xref: /freebsd/lib/libc/tests/stdlib/dynthr_mod/dynthr_mod.c (revision 1fc62360069b3c96986b58c3ebb5182d8b3760da)
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