[Twisted-Python] xmlrpc protocoll instanze per connection?

exarkun at twistedmatrix.com exarkun at twistedmatrix.com
Thu Aug 5 11:01:23 EDT 2010

On 02:21 pm, petshmidt at googlemail.com wrote:
>On Thu, Aug 5, 2010 at 3:32 PM, Alan Franzoni <mailing at franzoni.eu> 
>>On 8/4/10 1:30 PM, Pet wrote:
>>>AFAIU this works only if Factory is subclassing
>>>protocol.ServerFactory, XMLRPCFactory subclasses server.Site, where
>>>protocol attribute is not present
>>server.Site subclasses  http.HTTPFactory which, in turns, subclasses
>>by the way, if I now understand your question: just subclass XMLRPC 
>>create your own xmlrpc resource class by adding methods like
>>then add such handler to your server.Site, and you're done. Your 
>>will be invoked once per request.
>what I've tried to do is to have objects, which were members of
>XMLRPC. And these objects would have some internal state which is
>isolated per request. But each new request has changed this objects,
>because xmlrpc is created once and not for each request or connection.
>I've solved this by modifying render_POST where I create those objects
>before calling requested function and so they lives only there without
>being overwritten by new request. Ugh... It's might be ugly, but works
>for me

If you want a new XMLRPC instance per request, then create a new one per 
request.  http://twistedmatrix.com/documents/current/web/howto/web-in-60 
/dynamic-dispatch.html may help.

Re-using a single XMLRPC instance and mangling its state in render_POST 
will break as soon as your server receives two overlapping requests.


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