> On Apr 13, 2020, at 11:26 AM, Daniel Holth <dho...@gmail.com> wrote:
>
> Was it regular cffi or cffi's embedding API, which is used a bit differently
> than regular cffi, that "seems to only solve a fraction of the problem"? Was
> just playing around with the embedding API and was impressed.
>
> In Python:
>
> @ffi.def_extern()
> def uwsgi_pyexample_init():
> print("init called")
>
> return 0
>
> In C (embedded in the same plugin):
>
> CFFI_DLLEXPORT struct uwsgi_plugin pyexample_plugin = {
> .init = uwsgi_pyexample_init
> };
>
> Seems to be happily importing and exporting APIs. Interpreter starts the
> first time a @ffi.def_extern() function is called.
>
> https://cffi.readthedocs.io/en/latest/embedding.html
> <https://cffi.readthedocs.io/en/latest/embedding.html>
>
> https://github.com/unbit/uwsgi/blob/f6ad0c6dfe431d91ffe365bed3105ed052bef6e4/plugins/pyexample/pyexample_plugin.py
>
> <https://github.com/unbit/uwsgi/blob/f6ad0c6dfe431d91ffe365bed3105ed052bef6e4/plugins/pyexample/pyexample_plugin.py>
I might need to understand cffi embedding more to really answer your question -
and it’s entirely possible cffi can do this - but as a simple example:
How would I call a Python function from the C++ application that returns a
Python object to C++ and then call a method on that Python object from C++?
My specific example is that I create Python handlers for Qt windows and then
from the Qt/C++ I call methods on those Python objects from C++ such as “handle
mouse event”.
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