1 | /* Copyright (C) 2003-2024 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 * |
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, newmask: &ss, NULL) != 0) |
39 | { |
40 | puts (s: "child: sigmask failed" ); |
41 | exit (1); |
42 | } |
43 | |
44 | if (pthread_mutex_lock (mutex: &m) != 0) |
45 | { |
46 | puts (s: "child: mutex_lock failed" ); |
47 | exit (1); |
48 | } |
49 | |
50 | int e = pthread_barrier_wait (barrier: &b); |
51 | if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) |
52 | { |
53 | puts (s: "child: barrier_wait failed" ); |
54 | exit (1); |
55 | } |
56 | |
57 | /* Compute timeout. */ |
58 | struct timeval tv; |
59 | (void) gettimeofday (tv: &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 (cond: &c, mutex: &m, abstime: &ts) != ETIMEDOUT) |
67 | { |
68 | puts (s: "cond_timedwait didn't time out" ); |
69 | exit (1); |
70 | } |
71 | |
72 | return NULL; |
73 | } |
74 | |
75 | |
76 | int |
77 | do_test (void) |
78 | { |
79 | pthread_t th; |
80 | |
81 | if (pthread_barrier_init (barrier: &b, NULL, count: 2) != 0) |
82 | { |
83 | puts (s: "barrier_init failed" ); |
84 | exit (1); |
85 | } |
86 | |
87 | if (pthread_create (newthread: &th, NULL, start_routine: tf, NULL) != 0) |
88 | { |
89 | puts (s: "create failed" ); |
90 | exit (1); |
91 | } |
92 | |
93 | int e = pthread_barrier_wait (barrier: &b); |
94 | if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) |
95 | { |
96 | puts (s: "barrier_wait failed" ); |
97 | exit (1); |
98 | } |
99 | |
100 | if (pthread_mutex_lock (mutex: &m) != 0) |
101 | { |
102 | puts (s: "mutex_lock failed" ); |
103 | exit (1); |
104 | } |
105 | |
106 | /* Send the thread a signal which it has blocked. */ |
107 | if (pthread_kill (threadid: th, SIGUSR1) != 0) |
108 | { |
109 | puts (s: "kill failed" ); |
110 | exit (1); |
111 | } |
112 | |
113 | if (pthread_mutex_unlock (mutex: &m) != 0) |
114 | { |
115 | puts (s: "mutex_unlock failed" ); |
116 | exit (1); |
117 | } |
118 | |
119 | void *r; |
120 | if (pthread_join (th: th, thread_return: &r) != 0) |
121 | { |
122 | puts (s: "join failed" ); |
123 | exit (1); |
124 | } |
125 | if (r != NULL) |
126 | { |
127 | puts (s: "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 | |