Geant4 Cross Reference

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Geant4/examples/advanced/CaTS/include/RootIO.hh

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  1 //
  2 // ********************************************************************
  3 // * License and Disclaimer                                           *
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 15 // * use.  Please see the license in the file  LICENSE  and URL above *
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 17 // *                                                                  *
 18 // * This  code  implementation is the result of  the  scientific and *
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 23 // * acceptance of all terms of the Geant4 Software license.          *
 24 // ********************************************************************
 25 //
 26 //
 27 
 28 // ********************************************************************
 29 //
 30 //  CaTS (Calorimetry and Tracking Simulation)
 31 //
 32 //  Authors : Hans Wenzel
 33 //            Soon Yung Jun
 34 //            (Fermi National Accelerator Laboratory)
 35 //
 36 // History
 37 //   October 18th, 2021 : first implementation
 38 //
 39 // ********************************************************************
 40 //
 41 /// \file RootIO.hh
 42 /// \brief Definition of the CaTS::RootIO class
 43 
 44 #ifdef WITH_ROOT
 45 #pragma once
 46 
 47 #include "RtypesCore.h"
 48 #include <G4Types.hh>
 49 #include "G4ThreadLocalSingleton.hh"
 50 
 51 class TFile;
 52 class TTree;
 53 class TBranch;
 54 class Event;
 55 
 56 class RootIO {
 57     friend class G4ThreadLocalSingleton< RootIO >;
 58 public:
 59     virtual ~RootIO()= default;
 60     static RootIO* GetInstance();
 61     void Write(Event*);
 62     void Close();
 63     void Merge();
 64 protected:
 65     RootIO();
 66 
 67 private:
 68     TFile* fFile{ nullptr };
 69     G4int fNevents{ 0 };
 70     TTree* ftree{ nullptr };
 71     TBranch* fevtbranch{ nullptr };
 72     Long64_t fnb{ 0 };
 73     G4bool fevtinitialized{ false };
 74     static G4ThreadLocal RootIO* fgInstance;
 75 };
 76 #endif /* WITH_ROOT */
 77