Signal SIGINT ignored during socket.accept
james.harris.1 at gmail.com
Thu Sep 10 22:12:40 CEST 2015
"Chris Angelico" <rosuav at gmail.com> wrote in message
news:mailman.337.1441913195.8327.python-list at python.org...
> On Fri, Sep 11, 2015 at 5:11 AM, James Harris
> <james.harris.1 at gmail.com> wrote:
>> However, on Windows the recognition of Control-C does not happen
>> until after
>> something connects to the socket.
> This is a known problem on Windows.
> It's entirely possible that a blocking socket-accept call will
> continue to block. There is one rather silly option, and that's to use
> select() to effectively poll for Ctrl-C... or, possibly better, have a
> separate program that shuts down your server (by connecting to it,
> which thus breaks the stranglehold).
Thanks for your help, Chris. Using select() is a very good option. I
tried first without a timeout and even then this version of Windows does
not recognise Control-C until after the select() call returns (which
needs similar prompting as with the accept() call. However, select()
with a timeout allows the code to work both on Windows and Linux.
For anyone else who is looking for this the earlier test code was
port = 8880
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
ready = select.select((s,), (), (), 0.5)
#print '(ready %s)' % repr(ready)
endpoint = s.accept()
except socket.error, details:
print 'Ignoring socket error:', repr(details)
print '(endpoint %s)' % repr(endpoint)
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