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Date: Wed, 4 May 2011 19:02:40 +1000
Subject: Re: Aborting Python from C code
From: Chris Angelico <rosuav@gmail.com>
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On Sat, Apr 30, 2011 at 7:29 PM, Dylan Evans <dylan@contentfree.info> wrote=
:
> I think i see what you are trying to do but it depends on the environment
> and your goals.
> Generally i think you need to=A0separate=A0your code by forking (or perha=
ps you
> have already done that?),
> then you can run a check to see if the process died as expected. I don't
> know though, this not much
> information to go on, but if you are running untrusted code then you need=
 to
> be able to isolate and kill it.

Well, I've gone with a slight variant on this. If the Python script
doesn't terminate in a timely manner, the process will be killed with
a longjmp straight from the signal handler (the setjmp having been
done long long ago back when the process initialized itself). So
Py_Finalize() will be called, but no other Python-related functions
_at all_, and the process promptly terminates. I'm assuming that
Python will flush out all its state on process termination (that is,
it doesn't hang onto any system-global resources).

Thanks for the advice!

Chris Angelico