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 <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 |
38 | handler (int sig) |
39 | { |
40 | write_message (message: "handler called\n" ); |
41 | _exit (1); |
42 | } |
43 | |
44 | |
45 | static void * |
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, newmask: &ss, NULL) != 0) |
54 | { |
55 | puts (s: "child: sigmask failed" ); |
56 | exit (1); |
57 | } |
58 | |
59 | if (pthread_mutex_lock (mutex: &m) != 0) |
60 | { |
61 | puts (s: "child: mutex_lock failed" ); |
62 | exit (1); |
63 | } |
64 | |
65 | int e = pthread_barrier_wait (barrier: &b); |
66 | if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) |
67 | { |
68 | puts (s: "child: barrier_wait failed" ); |
69 | exit (1); |
70 | } |
71 | |
72 | /* Compute timeout. */ |
73 | struct timeval tv; |
74 | (void) gettimeofday (tv: &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 (cond: &c, mutex: &m, abstime: &ts) != ETIMEDOUT) |
82 | { |
83 | puts (s: "cond_timedwait didn't time out" ); |
84 | exit (1); |
85 | } |
86 | |
87 | return NULL; |
88 | } |
89 | |
90 | |
91 | int |
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, act: &sa, NULL) != 0) |
101 | { |
102 | puts (s: "sigaction failed" ); |
103 | exit (1); |
104 | } |
105 | |
106 | if (pthread_barrier_init (barrier: &b, NULL, count: 2) != 0) |
107 | { |
108 | puts (s: "barrier_init failed" ); |
109 | exit (1); |
110 | } |
111 | |
112 | if (pthread_create (newthread: &th, NULL, start_routine: tf, NULL) != 0) |
113 | { |
114 | puts (s: "create failed" ); |
115 | exit (1); |
116 | } |
117 | |
118 | int e = pthread_barrier_wait (barrier: &b); |
119 | if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) |
120 | { |
121 | puts (s: "barrier_wait failed" ); |
122 | exit (1); |
123 | } |
124 | |
125 | if (pthread_mutex_lock (mutex: &m) != 0) |
126 | { |
127 | puts (s: "mutex_lock failed" ); |
128 | exit (1); |
129 | } |
130 | |
131 | /* Send the thread a signal which it has blocked. */ |
132 | if (pthread_kill (threadid: th, SIGUSR1) != 0) |
133 | { |
134 | puts (s: "kill failed" ); |
135 | exit (1); |
136 | } |
137 | |
138 | if (pthread_mutex_unlock (mutex: &m) != 0) |
139 | { |
140 | puts (s: "mutex_unlock failed" ); |
141 | exit (1); |
142 | } |
143 | |
144 | void *r; |
145 | if (pthread_join (th: th, thread_return: &r) != 0) |
146 | { |
147 | puts (s: "join failed" ); |
148 | exit (1); |
149 | } |
150 | if (r != NULL) |
151 | { |
152 | puts (s: "return value wrong" ); |
153 | exit (1); |
154 | } |
155 | |
156 | return 0; |
157 | } |
158 | |