MNPacketMultiplierSH.h

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/* Copyright (C) 2000 KOM/Darmstadt University of Technology
 *
 * You are allowed to use all other parts of the code under the following terms:
 *
 * For non-commercial use, code may be used in unmodified form provided
 * that this copyright notice and this permission notice appear in
 * supporting documentation.
 *
 * This software is provided "as is" and without any express or implied
 * warranties, including, without limitation, the implied warranty of
 * fitness for a particular purpose.
 *
 * The code may be subjected to the GNU General Public License, Version 2,
 * and re-distributed under the terms of this license.
 * As a special exception, permission is granted to link this code
 * with the Qt library and distribute executables, as long as you
 * follow the requirements of the GNU GPL in regard to all of the
 * software in the executable aside from Qt.
 *
 * Commercial use other than under the terms of the GNU General Public
 * License is allowed only after express negotiation of conditions
 * with the authors.
 */
#ifndef MN_PACKET_MULTIPLIER_SH_H
#define MN_PACKET_MULTIPLIER_SH_H

#include <sys/types.h>

#include "SH.h"
#include "SHEndpoint.h"
#include "SHEndpointSpec.h"
#include "var_type.h"

class MNRTP;
class MNUDPSocket;
class MNRTPCodecBase;
class MNRope;

namespace SH
{

class PacketMultiplierSH;
class PacketMultiplierSinkEndpointSpec;
class PacketMultiplierSourceEndpointSpec;
class PacketMultiplierSinkEndpoint;
class PacketMultiplierSourceEndpoint;

/**********************************************************************/
/* PacketMultiplierSinkEndpoint                                     */
/**********************************************************************/

class PacketMultiplierSinkEndpoint
    : public SinkEndpoint
{
public:
    PacketMultiplierSinkEndpoint( PacketMultiplierSH* mySH );
    virtual ~PacketMultiplierSinkEndpoint( );

    virtual SH_RC push( DataPtr item );

    PacketMultiplierSH* dsh();
};

/**********************************************************************/
/* PacketMultiplierSourceEndpoint                                         */
/**********************************************************************/

class PacketMultiplierSourceEndpoint
    : public SourceEndpoint
{
public:
    PacketMultiplierSourceEndpoint( PacketMultiplierSH* mySH );
    virtual ~PacketMultiplierSourceEndpoint( );

    virtual SH_RC pull( DataPtr& item,
                        SourceUnit su = UnitDefault,
                        size_t amount = 0 );

    PacketMultiplierSH* dsh();
};

/**********************************************************************/
/* PacketMultiplierSH                                                     */
/**********************************************************************/

class PacketMultiplierSH
    : public Base
{

public:
    SH_RC push_decode( DataPtr  item );
    SH_RC pull_decode( DataPtr& item );

public:
    PacketMultiplierSH( SHGraphManager* mgr,
                        u_int32_t       runtimeId,
                        MNSelector&     sel );

private:

    PacketMultiplierSH( const PacketMultiplierSH& );

    PacketMultiplierSH& operator=( const PacketMultiplierSH& );

    /******************************************************************/
    /* functions required for Status                                  */
    /******************************************************************/
protected:
    friend class PacketMultiplierSinkEndpoint;
    friend class PacketMultiplierSourceEndpoint;

    virtual void pushReport( ReportPtr report, Direction d );

    SinkEndpoint*                    _in_ep_a[1];
    SourceEndpoint*                  _out_ep_a[2];
    PacketMultiplierSinkEndpoint   _inEP;
    PacketMultiplierSourceEndpoint _outEP1;
    PacketMultiplierSourceEndpoint _outEP2;

public:
    virtual SinkEndpoint**   getSinkSpecs();
    virtual SourceEndpoint** getSourceSpecs();

    virtual bool isConnected() const  ;
};


}; // namespace SH

#endif /* MN_PACKET_MULTIPLIER_SH_H*/

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