#include <stdint.h>
+namespace lttng {
+namespace sessiond {
+namespace ust {
+class registry_session;
+} /* namespace ust */
+} /* namespace sessiond */
+} /* namespace lttng */
+
int ust_consumer_ask_channel(struct ust_app_session *ua_sess,
struct ust_app_channel *ua_chan,
struct consumer_output *consumer,