[mod_python] ConnectionHandler sigsegv (fwd)

Gregory (Grisha) Trubetskoy grisha at modpython.org
Tue Jul 1 12:12:58 EST 2003

On Tue, 1 Jul 2003, Robert Sanderson wrote:

> > I think your only option is to read a byte at a time, making sure that
> > when you receivie a complete frame/packet/whatever you stop reading so as
> > to not block indefinitely.
> Yep, I've now successfully implemented a Z39.50 connection handler using
> mod_python and PyZ3950 under Apache

Cool (even though I don't know what Z39.50 is :-) )

> using this technique, though it's not pretty having to try to parse a
> PDU after reading in each byte.

This is a pretty common technique in C, but in Python it is definitely
very inefficient because every "byte" is really a string... You could
probably get some improvement from using Python buffer(). I imagine this
will be a fairly common problem for people who implement connections, so
if you have any ideas on how it can be improved, please be sure to share
them on the list.


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