-static struct bt_graph *graph;
-static struct bt_private_connection_private_notification_iterator *cur_notif_iter;
-static struct bt_private_stream_class *src_stream_class;
-static struct bt_private_event_class *src_event_class;
-static struct bt_private_stream *src_stream1;
-static struct bt_private_stream *src_stream2;
-static struct bt_private_packet *src_stream1_packet1;
-static struct bt_private_packet *src_stream1_packet2;
-static struct bt_private_packet *src_stream2_packet1;
-static struct bt_private_packet *src_stream2_packet2;
-static struct bt_stream *pub_src_stream1;
-static struct bt_stream *pub_src_stream2;
-static struct bt_packet *pub_src_stream1_packet1;
-static struct bt_packet *pub_src_stream1_packet2;
-static struct bt_packet *pub_src_stream2_packet1;
-static struct bt_packet *pub_src_stream2_packet2;
+static struct bt_private_graph *graph;
+static struct bt_stream_class *src_stream_class;
+static struct bt_event_class *src_event_class;
+static struct bt_stream *src_stream1;
+static struct bt_stream *src_stream2;
+static struct bt_packet *src_stream1_packet1;
+static struct bt_packet *src_stream1_packet2;
+static struct bt_packet *src_stream2_packet1;
+static struct bt_packet *src_stream2_packet2;
+static const struct bt_stream *pub_src_stream1;
+static const struct bt_stream *pub_src_stream2;
+static const struct bt_packet *pub_src_stream1_packet1;
+static const struct bt_packet *pub_src_stream1_packet2;
+static const struct bt_packet *pub_src_stream2_packet1;
+static const struct bt_packet *pub_src_stream2_packet2;