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-rw-r--r--htl/tests/test-1.c68
1 files changed, 68 insertions, 0 deletions
diff --git a/htl/tests/test-1.c b/htl/tests/test-1.c
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+/* Test mutexes.
+ Copyright (C) 2000-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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, see
+ <http://www.gnu.org/licenses/>. */
+
+#define _GNU_SOURCE
+
+#include <pthread.h>
+#include <assert.h>
+#include <unistd.h>
+#include <error.h>
+#include <errno.h>
+#include <stdio.h>
+
+#define THREADS 500
+
+void *
+foo (void *arg)
+{
+ pthread_mutex_t *mutex = arg;
+ pthread_mutex_lock (mutex);
+ pthread_mutex_unlock (mutex);
+ return mutex;
+}
+
+int
+main (int argc, char **argv)
+{
+ int i;
+ error_t err;
+ pthread_t tid[THREADS];
+ pthread_mutex_t mutex[THREADS];
+
+ for (i = 0; i < THREADS; i++)
+ {
+ pthread_mutex_init (&mutex[i], 0);
+ pthread_mutex_lock (&mutex[i]);
+ err = pthread_create (&tid[i], 0, foo, &mutex[i]);
+ if (err)
+ error (1, err, "pthread_create");
+ sched_yield ();
+ }
+
+ for (i = THREADS - 1; i >= 0; i--)
+ {
+ void *ret;
+ pthread_mutex_unlock (&mutex[i]);
+ err = pthread_join (tid[i], &ret);
+ if (err)
+ error (1, err, "pthread_join");
+ assert (ret == &mutex[i]);
+ }
+
+ return 0;
+}