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1 // 1 //
2 // ******************************************* 2 // ********************************************************************
3 // * License and Disclaimer 3 // * License and Disclaimer *
4 // * 4 // * *
5 // * The Geant4 software is copyright of th 5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided 6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License 7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/ 8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. 9 // * include a list of copyright holders. *
10 // * 10 // * *
11 // * Neither the authors of this software syst 11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing fin 12 // * institutes,nor the agencies providing financial support for this *
13 // * work make any representation or warran 13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assum 14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file 15 // * use. Please see the license in the file LICENSE and URL above *
16 // * for the full disclaimer and the limitatio 16 // * for the full disclaimer and the limitation of liability. *
17 // * 17 // * *
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. *
20 // * By using, copying, modifying or distri 20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you ag 21 // * any work based on the software) you agree to acknowledge its *
22 // * use in resulting scientific publicati 22 // * use in resulting scientific publications, and indicate your *
23 // * acceptance of all terms of the Geant4 Sof 23 // * acceptance of all terms of the Geant4 Software license. *
24 // ******************************************* 24 // ********************************************************************
>> 25 //
>> 26 //
>> 27 // $Id:$
>> 28 //
25 // 29 //
26 // G4GeomSplitter << 30 // class G4LogicalVolume
27 // 31 //
28 // Class description: 32 // Class description:
29 // 33 //
30 // Utility template class for splitting of RW 34 // Utility template class for splitting of RW data for thread-safety from
31 // classes: G4LogicalVolume, G4Region, G4VPhys 35 // classes: G4LogicalVolume, G4Region, G4VPhysicalVolume, G4PolyconeSide
32 // G4PolyhedraSide, G4PVReplica. 36 // G4PolyhedraSide, G4PVReplica.
33 37
34 // Author: X.Dong - Initial version from autom << 38 // Author:
>> 39 // 01.25.09 X.Dong: Initial version from automatic MT conversion.
35 // ------------------------------------------- 40 // ------------------------------------------------------------------------
36 #ifndef G4GEOMSPLITTER_HH 41 #ifndef G4GEOMSPLITTER_HH
37 #define G4GEOMSPLITTER_HH 42 #define G4GEOMSPLITTER_HH
38 43
>> 44 #include <stdlib.h>
>> 45
39 #include "globals.hh" 46 #include "globals.hh"
40 #include "geomwdefs.hh" 47 #include "geomwdefs.hh"
41 #include "G4AutoLock.hh" 48 #include "G4AutoLock.hh"
42 49
43 template <class T> // T is the private data f 50 template <class T> // T is the private data from the object to be split
44 class G4GeomSplitter 51 class G4GeomSplitter
45 { 52 {
46 public: 53 public:
47 54
48 G4GeomSplitter() 55 G4GeomSplitter()
49 : sharedOffset(nullptr) << 56 : totalobj(0), totalspace(0), sharedOffset(0)
50 { 57 {
51 G4MUTEXINIT(mutex); 58 G4MUTEXINIT(mutex);
52 } 59 }
53 60
54 T* Reallocate(G4int size) <<
55 { <<
56 totalspace = size; <<
57 return (T *) std::realloc(offset, total <<
58 } <<
59 <<
60 G4int CreateSubInstance() 61 G4int CreateSubInstance()
61 // Invoked by the master or work thread 62 // Invoked by the master or work thread to create a new subinstance
62 // whenever a new split class instance i 63 // whenever a new split class instance is created.
63 { 64 {
64 G4AutoLock l(&mutex); 65 G4AutoLock l(&mutex);
65 ++totalobj; << 66 totalobj++;
66 if (totalobj > totalspace) 67 if (totalobj > totalspace)
67 { 68 {
68 offset = Reallocate(totalspace+512); << 69 totalspace=totalspace + 512;
69 if (offset == nullptr) << 70 offset = (T *) realloc(offset, totalspace * sizeof(T));
>> 71 if (offset == 0)
70 { 72 {
71 G4Exception("G4GeomSPlitter::Create 73 G4Exception("G4GeomSPlitter::CreateSubInstance()",
72 "OutOfMemory", FatalExc 74 "OutOfMemory", FatalException, "Cannot malloc space!");
73 } 75 }
74 sharedOffset = offset; 76 sharedOffset = offset;
75 } 77 }
76 return (totalobj - 1); 78 return (totalobj - 1);
77 } 79 }
78 80
79 void CopyMasterContents() 81 void CopyMasterContents()
80 { 82 {
81 G4AutoLock l(&mutex); 83 G4AutoLock l(&mutex);
82 std::memcpy(offset, sharedOffset, totals << 84 memcpy(offset, sharedOffset, totalspace * sizeof(T));
83 } 85 }
84 86
85 void SlaveCopySubInstanceArray() 87 void SlaveCopySubInstanceArray()
86 // Invoked by each worker thread to copy 88 // Invoked by each worker thread to copy all the subinstance array
87 // from the master thread. 89 // from the master thread.
88 { 90 {
89 G4AutoLock l(&mutex); 91 G4AutoLock l(&mutex);
90 if (offset != nullptr) { return; } << 92 if (offset) { return; }
91 offset = Reallocate(totalspace); << 93 offset = (T *) realloc(offset, totalspace * sizeof(T));
92 if (offset == nullptr) << 94 if (offset == 0)
93 { 95 {
94 G4Exception("G4GeomSplitter::SlaveCopy 96 G4Exception("G4GeomSplitter::SlaveCopySubInstanceArray()",
95 "OutOfMemory", FatalExcept 97 "OutOfMemory", FatalException, "Cannot malloc space!");
96 } 98 }
97 l.unlock(); 99 l.unlock();
98 CopyMasterContents(); 100 CopyMasterContents();
99 } 101 }
100 102
101 void SlaveInitializeSubInstance() 103 void SlaveInitializeSubInstance()
102 // Invoked by each worker thread to crea 104 // Invoked by each worker thread to create the subinstance array and
103 // initialize each subinstance using a p 105 // initialize each subinstance using a particular method defined by
104 // the subclass. 106 // the subclass.
105 { 107 {
106 G4AutoLock l(&mutex); 108 G4AutoLock l(&mutex);
107 if (offset != nullptr) { return; } << 109 if (offset) { return; }
108 offset = Reallocate(totalspace); << 110 offset = (T *) realloc(offset, totalspace * sizeof(T));
109 111
110 if (offset == nullptr) << 112 if (offset == 0)
111 { 113 {
112 G4Exception("G4GeomSplitter::SlaveInit 114 G4Exception("G4GeomSplitter::SlaveInitializeSubInstance()",
113 "OutOfMemory", FatalExcept 115 "OutOfMemory", FatalException, "Cannot malloc space!");
114 } 116 }
115 117
116 for (G4int i=0 ; i<totalspace; ++i) << 118 for (G4int i = 0 ; i < totalspace ; i++)
117 { 119 {
118 offset[i].initialize(); 120 offset[i].initialize();
119 } 121 }
120 } 122 }
121 123
122 void SlaveReCopySubInstanceArray() 124 void SlaveReCopySubInstanceArray()
123 // Invoked by each worker thread at star 125 // Invoked by each worker thread at start of a run (2nd or later)
124 // to copy again all the subinstance arr 126 // to copy again all the subinstance array from the master thread.
125 // To cope with user's changes in Geomet 127 // To cope with user's changes in Geometry - e.g. change of material
126 // in a volume 128 // in a volume
127 { 129 {
128 if (offset == nullptr) << 130 if (!offset)
129 { 131 {
130 SlaveInitializeSubInstance(); 132 SlaveInitializeSubInstance();
131 G4Exception("G4GeomSPlitter::SlaveReCo 133 G4Exception("G4GeomSPlitter::SlaveReCopySubInstance()",
132 "MissingInitialisation", J 134 "MissingInitialisation", JustWarning,
133 "Must be called after Init 135 "Must be called after Initialisation or first Copy.");
134 } 136 }
135 CopyMasterContents(); 137 CopyMasterContents();
136 } 138 }
137 139
138 void FreeSlave() 140 void FreeSlave()
139 // Invoked by all threads to free the su 141 // Invoked by all threads to free the subinstance array.
140 { 142 {
141 if (offset == nullptr) { return; } << 143 if (!offset) { return; }
142 std::free( offset ); << 144 free( offset );
143 offset = nullptr; << 145 offset = 0;
144 } 146 }
145 147
146 // Extension - to allow sharing of workspa 148 // Extension - to allow sharing of workspaces
147 149
148 T* GetOffset() { return offset; } 150 T* GetOffset() { return offset; }
149 151
150 void UseWorkArea( T* newOffset ) 152 void UseWorkArea( T* newOffset )
151 // Use recycled work area - which was cr 153 // Use recycled work area - which was created previously
152 { 154 {
153 if( (offset!=nullptr) && (offset!=newOff << 155 if( offset && offset!=newOffset )
154 { 156 {
155 G4Exception("G4GeomSplitter::UseWorks 157 G4Exception("G4GeomSplitter::UseWorkspace()",
156 "TwoWorkspaces", FatalExc 158 "TwoWorkspaces", FatalException,
157 "Thread already has works 159 "Thread already has workspace - cannot use another.");
158 } 160 }
159 offset= newOffset; 161 offset= newOffset;
160 } 162 }
161 163
162 T* FreeWorkArea() 164 T* FreeWorkArea()
163 // Detach this thread from this Location 165 // Detach this thread from this Location.
164 // The object which calls this method is 166 // The object which calls this method is responsible for it.
165 { 167 {
166 T* offsetRet = offset; << 168 T* offsetRet= offset;
167 offset = nullptr; << 169 offset= 0;
168 return offsetRet; 170 return offsetRet;
169 } 171 }
170 172
171 public: 173 public:
172 174
173 G4GEOM_DLL static G4ThreadLocal T* offset; 175 G4GEOM_DLL static G4ThreadLocal T* offset;
174 176
175 private: 177 private:
176 178
177 G4int totalobj{0}; << 179 G4int totalobj;
178 G4int totalspace{0}; << 180 G4int totalspace;
179 T* sharedOffset; 181 T* sharedOffset;
180 G4Mutex mutex; 182 G4Mutex mutex;
181 }; 183 };
182 184
183 template <typename T> G4ThreadLocal T* G4GeomS << 185 template <typename T> G4ThreadLocal T* G4GeomSplitter<T>::offset = 0;
184 186
185 #endif 187 #endif
186 188