anchor.diff:  %%====================================================================
   
   %%--------------------------------------------------------------------
  -%% Function: select_chunks(Handle, PieceSet, StatePid, Num) -> ...
  +%% Function: pick_chunks(Handle, PieceSet, StatePid, Num) -> ...
   %% Description: Return some chunks for downloading
   %%--------------------------------------------------------------------
   pick_chunks(Pid, Handle, PieceSet, Num) ->
  
positive.code: 	  end),
      case Res of
  	full ->
  	    store_piece(Id, PieceNum, FSPid, PeerGroupPid),
  	    ok;
  	ok ->
  	    ok
      end.
  
negative.code: 				 Data) of
  	ok ->
  	    {atomic, ok} = etorrent_torrent:statechange(Id,
  							{subtract_left, DataSize}),
  	    {atomic, ok} = etorrent_torrent:statechange(Id,
  							{add_downloaded, DataSize}),
  	    ok = etorrent_t_peer_group:broadcast_have(MasterPid, PieceNumber),
  