1 /* Copyright (C) 2003-2022 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 #include <errno.h>
19 #include <pthread.h>
20 #include <signal.h>
21 #include <stdio.h>
22 #include <stdlib.h>
23 #include <sys/time.h>
24
25
26 static pthread_cond_t c = PTHREAD_COND_INITIALIZER;
27 static pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER;
28 static pthread_barrier_t b;
29
30 static void *
tf(void * a)31 tf (void *a)
32 {
33 /* Block SIGUSR1. */
34 sigset_t ss;
35
36 sigemptyset (&ss);
37 sigaddset (&ss, SIGUSR1);
38 if (pthread_sigmask (SIG_BLOCK, &ss, NULL) != 0)
39 {
40 puts ("child: sigmask failed");
41 exit (1);
42 }
43
44 if (pthread_mutex_lock (&m) != 0)
45 {
46 puts ("child: mutex_lock failed");
47 exit (1);
48 }
49
50 int e = pthread_barrier_wait (&b);
51 if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
52 {
53 puts ("child: barrier_wait failed");
54 exit (1);
55 }
56
57 /* Compute timeout. */
58 struct timeval tv;
59 (void) gettimeofday (&tv, NULL);
60 struct timespec ts;
61 TIMEVAL_TO_TIMESPEC (&tv, &ts);
62 /* Timeout: 1sec. */
63 ts.tv_sec += 1;
64
65 /* This call should never return. */
66 if (pthread_cond_timedwait (&c, &m, &ts) != ETIMEDOUT)
67 {
68 puts ("cond_timedwait didn't time out");
69 exit (1);
70 }
71
72 return NULL;
73 }
74
75
76 int
do_test(void)77 do_test (void)
78 {
79 pthread_t th;
80
81 if (pthread_barrier_init (&b, NULL, 2) != 0)
82 {
83 puts ("barrier_init failed");
84 exit (1);
85 }
86
87 if (pthread_create (&th, NULL, tf, NULL) != 0)
88 {
89 puts ("create failed");
90 exit (1);
91 }
92
93 int e = pthread_barrier_wait (&b);
94 if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
95 {
96 puts ("barrier_wait failed");
97 exit (1);
98 }
99
100 if (pthread_mutex_lock (&m) != 0)
101 {
102 puts ("mutex_lock failed");
103 exit (1);
104 }
105
106 /* Send the thread a signal which it has blocked. */
107 if (pthread_kill (th, SIGUSR1) != 0)
108 {
109 puts ("kill failed");
110 exit (1);
111 }
112
113 if (pthread_mutex_unlock (&m) != 0)
114 {
115 puts ("mutex_unlock failed");
116 exit (1);
117 }
118
119 void *r;
120 if (pthread_join (th, &r) != 0)
121 {
122 puts ("join failed");
123 exit (1);
124 }
125 if (r != NULL)
126 {
127 puts ("return value wrong");
128 exit (1);
129 }
130
131 return 0;
132 }
133
134
135 #define TEST_FUNCTION do_test ()
136 #include "../test-skeleton.c"
137