Re: Problem in calling custom shared library from python

On Thu, Mar 8, 2012 at 3:25 PM, Thomas Heller <[email protected]> wrote:
>
>
> The h2xml/xml2py tools parse the header file and then look for the
> functions in the shared library, but they only look for the unmangled
> names - they don't support C++ name mangling.
>
> So, it would be best (if you can control the C/C++ source code) to
> change the header so that the functions are compiled with unmangled
> names. OTOH, the simple header file that you show above does not really
> justify the use of h2xml/xml2py, instead you can trivially call the
> functions with ctypes.
>

Thanks for the reply! Now that you say it aloud, it is obvious. :) The
mangling is exactly because of the c++ compiler. I tried the same thing
with C, and there is no problem in calling the functions with their real
name, So, in that respect problem solved.

For those c++ mangled types, the XML output from gcc-xml has all the needed
information to format tables for python to make the calls with real
function names. But, I take from your comment that this is not the task,
nor purpose of the h2xml/xml2py pair. For that purpose I could write my own
quick parser, if I see real need for it.

And yes, the example was very simple and the tools would not be really
needed for this case. But it was only for testing before I move the code
into larger projects. Just to get the principles working. :)

- Jarkko

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