SHActiveSH.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 SH_ACTIVE_STREAM_HANDLER_H
#define SH_ACTIVE_STREAM_HANDLER_H

#include <sys/types.h>
#include <sys/time.h>

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

namespace SH
{

class ActiveSH;
class ActiveSinkEndpointSpec;
class ActiveSourceEndpointSpec;
class ActiveSinkEndpoint;
class ActiveSourceEndpoint;

/**********************************************************************/
/* ActiveSinkEndpoint                                           */
/**********************************************************************/

class ActiveSinkEndpoint
    : public SinkEndpoint
{
public:
    ActiveSinkEndpoint( ActiveSH* mySH );
    virtual ~ActiveSinkEndpoint( );
};

/**********************************************************************/
/* ActiveSourceEndpoint                                         */
/**********************************************************************/

class ActiveSourceEndpoint
    : public SourceEndpoint
{
public:
    ActiveSourceEndpoint( ActiveSH* mySH );
    virtual ~ActiveSourceEndpoint( );
};

/**********************************************************************/
/* ActiveSH                                                     */
/**********************************************************************/

class ActiveSH
    : public Base
{
    MNTimer _timer;

    SA_ACTIVE_DELAY _delay;

    TimerCall<ActiveSH> _timer_cb;

    struct timeval _construction_time;

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

    virtual ~ActiveSH();

private:

    ActiveSH( const ActiveSH& );

    ActiveSH& operator=( const ActiveSH& );

public:
    virtual SH_RC initSH();
    virtual SH_RC uninitSH();

    virtual SH_RC startStreaming();
    virtual SH_RC stopStreaming();

    virtual void timer_callback( void* timer, TimerCallBase* ptr );

    // Attributes of the set function have been moved to SH.h

    /******************************************************************/
    /* functions required for SHStatus                                */
    /******************************************************************/
protected:
    friend class ActiveSinkEndpoint;
    friend class ActiveSourceEndpoint;

    SinkEndpoint*              _in_ep_a[1];
    SourceEndpoint*            _out_ep_a[1];
    ActiveSinkEndpoint       _inEP;
    ActiveSourceEndpoint     _outEP;

    void pushReport( ReportPtr report, Direction d );

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

    virtual bool isConnected() const;
};


}; // namespace SH

#endif /* SH_ACTIVE_STREAM_HANDLER_H */

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