RndmGen.h

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//====================================================================
//      Random RndmGen class definition
//--------------------------------------------------------------------
//
//      Package    : Gaudi/RndmGen ( The LHCb Offline System)
//      Author     : M.Frank
//====================================================================
#ifndef GAUDI_RANDOMGENSVC_RNDMGEN_H
#define GAUDI_RANDOMGENSVC_RNDMGEN_H 1

// Framework include files
#include "GaudiKernel/IRndmGen.h"

// Forward declarations
class IRndmEngine;

class RndmGen : virtual public IRndmGen   {

private:
  unsigned long     m_refCount;

protected:
  IRndmGen::Param*  m_params;
  IRndmEngine*      m_engine;

  RndmGen(IInterface* engine);
  virtual ~RndmGen();

public:

  unsigned long addRef()    {
    return ++m_refCount;
  }

  unsigned long release()   {
    unsigned long cnt = --m_refCount;
    if ( cnt <= 0 )   {
      delete this;
    }
    return cnt;
  }
  StatusCode queryInterface(const InterfaceID& riid, void** ppvInterface);


  virtual StatusCode initialize(const IRndmGen::Param& par);
  virtual StatusCode finalize();
  virtual const InterfaceID& type() const    {
    return (m_params != 0) ? m_params->type() : IID_IRndmFlat;
  }
  virtual long ID() const    {
    return long(this);
  }
  virtual const IRndmGen::Param* parameters() const    {
    return m_params;
  }
  virtual double shoot() const;
  virtual StatusCode shootArray( std::vector<double>& array, long howmany, long start) const;
};

#endif // GAUDI_RANDOMGENSVC_RNDMGEN_H