itkObjectStore.h
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00017 #ifndef __itkObjectStore_h
00018 #define __itkObjectStore_h
00019
00020 #include "itkObjectFactory.h"
00021 #include "itkObject.h"
00022 #include <vector>
00023
00024 namespace itk {
00025
00059 template < class TObjectType >
00060 class ITK_EXPORT ObjectStore : public Object
00061 {
00062 public:
00064 typedef ObjectStore Self;
00065 typedef Object Superclass;
00066 typedef SmartPointer<Self> Pointer;
00067 typedef SmartPointer<const Self> ConstPointer;
00068
00070 itkNewMacro(Self);
00071
00073 itkTypeMacro(ObjectStore, Object);
00074
00076 typedef TObjectType ObjectType;
00077
00079 typedef std::vector<ObjectType *> FreeListType;
00080
00082 typedef enum {LINEAR_GROWTH = 0, EXPONENTIAL_GROWTH = 1} GrowthStrategyType;
00083
00085 ObjectType *Borrow();
00086
00090 void Return(ObjectType *p);
00091
00094 itkGetMacro(Size, ::size_t);
00095
00099 void Reserve(::size_t n);
00100
00103 void Squeeze();
00104
00106 void Clear();
00107
00109 itkSetMacro(LinearGrowthSize, ::size_t);
00110 itkGetMacro(LinearGrowthSize, ::size_t);
00112
00114 itkSetMacro(GrowthStrategy, GrowthStrategyType);
00115 itkGetMacro(GrowthStrategy, GrowthStrategyType);
00117
00119 void SetGrowthStrategyToExponential()
00120 { this->SetGrowthStrategy(EXPONENTIAL_GROWTH); }
00121
00123 void SetGrowthStrategyToLinear()
00124 { this->SetGrowthStrategy(LINEAR_GROWTH); }
00125
00126 protected:
00127 ObjectStore();
00128 ~ObjectStore();
00129 virtual void PrintSelf(std::ostream& os, Indent indent) const;
00130
00132 ::size_t GetGrowthSize();
00133
00134 struct MemoryBlock
00135 {
00136 MemoryBlock(): Size(0), Begin(0) {}
00137
00138 MemoryBlock(::size_t n) : Size(n)
00139 { Begin = new ObjectType[n]; }
00140
00141 ~MemoryBlock() { }
00142
00143 void Delete()
00144 { if (Begin !=0) delete[] Begin; }
00145
00146 ObjectType *Begin;
00147 ::size_t Size;
00148 };
00149
00150 private:
00151 ObjectStore(const Self&);
00152 void operator=(const Self&);
00153
00154 GrowthStrategyType m_GrowthStrategy;
00155
00156 ::size_t m_Size;
00157 ::size_t m_LinearGrowthSize;
00158
00160 FreeListType m_FreeList;
00161
00163 std::vector<MemoryBlock> m_Store;
00164
00165 };
00166
00167
00168 }
00169
00170 #ifndef ITK_MANUAL_INSTANTIATION
00171 #include "itkObjectStore.txx"
00172 #endif
00173
00174 #endif
00175