a class for checking if the datastorage is really thread safe More...

Collaboration diagram for ItkDeleteEventListener:

Public Member Functions
	ItkDeleteEventListener (mitk::DataStorage *ds)
void	SetNode (mitk::DataNode *_Node)
void	OnObjectDelete (const itk::Object *caller, const itk::EventObject &)
Protected Attributes
mitk::DataNode *	m_Node
mitk::DataStorage::Pointer	m_DataStorage
unsigned int	m_DeleteObserverTag

Detailed Description

a class for checking if the datastorage is really thread safe

Therefore it listens to a node contained in the datastorage. when this node gets removed and deleted, this class gets informed by calling OnObjectDelete(). in OnObjectDelete() an empty node gets added. this must not cause a deadlock

Definition at line 92 of file mitkDataStorageTest.cpp.

Constructor & Destructor Documentation

ItkDeleteEventListener::ItkDeleteEventListener ( mitk::DataStorage * ds ) [inline]

Definition at line 94 of file mitkDataStorageTest.cpp.

  :   m_Node(0), m_DataStorage(ds),
  m_DeleteObserverTag(0)
  {
  }

Member Function Documentation

void ItkDeleteEventListener::OnObjectDelete	(	const itk::Object *	caller,
		const itk::EventObject &
	)		`[inline]`

Definition at line 113 of file mitkDataStorageTest.cpp.

References m_DataStorage, m_Node, and mitk::DataNode::New().

Referenced by SetNode().

  {
    mitk::DataNode::Pointer node = mitk::DataNode::New();
    m_DataStorage->Add( node ); // SHOULD NOT CAUSE A DEADLOCK!
    m_DataStorage->Remove( node ); // tidy up: remove the empty node again

    m_Node = 0;
  }

void ItkDeleteEventListener::SetNode ( mitk::DataNode * _Node ) [inline]

Definition at line 100 of file mitkDataStorageTest.cpp.

References m_DeleteObserverTag, m_Node, and OnObjectDelete().

Referenced by TestDataStorage().

  {
    if(m_Node)
      return;

    m_Node = _Node;
    itk::MemberCommand<ItkDeleteEventListener>::Pointer onObjectDelete =
      itk::MemberCommand<ItkDeleteEventListener>::New();

    onObjectDelete->SetCallbackFunction(this, &ItkDeleteEventListener::OnObjectDelete);
    m_DeleteObserverTag = m_Node->AddObserver(itk::DeleteEvent(), onObjectDelete);
  }