[pypy-dev] Newb questions about ext module writing

Armin Rigo arigo at tunes.org
Sat Jul 22 12:24:42 CEST 2006


On Fri, Jul 21, 2006 at 06:24:19PM -0700, Lenard Lindstrom wrote:
> In ctypes that is easy: use a bound method as the callback. Does that 
> even work in rctypes?

I'm afraid not, and it's not obvious how this would be compiled to C
code, given that there is no kind of closure in ANSI C.

I don't see how to do that at all, actually :-(  It's somehow a design
problem of the readline lib, which should in theory always pass an extra
void* "closure" arguments to callbacks...

It might be necessary to use hacks like a single global State instance,
storing the "space" the readline lib was initialized with, instead of
one State per space.


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