lbninfo Node1 lbninfo + currentevent + nevt + magic + noalgps + j40ps + written_j40 + written_no_j40 + lbninfo() + makestreammap() + streameventstring() Node2 std::map< int, int > + keys + elements Node2->Node1 +wantedmap Node3 std::vector< int > + elements Node3->Node1 +trigevt +trigmap Node4 std::map< int, std ::vector< int > > + keys Node3->Node4 +elements Node4->Node1 +streammap