1/*	$OpenBSD: pthread_join.c,v 1.1 2011/10/01 10:26:59 fgsch Exp $	*/
2/*
3 * Federico G. Schwindt <fgsch@openbsd.org>, 2011. Public Domain.
4 */
5#include <pthread.h>
6#include <signal.h>
7#include <unistd.h>
8#include "test.h"
9
10volatile sig_atomic_t hits = 0;
11
12void
13handler(int sig)
14{
15	hits++;
16}
17
18void *
19thr_sleep(void *arg)
20{
21	return ((caddr_t)NULL + sleep(5));
22}
23
24void *
25thr_join(void *arg)
26{
27	pthread_t tid = *(pthread_t *)arg;
28	void *retval;
29
30	CHECKr(pthread_join(tid, &retval));
31	return (retval);
32}
33
34int
35main(int argc, char **argv)
36{
37	struct sigaction sa;
38	pthread_t tid[2];
39	void *retval;
40
41	bzero(&sa, sizeof(sa));
42	sa.sa_handler = handler;
43	CHECKe(sigaction(SIGUSR1, &sa, NULL));
44
45	CHECKr(pthread_create(&tid[0], NULL, thr_sleep, NULL));
46	CHECKr(pthread_create(&tid[1], NULL, thr_join, &tid[0]));
47	sleep(2);
48
49	CHECKr(pthread_kill(tid[1], SIGUSR1));
50	sleep(2);
51
52	ASSERT(hits == 1);
53	CHECKr(pthread_join(tid[1], &retval));
54	ASSERT(retval == (void *)0);
55	SUCCEED;
56}
57