C++ <-> C wrapper

[Aaron Kaplan <ka...@xsoft.at>]

Hello,


How would you tacle the problem of writing a Ansi C wrapper for
xerces-c(++)? 

my application will run as apache module and link to other C programs, so
I need a C wrapper. It will also run forever, so mem leaks are a problem.

Currently I use new and delete on DOM_Node* ptrs to pass a reference to
the DOM_Node to the C caller. Is this the right way to wrap up the xerces
classes?

What happens is that the mem keeps growing and growing until the system
trashes.


I am currently using xerces 1.4.0


Let me give you an example wrapper function:

----- snip -----
  typedef void *   pTDomNode;

  // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  pTDomNode TDomGetNextSibling   ( const pTDomNode p ) {
    DOM_Node *s;
    DOM_Node *n = (DOM_Node*)p;    

    if (NULL == p)
      return NULL;

    s = new DOM_Node(n->getNextSibling());
    attach_gc(s);     // attach it to my garbage collector which will
                      // delete it when delete parser is called
    if (s->isNull())
      return NULL;
    else
      return (pTDomNode)s;
  }
  // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

------ snip -----


As far as I can see the _real_ question here is: will the real object
which is referenced by the DOM_Node class be deleted when I delete the
DOM_Node* ?

If not, how can I possibly wrap the C++ classes?

greetings,
aaron.


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