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G4INCLAllocationPool.hh
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25 //
26 // INCL++ intra-nuclear cascade model
27 // Alain Boudard, CEA-Saclay, France
28 // Joseph Cugnon, University of Liege, Belgium
29 // Jean-Christophe David, CEA-Saclay, France
30 // Pekka Kaitaniemi, CEA-Saclay, France, and Helsinki Institute of Physics, Finland
31 // Sylvie Leray, CEA-Saclay, France
32 // Davide Mancusi, CEA-Saclay, France
33 //
34 #define INCLXX_IN_GEANT4_MODE 1
35 
36 #include "globals.hh"
37 
45 #ifndef G4INCLALLOCATIONPOOL_HH
46 #define G4INCLALLOCATIONPOOL_HH
47 
48 #if defined(INCL_USE_ALLOCATION_POOL) || defined(INCLXX_IN_GEANT4_MODE)
49 
50 #include <stack>
51 #include <new>
52 #include <cstddef>
53 
54 namespace G4INCL {
55 
56  template<typename T>
58  public:
60  if(!theInstance)
62  return *theInstance;
63  }
64 
65  T *getObject() {
66  if(theStack.empty())
67  return static_cast<T*>(::operator new(sizeof(T)));
68  else {
69  T *t = theStack.top();
70  theStack.pop();
71  return t;
72  }
73  }
74 
75  void recycleObject(T *t) {
76  theStack.push(t);
77  }
78 
79  void clear() {
80  while(!theStack.empty()) { /* Loop checking, 10.07.2015, D.Mancusi */
81  ::operator delete(theStack.top());
82  theStack.pop();
83  }
84  }
85 
86  protected:
88  virtual ~AllocationPool() {
89  clear();
90  }
91 
93 
94  std::stack<T*> theStack;
95 
96  };
97 
98  template<typename T>
100 
101 }
102 
103 #define INCL_DECLARE_ALLOCATION_POOL(T) \
104  public: \
105  static void *operator new(size_t /* s */) { \
106  ::G4INCL::AllocationPool<T> &allocator = ::G4INCL::AllocationPool<T>::getInstance(); \
107  return allocator.getObject(); \
108  } \
109  static void operator delete(void *a, size_t /* s */) { \
110  ::G4INCL::AllocationPool<T> &allocator = ::G4INCL::AllocationPool<T>::getInstance(); \
111  allocator.recycleObject(static_cast<T *>(a)); \
112  }
113 
114 #else // defined(INCL_USE_ALLOCATION_POOL) || defined(INCLXX_IN_GEANT4_MODE)
115 #define INCL_DECLARE_ALLOCATION_POOL(T)
116 #endif
117 
118 #endif // G4INCLALLOCATIONPOOL_HH
static AllocationPool & getInstance()
#define G4ThreadLocal
Definition: tls.hh:89
static G4ThreadLocal AllocationPool * theInstance