G4VScoreHistFiller.cc

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//
// Class G4VScoreHistFiller
//
// Class description:
//  Abstract base class that defines functions to fill histogram and
//  profile plot. This class avoids the direct dependency to G4Analysis
//  category. Template class G4TScoreHistFiller should be used by the
//  user to specify the type of the file format.
//
//  Created: M. Asai (Sept. 2020)
//
//
 
#include "G4VScoreHistFiller.hh"
 
G4VScoreHistFiller* G4VScoreHistFiller::fgMasterInstance = nullptr;    
G4ThreadLocal G4VScoreHistFiller* G4VScoreHistFiller::fgInstance = nullptr;    
 
G4VScoreHistFiller* G4VScoreHistFiller::Instance()
{
// This function invokes creating the objects on workes,
// The master instance should be created by the user 
// via the concrete class constructor
 
  G4bool isMaster = ! G4Threading::IsWorkerThread();
 
  if ( ( ! isMaster ) && ( ! fgInstance ) ) {
    if ( fgMasterInstance ) {
      fgInstance = fgMasterInstance->CreateInstance();
    }
  }
 
  return fgInstance;
}    
 
G4VScoreHistFiller::G4VScoreHistFiller()
{
  G4bool isMaster = ! G4Threading::IsWorkerThread();
 
  if ( isMaster && fgMasterInstance  ) {
    G4ExceptionDescription description;
    description 
      << "      " 
      << "G4VScoreHistFiller on master already exists." 
      << "Cannot create another instance.";
    G4Exception("G4VScoreHistFiller::G4VScoreHistFiller()",
                "Analysis_F001", FatalException, description);
  }
  if ( fgInstance ) {
    G4ExceptionDescription description;
    description 
      << "      " 
      << "G4VScoreHistFiller on worker already exists." 
      << "Cannot create another instance.";
    G4Exception("G4VScoreHistFiller::G4VScoreHistFiller()",
                "Analysis_F001", FatalException, description);
  }
  if ( isMaster ) fgMasterInstance = this;
  fgInstance = this;
}
 
G4VScoreHistFiller::~G4VScoreHistFiller()
{
  fgInstance = 0;
}