//--------------------------------------------------------------------------
// File and Version Information:
// 	$Id: APPLevel3OnlineOutputModule.hh,v 1.9 2002/07/29 14:39:41 ksmcf Exp $
//
// Description:
//	Class APPLevel3OnlineOutputModule. This is an online output module
//	for the AC++ framework. It coordinates and interfaces farm
//      control with framework control.  In addition it returns the
//      events/records and state information required by framework.
//
// Environment:
//	Software developed for CDF II.
//
// Author List:
//	Liz Sexton-Kennedy 		Original Author
//  Kevin McFarland
//
//------------------------------------------------------------------------

#ifndef APPLevel3OnlineOutputModule_HH
#define APPLevel3OnlineOutputModule_HH

//-----------------------
// Experiment Headers --
//-----------------------
#include "BaBar/Experiment.hh"

//----------------------
// Base Class Headers --
//----------------------
#include "Level3Mods/APPLevel3SenderOutputModule.hh"
#include "Level3Mods/APPLevel3InputModule.hh"
#include "Level3Control/Abs_Level3Interface.hh"


//----------------------
// Collaborating Class Headers --
//----------------------
#include "Framework/AbsParmGeneral.hh"
#ifndef                  TRY_DATAREP_CONVERTER_HH
#include "Trybos/private/TRY_Datarep_Converter.hh"
#endif
#ifndef          TRY_FIXED_SIZE_TYPES_HH
#include "Trybos/TRY_Fixed_Size_Types.hh"
#endif

//------------------------------------
// Collaborating Class Declarations --
//------------------------------------

class AbsEvent;
class AppStream;
class AppOutputCommand;
template<class Item> class APPList;
class APPLevel3InputModule;

//              ---------------------
//              -- Class Interface --
//              ---------------------
 
class APPLevel3OnlineOutputModule : public APPLevel3SenderOutputModule {

//--------------------
// Instance Members --
//--------------------

public:
      
  // Constructors
  APPLevel3OnlineOutputModule( const char* const theName, 
                         const char* const theDescription,
                          const int4 exeTag = -1);
  
  // Destructor
  virtual ~APPLevel3OnlineOutputModule( );
  
  // Operations
  
  // Only I/O initialization and sending methods are overriden
  //

  AppResult      initIOSystem();
  AppResult      terminateIOSystem();

  // event sending method

  AppResult  sendFlatEvent( bool sendIt, size_t flatEventLength,
                            errorStatus status );
  AppResult  disconnectOnAbort();


  // Data structure methods, information accessors

  int headerWords() const;
  void fillHeaderWords(int4* pHeader,
                       const AppStopType& theDispatchStopType,
                       size_t length, 
                       long processId);
  long externalMaximumBufferSize() const;

  // Selectors
  
  const char*  rcsId( ) const;    
  int  debugLevel( ) const;    

  // information for filling TL3D
  int getExeNumber() const;
  int4 getHost() const;

private:
  
  APPLevel3InputModule*  _theInputModule;
  Abs_Level3Interface* _theInterface;
  
};

#endif