag, called_once);
64*a9ca1710Skamil
65*a9ca1710Skamil return 0;
66*a9ca1710Skamil }
67*a9ca1710Skamil
ATF_TC_BODY(call_once,tc)68*a9ca1710Skamil ATF_TC_BODY(call_once, tc)
69*a9ca1710Skamil {
70*a9ca1710Skamil thrd_t t[CO_THREADS];
71*a9ca1710Skamil size_t i;
72*a9ca1710Skamil
73*a9ca1710Skamil for (i = 0; i < CO_THREADS; i++) {
74*a9ca1710Skamil ATF_REQUIRE_EQ(thrd_create(&t[i], co_func, NULL), thrd_success);
75*a9ca1710Skamil }
76*a9ca1710Skamil
77*a9ca1710Skamil for (i = 0; i < CO_THREADS; i++) {
78*a9ca1710Skamil ATF_REQUIRE_EQ(thrd_join(t[i], NULL), thrd_success);
79*a9ca1710Skamil }
80*a9ca1710Skamil
81*a9ca1710Skamil ATF_REQUIRE_EQ(co_val, 1);
82*a9ca1710Skamil }
83*a9ca1710Skamil
ATF_TP_ADD_TCS(tp)84*a9ca1710Skamil ATF_TP_ADD_TCS(tp)
85*a9ca1710Skamil {
86*a9ca1710Skamil ATF_TP_ADD_TC(tp, call_once);
87*a9ca1710Skamil
88*a9ca1710Skamil return atf_no_error();
89*a9ca1710Skamil }
90