MNConcatinizerSH.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_CONCATINIZER_STREAM_HANDLER_H
#define MN_CONCATINIZER_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 "MNThread.h"
#include "MNList.h"
#include "var_type.h"

namespace SH
{

class ConcatinizerSH;
class ConcatinizerSinkEndpoint;
class ConcatinizerSourceEndpoint;

/**********************************************************************/
/* ConcatinizerSinkEndpoint                                         */
/**********************************************************************/

/* There is no push method because this streamhandler is ACTIVE only !!!
 * A call to push returns SH_ACTIVE as error message.
 */
class ConcatinizerSinkEndpoint
    : public SinkEndpoint
{
public:
    ConcatinizerSinkEndpoint( ConcatinizerSH* mySH );
    virtual ~ConcatinizerSinkEndpoint( );
};

/**********************************************************************/
/* ConcatinizerSourceEndpoint                                       */
/**********************************************************************/

/* There is no pull method because this streamhandler is ACTIVE only !!!
 * A call to pull returns SH_ACTIVE as error message.
 */
class ConcatinizerSourceEndpoint
    : public SourceEndpoint
{
public:
    ConcatinizerSourceEndpoint( ConcatinizerSH* mySH );
    virtual ~ConcatinizerSourceEndpoint( );
};

/**********************************************************************/
/* ConcatinizerSH                                                     */
/**********************************************************************/

class ConcatinizerSH
    : public Base
    , public MNThread
{
    SA_CONCATINIZER_MEM_THRESHOLD _memoryThreshold;

    SA_CONCATINIZER_BUFFER_SIZE _bufferSize;

    bool _memBuffer;

    MNList<DataPtr> *_tmpBuffer;

    SA_HAS_ORDERED_DATA _hasOrderedData;

    long _lastPatchPos;
    long _lastMainPos;
    long _firstMainPos;

    bool _patchActive;

    bool _mainActive;

    SA_CONCATINIZER_CACHING_ENABLED _cachingEnabled;

    bool _run;

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

private:

    ConcatinizerSH( const ConcatinizerSH& );

    ConcatinizerSH& operator=( const ConcatinizerSH& );

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

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

    //virtual void timer_callback ( MNTimer* timer, int fd );

    virtual void run();

    void patchComplete();

    void mainComplete();

    void createFileEndpoint();

    /******************************************************************/
    /* additional attributes for the set() functions                  */
    /******************************************************************/

public:
    // Attributes have been moved to SH.h

    /******************************************************************/
    /* functions required for SHStatus                                */
    /******************************************************************/
protected:
    friend class ConcatinizerSinkEndpoint;
    friend class ConcatinizerSourceEndpoint;

    virtual void pushReport( ReportPtr report, Direction d );

    SinkEndpoint*                    _in_ep_a[2];
    SourceEndpoint*                  _out_ep_a[2];
    ConcatinizerSinkEndpoint       _inEPpatch;
    ConcatinizerSinkEndpoint       _inEPmain;
    ConcatinizerSourceEndpoint     _outEPnet;
    ConcatinizerSourceEndpoint*    _outEPfile;

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

    virtual bool isConnected() const;
};


}; // namespace SH

#endif /* MN_CONCATINIZER_STREAM_HANDLER_H */

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