anchor.diff:  %% @hidden
   auth_query1(_Start, _End, _Protocol, _Types, _ReqAttrsMatch, _RespAttrsMatch,
   		eof, Acc) ->
  -	lists:reverse(Acc);
  +	{eof, lists:reverse(Acc)};
   auth_query1(_Start, _End, _Protocol, _Types, _ReqAttrsMatch, _RespAttrsMatch,
   		{error, Reason}, _Acc) ->
  -	exit(Reason);
  +	{error, Reason};
   %% @hidden
   auth_query1(Start, End, '_', '_', ReqAttrsMatch, RespAttrsMatch,
   		{Cont, [{TS, _, _, _, _, _, _, _, _} | _] = Chunk}, Acc)
  
positive.code: 			{error, Reason}
  	end.
  
  -spec auth_log(Protocol, Server, Client, Type, RequestAttributes,
  		ResponseAttributes) -> Result
  	when
  
negative.code: %% 	`Protocol', `Types', `ReqAttrsMatch' `ResAttrsMatch'  may be
  %% 	'_' which matches any value.
  %% 
  %% 	Returns a new `Continuation' and a list of matching access events.
  %% 	Successive calls use the new `Continuation' to read more events.
  %%
  %%
  auth_query(Continuation, {{_, _, _}, {_, _, _}} = Start, End, Protocol,
  		Types, ReqAttrsMatch, RespAttrsMatch) ->
  	Seconds = calendar:datetime_to_gregorian_seconds(Start) - ?EPOCH,
  	auth_query(Continuation, Seconds * 1000, End, Protocol, Types,
  			ReqAttrsMatch, RespAttrsMatch);
  auth_query(Continuation, Start, {{_, _, _}, {_, _, _}} = End, Protocol,
  		Types, ReqAttrsMatch, RespAttrsMatch) ->
  	Seconds = calendar:datetime_to_gregorian_seconds(End) - ?EPOCH,
  	auth_query(Continuation, Start, Seconds * 1000 + 999, Protocol, Types,
  			ReqAttrsMatch, RespAttrsMatch);
  auth_query(start, Start, End, Protocol, Types,
  		ReqAttrsMatch, RespAttrsMatch)
  		when is_integer(Start), is_integer(End) ->
  	auth_query(start, End, Protocol, Types, ReqAttrsMatch, RespAttrsMatch,
  			[], disk_log:bchunk(?AUTHLOG, start)).
  auth_query(Continuation, Start, End, Protocol, Types,
  		ReqAttrsMatch, RespAttrsMatch)
  		when is_integer(Start), is_integer(End) ->
  	auth_query1(Continuation, End, Protocol, Types, ReqAttrsMatch,
  			RespAttrsMatch, disk_log:chunk(?AUTHLOG, Continuation), []).
  
  %% @hidden
  auth_query(Start, End, Protocol, Types, ReqAttrsMatch, RespAttrsMatch,
  