MNFileSinkSH.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_FILE_SINK_STREAM_HANDLER_H
#define MN_FILE_SINK_STREAM_HANDLER_H

#include <sys/types.h>

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

class MNRope;

namespace SH
{

class FileSinkSH;

/**********************************************************************/
/* FileSinkEndpoint                                         */
/**********************************************************************/

class FileSinkEndpoint
    : public SinkEndpoint
{
public:
    FileSinkEndpoint( FileSinkSH* mySH );
    virtual ~FileSinkEndpoint( );

    virtual SH_RC push( DataPtr item );

    FileSinkSH* fsh();
};

/**********************************************************************/
/* FileSinkSH                                                     */
/**********************************************************************/

class FileSinkSH
    : public Base
{
public:
    FileSinkSH( SHGraphManager* mgr,
                u_int32_t       runtimeId,
                MNSelector&     sel );

    virtual ~FileSinkSH();

private:

    FileSinkSH( const FileSinkSH& );

    FileSinkSH& operator=( const FileSinkSH& );

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

    SH_RC push_to_file( DataPtr item );

    /******************************************************************/
    /* additional attributes for the set() functions                  */
    /******************************************************************/
public:
    SA_FILE_NAME        _filename;
    SA_FILESNK_CREAT    _creat;
    SA_FILESNK_APPEND   _append;
    SA_HAS_ORDERED_DATA _hasOrderedData;

    int                   _file_handle;
    long                  _call_count;
    long                  _bytes_written;
    long                  _file_offset;

    // Attributes have been moved to SH.h

    /******************************************************************/
    /* functions required for Base::Spec                              */
    /******************************************************************/
protected:
    friend class FileSinkEndpoint;

    SinkEndpoint*          _in_ep_a[1];
    FileSinkEndpoint     _inEP;

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

    /******************************************************************/
    /* functions required for Status                                  */
    /******************************************************************/
    virtual bool isConnected() const;
};


}; // namespace SH

#endif /* MN_FILE_SINK_STREAM_HANDLER_H */

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