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G4PDefManager.cc
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27 // $Id: G4PDefManager.cc 101112 2016-11-07 08:19:33Z gcosmo $
28 //
29 //
30 // ------------------------------------------------------------
31 //
32 // GEANT 4 class header file
33 //
34 // ---------------- G4PDefManager ----------------
35 //
36 // Utility template class for splitting RW data for thread-safety from
37 // classes: G4ParticleDefinition, G4VDecayChannel.
38 //
39 // ------------------------------------------------------------
40 // History:
41 // 01.25.2009 Xin Dong: First implementation from automatic MT conversion.
42 // ------------------------------------------------------------
43 
44 #include <stdlib.h>
45 
46 #include "G4PDefManager.hh"
47 #include "globals.hh"
48 #include "pwdefs.hh"
49 #include "G4AutoLock.hh"
50 
52 {
54 }
55 
58 
60 {
62 }
63 
65 // Invoked by the master or work thread to create a new subinstance
66 // whenever a new split class instance is created. For each worker
67 // thread, ions are created dynamically.
68 {
69  G4AutoLock l(&mutex);
70  totalobj++;
71  if (totalobj > slavetotalspace)
72  {
73  l.unlock();
75  l.lock();
76  }
77  return (totalobj - 1);
78 }
79 
81 // Invoked by each worker thread to grow the subinstance array and
82 // initialize each new subinstance using a particular method defined
83 // by the subclass.
84 {
85  G4AutoLock l(&mutex);
86  if (slavetotalspace >= totalobj) { return; }
87  G4int originaltotalspace = slavetotalspace;
88  slavetotalspace = totalobj + 512;
89  offset = (G4PDefData *) realloc(offset, slavetotalspace * sizeof(G4PDefData));
90 
91  if (offset == 0)
92  {
93  G4Exception("G4PDefManager::NewSubInstances()",
94  "OutOfMemory", FatalException, "Cannot malloc space!");
95  }
96 
97  for (G4int i = originaltotalspace; i < slavetotalspace; i++)
98  {
99  offset[i].initialize();
100  }
101 }
102 
104 // Invoked by all threads to free the subinstance array.
105 {
106  if (!offset) { return; }
107  free(offset);
108  offset = 0;
109 }
110 
111 
113 {
114  return offset;
115 }
116 
117 void G4PDefManager::UseWorkArea( G4PDefData* newOffset ) // , G4int numObjects, G4int numSpace)
118 {
119  // Use recycled work area - which was created previously
120  if( offset && offset!=newOffset )
121  {
122  G4Exception("G4PDefManager::UseWorkspace()",
123  "TwoWorkspaces", FatalException,
124  "Thread already has workspace - cannot use another.");
125  }
126  offset= newOffset;
127  // totalobj= numObjects;
128  // totalspace= numSpace;
129 }
130 
131 G4PDefData* G4PDefManager::FreeWorkArea() // G4int* numObjects, G4int* numSpace)
132 {
133  // Detach this thread from this Location
134  // The object which calls this method is responsible for it.
135  //
136  G4PDefData* offsetRet= offset;
137 
138  offset= 0;
139 
140  return offsetRet;
141 }
G4PDefData * FreeWorkArea()
G4ProcessManager * theProcessManager
#define G4MUTEXINIT(mutex)
Definition: G4Threading.hh:177
G4PART_DLL G4ThreadLocalStatic G4PDefData * offset
void NewSubInstances()
G4PDefData * GetOffset()
void UseWorkArea(G4PDefData *newOffset)
#define G4ThreadLocal
Definition: tls.hh:89
int G4int
Definition: G4Types.hh:78
void G4Exception(const char *originOfException, const char *exceptionCode, G4ExceptionSeverity severity, const char *comments)
Definition: G4Exception.cc:41
G4PART_DLL G4ThreadLocalStatic G4int slavetotalspace
G4int CreateSubInstance()
void initialize()