//Editor-Info: -*- C++ -*-
//
//Subject: TOVE project/CC
//
//File: ccostate_null.h
//
//Version: $Revision: 1.11 $
//
//State: $State: Exp $
//
//Date: $Date: 1999/03/05 16:31:13 $
//
//Organisation:
//      University of Technology
// 
//Author:
//      Pasi Nummisalo
//
//Description:
//     Functions:
//     Disconnect and clearing of a previous call.
//     Incoming call handling.
//
//Copyright:
//     University of Technology
//     Laboratory of Telecommunications and Multimedia 
//      
//Licence:
//     
//
//History:
//

#ifndef __CC_O_STATE_NULL_H__
#define __CC_O_STATE_NULL_H__

#include "ccostate.h"

class ccOstateNull : public ccOstate
{
    public:
        static ccOstateNull *instance(void);

        void proceed(ccProtocol *protocol_);

        void sigRELEASEconfAct(sigRELEASEconf *messenger_,
                               pfProtocol *protocol_);
        
        void sigSETUPindAct(sigSETUPind *messenger_,
                            pfProtocol *protocol_);

        virtual void ccRELEASE_ACTIVEpduAct(ccRELEASE_ACTIVEpdu *messenger_,
                                            ccProtocol *protocol_);
        
    protected:
        ccOstateNull(void);
        virtual ~ccOstateNull(void);
        
    private:
        static ccOstateNull *_only;
};

#endif //__CC_O_STATE_NULL_H__