1 /* Copyright (C) 2004 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 pthread_cond_t cv
= PTHREAD_COND_INITIALIZER
;
28 pthread_mutex_t lock
= PTHREAD_MUTEX_INITIALIZER
;
30 int fd
, count
, spins
, nn
;
35 pthread_mutex_lock (&lock
);
41 if ((spins
++ % 1000) == 0)
43 pthread_mutex_unlock (&lock
);
45 pthread_mutex_lock (&lock
);
46 int njobs
= rand () % (count
+ 1);
48 if ((rand () % 30) == 0)
49 pthread_cond_broadcast (&cv
);
52 pthread_cond_signal (&cv
);
55 pthread_cond_broadcast (&cv
);
61 while (!nn
&& !exiting
)
62 pthread_cond_wait (&cv
, &lock
);
64 pthread_mutex_unlock (&lock
);
66 pthread_mutex_lock (&lock
);
70 pthread_mutex_unlock (&lock
);
77 fd
= open ("/dev/null", O_WRONLY
);
80 printf ("couldn't open /dev/null, %m\n");
84 count
= sysconf (_SC_NPROCESSORS_ONLN
);
89 pthread_t th
[count
+ 1];
92 for (i
= 0; i
<= count
; ++i
)
93 if ((ret
= pthread_create (&th
[i
], NULL
, tf
, (void *) (long) i
)) != 0)
96 printf ("pthread_create %d failed: %m\n", i
);
100 struct timespec ts
= { .tv_sec
= 20, .tv_nsec
= 0 };
101 while (nanosleep (&ts
, &ts
) != 0);
103 pthread_mutex_lock (&lock
);
105 pthread_mutex_unlock (&lock
);
107 for (i
= 0; i
< count
; ++i
)
108 pthread_join (th
[i
], NULL
);
114 #define TEST_FUNCTION do_test ()
116 #include "../test-skeleton.c"