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[glibc/history.git] / nptl / tst-tls2.c
blob73ed33eb6a50293ce28f8b2c93db9bf7b81407ef
1 /* Copyright (C) 2003, 2004 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
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.
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.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 02111-1307 USA. */
20 #include <errno.h>
21 #include <pthread.h>
22 #include <signal.h>
23 #include <semaphore.h>
24 #include <stdio.h>
25 #include <stdlib.h>
26 #include <unistd.h>
28 #if HAVE___THREAD
30 #define N 10
31 static pthread_t th[N];
34 #define CB(n) \
35 static void \
36 cb##n (void) \
37 { \
38 if (th[n] != pthread_self ()) \
39 { \
40 write (STDOUT_FILENO, "wrong callback\n", 15); \
41 _exit (1); \
42 } \
44 CB (0)
45 CB (1)
46 CB (2)
47 CB (3)
48 CB (4)
49 CB (5)
50 CB (6)
51 CB (7)
52 CB (8)
53 CB (9)
54 static void (*cbs[]) (void) =
56 cb0, cb1, cb2, cb3, cb4, cb5, cb6, cb7, cb8, cb9
60 static __thread void (*fp) (void) __attribute__ ((tls_model ("local-exec")));
63 static sem_t s;
66 #define THE_SIG SIGUSR1
67 static void
68 handler (int sig)
70 if (sig != THE_SIG)
72 write (STDOUT_FILENO, "wrong signal\n", 13);
73 _exit (1);
76 fp ();
78 if (sem_post (&s) != 0)
80 write (STDOUT_FILENO, "sem_post failed\n", 16);
81 _exit (1);
86 static pthread_barrier_t b;
88 #define TOTAL_SIGS 1000
89 static int nsigs;
92 static void *
93 tf (void *arg)
95 fp = arg;
97 pthread_barrier_wait (&b);
99 pthread_barrier_wait (&b);
101 if (nsigs != TOTAL_SIGS)
103 puts ("barrier_wait prematurely returns");
104 exit (1);
107 return NULL;
109 #endif
112 do_test (void)
114 #if !HAVE___THREAD
116 puts ("No __thread support in compiler, test skipped.");
118 return 0;
119 #else
121 if (pthread_barrier_init (&b, NULL, N + 1) != 0)
123 puts ("barrier_init failed");
124 exit (1);
127 if (sem_init (&s, 0, 0) != 0)
129 puts ("sem_init failed");
130 exit (1);
133 struct sigaction sa;
134 sa.sa_handler = handler;
135 sigemptyset (&sa.sa_mask);
136 sa.sa_flags = 0;
137 if (sigaction (THE_SIG, &sa, NULL) != 0)
139 puts ("sigaction failed");
140 exit (1);
143 pthread_attr_t a;
145 if (pthread_attr_init (&a) != 0)
147 puts ("attr_init failed");
148 exit (1);
151 if (pthread_attr_setstacksize (&a, 1 * 1024 * 1024) != 0)
153 puts ("attr_setstacksize failed");
154 return 1;
157 int i;
158 for (i = 0; i < N; ++i)
159 if (pthread_create (&th[i], &a, tf, cbs[i]) != 0)
161 puts ("pthread_create failed");
162 exit (1);
165 if (pthread_attr_destroy (&a) != 0)
167 puts ("attr_destroy failed");
168 exit (1);
171 pthread_barrier_wait (&b);
173 sigset_t ss;
174 sigemptyset (&ss);
175 sigaddset (&ss, THE_SIG);
176 if (pthread_sigmask (SIG_BLOCK, &ss, NULL) != 0)
178 puts ("pthread_sigmask failed");
179 exit (1);
182 /* Start sending signals. */
183 for (i = 0; i < TOTAL_SIGS; ++i)
185 if (kill (getpid (), THE_SIG) != 0)
187 puts ("kill failed");
188 exit (1);
191 if (TEMP_FAILURE_RETRY (sem_wait (&s)) != 0)
193 puts ("sem_wait failed");
194 exit (1);
197 ++nsigs;
200 pthread_barrier_wait (&b);
202 for (i = 0; i < N; ++i)
203 if (pthread_join (th[i], NULL) != 0)
205 puts ("join failed");
206 exit (1);
209 return 0;
210 #endif
214 #define TEST_FUNCTION do_test ()
215 #include "../test-skeleton.c"