1 /* Copyright (C) 2002-2022 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18 /* NOTE: this tests functionality beyond POSIX. POSIX does not allow
19 exit to be called more than once. */
20
21 #include <pthread.h>
22 #include <stdio.h>
23 #include <stdlib.h>
24
25 static pthread_barrier_t b;
26
27
28 static void *
tf(void * arg)29 tf (void *arg)
30 {
31 int r = pthread_barrier_wait (&b);
32 if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
33 {
34 puts ("barrier_wait failed");
35 exit (1);
36 }
37
38 exit (0);
39 }
40
41
42 static int
do_test(void)43 do_test (void)
44 {
45 if (pthread_barrier_init (&b, NULL, 2) != 0)
46 {
47 puts ("barrier_init failed");
48 exit (1);
49 }
50
51 pthread_t th;
52 if (pthread_create (&th, NULL, tf, NULL) != 0)
53 {
54 puts ("create failed");
55 exit (1);
56 }
57
58 int r = pthread_barrier_wait (&b);
59 if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
60 {
61 puts ("barrier_wait failed");
62 exit (1);
63 }
64
65 /* Do nothing. */
66 if (pthread_join (th, NULL) == 0)
67 {
68 puts ("join succeeded!?");
69 exit (1);
70 }
71
72 puts ("join returned!?");
73 exit (1);
74 }
75
76 #define TEST_FUNCTION do_test ()
77 #include "../test-skeleton.c"
78