itkDynamicLoader.h

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/*=========================================================================
 *
 *  Copyright NumFOCUS
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *         https://www.apache.org/licenses/LICENSE-2.0.txt
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *=========================================================================*/
#ifndef itkDynamicLoader_h
#define itkDynamicLoader_h
 
#include "itkObject.h"
#include "itkObjectFactory.h"
#include "itksys/DynamicLoader.hxx"
 
namespace itk
{
 
// BTX
using LibHandle = itksys::DynamicLoader::LibraryHandle;
// Cannot use this as this is a void (*)() but ITK old API used to be void*
using SymbolPointer = itksys::DynamicLoader::SymbolPointer;
// ETX
 
class ITKCommon_EXPORT DynamicLoader : public Object
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(DynamicLoader);
 
  using Self = DynamicLoader;
  using Superclass = Object;
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;
 
  itkNewMacro(Self);
 
  itkOverrideGetNameOfClassMacro(DynamicLoader);
 
  static LibHandle
  OpenLibrary(const char *);
 
  static int CloseLibrary(LibHandle);
 
  static void *
  GetSymbolAddress(LibHandle, const char *);
 
  static const char *
  LibPrefix();
 
  static const char *
  LibExtension();
 
  static const char *
  LastError();
 
protected:
  DynamicLoader();
  ~DynamicLoader() override;
};
} // end namespace itk
 
#endif