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lh9ed821d2023-04-07 01:36:19 -07001/* Copyright (C) 2003-2015 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
18
19#include <errno.h>
20#include <pthread.h>
21#include <signal.h>
22#include <semaphore.h>
23#include <stdio.h>
24#include <stdlib.h>
25#include <unistd.h>
26
27
28#define N 10
29static pthread_t th[N];
30
31
32#define CB(n) \
33static void \
34cb##n (void) \
35{ \
36 if (th[n] != pthread_self ()) \
37 { \
38 write (STDOUT_FILENO, "wrong callback\n", 15); \
39 _exit (1); \
40 } \
41}
42CB (0)
43CB (1)
44CB (2)
45CB (3)
46CB (4)
47CB (5)
48CB (6)
49CB (7)
50CB (8)
51CB (9)
52static void (*cbs[]) (void) =
53{
54 cb0, cb1, cb2, cb3, cb4, cb5, cb6, cb7, cb8, cb9
55};
56
57
58static __thread void (*fp) (void) __attribute__ ((tls_model ("local-exec")));
59
60
61static sem_t s;
62
63
64#define THE_SIG SIGUSR1
65static void
66handler (int sig)
67{
68 if (sig != THE_SIG)
69 {
70 write (STDOUT_FILENO, "wrong signal\n", 13);
71 _exit (1);
72 }
73
74 fp ();
75
76 if (sem_post (&s) != 0)
77 {
78 write (STDOUT_FILENO, "sem_post failed\n", 16);
79 _exit (1);
80 }
81}
82
83
84static pthread_barrier_t b;
85
86#define TOTAL_SIGS 1000
87static int nsigs;
88
89
90static void *
91tf (void *arg)
92{
93 fp = arg;
94
95 pthread_barrier_wait (&b);
96
97 pthread_barrier_wait (&b);
98
99 if (nsigs != TOTAL_SIGS)
100 {
101 puts ("barrier_wait prematurely returns");
102 exit (1);
103 }
104
105 return NULL;
106}
107
108
109int
110do_test (void)
111{
112 if (pthread_barrier_init (&b, NULL, N + 1) != 0)
113 {
114 puts ("barrier_init failed");
115 exit (1);
116 }
117
118 if (sem_init (&s, 0, 0) != 0)
119 {
120 puts ("sem_init failed");
121 exit (1);
122 }
123
124 struct sigaction sa;
125 sa.sa_handler = handler;
126 sigemptyset (&sa.sa_mask);
127 sa.sa_flags = 0;
128 if (sigaction (THE_SIG, &sa, NULL) != 0)
129 {
130 puts ("sigaction failed");
131 exit (1);
132 }
133
134 pthread_attr_t a;
135
136 if (pthread_attr_init (&a) != 0)
137 {
138 puts ("attr_init failed");
139 exit (1);
140 }
141
142 if (pthread_attr_setstacksize (&a, 1 * 1024 * 1024) != 0)
143 {
144 puts ("attr_setstacksize failed");
145 return 1;
146 }
147
148 int i;
149 for (i = 0; i < N; ++i)
150 if (pthread_create (&th[i], &a, tf, cbs[i]) != 0)
151 {
152 puts ("pthread_create failed");
153 exit (1);
154 }
155
156 if (pthread_attr_destroy (&a) != 0)
157 {
158 puts ("attr_destroy failed");
159 exit (1);
160 }
161
162 pthread_barrier_wait (&b);
163
164 sigset_t ss;
165 sigemptyset (&ss);
166 sigaddset (&ss, THE_SIG);
167 if (pthread_sigmask (SIG_BLOCK, &ss, NULL) != 0)
168 {
169 puts ("pthread_sigmask failed");
170 exit (1);
171 }
172
173 /* Start sending signals. */
174 for (i = 0; i < TOTAL_SIGS; ++i)
175 {
176 if (kill (getpid (), THE_SIG) != 0)
177 {
178 puts ("kill failed");
179 exit (1);
180 }
181
182 if (TEMP_FAILURE_RETRY (sem_wait (&s)) != 0)
183 {
184 puts ("sem_wait failed");
185 exit (1);
186 }
187
188 ++nsigs;
189 }
190
191 pthread_barrier_wait (&b);
192
193 for (i = 0; i < N; ++i)
194 if (pthread_join (th[i], NULL) != 0)
195 {
196 puts ("join failed");
197 exit (1);
198 }
199
200 return 0;
201}
202
203
204#define TEST_FUNCTION do_test ()
205#include "../test-skeleton.c"