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geant4/source/geometry/magneticfield/include/G4FieldManagerStore.hh
T
2018-12-07 15:15:39 +01:00

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//
// ********************************************************************
// * License and Disclaimer *
// * *
// * The Geant4 software is copyright of the Copyright Holders of *
// * the Geant4 Collaboration. It is provided under the terms and *
// * conditions of the Geant4 Software License, included in the file *
// * LICENSE and available at http://cern.ch/geant4/license . These *
// * include a list of copyright holders. *
// * *
// * Neither the authors of this software system, nor their employing *
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// * work make any representation or warranty, express or implied, *
// * regarding this software system or assume any liability for its *
// * use. Please see the license in the file LICENSE and URL above *
// * for the full disclaimer and the limitation of liability. *
// * *
// * This code implementation is the result of the scientific and *
// * technical work of the GEANT4 collaboration. *
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// * acceptance of all terms of the Geant4 Software license. *
// ********************************************************************
//
//
//
// class G4FieldManagerStore
//
// Class description:
//
// Container for all FieldManagers, with functionality derived from
// std::vector<T>. The class is a `singleton', in that only
// one can exist, and access is provided via the static function
// G4FieldManagerStore::GetInstance()
//
// All FieldManagers should be registered with G4FieldManagerStore,
// and removed on their destruction.
// Intended principally to enable resetting of 'state' at start of event.
// The underlying container initially has a capacity of 100.
//
// Member data:
//
// static G4FieldManagerStore* fgInstance
// - Ptr to the single G4FieldManagerStore.
// History:
// 07.12.07 J.Apostolakis Initial version
// --------------------------------------------------------------------
#ifndef G4FIELDMANAGERSTORE_HH
#define G4FIELDMANAGERSTORE_HH
#include <vector>
#include "G4FieldManager.hh"
class G4FieldManagerStore : public std::vector<G4FieldManager*>
{
public: // with description
static void Register(G4FieldManager* pVolume);
// Add the logical volume to the collection.
static void DeRegister(G4FieldManager* pVolume);
// Remove the logical volume from the collection.
static G4FieldManagerStore* GetInstance();
// Get a ptr to the unique G4FieldManagerStore, creating it if necessary.
static G4FieldManagerStore* GetInstanceIfExist();
// Get a ptr to the unique G4FieldManagerStore.
static void Clean();
// Delete all volumes from the store.
void ClearAllChordFindersState();
// Looping over all field managers, call each one to reset step estimate
~G4FieldManagerStore();
// Destructor: takes care to delete allocated field managers.
protected:
G4FieldManagerStore();
private:
static G4ThreadLocal G4FieldManagerStore* fgInstance;
static G4ThreadLocal G4bool locked;
};
#endif