[issue846388] Check for signals during regular expression matches

[Ralf Schmitt]

Ralf Schmitt added the comment:

I'm attaching a working patch against 2.5.1 and a short test program.


#! /usr/bin/env python

import signal
import re
import time


def main():
    num=28 # need more than 60s on a 2.4Ghz core 2
    r=re.compile("a?"*num+"a"*num)

    signal.signal(signal.SIGALRM, signal.default_int_handler)
    signal.alarm(1)
    stime = time.time()
    try:
        r.match("a"*num)
    except KeyboardInterrupt:
        assert time.time()-stime<3
    else:
        raise RuntimeError("no keyboard interrupt")

if __name__=='__main__':
    main()

Added file: http://bugs.python.org/file8679/patch

____________________________________
Tracker <report at bugs.python.org>
<http://bugs.python.org/issue846388>
____________________________________
-------------- next part --------------
A non-text attachment was scrubbed...
Name: patch
Type: application/octet-stream
Size: 1044 bytes
Desc: not available
Url : http://mail.python.org/pipermail/python-bugs-list/attachments/20071102/0dd1d420/attachment.obj