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-rw-r--r--nptl/tst-mutex7.c97
1 files changed, 97 insertions, 0 deletions
diff --git a/nptl/tst-mutex7.c b/nptl/tst-mutex7.c
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+/* Copyright (C) 2002 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+ 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 <pthread.h>
+#include <stdio.h>
+#include <time.h>
+
+
+static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
+
+
+#define ROUNDS 1000
+#define N 100
+
+
+static void *
+tf (void *arg)
+{
+ int nr = (long int) arg;
+ int cnt;
+ struct timespec ts = { .tv_sec = 0, .tv_nsec = 11000 };
+
+ for (cnt = 0; cnt < ROUNDS; ++cnt)
+ {
+ if (pthread_mutex_lock (&lock) != 0)
+ {
+ printf ("thread %d: failed to get the lock\n", nr);
+ return (void *) 1l;
+ }
+
+ if (pthread_mutex_unlock (&lock) != 0)
+ {
+ printf ("thread %d: failed to release the lock\n", nr);
+ return (void *) 1l;
+ }
+
+ nanosleep (&ts, NULL);
+ }
+
+ return NULL;
+}
+
+
+static int
+do_test (void)
+{
+ pthread_t th[N];
+ int cnt;
+
+ if (pthread_mutex_lock (&lock) != 0)
+ {
+ puts ("locking in parent failed");
+ return 1;
+ }
+
+ for (cnt = 0; cnt < N; ++cnt)
+ if (pthread_create (&th[cnt], NULL, tf, (void *) (long int) cnt) != 0)
+ {
+ printf ("creating thread %d failed\n", cnt);
+ return 1;
+ }
+
+ if (pthread_mutex_unlock (&lock) != 0)
+ {
+ puts ("unlocking in parent failed");
+ return 1;
+ }
+
+ for (cnt = 0; cnt < N; ++cnt)
+ if (pthread_join (th[cnt], NULL) != 0)
+ {
+ printf ("joining thread %d failed\n", cnt);
+ return 1;
+ }
+
+ return 0;
+}
+
+#define TIMEOUT 60
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"