[pypy-dev] framework gcs and NULL termination
mwh at python.net
Fri Mar 10 19:12:38 CET 2006
So earlier on today I built the first pypy-c using for its memory
management one of the frameworks written by Carl last summer, which I
think is pretty cool!
After one more bugfix, it seems reasonably solid, running at least a
few of CPython's regression tests fine, if a little slowly for now.
However, all is not perfect. The build occasionally dies with a
random (PyPy level) OSError and string formatting with floats doesn't
quite work right:
I think the cause of these is related: rpython strings are not always
being NULL terminated, and this causes fun when they get passed to
functions expecting a C string.
This lead to a "how did this ever work" moment: for example, I don't
see how ll_join_strs ensures NULL termination, even with the
refcounting GC. But float formatting works fine with that, so maybe
I'm barking up the wrong tree here.
ZAPHOD: You know what I'm thinking?
ZAPHOD: Neither do I. Frightening isn't it?
-- The Hitch-Hikers Guide to the Galaxy, Episode 11
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