I've a C where some relationship between "object" exists, like this
pseudocode:
c_structA {
c_structB *bstructs;
}
c_structB ...
I've defined some methods to handle the memory management of these
structures:
new_c_structA
new_c_strucB
free_c_structA
free_c_structB
And also other functions (mehods) like:
c_structA_append(c_structA *a, c_structB *b)
I've to wrap these structures in cython but I encounter some problems with
the reference counting and the garbage collector.
class A:
cdef c_structA *this
def append(self, b):
c_structA_append(self.this, b.this)
class B:
...
My problem is in particular, when I call append from the class A, the
reference count of b doesn't increment (since the aggregation is done in C),
so b is garbage collected and I lost any reference of c_structB (b.this)
causing a segfault when accessing it. One solution would be for example
this:
def append(self, b):
c_structA_append(self.this, b.this)
self.blist.append(b)
However it seems to be a dirty solution that brings some code duplication,
what do you think about it?
Are there any best practice to handle this kind of situations?
( I'm sorry for the bad example and bad naming I choose, if you don't
understand the question I can rewrite it).
Thank you!
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