Re: How to add code to a C wrapper function generated by SWIG (for Python)
Rokas Kupstys via Swig-user <[email protected]> Fri, 22 Jan 2021 12:36:57 +0200
| Newsgroups | gmane.comp.programming.swig |
|---|---|
| Message-ID | <[email protected]> |
How would that work? %ignore would prevent generation of wrappers for ignored thing. I dont see how ignored destructor would then be called by wrapper code at appropriate time. -- Rokas Kupstys On 2021-01-22 12:12, Ian Boyd wrote: > Another option I think I have seen before is to use %ignore to prevent > Swig from generating a destructor and then use %extend to implement a > custom one. > > On Fri, 22 Jan 2021 at 10:00, Rokas Kupstys via Swig-user > <[email protected] > <mailto:[email protected]>> wrote: > > Maybe %newobject + %newfree typemaps would work for you in this case? > > -- Rokas Kupstys > > On 2021-01-22 10:48, lille stor wrote: >> >> Hi, >> >> When generating a Python wrapper using SWIG, many C wrapper >> functions are generated. One of them is called >> "|_wrap_delete_Cursor" which looks like this| (I have stripped it >> to the bare minimum): >> >> |SWIGINTERN PyObject *_wrap_delete_Cursor(PyObject *self, >> PyObject *args) { // some generated C code by SWIG // need to >> add code to call a C function to release allocated memory } | >> >> This function is called when the object Cursor (created in >> Python) no longer exists. Now, my problem is that I have some >> allocated memory on the C side that needs to be released before >> existing the function (otherwise, there will be memory leaks). >> >> Do you know how I can add a line of code this function to release >> memory? All help is really welcome! >> >> L. >> >> >> >> _______________________________________________ >> Swig-user mailing list >> [email protected] <mailto:[email protected]> >> https://lists.sourceforge.net/lists/listinfo/swig-user <https://lists.sourceforge.net/lists/listinfo/swig-user> > _______________________________________________ > Swig-user mailing list > [email protected] > <mailto:[email protected]> > https://lists.sourceforge.net/lists/listinfo/swig-user > <https://lists.sourceforge.net/lists/listinfo/swig-user> > _______________________________________________ Swig-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/swig-user