include/Geant4/G4FieldManagerStore.hh

0001 //
0002 // ********************************************************************
0003 // * License and Disclaimer                                           *
0004 // *                                                                  *
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0024 // ********************************************************************
0025 //
0026 // G4FieldManagerStore
0027 //
0028 // Class description:
0029 //
0030 // Container for all FieldManagers, with functionality derived
0031 // from std::vector<T>. The class is a 'singleton', in that only
0032 // one can exist, and access is provided via the static function
0033 // G4FieldManagerStore::GetInstance().
0034 //
0035 // All FieldManagers should be registered with G4FieldManagerStore,
0036 // and removed on their destruction.
0037 // Intended principally to enable resetting of 'state' at start of event.
0038 // The underlying container initially has a capacity of 100.
0039
0040 // Author: J.Apostolakis, 07.12.2007 - Initial version
0041 // --------------------------------------------------------------------
0042 #ifndef G4FIELDMANAGERSTORE_HH
0043 #define G4FIELDMANAGERSTORE_HH
0044
0045 #include <vector>
0046
0047 #include "G4FieldManager.hh"
0048
0049 class G4FieldManagerStore : public std::vector<G4FieldManager*>
0050 {
0051   public:  // with description
0052
0053     static void Register(G4FieldManager* pVolume);
0054       // Add the logical volume to the collection.
0055     static void DeRegister(G4FieldManager* pVolume);
0056       // Remove the logical volume from the collection.
0057     static G4FieldManagerStore* GetInstance();
0058       // Get a ptr to the unique G4FieldManagerStore, creating it if necessary.
0059     static G4FieldManagerStore* GetInstanceIfExist();
0060       // Get a ptr to the unique G4FieldManagerStore.
0061     static void Clean();
0062       // Delete all volumes from the store.
0063
0064     void ClearAllChordFindersState();
0065       // Looping over all field managers, call each one to reset step estimate
0066
0067     ~G4FieldManagerStore();
0068       // Destructor: takes care to delete allocated field managers.
0069
0070   protected:
0071
0072     G4FieldManagerStore();
0073
0074   private:
0075
0076     static G4ThreadLocal G4FieldManagerStore* fgInstance;
0077     static G4ThreadLocal G4bool locked;
0078 };
0079
0080 #endif