+
+bool bus_has_subscriber(Manager *m) {
+ Iterator i;
+ DBusConnection *c;
+
+ assert(m);
+
+ SET_FOREACH(c, m->bus_connections_for_dispatch, i)
+ if (bus_connection_has_subscriber(m, c))
+ return true;
+
+ SET_FOREACH(c, m->bus_connections, i)
+ if (bus_connection_has_subscriber(m, c))
+ return true;
+
+ return false;
+}
+
+bool bus_connection_has_subscriber(Manager *m, DBusConnection *c) {
+ assert(m);
+ assert(c);
+
+ return !set_isempty(BUS_CONNECTION_SUBSCRIBED(m, c));
+}