Re: Integration of Psycopg with XTA

On 09/27/2018 09:57 PM, Christian Ferrari wrote:
> Thanks, for the fix, now the function works, but unfortunately it's a
> dead end in the SWIG realm...Here's the statement:
> http://www.swig.org/Doc2.0/SWIGDocumentation.html#Python_nn18
> [...]
> *However, the inverse operation is not possible, i.e., you can't build a
> SWIG pointer object from a raw integer value.*
> [...]
>
> PyCapsule https://docs.python.org/2/c-api/capsule.html, suggested by
> Federico seems a more viable approach:
> https://bfroehle.com/2011/07/18/python-capsules/
>
> If Psycopg was able to retrieve a PyCapsule, XTA should be able to use
> it and the Python interpreter would be a gateway between two C/C++
> distinct modules (Psycopg and XTA).
> I'm going to perform some experiments in the XTA wrapper before coming
> back to this mail thread.

If you want the capsule, just pull from my report:

https://github.com/fogzot/psycopg2/tree/feature-expose-pgconn

and use the feature-expose-pgconn branch.

federico

--
Federico Di Gregorio federico(dot)digregorio(at)dndg(dot)it
DNDG srl http://dndg.it
Everything will be OK at the end. If it's not OK, it's not the end.
-- Unknown