RndmGenSvc.h

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* (c) Copyright 1998-2025 CERN for the benefit of the LHCb and ATLAS collaborations *
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* This software is distributed under the terms of the Apache version 2 licence,     *
* copied verbatim in the file "LICENSE".                                            *
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//====================================================================
//  Random Generator service definition
//--------------------------------------------------------------------
//
//  Package    : Gaudi/RndmGen ( The LHCb Offline System)
//  Author     : M.Frank
//====================================================================
#pragma once
 
// STL include files
#include <vector>
 
// Framework include files
#include <GaudiKernel/IRndmEngine.h>
#include <GaudiKernel/IRndmGen.h>
#include <GaudiKernel/IRndmGenSvc.h>
#include <GaudiKernel/ISerialize.h>
#include <GaudiKernel/Service.h>
 
// Forward declarations
class IRndmGenFactory;
class IMessageSvc;

class RndmGenSvc : public extends<Service, IRndmGenSvc, IRndmEngine, ISerialize> {
private:
  mutable SmartIF<IRndmEngine> m_engine;
  mutable SmartIF<ISerialize> m_serialize;
 
  Gaudi::Property<std::string> m_engineName{ this, "Engine", "HepRndm::Engine<CLHEP::RanluxEngine>", "engine name" };
  Gaudi::Property<bool>        m_useThreadSafeEngine{ this, "ThreadSafe", true, "use thread safe engine" };
 
public:
  // inherits constructor from base class
  using extends::extends;
 
public:
  StatusCode initialize() override;
  StatusCode finalize() override;
  StreamBuffer& serialize( StreamBuffer& str ) override;
  StreamBuffer& serialize( StreamBuffer& str ) const override;
  IRndmEngine* engine() override;
  StatusCode generator( const IRndmGen::Param& par, IRndmGen*& refpGen ) override;
  double rndm() const override;
  StatusCode rndmArray( std::vector<double>& array, long howmany, long start = 0 ) const override;
  StatusCode setSeeds( const std::vector<long>& seeds ) override;
  StatusCode seeds( std::vector<long>& seeds ) const override;
};