Gabriele Cosmo
107 lines
3.8 KiB
C++
107 lines
3.8 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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// G4FieldManagerStore
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//
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// Class description:
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//
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// Container for all FieldManagers, with functionality derived
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// from std::vector<T>. The class is a 'singleton', in that only
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// one can exist, and access is provided via the static function
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// G4FieldManagerStore::GetInstance().
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//
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// All FieldManagers should be registered with G4FieldManagerStore,
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// and removed on their destruction.
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// Intended principally to enable resetting of 'state' at start of event.
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// The underlying container initially has a capacity of 100.
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// Author: John Apostolakis (CERN), 07.12.2007 - Initial version
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// --------------------------------------------------------------------
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#ifndef G4FIELDMANAGERSTORE_HH
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#define G4FIELDMANAGERSTORE_HH
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#include <vector>
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#include "G4FieldManager.hh"
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/**
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* @brief G4FieldManagerStore is a container for all field managers, with
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* functionality derived from std::vector<T>. The class is a singleton.
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* All field managers should be registered with G4FieldManagerStore,
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* and removed on their destruction. Intended principally to enable resetting
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* of 'state' at start of an event.
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*/
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class G4FieldManagerStore : public std::vector<G4FieldManager*>
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{
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public:
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/**
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* Gets a pointer to the unique G4FieldManagerStore, creating it if
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* necessary.
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*/
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static G4FieldManagerStore* GetInstance();
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static G4FieldManagerStore* GetInstanceIfExist();
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/**
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* Adds the field manager to the collection.
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*/
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static void Register(G4FieldManager* pFieldMan);
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/**
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* Removes the field manager from the collection.
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*/
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static void DeRegister(G4FieldManager* pFieldMan);
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/**
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* Deletes all managers from the store.
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*/
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static void Clean();
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/**
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* Loops over all field managers and calls each one to reset step estimate.
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*/
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void ClearAllChordFindersState();
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/**
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* Destructor: takes care to delete the allocated field managers.
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*/
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~G4FieldManagerStore();
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private:
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/**
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* Private constructor.
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*/
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G4FieldManagerStore();
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private:
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static G4ThreadLocal G4FieldManagerStore* fgInstance;
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static G4ThreadLocal G4bool locked;
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};
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#endif
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