Import Geant4 11.2.0 source tree

2023-12-08 10:43:34 +01:00
parent dd1f179cda
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3962 changed files with 139318 additions and 164259 deletions
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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.          *
+// ********************************************************************
+//
+// G4NavigationHistoryPool
+//
+// Class description:
+//
+// Thread-local pool for navigation history levels collections being
+// allocated by G4NavigationHistory. Allows for reuse of the vectors
+// allocated according to lifetime of G4NavigationHistory objects.
+
+// 07.05.14 G.Cosmo Initial version
+// --------------------------------------------------------------------
+#ifndef G4NAVIGATIONHISTORYPOOL_HH
+#define G4NAVIGATIONHISTORYPOOL_HH
+
+#include <vector>
+
+#include "G4NavigationLevel.hh"
+
+class G4NavigationHistoryPool
+{
+  public:
+
+    static G4NavigationHistoryPool* GetInstance();
+      // Return unique instance of G4NavigationHistoryPool.
+
+    inline std::vector<G4NavigationLevel> * GetNewLevels();
+      // Return the pointer to a new collection of levels being allocated.
+
+    inline std::vector<G4NavigationLevel> * GetLevels();
+      // Return the pointer of the first available collection of levels
+      // If none are available (i.e. empty Free vector) allocate collection.
+
+    inline void DeRegister(std::vector<G4NavigationLevel> * pLevels);
+      // Deactivate levels collection in pool.
+
+    void Clean();
+      // Delete all levels stored in the pool.
+
+    void Print() const;
+      // Print number of entries.
+
+   ~G4NavigationHistoryPool();
+      // Destructor: takes care to delete allocated levels.
+
+  private:
+
+    G4NavigationHistoryPool();
+      // Default constructor.
+
+    inline void Register(std::vector<G4NavigationLevel> * pLevels);
+      // Register levels collection to pool and activate it.
+
+    void Reset();
+      // Set internal vectors content to zero.
+
+  private:
+
+    static G4ThreadLocal G4NavigationHistoryPool* fgInstance;
+
+    std::vector<std::vector<G4NavigationLevel> *> fPool;
+    std::vector<std::vector<G4NavigationLevel> *> fFree;
+};
+
+// ***************************************************************************
+// Register levels collection to pool (add and/or activate)
+// ***************************************************************************
+//
+inline void G4NavigationHistoryPool::
+Register(std::vector<G4NavigationLevel> * pLevels)
+{
+  fPool.push_back(pLevels);
+}
+
+// ***************************************************************************
+// Deactivate levels collection in pool
+// ***************************************************************************
+//
+inline void G4NavigationHistoryPool::
+DeRegister(std::vector<G4NavigationLevel> * pLevels)
+{
+  fFree.push_back(pLevels);
+}
+
+// ***************************************************************************
+// Return the pointer of a new collection of levels allocated
+// ***************************************************************************
+//
+inline std::vector<G4NavigationLevel> * G4NavigationHistoryPool::GetNewLevels()
+{
+  auto aLevelVec = new std::vector<G4NavigationLevel>(kHistoryMax);
+  Register(aLevelVec);
+
+  return aLevelVec;
+}
+
+// ***************************************************************************
+// Return the pointer of the first available collection of levels
+// If none are available (i.e. non active) allocate collection
+// ***************************************************************************
+//
+inline std::vector<G4NavigationLevel> * G4NavigationHistoryPool::GetLevels()
+{
+  std::vector<G4NavigationLevel> * levels = nullptr;
+
+  if (!fFree.empty())
+  {
+    levels = fFree.back();
+    fFree.pop_back();
+  }
+  else
+  {
+    levels = GetNewLevels();
+  }
+
+  return levels;
+}
+
+#endif