itkSingletonMacro.h File Reference

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Macros
#define	itkGetGlobalDeclarationMacro(Type, VarName)   static Type * Get##VarName##Pointer();
#define	itkGetGlobalInitializeMacro(Class, Type, VarName, SingletonName, Init)
#define	itkGetGlobalSimpleMacro(Class, Type, Name)   itkGetGlobalInitializeMacro(Class, Type, Name, Class, (void)0)
#define	itkGetGlobalValueMacro(Class, Type, Name, Value)   itkGetGlobalInitializeMacro(Class, Type, Name, Name, *m_##Name = Value)
#define	itkInitGlobalsMacro(VarName)

Macro Definition Documentation

#define itkGetGlobalDeclarationMacro	(		Type,
			VarName
	)		static Type * Get##VarName##Pointer();

Definition at line 34 of file itkSingletonMacro.h.

#define itkGetGlobalInitializeMacro	(		Class,
			Type,
			VarName,
			SingletonName,
			Init
	)

Value:

Type * Class::Get##VarName##Pointer() \
{ \
    if( m_##VarName == nullptr ) \
      { \
      static auto setLambda = [](void * a) \
        { \
        delete m_##VarName; \
        m_##VarName = static_cast<Type*>(a); \
        }; \
      static auto deleteLambda = []() \
        { \
        delete m_##VarName; \
        m_##VarName = nullptr; \
        }; \
      auto* old_instance = SingletonIndex::GetInstance()->GetGlobalInstance<Type>(#SingletonName); \
      m_##VarName = Singleton<Type>( #SingletonName , setLambda, deleteLambda); \
      if( old_instance == nullptr) \
        { \
        Init; \
        }\
    } \
  return m_##VarName; \
}

Definition at line 43 of file itkSingletonMacro.h.

#define itkGetGlobalSimpleMacro	(		Class,
			Type,
			Name
	)		itkGetGlobalInitializeMacro(Class, Type, Name, Class, (void)0)

Definition at line 37 of file itkSingletonMacro.h.

#define itkGetGlobalValueMacro	(		Class,
			Type,
			Name,
			Value
	)		itkGetGlobalInitializeMacro(Class, Type, Name, Name, *m_##Name = Value)

Definition at line 40 of file itkSingletonMacro.h.

#define itkInitGlobalsMacro

(

VarName

)

Value:

{ \
  static auto * staticGlobals = Get##VarName##Pointer (); \
  (void) staticGlobals; \
  }

itkSingletonMacro.h defines macros that are used to declare and define global variables across ITK with a global map that is used to synchronize this variables across multiple instantiations of ITK if necessary. Note: this is rarely necessary.

Definition at line 28 of file itkSingletonMacro.h.