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      1 /*	$NetBSD: t_call_once.c,v 1.1 2019/04/24 11:43:19 kamil Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2019 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Kamil Rytarowski.
      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) 2019\
     34  The NetBSD Foundation, inc. All rights reserved.");
     35 __RCSID("$NetBSD: t_call_once.c,v 1.1 2019/04/24 11:43:19 kamil Exp $");
     36 
     37 #include <threads.h>
     38 
     39 #include <atf-c.h>
     40 
     41 ATF_TC(call_once);
     42 ATF_TC_HEAD(call_once, tc)
     43 {
     44 	atf_tc_set_md_var(tc, "descr", "Test C11 call_once(3)");
     45 }
     46 
     47 #define CO_THREADS 8
     48 
     49 static int co_val;
     50 static once_flag oflag = ONCE_FLAG_INIT;
     51 
     52 static void
     53 called_once(void)
     54 {
     55 
     56 	++co_val;
     57 }
     58 
     59 static int
     60 co_func(void *arg __unused)
     61 {
     62 
     63 	call_once(&oflag, called_once);
     64 
     65 	return 0;
     66 }
     67 
     68 ATF_TC_BODY(call_once, tc)
     69 {
     70 	thrd_t t[CO_THREADS];
     71 	size_t i;
     72 
     73 	for (i = 0; i < CO_THREADS; i++) {
     74 		ATF_REQUIRE_EQ(thrd_create(&t[i], co_func, NULL), thrd_success);
     75 	}
     76 
     77 	for (i = 0; i < CO_THREADS; i++) {
     78 		ATF_REQUIRE_EQ(thrd_join(t[i], NULL), thrd_success);
     79 	}
     80 
     81 	ATF_REQUIRE_EQ(co_val, 1);
     82 }
     83 
     84 ATF_TP_ADD_TCS(tp)
     85 {
     86 	ATF_TP_ADD_TC(tp, call_once);
     87 
     88 	return atf_no_error();
     89 }
     90