G4HCofThisEvent.hh

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#ifndef G4HCofThisEvent_h
#define G4HCofThisEvent_h 1
 
#include "G4Allocator.hh"
#include "G4VHitsCollection.hh"
#include "globals.hh"
 
#include <vector>
 
// class description:
//
//  This is a class which stores hits collections generated at one event.
// This class is exclusively constructed by G4SDManager when the first
// hits collection of an event is passed to the manager, and this class
// object is deleted by G4RunManager when a G4Event class object is deleted.
//  Almost all public methods must be used by Geant4 kernel classes and
// the user should not invoke them. The user can use two const methods,
// GetHC() and GetNumberOfCollections() for accessing to the stored hits
// collection(s).
 
class G4HCofThisEvent
{
 public:
  G4HCofThisEvent();
  explicit G4HCofThisEvent(G4int cap);
  ~G4HCofThisEvent();
  G4HCofThisEvent(const G4HCofThisEvent&);
  G4HCofThisEvent& operator=(const G4HCofThisEvent&);
 
  inline void* operator new(size_t);
  inline void operator delete(void* anHCoTE);
 
  void AddHitsCollection(G4int HCID, G4VHitsCollection* aHC);
 
  //  Returns a pointer to a hits collection. Null will be returned
  // if the particular collection is not stored at the current event.
  // The integer argument is ID number which is assigned by G4SDManager
  // and the number can be obtained by G4SDManager::GetHitsCollectionID()
  // method.
  inline G4VHitsCollection* GetHC(G4int i) { return (*HC)[i]; }
 
  // Return number of hits collections which are stored in this class
  // object.
  inline G4int GetNumberOfCollections()
  {
    G4int n = 0;
    for (const G4VHitsCollection* h : *HC) {
      if (h != nullptr) n++;
    }
    return n;
  }
 
  inline size_t GetCapacity() { return HC->size(); }
 
 private:
  std::vector<G4VHitsCollection*>* HC;
};
 
#if defined G4DIGI_ALLOC_EXPORT
extern G4DLLEXPORT G4Allocator<G4HCofThisEvent>*& anHCoTHAllocator_G4MT_TLS_();
#else
extern G4DLLIMPORT G4Allocator<G4HCofThisEvent>*& anHCoTHAllocator_G4MT_TLS_();
#endif
 
inline void* G4HCofThisEvent::operator new(size_t)
{
  if (anHCoTHAllocator_G4MT_TLS_() == nullptr) {
    anHCoTHAllocator_G4MT_TLS_() = new G4Allocator<G4HCofThisEvent>;
  }
  return (void*)anHCoTHAllocator_G4MT_TLS_()->MallocSingle();
}
 
inline void G4HCofThisEvent::operator delete(void* anHCoTH)
{
  anHCoTHAllocator_G4MT_TLS_()->FreeSingle((G4HCofThisEvent*)anHCoTH);
}
 
#endif