Re: [pygccxml-development] Help needed with embedding

[Roman Y. <rom...@gm...>]

On Tue, Aug 4, 2009 at 2:02 PM, Berserker<ber...@ho...> wrote:
> I don't understand why do you think that this question should be posted in
> the Boost.Python mailing list.

Sorry, it seems that I need few more hours to sleep

> "allow_threads" is just the code extracted from
> http://libtorrent.svn.sourceforge.net/viewvc/libtorrent/trunk/bindings/python/src/gil.hpp?revision=2460&view=markup
> ,
> maybe a property like "adaptor" or "visitor" for each Py++ function would do
> the work, but I'm not so skilled with the Py++ API and probably there are
> other better solutions, btw something like:
>
>> tm = foo_class.mem_fun( 'test_method' )
>> tm.adaptor = "my_adaptor"
>
> and then Py++ will create:
>
>> boost::python::class_< Foo >("Foo")
>>    .def("test_method_1", my_adaptor(&Foo::test_method_1))
>
> Another solution (probably more "clean") could be a list of Templates for
> each boost::python API (boost::python::class_::def,
> boost::python::class_::add_property ecc...) so that we can customize them,
> what about?

Let me think about it. I will back to you in a day or two. I need to
check how it could be integrated with Py++.


>> Yes:
>> http://pygccxml.svn.sourceforge.net/viewvc/pygccxml/pyplusplus_dev/pyplusplus/function_transformers/templates.py?revision=1467&view=markup
>>
>> The short version: if you applied a transformation, than everything
>> should be done in it.
>>
>> The long version: you can modify the templates so it will release the
>> GIL. You can do it without changing Py++ code.
>
> Thanks, that was useful! Btw I have to change the "whole template" and pay
> attention to keep it aligned in the next releases of Py++ (that's ok for the
> moment),

More or less. You can change it value without touching Py++ code.
For example:

import pyplusplus import function_transformation as ft
from ft import templates as ft_tmpl

ft_tmpl.<class name>.<template> = NewTemplate

You will only have to preserve the keywords and add your keywords/code.

> what about adding $pre_call and $post_call params as in the
> "default" Template?

As above: let me think about it and I will back to you soon, okey?

-- 
Roman Yakovenko
C++ Python language binding
http://www.language-binding.net/