#13311: alarm() doesn't work for Cython code
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Reporter: alexc | Owner:
cremona
Type: defect | Status:
new
Priority: major | Milestone:
sage-5.4
Component: elliptic curves | Resolution:
Keywords: alarm elliptic curve curves ellipticcurve | Work issues:
Report Upstream: N/A | Reviewers:
Authors: | Merged in:
Dependencies: | Stopgaps:
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Comment (by jdemeyer):
The problem is that the `SIGALRM` handling is completely independent of
the usual signal handling, hence it doesn't work. It simply raises a
Python-level `KeyboardInterrupt`, but that's it. It doesn't interact with
any of the sophisticated `sig_on()`/`sig_off()` stuff.
As an ugly work-around, try using `signal_after_delay()` from
`sage.tests.interrupt`, which generates an ''actual'' interrupt.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13311#comment:4>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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