[IGSTK-Developers] Reference counting problem in igstkViewNew

[Torleif Sandnes]

Hi.

I have been debugging a memory leak in my application and come to the  
conclusion that the bug probably is not in my code.

I load a volume and assign it to a member variable of my class. Then  
I add it to igstk::ViewNew3D with RequestAddObject(). Internally, the  
ViewNew3D class does the following:

In RequestAddObject():

m_ObjectToBeAdded = pointer;

This increases the reference count of the ObjectRepresentation by one.

In AddObjectProcessing():
m_Objects.push_back(m_ObjectToBeAdded);

stl will use operator= to create a copy of the smartpointer and the  
reference count is increased by one.

In RequestRemoveObject():

m_ObjectToBeRemoved = pointer

operator= is called again and the reference count is now four!

Back to my code again:
I delete the class that holds the ObjectRepresentation and when my  
smart pointer thus goes out of scope, the reference count is  
decreased to three. And we are three reference counts away from  
deleting the memory that the representation holds.

Do you agree that this is a bug?

Regards,

Torleif Sandnes