[C++-sig] shared_ptr and register_ptr_to_python
Marek Denis
marek at octogan.net
Sat Oct 9 12:54:26 CEST 2010
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]
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