anchor.diff:          N = lists:delete(CState, CList),
           [{Id, N} | Acc]
       end, [], Chans).
  +
  +get_acctrl() ->
  +    {ok, V} = application:get_env(supercast, acctrl_module), V.
  
positive.code:     Chans = del_subscriber(CState, S#state.chans),
      {reply, ok, S#state{chans = Chans}};
  
  handle_call(get_acctrl, _F, #state{acctrl = Acctrl} = S) ->
      {reply, {ok, Acctrl}, S};
  
  handle_call(dump, _F, S) ->
      {reply, {ok, S}, S};
  
  
negative.code: -export([multicast_msg/2, unicast_msg/2, subscribe_stage1/2, subscribe_stage2/2,
      subscribe_stage3/2, unsubscribe/2, client_disconnect/1, delete_channel/1]).
  
  -record(state, {chans}).
  
  -define(CHAN_TIMEOUT, 1000).
  
  