anchor.diff:      sets:to_list(Active);
   decode(Active) ->
       sets:to_list(Active).
  +
  +%% @doc Debugging.
  +-spec connections() -> {ok, list({node_spec(), pid()})}. 
  +connections() ->
  +    gen_server:call(?MODULE, connections, infinity).
   
   %%%===================================================================
   %%% gen_server callbacks
  
positive.code: %% debug.
  -export([active/0,
           active/1,
           passive/0]).
  
  %% gen_server callbacks
  -export([init/1,
  
negative.code:                                  passive=Passive,
                                   connections=Connections}
              end,
  
      lager:info("Node ~p active view: ~p",
                 [Myself, members(State#state.active)]),
  
      {noreply, State};
  
  