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 // ********************************************************************
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 // * 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 *
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 // * This  code  implementation is the result of  the  scientific and *
 // * technical work of the GEANT4 collaboration.                      *
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 //
 // G4VModularPhysicsList
 //
 // Class description:
 //
 // This class is a subclass of G4VUserPhysicsList.
 // The user should register his/her physics constructors by using:
 //   G4VModularPhysicsList::RegsiterPhysics()
 // to construt particles and processes.
 //
 // Only one physics constructor can be registered for each "physics_type".
 // Physics constructors with same "physics_type" can be replaced using the
 // G4VModularPhysicsList::ReplacePhysics() method.
 
 // Original author: H.Kurashige (Kobe University), 12 November 2000
 // --------------------------------------------------------------------
 #ifndef G4VModularPhysicsList_hh
 #define G4VModularPhysicsList_hh 1
 
 #include "G4VPhysicsConstructor.hh"
 #include "G4VUPLSplitter.hh"
 #include "G4VUserPhysicsList.hh"
 #include "G4ios.hh"
 #include "globals.hh"
 
 #include "rundefs.hh"
 
 #include <vector>
 
 class G4VMPLData
 {
     // Encapsulate the fields of class G4VModularPhysicsList
     // that are per-thread.
 
   public:
     void initialize();
     using G4PhysConstVectorData = std::vector<G4VPhysicsConstructor*>;
     // See: https://jira-geant4.kek.jp/browse/DEV-284
     G4PhysConstVectorData* physicsVector = nullptr;
 };
 
 // The type G4VMPLManager is introduced to encapsulate the methods used by
 // both the master thread and worker threads to allocate memory space for
 // the fields encapsulated by the class G4VMPLData. When each thread
 // changes the value for these fields, it refers to them using a macro
 // definition defined below. For every G4VUserPhysicsList instance,
 // there is a corresponding G4VMPLData instance. All G4VMPLData instances
 // are organized by the class G4VMPLManager as an array.
 // The field "int G4VMPLInstanceID" is added to the class G4VUserPhysicsList.
 // The value of this field in each G4VUserPhysicsList instance is the
 // subscript of the corresponding G44VUPLData instance.
 // In order to use the class G44VUPLManager, we add a static member in the class
 // G4VUserPhysicsList as follows: "static G4VMPLManager subInstanceManager".
 // Both the master thread and worker threads change the length of the array
 // for G44VUPLData instances mutually along with G4VUserPhysicsList
 // instances are created.
 //
 using G4VMPLManager = G4VUPLSplitter<G4VMPLData>;
 using G4VModularPhysicsListSubInstanceManager = G4VMPLManager;
 
 class G4VModularPhysicsList : public virtual G4VUserPhysicsList
 {
   public:
     G4VModularPhysicsList();
     ~G4VModularPhysicsList() override;
 
     // This method will be invoked in the Construct() method.
     // Each particle type will be instantiated.
     void ConstructParticle() override;
 
     // This method will be invoked in the Construct() method.
     // Each physics process will be instantiated and
     // registered to the process manager of each particle type.
     void ConstructProcess() override;
 
     // Register Physics Constructor.
     void RegisterPhysics(G4VPhysicsConstructor*);
 
     const G4VPhysicsConstructor* GetPhysics(G4int index) const;
     const G4VPhysicsConstructor* GetPhysics(const G4String& name) const;
     const G4VPhysicsConstructor* GetPhysicsWithType(G4int physics_type) const;
 
     // Replace the Physics Constructor.
     // The existing physics constructor with same physics_type as one of
     // the given physics constructor is replaced (existing physics will be
     // deleted). If a corresponding physics constructor is NOT found,
     // the given physics constructor is just added.
     void ReplacePhysics(G4VPhysicsConstructor*);
 
     // Remove the Physics Constructor from the list.
     void RemovePhysics(G4VPhysicsConstructor*);
     void RemovePhysics(G4int type);
     void RemovePhysics(const G4String& name);
 
     inline G4int GetInstanceID() const;
     static const G4VMPLManager& GetSubInstanceManager();
     void TerminateWorker() override;
 
     // Set/get control flag for output message
     //  0: Silent
     //  1: Warning message
     //  2: More
     // given verbose level is set to all physics constructors.
     void SetVerboseLevel(G4int value);
     G4int GetVerboseLevel() const;
 
   protected:
     // Protected copy constructor and assignment operator.
     G4VModularPhysicsList(const G4VModularPhysicsList&);
     G4VModularPhysicsList& operator=(const G4VModularPhysicsList&);
 
     using G4PhysConstVector = G4VMPLData::G4PhysConstVectorData;
 
     G4int verboseLevel = 0;
     G4int g4vmplInstanceID = 0;
     G4RUN_DLL static G4VMPLManager G4VMPLsubInstanceManager;
 };
 
 // Inline methods implementations
 
 inline G4int G4VModularPhysicsList::GetVerboseLevel() const
 {
   return verboseLevel;
 }
 
 inline G4int G4VModularPhysicsList::GetInstanceID() const
 {
   return g4vmplInstanceID;
 }
 
 inline const G4VMPLManager& G4VModularPhysicsList::GetSubInstanceManager()
 {
   return G4VMPLsubInstanceManager;
 }
 
 #endif

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