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bfff8b1b | 1 | /* Copyright (C) 2003-2017 Free Software Foundation, Inc. |
1c848253 UD |
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 | |
59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
1c848253 | 18 | |
ccf1d573 | 19 | #include <errno.h> |
1c848253 UD |
20 | #include <pthread.h> |
21 | #include <semaphore.h> | |
22 | #include <signal.h> | |
23 | #include <stdio.h> | |
24 | #include <stdlib.h> | |
25 | #include <unistd.h> | |
26 | ||
27 | ||
d5b38790 GG |
28 | static int do_test (void); |
29 | ||
30 | #define TEST_FUNCTION do_test () | |
31 | #include "../test-skeleton.c" | |
32 | ||
1c848253 UD |
33 | static pthread_t receiver; |
34 | static sem_t sem; | |
35 | static pthread_barrier_t b; | |
36 | ||
37 | static void | |
38 | handler (int sig) | |
39 | { | |
40 | if (sig != SIGUSR1) | |
41 | { | |
d5b38790 | 42 | write_message ("wrong signal\n"); |
1c848253 UD |
43 | _exit (1); |
44 | } | |
45 | ||
46 | if (pthread_self () != receiver) | |
47 | { | |
d5b38790 | 48 | write_message ("not the intended receiver\n"); |
1c848253 UD |
49 | _exit (1); |
50 | } | |
51 | ||
52 | if (sem_post (&sem) != 0) | |
53 | { | |
d5b38790 | 54 | write_message ("sem_post failed\n"); |
1c848253 UD |
55 | _exit (1); |
56 | } | |
57 | } | |
58 | ||
59 | ||
60 | static void * | |
61 | tf (void *a) | |
62 | { | |
63 | int e = pthread_barrier_wait (&b); | |
64 | if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) | |
65 | { | |
66 | puts ("child: barrier_wait failed"); | |
67 | exit (1); | |
68 | } | |
69 | ||
70 | return NULL; | |
71 | } | |
72 | ||
73 | ||
74 | int | |
75 | do_test (void) | |
76 | { | |
77 | struct sigaction sa; | |
78 | sigemptyset (&sa.sa_mask); | |
79 | sa.sa_flags = 0; | |
80 | sa.sa_handler = handler; | |
81 | if (sigaction (SIGUSR1, &sa, NULL) != 0) | |
82 | { | |
83 | puts ("sigaction failed"); | |
84 | exit (1); | |
85 | } | |
86 | ||
87 | #define N 20 | |
88 | ||
89 | if (pthread_barrier_init (&b, NULL, N + 1) != 0) | |
90 | { | |
91 | puts ("barrier_init failed"); | |
92 | exit (1); | |
93 | } | |
94 | ||
4d1a02ef UD |
95 | pthread_attr_t a; |
96 | ||
97 | if (pthread_attr_init (&a) != 0) | |
98 | { | |
99 | puts ("attr_init failed"); | |
100 | exit (1); | |
101 | } | |
102 | ||
103 | if (pthread_attr_setstacksize (&a, 1 * 1024 * 1024) != 0) | |
104 | { | |
105 | puts ("attr_setstacksize failed"); | |
106 | return 1; | |
107 | } | |
108 | ||
1c848253 UD |
109 | pthread_t th[N]; |
110 | int i; | |
111 | for (i = 0; i < N; ++i) | |
4d1a02ef | 112 | if (pthread_create (&th[i], &a, tf, NULL) != 0) |
1c848253 UD |
113 | { |
114 | puts ("create failed"); | |
115 | exit (1); | |
116 | } | |
117 | ||
4d1a02ef UD |
118 | if (pthread_attr_destroy (&a) != 0) |
119 | { | |
120 | puts ("attr_destroy failed"); | |
121 | exit (1); | |
122 | } | |
123 | ||
1c848253 UD |
124 | if (sem_init (&sem, 0, 0) != 0) |
125 | { | |
126 | puts ("sem_init failed"); | |
127 | exit (1); | |
128 | } | |
129 | ||
130 | for (i = 0; i < N * 10; ++i) | |
131 | { | |
132 | receiver = th[i % N]; | |
133 | ||
134 | if (pthread_kill (receiver, SIGUSR1) != 0) | |
135 | { | |
136 | puts ("kill failed"); | |
137 | exit (1); | |
138 | } | |
139 | ||
ccf1d573 | 140 | if (TEMP_FAILURE_RETRY (sem_wait (&sem)) != 0) |
1c848253 UD |
141 | { |
142 | puts ("sem_wait failed"); | |
143 | exit (1); | |
144 | } | |
145 | } | |
146 | ||
147 | int e = pthread_barrier_wait (&b); | |
148 | if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) | |
149 | { | |
150 | puts ("barrier_wait failed"); | |
151 | exit (1); | |
152 | } | |
153 | ||
154 | for (i = 0; i < N; ++i) | |
155 | if (pthread_join (th[i], NULL) != 0) | |
156 | { | |
157 | puts ("join failed"); | |
158 | exit (1); | |
159 | } | |
160 | ||
161 | return 0; | |
162 | } |