[Python-Dev] threadsafe patch for asynchat (original) (raw)

Fredrik Lundh fredrik at pythonware.com
Wed Feb 8 08:44:25 CET 2006

Steve Holden wrote:

> What is the reason that people want to use threads when they can have > poll/select-style message processing? Why does Zope require threads? > IOW, why would anybody want a "threadsafe patch for asynchat"? > In case the processing of events needed to block? If I'm processing web requests in an async* dispatch loop and a request needs the results of a (probably lengthy) database query in order to generate its output, how do I give the dispatcher control again to process the next asynchronous network event?

The usual answer is "process the request in a thread". That way the dispatcher can spring to life for each event as quickly as needed.

but why do such threads have to talk to asyncore directly ?

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