:- protocol(timep).
:- info([
version is 1.0,
author is 'Paulo Moura',
date is 2000/7/24,
comment is 'Time protocol.']).
:- public(now/3).
:- mode(now(-integer, -integer, -integer), one).
:- info(now/3, [
comment is 'Returns current time.',
argnames is ['Hours', 'Mins', 'Secs']]).
:- public(cpu_time/1).
:- mode(cpu_time(-number), one).
:- info(cpu_time/1,
[comment is 'Returns the current cpu time.',
argnames is ['Time']]).
:- public(valid/3).
:- mode(valid(+integer, +integer, +integer), zero_or_one).
:- info(valid/3, [
comment is 'True if the arguments represent a valid time value.',
:- end_protocol.