G4DCofThisEvent.hh

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#ifndef G4DCofThisEvent_h
#define G4DCofThisEvent_h 1
 
#include "G4Allocator.hh"
#include "G4VDigiCollection.hh"
#include "globals.hh"
 
#include <vector>
 
// class description:
//
//  This is a class which stores digi collections generated at one event.
// This class is exclusively constructed by G4DigiManager when the first
// digi 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,
// GetDC() and GetNumberOfCollections() for accessing to the stored digi
// collection(s).
 
class G4DCofThisEvent
{
 public:
  G4DCofThisEvent();
  explicit G4DCofThisEvent(G4int cap);
  ~G4DCofThisEvent();
  G4DCofThisEvent(const G4DCofThisEvent&);
  G4DCofThisEvent& operator=(const G4DCofThisEvent&);
 
  inline void* operator new(size_t);
  inline void operator delete(void* anDCoTE);
 
  void AddDigiCollection(G4int DCID, G4VDigiCollection* aDC);
 
  //  Returns a pointer to a digi collection.
  // Returns `nullptr` if the particular collection is not stored in the current event.
  // The integer argument is ID number which is assigned by G4DigiManager
  // and the number can be obtained by G4DigiManager::GetDigiCollectionID()
  // method.
  inline G4VDigiCollection* GetDC(G4int i) const { return (*DC)[i]; }
 
  // Return number of digi collections stored
  inline G4int GetNumberOfCollections() const
  {
    G4int n = 0;
    for (const G4VDigiCollection* dc : *DC) {
      if (dc != nullptr) n++;
    }
    return n;
  }
 
  inline size_t GetCapacity() const { return DC->size(); }
 
 private:
  std::vector<G4VDigiCollection*>* DC;
};
 
#if defined G4DIGI_ALLOC_EXPORT
extern G4DLLEXPORT G4Allocator<G4DCofThisEvent>*& anDCoTHAllocator_G4MT_TLS_();
#else
extern G4DLLIMPORT G4Allocator<G4DCofThisEvent>*& anDCoTHAllocator_G4MT_TLS_();
#endif
 
inline void* G4DCofThisEvent::operator new(size_t)
{
  if (anDCoTHAllocator_G4MT_TLS_() == nullptr) {
    anDCoTHAllocator_G4MT_TLS_() = new G4Allocator<G4DCofThisEvent>;
  }
  return (void*)anDCoTHAllocator_G4MT_TLS_()->MallocSingle();
}
 
inline void G4DCofThisEvent::operator delete(void* anDCoTH)
{
  anDCoTHAllocator_G4MT_TLS_()->FreeSingle((G4DCofThisEvent*)anDCoTH);
}
 
#endif