1 /*	$OpenBSD: pthread_once.c,v 1.3 2018/03/19 03:48:17 guenther Exp $ */
2 /*
3  * Copyright (c) 2004,2005 Ted Unangst <tedu@openbsd.org>s
4  * Copyright (c) 2018 Bob Beck <beck@openbsd.org>
5  *
6  * Permission to use, copy, modify, and distribute this software for any
7  * purpose with or without fee is hereby granted, provided that the above
8  * copyright notice and this permission notice appear in all copies.
9  *
10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17  */
18 
19 #include <pthread.h>
20 
21 int
22 pthread_once(pthread_once_t *once_control, void (*init_routine)(void))
23 {
24 	if (once_control->state == PTHREAD_NEEDS_INIT) {
25 		init_routine();
26 		once_control->state = PTHREAD_DONE_INIT;
27 	}
28 	return (0);
29 }
30 
31 int
32 pthread_equal(pthread_t t1, pthread_t t2)
33 {
34 	return (t1 == t2);
35 }
36 
37 pthread_t
38 pthread_self(void)
39 {
40 	/* needs to differ from 0 inited value. */
41 	return (pthread_t) 1;
42 }
43 DEF_STRONG(pthread_self);
44