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 <unistd.h>
24 #include <sys/time.h>
25
26
27 static int do_test (void);
28
29 #define TEST_FUNCTION do_test ()
30 #include "../test-skeleton.c"
31
32 static pthread_cond_t c = PTHREAD_COND_INITIALIZER;
33 static pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER;
34 static pthread_barrier_t b;
35
36
37 static void
handler(int sig)38 handler (int sig)
39 {
40 write_message ("handler called\n");
41 _exit (1);
42 }
43
44
45 static void *
tf(void * a)46 tf (void *a)
47 {
48 /* Block SIGUSR1. */
49 sigset_t ss;
50
51 sigemptyset (&ss);
52 sigaddset (&ss, SIGUSR1);
53 if (pthread_sigmask (SIG_BLOCK, &ss, NULL) != 0)
54 {
55 puts ("child: sigmask failed");
56 exit (1);
57 }
58
59 if (pthread_mutex_lock (&m) != 0)
60 {
61 puts ("child: mutex_lock failed");
62 exit (1);
63 }
64
65 int e = pthread_barrier_wait (&b);
66 if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
67 {
68 puts ("child: barrier_wait failed");
69 exit (1);
70 }
71
72 /* Compute timeout. */
73 struct timeval tv;
74 (void) gettimeofday (&tv, NULL);
75 struct timespec ts;
76 TIMEVAL_TO_TIMESPEC (&tv, &ts);
77 /* Timeout: 1sec. */
78 ts.tv_sec += 1;
79
80 /* This call should never return. */
81 if (pthread_cond_timedwait (&c, &m, &ts) != ETIMEDOUT)
82 {
83 puts ("cond_timedwait didn't time out");
84 exit (1);
85 }
86
87 return NULL;
88 }
89
90
91 int
do_test(void)92 do_test (void)
93 {
94 pthread_t th;
95
96 struct sigaction sa;
97 sigemptyset (&sa.sa_mask);
98 sa.sa_flags = 0;
99 sa.sa_handler = handler;
100 if (sigaction (SIGUSR1, &sa, NULL) != 0)
101 {
102 puts ("sigaction failed");
103 exit (1);
104 }
105
106 if (pthread_barrier_init (&b, NULL, 2) != 0)
107 {
108 puts ("barrier_init failed");
109 exit (1);
110 }
111
112 if (pthread_create (&th, NULL, tf, NULL) != 0)
113 {
114 puts ("create failed");
115 exit (1);
116 }
117
118 int e = pthread_barrier_wait (&b);
119 if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
120 {
121 puts ("barrier_wait failed");
122 exit (1);
123 }
124
125 if (pthread_mutex_lock (&m) != 0)
126 {
127 puts ("mutex_lock failed");
128 exit (1);
129 }
130
131 /* Send the thread a signal which it has blocked. */
132 if (pthread_kill (th, SIGUSR1) != 0)
133 {
134 puts ("kill failed");
135 exit (1);
136 }
137
138 if (pthread_mutex_unlock (&m) != 0)
139 {
140 puts ("mutex_unlock failed");
141 exit (1);
142 }
143
144 void *r;
145 if (pthread_join (th, &r) != 0)
146 {
147 puts ("join failed");
148 exit (1);
149 }
150 if (r != NULL)
151 {
152 puts ("return value wrong");
153 exit (1);
154 }
155
156 return 0;
157 }
158