SHDummyData.h

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/* Copyright (C) 2002 Carsten Griwodz
 *
 * You are allowed to use all other parts of the code under the following terms:
 *
 * For non-commercial use, this code may be used in unmodified form
 * provided that this copyright notice and this permission notice appear
 * in supporting documentation.
 *
 * The code may be made subject to the terms of the GNU General Public
 * License, Version 2, and re-distributed under the terms of this license.
 *
 * Commercial use other than under the terms of the GNU General Public
 * License is allowed only after negotiation of conditions with the authors.
 */
#ifndef SH_DUMMY_DATA_H
#define SH_DUMMY_DATA_H

#include <sys/types.h>
#include "var_type.h"

#include "SHData.h"

class MNRope;

namespace SH
{

class DummyData : public Data
{
public:
    DummyData( u_int32_t seqno, u_int32_t pri, u_int32_t len );

    virtual ~DummyData();

    virtual DataPtr clone();

    virtual size_t getByteSize( ) const;

    virtual bool isDummyData( )   const { return true;  } 
    virtual bool isPlainData( )   const { return false; } 
    virtual bool isOrderedData( ) const { return false; } 
    virtual bool isRTPData( )     const { return false; } 
    virtual bool isSHRTPData( )   const { return false; } 
    u_int32_t seqno( ) const;
    u_int32_t priority( ) const;
    u_int32_t length( ) const;

protected:
    DummyData( const DummyData& orig );

private:
    u_int32_t _seqno;
    u_int32_t _priority;
    u_int32_t _length;

    DummyData& operator=( const DummyData& );
};

class OrderedDummyData : public DummyData
{
public:
    OrderedDummyData( u_int32_t seqno,
                      u_int32_t pri,
                      u_int32_t len,
                      u_int64_t bytepos );
    OrderedDummyData( const OrderedDummyData& orig );

    virtual DataPtr clone();

    u_int64_t get_byte_pos( ) const;

    virtual bool isOrderedData( ) const { return true; } 

private:
    u_int64_t _bytepos;
};


}; // namespace SH

#endif /* SH_DUMMY_DATA_H */

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