[pypy-dev] Call rpython from outside

[Aleksandr Koshkin]

Thanks for your reply. I have reworked my code a bit - now it uses CStruct
instead of Struct.
https://github.com/magniff/rere/blob/master/rere/vm/vm_main.py#L92
Now it fails with a rather obscure error https://pastebin.com/MZkni9bU
Anyway, Maciej, see you at PyConRu 17)

2017-07-11 18:20 GMT+03:00 Maciej Fijalkowski <fijall at gmail.com>:

> Sorry wrong, lltype.GcStruct is GC managed, lltype.Struct should work.
>
> However, please use rffi.CStruct (as it's better defined) and
> especially rffi.CArray, since lltype.Array contains length field
>
> On Tue, Jul 11, 2017 at 6:49 PM, Maciej Fijalkowski <fijall at gmail.com>
> wrote:
> > lltype.Struct is a GC-managed struct, you don't want to have this as a
> > part of API (use CStruct)
> >
> > On Mon, Jul 10, 2017 at 6:15 PM, Aleksandr Koshkin
> > <tinysnippets at gmail.com> wrote:
> >> Here is a link to a function that buggs me.
> >> https://github.com/magniff/rere/blob/master/rere/vm/vm_main.py#L110
> >> I am using this headers for CFFI:
> >> https://github.com/magniff/rere/blob/master/rere/build/vm_headers.h
> >>
> >> 2017-07-10 17:03 GMT+03:00 Aleksandr Koshkin <tinysnippets at gmail.com>:
> >>>
> >>> Sup, guys.
> >>> I want my rpython function to be invokable from outside world
> specifically
> >>> be python. I have wrapped my function with entrypoint_highlevel and it
> >>> appeared in shared object. So far so good. As a first argument this
> function
> >>> takes a pointer to a C struct, and there is a problem. I have precisely
> >>> recreated this struct in RPython as a lltypes.Struct (not
> rffi.CStruct) and
> >>> annotated by this object my entrypoint signature, but it seams that
> some
> >>> fields of the passed struct are messed up (shifted basically). Could
> it be
> >>> because I used Struct instead of CStruct? I am using CFFI as a binding
> >>> generator.
> >>>
> >>> --
> >>> Kind regards, Aleksandr Koshkin.
> >>
> >>
> >>
> >>
> >> --
> >> Kind regards, Aleksandr Koshkin.
> >>
> >> _______________________________________________
> >> pypy-dev mailing list
> >> pypy-dev at python.org
> >> https://mail.python.org/mailman/listinfo/pypy-dev
> >>
>



-- 
Kind regards, Aleksandr Koshkin.
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