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Diffstat (limited to 'nptl/tst-cond16.c')
-rw-r--r-- | nptl/tst-cond16.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/nptl/tst-cond16.c b/nptl/tst-cond16.c new file mode 100644 index 0000000000..00c27eced6 --- /dev/null +++ b/nptl/tst-cond16.c @@ -0,0 +1,105 @@ +/* Copyright (C) 2004 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek <jakub@redhat.com>, 2004. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <errno.h> +#include <pthread.h> +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +pthread_cond_t cv = PTHREAD_COND_INITIALIZER; +pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; +bool n, exiting; +FILE *f; +int count; + +void * +tf (void *dummy) +{ + bool loop = true; + + while (loop) + { + pthread_mutex_lock (&lock); + while (n && !exiting) + pthread_cond_wait (&cv, &lock); + n = true; + pthread_mutex_unlock (&lock); + + fputs (".", f); + + pthread_mutex_lock (&lock); + n = false; + if (exiting) + loop = false; +#ifdef UNLOCK_AFTER_BROADCAST + pthread_cond_broadcast (&cv); + pthread_mutex_unlock (&lock); +#else + pthread_mutex_unlock (&lock); + pthread_cond_broadcast (&cv); +#endif + } + + return NULL; +} + +int +do_test (void) +{ + f = fopen ("/dev/null", "w"); + if (f == NULL) + { + printf ("couldn't open /dev/null, %m\n"); + return 1; + } + + count = sysconf (_SC_NPROCESSORS_ONLN); + if (count <= 0) + count = 1; + count *= 4; + + pthread_t th[count]; + int i, ret; + for (i = 0; i < count; ++i) + if ((ret = pthread_create (&th[i], NULL, tf, NULL)) != 0) + { + errno = ret; + printf ("pthread_create %d failed: %m\n", i); + return 1; + } + + struct timespec ts = { .tv_sec = 20, .tv_nsec = 0 }; + while (nanosleep (&ts, &ts) != 0); + + pthread_mutex_lock (&lock); + exiting = true; + pthread_mutex_unlock (&lock); + + for (i = 0; i < count; ++i) + pthread_join (th[i], NULL); + + fclose (f); + return 0; +} + +#define TEST_FUNCTION do_test () +#define TIMEOUT 40 +#include "../test-skeleton.c" |