anchor.diff:                  {send, self, uuid:uuid_to_string(Session#t_session.id)}
               };
           false ->
  -            {ok, Client, {send, self, ?ERROR}}
  +            {ok, Client, {send, self, ?R_ERROR}}
       end;
   
   handle(#s_client{} = Client, ?C_AUTH_LOGOUT, [Id]) ->
  
positive.code:     {ok, Client, {send, self, "ok"}};
  
  handle(#s_client{} = Client, _Command, _Args) ->
      {ok, Client, none}.
  
negative.code:                                      Session#t_session.token),
              db:delete_session(Session),
  
              {ok, Client, {send, self, ?R_SUCCESS}};
  
          [] ->
              {ok, Client, {send, self, ?R_ERROR}}
      end;
  
  handle(#s_client{} = Client, ?C_ROOM_LIST, []) ->
  