[C++-sig] shared_ptr and register_ptr_to_python

[Marek Denis]

Hello list,

What I am trying to achieve is a part of C++ code operating on some data 
nad 'putting' some C++ defined (as well as Python exposed) objects into 
the Python blocking queues.
Is there any possibility for Python to work directly on the C++ objects?
Right now, when I launch the Python function from withing the C++ code, 
passing the POINTER (just normal pointer) od my objects what I can 
observer is a process of creating and copying the new object in Python. 
I can then operate on this object and so on, however I truly believe 
that working on the same object would be faster.
Another problem is that I need to use some polymorphism functionality, 
so I would like to be able to put a object of type Derived from withing 
C++ code, get it from the Python perspective as Base object and launch 
virtual function (which would be Derived::f in this case).
I am still not sure whether passing shared_ptr and using 
register_ptr_to_python is what I really need, wherether there is ANY 
possibility to do what I actually need. In other words I am creating 
objects with C++ but want to operate on them with Python, preferably 
with all the polimorphism and that fancy stuff. Any code snippets, 
suggestions?
BTW. What options shall I pass to g++ in order to use shared_ptr?
Thank you in advance,

-- 
best regards

Marek Denis
[marek at octogan.net]