1 /* Copyright (C) 2004-2016 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
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, see
17 <http://www.gnu.org/licenses/>. */
27 static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
28 static pthread_cond_t cond2 = PTHREAD_COND_INITIALIZER;
29 static pthread_mutex_t mut = PTHREAD_MUTEX_INITIALIZER;
30 static pthread_barrier_t b;
37 for (i = 0; i < ROUNDS; ++i)
39 pthread_mutex_lock (&mut);
42 pthread_cond_signal (&cond2);
46 gettimeofday (&tv, NULL);
48 /* Wait three seconds. */
49 ts.tv_sec = tv.tv_sec + 3;
50 ts.tv_nsec = tv.tv_usec * 1000;
51 pthread_cond_timedwait (&cond, &mut, &ts);
53 pthread_cond_wait (&cond, &mut);
56 pthread_mutex_unlock (&mut);
58 int err = pthread_barrier_wait (&b);
59 if (err != 0 && err != PTHREAD_BARRIER_SERIAL_THREAD)
61 puts ("child: barrier_wait failed");
65 err = pthread_barrier_wait (&b);
66 if (err != 0 && err != PTHREAD_BARRIER_SERIAL_THREAD)
68 puts ("child: barrier_wait failed");
80 if (pthread_barrier_init (&b, NULL, N + 1) != 0)
82 puts ("barrier_init failed");
86 pthread_mutex_lock (&mut);
90 for (i = 0; i < N; ++i)
91 if ((err = pthread_create (&th[i], NULL, tf, NULL)) != 0)
93 printf ("cannot create thread %d: %s\n", i, strerror (err));
97 for (i = 0; i < ROUNDS; ++i)
99 pthread_cond_wait (&cond2, &mut);
102 pthread_mutex_unlock (&mut);
105 pthread_cond_broadcast (&cond);
107 for (j = 0; j < N; ++j)
108 pthread_cond_signal (&cond);
111 for (j = 0; j < (i / 8) % N; ++j)
112 pthread_cond_signal (&cond);
113 pthread_cond_broadcast (&cond);
117 pthread_mutex_unlock (&mut);
119 err = pthread_cond_destroy (&cond);
122 printf ("pthread_cond_destroy failed: %s\n", strerror (err));
126 /* Now clobber the cond variable which has been successfully
128 memset (&cond, (char) i, sizeof (cond));
130 err = pthread_barrier_wait (&b);
131 if (err != 0 && err != PTHREAD_BARRIER_SERIAL_THREAD)
133 puts ("parent: barrier_wait failed");
137 pthread_mutex_lock (&mut);
139 err = pthread_barrier_wait (&b);
140 if (err != 0 && err != PTHREAD_BARRIER_SERIAL_THREAD)
142 puts ("parent: barrier_wait failed");
147 err = pthread_cond_init (&cond, NULL);
150 printf ("pthread_cond_init failed: %s\n", strerror (err));
155 for (i = 0; i < N; ++i)
156 if ((err = pthread_join (th[i], NULL)) != 0)
158 printf ("failed to join thread %d: %s\n", i, strerror (err));
168 #define TEST_FUNCTION do_test ()
169 #include "../test-skeleton.c"