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// -*- C++ -*-
// $Id$
// ============================================================================
//
// = LIBRARY
// TAO/orbsvcs/Time_Service
//
// = FILENAME
// TAO_UTO.h
//
// = DESCRIPTION
// This class implements the CosTime::UTO IDL interface.
//
// = AUTHOR
// Vishal Kachroo <vishal@cs.wustl.edu>
//
// ============================================================================
#ifndef TAO_UTO_H
#define TAO_UTO_H
#include "orbsvcs/TimeServiceS.h"
class TAO_ORBSVCS_Export TAO_UTO : public POA_CosTime::UTO
{
// = TITLE
// Universal Time Object Implementation.
//
// = DESCRIPTION
// This is an encapsulation of the time. It provides the following
// operations on basic time.
//
// - Construction of a UTO from piece parts, and extraction of the
// piece parts from a UTO. The piece parts are the readonly
// attributes :
// time
// inaccuracy
// time displacement factor
// structure with all the above.
//
// - Comparison of time.
//
// - Conversion from relative to absolute time, and conversion to
// an interval (TIO).
public:
// = Initialization and termination methods.
TAO_UTO (TimeBase::TimeT time,
TimeBase::InaccuracyT inaccuracy,
TimeBase::TdfT tdf);
// Constructor.
~TAO_UTO (void);
// Destructor.
virtual TimeBase::TimeT time (CORBA::Environment &env);
// For the readonly attribute <time>.
virtual TimeBase::InaccuracyT inaccuracy (CORBA::Environment &env);
// For the readonly attribute <inaccuracy>.
virtual TimeBase::TdfT tdf (CORBA::Environment &env);
// For the readonly attribute <tdf>, which is the "time displacement
// factor".
virtual TimeBase::UtcT utc_time (CORBA::Environment &env);
// For the readonly attribute <utc_time>.
CosTime::UTO_ptr absolute_time (CORBA::Environment &env);
// Absolute time = Relative time + Base time.
// ?? Find out more about the Base Time, UTC and
// Distributed Time Sync. Algos. [3
CosTime::TimeComparison compare_time (CosTime::ComparisonType comparison_type,
CosTime::UTO_ptr uto,
CORBA::Environment &env);
// Compares the time contained in the object with the time in the
// supplied uto according to the supplied comparison type.
CosTime::TIO_ptr time_to_interval (CosTime::UTO_ptr,
CORBA::Environment &env);
// Returns a TIO representing the time interval between the time in
// the object and the time in the UTO passed as a parameter. The
// interval returned is the interval between the mid-points of the
// two UTOs. Inaccuracies are ignored. Note the result of this
// operation is meaningless if the base times of UTOs are different.
CosTime::TIO_ptr interval (CORBA::Environment &env);
// Returns a TIO object representing the error interval around the
// time value in the UTO.
private:
TimeBase::UtcT attr_utc_time_;
// The readonly attribute structure having the time, inaccuracy and
// displacement. The get methods for other readonly attributes
// (time, inaccuracy, tdf) defined in the IDL use the members of
// this structure and hence need not have separate member variables
// for them.
};
#endif /* TAO_UTO_H */
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