--- /dev/null
+/* GStreamer
+ * Copyright (C) <2009> Wim Taymans <wim taymans at gmail dot com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <stdlib.h>
+#include <gst/gst.h>
+
+#define MAX_THREADS 100
+
+static gboolean running = TRUE;
+static gint count = 0;
+
+static void *
+run_test (void *user_data)
+{
+ gint prev;
+ GstClock *sysclock = GST_CLOCK_CAST (user_data);
+
+ while (running) {
+ gst_clock_get_time (sysclock);
+ prev = g_atomic_int_exchange_and_add (&count, 1);
+ if (prev == G_MAXINT)
+ g_warning ("overflow");
+ }
+ g_thread_exit (NULL);
+ return NULL;
+}
+
+gint
+main (gint argc, gchar * argv[])
+{
+ GThread *threads[MAX_THREADS];
+ gint num_threads;
+ gint t;
+ GstClock *sysclock;
+
+ gst_init (&argc, &argv);
+
+ if (argc != 2) {
+ g_print ("usage: %s <num_threads>\n", argv[0]);
+ exit (-1);
+ }
+
+ num_threads = atoi (argv[1]);
+
+ sysclock = gst_system_clock_obtain ();
+
+ for (t = 0; t < num_threads; t++) {
+ GError *error = NULL;
+
+ threads[t] = g_thread_create (run_test, sysclock, TRUE, &error);
+ if (error) {
+ printf ("ERROR: g_thread_create() %s\n", error->message);
+ exit (-1);
+ }
+ }
+ printf ("main(): Created %d threads.\n", t);
+
+ /* run for 5 seconds */
+ g_usleep (G_USEC_PER_SEC * 5);
+
+ printf ("main(): Stopping threads...\n");
+
+ running = FALSE;
+
+ for (t = 0; t < num_threads; t++) {
+ g_thread_join (threads[t]);
+ }
+
+ g_print ("performed %d get_time operations\n", count);
+
+ gst_object_unref (sysclock);
+
+ return 0;
+}