G4ClonedTrajectoryPoint.hh

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//
// G4ClonedTrajectoryPoint
//
// Class description:
//
// This class is identical to G4TrajectoryPoint class, but uses the
// singleton G4Allocator so that the master thread can safely
// delete the object instantiated by worker threads in sub-event
// parallel mode. 
//
// Makoto Asai (JLab) - Oct.2024
// --------------------------------------------------------------------
//
#ifndef G4ClonedTrajectoryPoint_hh
#define G4ClonedTrajectoryPoint_hh 1
 
#include "G4Allocator.hh"  // Include from 'particle+matter'
#include "G4ThreeVector.hh"  // Include from 'geometry'
#include "G4VTrajectoryPoint.hh"
#include "G4Threading.hh"
#include "globals.hh"  // Include from 'global'
 
#include "trkgdefs.hh"
 
class G4TrajectoryPoint;
 
class G4ClonedTrajectoryPoint : public G4VTrajectoryPoint
{
 public:
  // Constructors/Destructor
 
  G4ClonedTrajectoryPoint() = default;
  G4ClonedTrajectoryPoint(const G4TrajectoryPoint& right);
  ~G4ClonedTrajectoryPoint() override;
 
  // Operators
 
  inline void* operator new(size_t);
  inline void operator delete(void* aTrajectoryPoint);
  inline G4bool operator==(const G4ClonedTrajectoryPoint& right) const;
 
  // Get/Set functions
 
  inline const G4ThreeVector GetPosition() const override { return fPosition; }
 
  // Get method for HEPRep style attributes
  const std::map<G4String, G4AttDef>* GetAttDefs() const override;
  std::vector<G4AttValue>* CreateAttValues() const override;
 
 private:
  G4ThreeVector fPosition{0., 0., 0.};
};
 
extern G4TRACKING_DLL G4Allocator<G4ClonedTrajectoryPoint>*& aClonedTrajectoryPointAllocator();
 
inline void* G4ClonedTrajectoryPoint::operator new(size_t)
{
  if (aClonedTrajectoryPointAllocator() == nullptr) {
    aClonedTrajectoryPointAllocator() = new G4Allocator<G4ClonedTrajectoryPoint>;
  }
  return (void*)aClonedTrajectoryPointAllocator()->MallocSingle();
}
 
inline void G4ClonedTrajectoryPoint::operator delete(void* aTrajectoryPoint)
{
  aClonedTrajectoryPointAllocator()->FreeSingle((G4ClonedTrajectoryPoint*)aTrajectoryPoint);
}
 
inline G4bool G4ClonedTrajectoryPoint::operator==(const G4ClonedTrajectoryPoint& right) const
{
  return (this == &right);
}
 
#endif