anchor.diff:  
   -behaviour(gen_server).
   
  +-include("scalaris.hrl").
  +
   %% API
   -export([start_link/0]).
   
  
positive.code: %% Function: dump() -> {gb_tree:gb_trees(), {Date, Time}}
  %% Description: gets the logging state
  %%--------------------------------------------------------------------
  dump() ->
      gen_server:call(?MODULE, {dump}).
  
  
negative.code: %% Function: start_link() -> {ok,Pid} | ignore | {error,Error}
  %% Description: Starts the server
  %%--------------------------------------------------------------------
  -spec start_link() -> {ok,pid()} | ignore | {error, any()}.
  start_link() ->
      gen_server:start_link({local, ?MODULE}, ?MODULE, [], []).
  
  