Import Geant4 11.1.0.beta source tree

2022-07-01 10:44:02 +02:00
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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 *
+// * institutes,nor the agencies providing financial support for this *
+// * 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.                      *
+// * By using,  copying,  modifying or  distributing the software (or *
+// * any work based  on the software)  you  agree  to acknowledge its *
+// * use  in  resulting  scientific  publications,  and indicate your *
+// * acceptance of all terms of the Geant4 Software license.          *
+// ********************************************************************
+//
+// Author: Jonathan Madsen (May 28st 2020)
+//
+// class description:
+//
+//      This class is used for multi-threaded Geant4.
+//      It encapsulates the mechanism of starting/stopping threads.
+
+#ifndef G4UserTaskThreadInitialization_hh
+#define G4UserTaskThreadInitialization_hh
+
+class G4VUserPrimaryGeneratorAction;
+class G4UserRunAction;
+class G4UserEventAction;
+class G4UserStackingAction;
+class G4UserTrackingAction;
+class G4UserSteppingAction;
+
+class G4WorkerThread;
+class G4WorkerTaskRunManager;
+
+#include "G4Threading.hh"
+#include "G4UserWorkerThreadInitialization.hh"
+#include "Randomize.hh"
+
+class G4UserTaskThreadInitialization : public G4UserWorkerThreadInitialization
+{
+ public:  // with description
+  G4UserTaskThreadInitialization();
+  virtual ~G4UserTaskThreadInitialization();
+
+  virtual G4Thread* CreateAndStartWorker(G4WorkerThread* workerThreadContext);
+  //  Called by the kernel to create a new thread/worker
+  //  and start work.
+  // Usere should not re-implement this function (in derived class), except only
+  // if he/she wants to verwrite the default threading model (see StartThread
+  // function)
+
+  virtual void SetupRNGEngine(const CLHEP::HepRandomEngine* aRNGEngine) const;
+  // Called by worker threads to set the Random Number Generator Engine
+  // The default implementation "clones" the engine from the master thread
+  // User needs to re-implement this method if using a non-standard
+  // RNG Engine (i.e. a different one w.r.t. the one provided in the CLHEP
+  // version supported by G4.
+  // Important: this method is called by all threads at the same time
+  //   if is user responsibilitiy to make it thread-safe
+
+  virtual void JoinWorker(G4Thread* aThread);
+  // Called by the kernel when threads need to be terminated. Implements logic
+  // of joining the aThread. Calling thread will wait for aThread to end. Usere
+  // should not re-implement this function (in derived class), except only if
+  // he/she wants to verwrite the default threading model (see StartThread
+  // function)
+
+  virtual G4WorkerRunManager* CreateWorkerRunManager() const;
+  // Called by StartThread function to create a run-manager implementing worker
+  // behvior. User should re-implemtn this function in derived class to
+  // instantiate his/her user-defined WorkerRunManager. By default this method
+  // instantiates G4WorkerTaskRunManager object.
+};
+
+#endif  // G4UserTaskThreadInitialization_hh