xref: /freebsd/lib/libc/tests/stdlib/dynthr_mod/dynthr_mod.c (revision f6a3b357e9be4c6423c85eff9a847163a0d307c8)
1 /*
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (C) 2019 Andrew Gierth
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  *
27  * Though this file is initially distributed under the 2-clause BSD license,
28  * the author grants permission for its redistribution under alternative
29  * licenses as set forth at <https://rhodiumtoad.github.io/RELICENSE.txt>.
30  * This paragraph and the RELICENSE.txt file are not part of the license and
31  * may be omitted in redistributions.
32  */
33 
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD$");
36 
37 #include <stdio.h>
38 #include <stdlib.h>
39 #include <stdarg.h>
40 #include <string.h>
41 #include <unistd.h>
42 #include <pthread.h>
43 
44 static pthread_t thr;
45 
46 static void *
47 mod_thread(void *ptr)
48 {
49 	char *volatile dummy;
50 
51 	dummy = malloc(500);
52 	return (NULL);
53 }
54 
55 void
56 mod_main(int op)
57 {
58 	int rc;
59 
60 	switch (op) {
61 	case 1:
62 		rc = pthread_create(&thr, NULL, mod_thread, NULL);
63 		if (rc != 0)
64 			_exit(1);
65 		break;
66 	case 0:
67 		pthread_join(thr, NULL);
68 		break;
69 	}
70 }
71 
72