00001 /*========================================================================= 00002 00003 Program: Insight Segmentation & Registration Toolkit 00004 Module: $RCSfile: itkObjectStore.h,v $ 00005 Language: C++ 00006 Date: $Date: 2009-04-25 12:24:12 $ 00007 Version: $Revision: 1.5 $ 00008 00009 Copyright (c) Insight Software Consortium. All rights reserved. 00010 See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details. 00011 00012 This software is distributed WITHOUT ANY WARRANTY; without even 00013 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 00014 PURPOSE. See the above copyright notices for more information. 00015 00016 =========================================================================*/ 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 itkGetConstMacro(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 itkGetConstMacro(LinearGrowthSize, ::size_t); 00112 00114 itkSetMacro(GrowthStrategy, GrowthStrategyType); 00115 itkGetConstMacro(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() { } // Purposely does *not* free memory 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&); //purposely not implemented 00152 void operator=(const Self&); //purposely not implemented 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 } // end namespace itk 00169 00170 #ifndef ITK_MANUAL_INSTANTIATION 00171 #include "itkObjectStore.txx" 00172 #endif 00173 00174 #endif 00175