//Editor-Info: -*- C++ -*-
//
//Subject: TOVE project / UNI
//
//File: unirsnstate.h
//
//Version: $Revision: 1.8 $
//
//State: $State: Exp $
//
//Date: $Date: 1998/08/05 05:22:07 $
//
//Organisation:
//      Helsinki University of Technology
//      Laboratory of Telecommunications Software and Multimedia
//
//Author:
//      Jari Katajavuori
//
//Description:
//
//
//Copyright:
//
//
//Licence:
//
//
//History: 

#ifndef __UNI_UNIRSNSTATE_H__
#define __UNI_UNIRSNSTATE_H__

#include "pf/state.h"

#include "uniprimitives.h"
#include "unipdu.h"
#include "unitimeouts.h"

class pfProtocol;

//
// Class: uniRSNState
//
// Description:
//      Base class for Null & Restart request states.
//

class uniRSNState : public uniDownRSNInputs,
                    public uniRSNMessageInputs,
                    public uniStatusMessageInputs,
                    public uniRSNTimeoutInputs,
                    public pfState
{
    public:
        virtual void uniRESETreqAct(
            uniRESETreq *message_,
            pfProtocol *protocol_);
        virtual void uniSTATUSpduAct(
            uniSTATUSpdu *message_,
            pfProtocol *protocol_);
        virtual void uniRESTART_ACKpduAct(
            uniRESTART_ACKpdu *message_,
            pfProtocol *protocol_);
        
        virtual void uniT316timeoutAct(
            pfProtocol *protocol_);
        
    protected:
        uniRSNState(void);
        virtual ~uniRSNState(void);
};

//
// Class: uniRSNNullState
//
// Description:
//      State for waiting for RESETreq.
//

class uniRSNNullState : public uniRSNState
{
    public:
        static uniRSNNullState *instance(void);
        
        virtual void uniRESETreqAct(
            uniRESETreq *message_,
            pfProtocol *protocol_);
        
    protected:
        uniRSNNullState(void);
        virtual ~uniRSNNullState(void);

    private:
        static uniRSNNullState *_only;
};

//
// Class: uniRSNRestartRequestState
//
// Description:
//      RESTART sent, wait for response or timer expiry.
//

class uniRSNRestartRequestState : public uniRSNState
{
    public:
        static uniRSNRestartRequestState *instance(void);

        virtual void uniSTATUSpduAct(
            uniSTATUSpdu *message_,
            pfProtocol *protocol_);
        virtual void uniRESTART_ACKpduAct(
            uniRESTART_ACKpdu *message_,
            pfProtocol *protocol_);
        
        virtual void uniT316timeoutAct(pfProtocol *protocol_);
        
    protected:
        uniRSNRestartRequestState(void);
        virtual ~uniRSNRestartRequestState(void);

    private:
        static uniRSNRestartRequestState *_only;
};

#endif // __UNI_UNIRSNSTATE_H__