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1 // 1 //
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18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. *
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24 // ******************************************* 24 // ********************************************************************
25 // 25 //
26 // Author: Jonathan Madsen (May 28st 2020) 26 // Author: Jonathan Madsen (May 28st 2020)
27 // 27 //
28 // class description: 28 // class description:
29 // 29 //
30 // This class is used for multi-threaded 30 // This class is used for multi-threaded Geant4.
31 // It encapsulates the mechanism of start 31 // It encapsulates the mechanism of starting/stopping threads.
32 32
33 #ifndef G4UserTaskThreadInitialization_hh 33 #ifndef G4UserTaskThreadInitialization_hh
34 #define G4UserTaskThreadInitialization_hh 34 #define G4UserTaskThreadInitialization_hh
35 35
36 //class G4VUserPrimaryGeneratorAction; << 36 class G4VUserPrimaryGeneratorAction;
37 //class G4UserRunAction; << 37 class G4UserRunAction;
38 //class G4UserEventAction; << 38 class G4UserEventAction;
39 //class G4UserStackingAction; << 39 class G4UserStackingAction;
40 //class G4UserTrackingAction; << 40 class G4UserTrackingAction;
41 //class G4UserSteppingAction; << 41 class G4UserSteppingAction;
42 42
43 class G4WorkerThread; 43 class G4WorkerThread;
44 class G4WorkerTaskRunManager; 44 class G4WorkerTaskRunManager;
45 45
46 #include "G4Threading.hh" 46 #include "G4Threading.hh"
47 #include "G4UserWorkerThreadInitialization.hh" 47 #include "G4UserWorkerThreadInitialization.hh"
48 #include "Randomize.hh" 48 #include "Randomize.hh"
49 49
50 class G4UserTaskThreadInitialization : public 50 class G4UserTaskThreadInitialization : public G4UserWorkerThreadInitialization
51 { 51 {
52 public: // with description << 52 public: // with description
53 G4UserTaskThreadInitialization() = default << 53 G4UserTaskThreadInitialization();
54 ~G4UserTaskThreadInitialization() override << 54 virtual ~G4UserTaskThreadInitialization();
55 << 55
56 // Called by the kernel to create a new t << 56 virtual G4Thread* CreateAndStartWorker(G4WorkerThread* workerThreadContext);
57 // and start work. << 57 // Called by the kernel to create a new thread/worker
58 // Usere should not re-implement this func << 58 // and start work.
59 // if he/she wants to verwrite the default << 59 // Usere should not re-implement this function (in derived class), except only
60 // function) << 60 // if he/she wants to verwrite the default threading model (see StartThread
61 G4Thread* CreateAndStartWorker(G4WorkerThr << 61 // function)
62 << 62
63 // Called by worker threads to set the Ran << 63 virtual void SetupRNGEngine(const CLHEP::HepRandomEngine* aRNGEngine) const;
64 // The default implementation "clones" the << 64 // Called by worker threads to set the Random Number Generator Engine
65 // User needs to re-implement this method << 65 // The default implementation "clones" the engine from the master thread
66 // RNG Engine (i.e. a different one w.r.t. << 66 // User needs to re-implement this method if using a non-standard
67 // version supported by G4. << 67 // RNG Engine (i.e. a different one w.r.t. the one provided in the CLHEP
68 // Important: this method is called by all << 68 // version supported by G4.
69 // if is user responsibilitiy to make it << 69 // Important: this method is called by all threads at the same time
70 void SetupRNGEngine(const CLHEP::HepRandom << 70 // if is user responsibilitiy to make it thread-safe
71 << 71
72 // Called by the kernel when threads need << 72 virtual void JoinWorker(G4Thread* aThread);
73 // of joining the aThread. Calling thread << 73 // Called by the kernel when threads need to be terminated. Implements logic
74 // should not re-implement this function ( << 74 // of joining the aThread. Calling thread will wait for aThread to end. Usere
75 // he/she wants to verwrite the default th << 75 // should not re-implement this function (in derived class), except only if
76 // function) << 76 // he/she wants to verwrite the default threading model (see StartThread
77 void JoinWorker(G4Thread* aThread) overrid << 77 // function)
78 << 78
79 // Called by StartThread function to creat << 79 virtual G4WorkerRunManager* CreateWorkerRunManager() const;
80 // behvior. User should re-implemtn this f << 80 // Called by StartThread function to create a run-manager implementing worker
81 // instantiate his/her user-defined Worker << 81 // behvior. User should re-implemtn this function in derived class to
82 // instantiates G4WorkerTaskRunManager obj << 82 // instantiate his/her user-defined WorkerRunManager. By default this method
83 G4WorkerRunManager* CreateWorkerRunManager << 83 // instantiates G4WorkerTaskRunManager object.
84 }; 84 };
85 85
86 #endif // G4UserTaskThreadInitialization_hh 86 #endif // G4UserTaskThreadInitialization_hh
87 87