+int cmd_data_pending(struct ltt_session *session);
+
+/* Snapshot */
+int cmd_snapshot_add_output(struct ltt_session *session,
+ struct lttng_snapshot_output *output, uint32_t *id);
+int cmd_snapshot_del_output(struct ltt_session *session,
+ struct lttng_snapshot_output *output);
+int cmd_snapshot_record(struct ltt_session *session,
+ struct lttng_snapshot_output *output, int wait);