+struct ust_registry_channel *ust_registry_channel_find(
+ struct ust_registry_session *session, uint64_t key);
+int ust_registry_channel_add(struct ust_registry_session *session,
+ uint64_t key);
+void ust_registry_channel_del_free(struct ust_registry_session *session,
+ uint64_t key);
+
+int ust_registry_session_init(struct ust_registry_session **sessionp,