fedtime.hh

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// -*- mode:C++ ; tab-width:4 ; c-basic-offset:4 ; indent-tabs-mode:nil -*-
// ----------------------------------------------------------------------------
// CERTI - HLA RunTime Infrastructure
// Copyright (C) 2002, 2003  ONERA
//
// This file is part of CERTI-libRTI
//
// CERTI-libRTI is free software ; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public License
// as published by the Free Software Foundation ; either version 2 of
// the License, or (at your option) any later version.
//
// CERTI-libRTI is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY ; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this program ; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA
//
// $Id: fedtime.hh,v 3.2 2003/02/19 17:20:28 breholee Exp $
// ----------------------------------------------------------------------------

#ifndef _CERTI_FED_TIME_HH
#define _CERTI_FED_TIME_HH

#include <iostream>

#include <sys/types.h>
#include <cstring>
#include <stdio.h>

#include "baseTypes.hh"
#include "RTItypes.hh"

using namespace std ;

namespace certi {

class FedTime {
public:
    virtual ~FedTime();
    virtual void setZero() = 0 ;
    virtual Boolean isZero() = 0 ;
    virtual void setEpsilon() = 0 ;
    virtual void setPositiveInfinity() = 0 ;
    virtual Boolean isPositiveInfinity() = 0 ;

    virtual FedTime& operator+= (const FedTime&)
        throw (InvalidFederationTime) = 0 ;

    virtual FedTime& operator-= (const FedTime&)
        throw (InvalidFederationTime) = 0 ;

    virtual Boolean operator<= (const FedTime&) const
        throw (InvalidFederationTime) = 0 ;

    virtual Boolean operator<(const FedTime&) const
        throw (InvalidFederationTime) = 0 ;

    virtual Boolean operator>= (const FedTime&) const
        throw (InvalidFederationTime) = 0 ;

    virtual Boolean operator>(const FedTime&) const
        throw (InvalidFederationTime) = 0 ;

    virtual Boolean operator== (const FedTime&) const
        throw (InvalidFederationTime) = 0 ;

    virtual FedTime& operator= (const FedTime&)
        throw (InvalidFederationTime) = 0 ;

    virtual int encodedLength() const = 0 ;
    virtual void encode(char *buff) const = 0 ;
    virtual int getPrintableLength() const = 0 ;
    virtual void getPrintableString(char *) = 0 ;
};

class FedTimeFactory {
public:
    static FedTime* makeZero() throw (MemoryExhausted);
    static FedTime* decode(const char *buf) throw (MemoryExhausted);
};

class RTIfedTime : public FedTime 
{
public:
    // Constructors and Destructors
    RTIfedTime();
    RTIfedTime(const Double&);
    RTIfedTime(const FedTime&);
    RTIfedTime(const RTIfedTime&);
    virtual ~RTIfedTime();

    // Overloaded functions from FedTime
    void setZero();
    Boolean isZero();
    void setEpsilon();
    void setPositiveInfinity();
    Boolean isPositiveInfinity();
    int encodedLength() const ;
    void encode(char *buff) const ;
    int getPrintableLength() const ;
    void getPrintableString(char *);

    // Overloaded operators from FedTime
    FedTime& operator+= (const FedTime&) throw (InvalidFederationTime);
    FedTime& operator-= (const FedTime&) throw (InvalidFederationTime);
    Boolean operator<= (const FedTime&) const throw (InvalidFederationTime);
    Boolean operator<(const FedTime&) const throw (InvalidFederationTime);
    Boolean operator>= (const FedTime&) const throw (InvalidFederationTime);
    Boolean operator>(const FedTime&) const throw (InvalidFederationTime);
    Boolean operator== (const FedTime&) const throw (InvalidFederationTime);
    FedTime& operator= (const FedTime&) throw (InvalidFederationTime);

    // Implementation functions
    Double getTime() const ;

    // Implementation operators
    Boolean operator!= (const FedTime&) const throw (InvalidFederationTime);
    FedTime& operator= (const RTIfedTime&) throw (InvalidFederationTime);
    FedTime& operator*= (const FedTime&) throw (InvalidFederationTime);
    FedTime& operator/= (const FedTime&) throw (InvalidFederationTime);
    RTIfedTime operator+(const FedTime&) throw (InvalidFederationTime);
    RTIfedTime operator-(const FedTime&) throw (InvalidFederationTime);
    RTIfedTime operator*(const FedTime&) throw (InvalidFederationTime);
    RTIfedTime operator/(const FedTime&) throw (InvalidFederationTime);
    // Boolean operator== (const Double&) const throw (InvalidFederationTime);

    // Implementation friends
    friend ostream& operator<<(ostream&, const FedTime&);

    // Implementation member variables
    Double _fedTime ;
    Double _zero ;
    Double _epsilon ;
    Double _positiveInfinity ;

    // private inline function
    inline void initZero() {
        _zero = _fedTime == 0?0:1 ;
    }
};

// Global operators
RTIfedTime operator+(const Double&, const FedTime&)
    throw (InvalidFederationTime);
RTIfedTime operator-(const Double&, const FedTime&)
    throw (InvalidFederationTime);
RTIfedTime operator*(const Double&, const FedTime&)
    throw (InvalidFederationTime);
RTIfedTime operator/(const Double&, const FedTime&)
    throw (InvalidFederationTime);

}

#endif // _CERTI_FED_TIME_HH

// $Id: fedtime.hh,v 3.2 2003/02/19 17:20:28 breholee Exp $