question: protected AlgoPullTight ( RoutingBoard p_board , NetNosList p_only_net_no_arr , ThreadStoppable p_stoppable_thread , BrdKeepPoint p_keep_point , int p_min_move_dist ) { r_board = p_board ; only_net_no_arr = p_only_net_no_arr ; stoppable = p_stoppable_thread ; keep_point = p_keep_point ; min_move_dist = Math . max ( p_min_move_dist , 10 ) ; }
target:  Can only be created by subclasses