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itkDynamicLoader.h

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00001 /*========================================================================= 00002 00003 Program: Insight Segmentation & Registration Toolkit 00004 Module: $RCSfile: itkDynamicLoader.h,v $ 00005 Language: C++ 00006 Date: $Date: 2003/09/10 14:29:06 $ 00007 Version: $Revision: 1.21 $ 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 __itkDynamicLoader_h 00018 #define __itkDynamicLoader_h 00019 00020 #include "itkMacro.h" 00021 00022 // Ugly stuff for library handles. 00023 // They are different on several different OS's 00024 #if defined(__hpux) 00025 # include <dl.h> 00026 namespace itk 00027 { 00028 typedef shl_t LibHandle; 00029 } // end namespace itk 00030 #elif defined(_WIN32) 00031 #include "itkWindows.h" 00032 00033 namespace itk 00034 { 00035 typedef HMODULE LibHandle; 00036 } // end namespace itk 00037 #elif defined(__powerpc) 00038 namespace itk 00039 { 00040 typedef ConnectionID LibHandle; 00041 } // end namespace itk 00042 #else 00043 namespace itk 00044 { 00045 typedef void* LibHandle; 00046 } // end namespace itk 00047 #endif 00048 00049 #include "itkObject.h" 00050 #include "itkObjectFactory.h" 00051 00052 namespace itk 00053 { 00054 00065 class ITKCommon_EXPORT DynamicLoader : public Object 00066 { 00067 public: 00069 typedef DynamicLoader Self; 00070 typedef Object Superclass; 00071 typedef SmartPointer<Self> Pointer; 00072 typedef SmartPointer<const Self> ConstPointer; 00073 00075 itkNewMacro(Self); 00076 00078 itkTypeMacro(DynamicLoader,Object); 00079 00083 static LibHandle OpenLibrary(const char*); 00084 00087 static int CloseLibrary(LibHandle); 00088 00090 static void* GetSymbolAddress(LibHandle, const char*); 00091 00093 static const char* LibPrefix(); 00094 00096 static const char* LibExtension(); 00097 00099 static const char* LastError(); 00100 00101 protected: 00102 DynamicLoader() {}; 00103 ~DynamicLoader() {}; 00104 00105 private: 00106 DynamicLoader(const Self&); //purposely not implemented 00107 void operator=(const Self&); //purposely not implemented 00108 00109 }; 00110 00111 } // end namespace itk 00112 00113 #endif

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