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85 lines
2.4 KiB
85 lines
2.4 KiB
/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkDynamicLoader.h,v $
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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// .NAME vtkDynamicLoader - class interface to system dynamic libraries
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// .SECTION Description
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// vtkDynamicLoader provides a portable interface to loading dynamic
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// libraries into a process.
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#ifndef __vtkDynamicLoader_h
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#define __vtkDynamicLoader_h
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#include "vtkObject.h"
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//BTX
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// Ugly stuff for library handles
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// They are different on several different OS's
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#if defined(__hpux)
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# include <dl.h> // Needed for special dynamic loading on hp
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typedef shl_t vtkLibHandle;
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#elif defined(_WIN32)
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typedef void* vtkLibHandle;
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#else
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typedef void* vtkLibHandle;
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#endif
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//ETX
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class VTK_COMMON_EXPORT vtkDynamicLoader : public vtkObject
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{
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public:
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static vtkDynamicLoader* New();
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vtkTypeRevisionMacro(vtkDynamicLoader,vtkObject);
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//BTX
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// Description:
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// Load a dynamic library into the current process.
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// The returned vtkLibHandle can be used to access the symbols in the
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// library.
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static vtkLibHandle OpenLibrary(const char*);
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// Description:
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// Attempt to detach a dynamic library from the
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// process. A value of true is returned if it is successful.
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static int CloseLibrary(vtkLibHandle);
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//ETX
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// Description:
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// Find the address of the symbol in the given library
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static void* GetSymbolAddress(vtkLibHandle, const char*);
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// Description:
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// Return the library prefix for the given architecture
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static const char* LibPrefix();
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// Description:
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// Return the library extension for the given architecture
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static const char* LibExtension();
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// Description:
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// Return the last error produced from a calls made on this class.
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static const char* LastError();
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protected:
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vtkDynamicLoader() {};
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~vtkDynamicLoader() {};
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private:
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vtkDynamicLoader(const vtkDynamicLoader&); // Not implemented.
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void operator=(const vtkDynamicLoader&); // Not implemented.
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};
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#endif
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