Please test the SVN branch
Travis Oliphant
oliphant.travis at ieee.org
Thu Oct 12 02:38:51 EDT 2006
I made some fixes to the "asbuffer" code which let me feel better about
exposing it in NumPy (where it is now named int_asbuffer).
This code takes a Python integer and a size and returns a buffer object
that points to that memory. A little test is performed by trying to
read (and possibly write if a writeable buffer is requested) to the
first and last elements of the buffer. Any segfault is trapped and used
to raise a Python error indicating you can't use that area of memory.
It doesn't guarantee you won't shoot yourself, but it does make it more
difficult to segfault Python. Previously a simple int_asbuffer(3423423,
5) would have segfaulted (unless by chance you the memory area 3423423
happens to be owned by Python).
I have not tested the code on other platforms to make sure it works as
expected, so please try and compiled it.
-Travis
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