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G4AutoDelete.hh
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1 //
2 // ********************************************************************
3 // * License and Disclaimer *
4 // * *
5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. *
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11 // * Neither the authors of this software system, nor their employing *
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14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file LICENSE and URL above *
16 // * for the full disclaimer and the limitation of liability. *
17 // * *
18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distributing the software (or *
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24 // ********************************************************************
25 //
26 //
27 // ---------------------------------------------------------------
28 // GEANT 4 class header file
29 //
30 // Class Description:
31 // This function implements a simplified "garbage collection" mechanism
32 // for G4-MT model. Objects are registered when created on the heap and they
33 // will be deleted at the end of
34 // the program (like they would be if marked as "static").
35 //
36 // Limitation:
37 // The registered object, should not
38 // contain any G4ThreadLocal data member. Note that in general,
39 // if object is to be thread-private it is unnecessary to mark
40 // any data-member as G4ThreadLocal.
41 //
42 // Performance issues:
43 // This function uses G4ThreadLocalSingleton that on its own uses
44 // locks and mutexes. Thus its use should be limited to only when
45 // really necessary.
46 //
47 // Example:
48 // class G4SharedByThreads {
49 // void calledByThreads() {
50 // G4Something* anObject = new G4Something;
51 // G4AutoDelete::Register( anObject );
52 // }
53 // };
54 //
55 // History:
56 // 28 October 2013: A. Dotti - First implementation
57 
58 #ifndef G4AUTODELETE_HH
59 #define G4AUTODELETE_HH
60 
62 namespace G4AutoDelete {
63  template<class T>
64  void Register( T* inst ) {
65  static G4ThreadLocalSingleton<T> container;
66  container.Register(inst);
67  }
68 }
69 
70 #endif //G4AUTODELETE_HH