[pypy-dev] offtopic, ontopic, ...

[Stefan Behnel]

Amaury Forgeot d'Arc, 14.02.2012 18:45:
> 2012/2/14 Stefan Behnel
>> if PyPy can't come up with a fast way to
>> interface with C code, it's bound to die.
> 
> But it certainly can! For example PyPy implements the _ssl and pyexpat
> modules,
> which are interfaces to the openssl and expat libraries.
> And it does that by generating C code that calls the corresponding
> functions.
> 
> See for example the code for SSLObject.write():
> https://bitbucket.org/pypy/pypy/src/default/pypy/module/_ssl/interp_ssl.py#cl-157
> it calls the C function SSL_write(), which is declared like this:
> https://bitbucket.org/pypy/pypy/src/default/pypy/rlib/ropenssl.py#cl-255
> This kind of code is not difficult to write (in this case, it's a simple
> translation of
> CPython modules) and is close enough to C when you really need it.
> For example, it's possible to use macros when they look like function calls,
> or embed C snippets.

Ok, then I take it that this would be the preferred Python+FFI approach for
interfacing, right? ctypes is out of the loop?

Stefan