anchor.diff:    
   running(Node) ->
     gen_server:call({sync_manager, Node}, running).
  +  
  +diffs() ->
  +  gen_server:call(sync_manager, diffs).
  +  
  +diffs(Node) ->
  +  gen_server:call({sync_manager, Node}, diffs).
   
   %%====================================================================
   %% gen_server callbacks
  
positive.code: %%--------------------------------------------------------------------
  %%% Internal functions
  %%--------------------------------------------------------------------
  
negative.code: -behaviour(gen_server).
  
  %% API
  -export([start_link/0, sync/5, done/1, running/0, running/1, diffs/0, diffs/1]).
  
  %% gen_server callbacks
  -export([init/1, handle_call/3, handle_cast/2, handle_info/2,
           terminate/2, code_change/3]).
  
  -record(state, {running,diffs}).
  
  %%====================================================================
  %% API
  