CaTS/include/RootIO.hh

0001 //
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0025 //
0026 //
0027
0028 // ********************************************************************
0029 //
0030 //  CaTS (Calorimetry and Tracking Simulation)
0031 //
0032 //  Authors : Hans Wenzel
0033 //            Soon Yung Jun
0034 //            (Fermi National Accelerator Laboratory)
0035 //
0036 // History
0037 //   October 18th, 2021 : first implementation
0038 //
0039 // ********************************************************************
0040 //
0041 /// \file RootIO.hh
0042 /// \brief Definition of the CaTS::RootIO class
0043
0044 #ifdef WITH_ROOT
0045 #pragma once
0046
0047 #include "RtypesCore.h"
0048 #include <G4Types.hh>
0049 #include "G4ThreadLocalSingleton.hh"
0050
0051 class TFile;
0052 class TTree;
0053 class TBranch;
0054 class Event;
0055
0056 class RootIO {
0057     friend class G4ThreadLocalSingleton< RootIO >;
0058 public:
0059     virtual ~RootIO()= default;
0060     static RootIO* GetInstance();
0061     void Write(Event*);
0062     void Close();
0063     void Merge();
0064 protected:
0065     RootIO();
0066
0067 private:
0068     TFile* fFile{ nullptr };
0069     G4int fNevents{ 0 };
0070     TTree* ftree{ nullptr };
0071     TBranch* fevtbranch{ nullptr };
0072     Long64_t fnb{ 0 };
0073     G4bool fevtinitialized{ false };
0074     static G4ThreadLocal RootIO* fgInstance;
0075 };
0076 #endif /* WITH_ROOT */