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 <semaphore.h> |
22 | #include <stdio.h> |
23 | #include <stdlib.h> |
24 | #include <unistd.h> |
25 | |
26 | |
27 | #define N 10 |
28 | static pthread_t th[N]; |
29 | |
30 | |
31 | static int do_test (void); |
32 | |
33 | #define TEST_FUNCTION do_test () |
34 | #include "../test-skeleton.c" |
35 | |
36 | #define CB(n) \ |
37 | static void \ |
38 | cb##n (void) \ |
39 | { \ |
40 | if (th[n] != pthread_self ()) \ |
41 | { \ |
42 | write_message ("wrong callback\n"); \ |
43 | _exit (1); \ |
44 | } \ |
45 | } |
46 | CB (0) |
47 | CB (1) |
48 | CB (2) |
49 | CB (3) |
50 | CB (4) |
51 | CB (5) |
52 | CB (6) |
53 | CB (7) |
54 | CB (8) |
55 | CB (9) |
56 | static void (*cbs[]) (void) = |
57 | { |
58 | cb0, cb1, cb2, cb3, cb4, cb5, cb6, cb7, cb8, cb9 |
59 | }; |
60 | |
61 | |
62 | static __thread void (*fp) (void) __attribute__ ((tls_model ("local-exec" ))); |
63 | |
64 | |
65 | static sem_t s; |
66 | |
67 | |
68 | #define THE_SIG SIGUSR1 |
69 | static void |
70 | handler (int sig) |
71 | { |
72 | if (sig != THE_SIG) |
73 | { |
74 | write_message (message: "wrong signal\n" ); |
75 | _exit (1); |
76 | } |
77 | |
78 | fp (); |
79 | |
80 | if (sem_post (sem: &s) != 0) |
81 | { |
82 | write_message (message: "sem_post failed\n" ); |
83 | _exit (1); |
84 | } |
85 | } |
86 | |
87 | |
88 | static pthread_barrier_t b; |
89 | |
90 | #define TOTAL_SIGS 1000 |
91 | static int nsigs; |
92 | |
93 | |
94 | static void * |
95 | tf (void *arg) |
96 | { |
97 | fp = arg; |
98 | |
99 | pthread_barrier_wait (barrier: &b); |
100 | |
101 | pthread_barrier_wait (barrier: &b); |
102 | |
103 | if (nsigs != TOTAL_SIGS) |
104 | { |
105 | puts (s: "barrier_wait prematurely returns" ); |
106 | exit (1); |
107 | } |
108 | |
109 | return NULL; |
110 | } |
111 | |
112 | |
113 | int |
114 | do_test (void) |
115 | { |
116 | if (pthread_barrier_init (barrier: &b, NULL, N + 1) != 0) |
117 | { |
118 | puts (s: "barrier_init failed" ); |
119 | exit (1); |
120 | } |
121 | |
122 | if (sem_init (sem: &s, pshared: 0, value: 0) != 0) |
123 | { |
124 | puts (s: "sem_init failed" ); |
125 | exit (1); |
126 | } |
127 | |
128 | struct sigaction sa; |
129 | sa.sa_handler = handler; |
130 | sigemptyset (&sa.sa_mask); |
131 | sa.sa_flags = 0; |
132 | if (sigaction (THE_SIG, act: &sa, NULL) != 0) |
133 | { |
134 | puts (s: "sigaction failed" ); |
135 | exit (1); |
136 | } |
137 | |
138 | pthread_attr_t a; |
139 | |
140 | if (pthread_attr_init (attr: &a) != 0) |
141 | { |
142 | puts (s: "attr_init failed" ); |
143 | exit (1); |
144 | } |
145 | |
146 | if (pthread_attr_setstacksize (attr: &a, stacksize: 1 * 1024 * 1024) != 0) |
147 | { |
148 | puts (s: "attr_setstacksize failed" ); |
149 | return 1; |
150 | } |
151 | |
152 | int i; |
153 | for (i = 0; i < N; ++i) |
154 | if (pthread_create (newthread: &th[i], attr: &a, start_routine: tf, arg: cbs[i]) != 0) |
155 | { |
156 | puts (s: "pthread_create failed" ); |
157 | exit (1); |
158 | } |
159 | |
160 | if (pthread_attr_destroy (attr: &a) != 0) |
161 | { |
162 | puts (s: "attr_destroy failed" ); |
163 | exit (1); |
164 | } |
165 | |
166 | pthread_barrier_wait (barrier: &b); |
167 | |
168 | sigset_t ss; |
169 | sigemptyset (&ss); |
170 | sigaddset (&ss, THE_SIG); |
171 | if (pthread_sigmask (SIG_BLOCK, newmask: &ss, NULL) != 0) |
172 | { |
173 | puts (s: "pthread_sigmask failed" ); |
174 | exit (1); |
175 | } |
176 | |
177 | /* Start sending signals. */ |
178 | for (i = 0; i < TOTAL_SIGS; ++i) |
179 | { |
180 | if (kill (pid: getpid (), THE_SIG) != 0) |
181 | { |
182 | puts (s: "kill failed" ); |
183 | exit (1); |
184 | } |
185 | |
186 | if (TEMP_FAILURE_RETRY (sem_wait (&s)) != 0) |
187 | { |
188 | puts (s: "sem_wait failed" ); |
189 | exit (1); |
190 | } |
191 | |
192 | ++nsigs; |
193 | } |
194 | |
195 | pthread_barrier_wait (barrier: &b); |
196 | |
197 | for (i = 0; i < N; ++i) |
198 | if (pthread_join (th: th[i], NULL) != 0) |
199 | { |
200 | puts (s: "join failed" ); |
201 | exit (1); |
202 | } |
203 | |
204 | return 0; |
205 | } |
206 | |