Import Geant4 10.3.0 source tree

2016-12-09 12:35:28 +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 *
+// * 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.          *
+// ********************************************************************
+//
+//
+// $Id: G4PDefManager.hh 101112 2016-11-07 08:19:33Z gcosmo $
+//
+//
+// ------------------------------------------------------------
+//
+//	GEANT 4 class header file
+//
+// ---------------- G4PDefManager ----------------
+//
+// Utility template class for splitting RW data for thread-safety from
+// classes: G4ParticleDefinition, G4VDecayChannel.
+//
+// ------------------------------------------------------------
+// History:
+// 01.25.2009 Xin Dong: First implementation from automatic MT conversion.
+// ------------------------------------------------------------
+#ifndef G4PDefManager_HH
+#define G4PDefManager_HH
+
+#include <stdlib.h>
+
+#include "globals.hh"
+#include "pwdefs.hh"
+#include "G4AutoLock.hh"
+
+class G4ProcessManager;
+
+// G4PDefData is the private data from the object to be split
+class G4PDefData
+{
+  // Encapsulates the fields of the class G4ParticleDefinition
+  // that may not be read-only.
+
+  public:
+
+    void initialize();
+
+    G4ProcessManager *theProcessManager;
+};
+
+// The type G4PDefManager 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 G4PDefData. When each thread
+// changes the value for these fields, it refers to them using a macro
+// definition defined below. For every G4ParticleDefinition instance,
+// there is a corresponding G4PDefData instance. All G4PDefData instances
+// are organized by the class G4PDefManager as an array.
+// The field "int g4particleDefinitionInstanceID" is added to the class G4ParticleDefinition.
+// The value of this field in each G4ParticleDefinition instance is the
+// subscript of the corresponding G4PDefData instance.
+// In order to use the class G4PDefManager, we add a static member in the class
+// G4ParticleDefinition as follows: "static G4PDefManager subInstanceManager".
+// Both the master thread and worker threads change the length of the array
+// for G4PDefData instances mutually along with G4ParticleDefinition
+// instances are created. For each worker thread, it dynamically creates ions.
+// Consider any thread A, if there is any other thread which creates an ion.
+// This ion is shared by the thread A. So the thread A leaves an empty space
+// in the array of G4PDefData instances for the ion.
+//
+
+class G4PDefManager
+{
+  public:
+
+    G4PDefManager();
+    G4int CreateSubInstance();
+      // Invoked by the master or work thread to create a new subinstance
+      // whenever a new split class instance is created. For each worker
+      // thread, ions are created dynamically.
+
+
+    void NewSubInstances();
+      // Invoked by each worker thread to grow the subinstance array and
+      // initialize each new subinstance using a particular method defined
+      // by the subclass.
+
+    void FreeSlave();
+      // Invoked by all threads to free the subinstance array.
+
+
+    G4PDefData*   GetOffset();
+
+    void UseWorkArea( G4PDefData* newOffset ); // ,  G4int numObjects, G4int numSpace)
+
+    G4PDefData* FreeWorkArea(); // G4int* numObjects, G4int* numSpace)
+
+  public:
+
+    G4PART_DLL G4ThreadLocalStatic G4int slavetotalspace;
+    G4PART_DLL G4ThreadLocalStatic G4PDefData* offset;
+
+  private:
+
+    G4int totalobj;
+    G4Mutex mutex;
+};
+
+#endif