[Twisted-web] asynchronous WSGI implementation
manlio_perillo at libero.it
Fri Apr 9 06:32:42 EDT 2010
I have started to write an asynchronous WSGI implementation for
The code is available from a Mercurial repository:
The WSGI application is executed in the main Twisted thread, and the
application will be able to directly use Twisted features.
The reason I'm doing this is because I have written a WSGI
implementation for Nginx:
and I would like to have a *similar* implementation written in pure
Python, for testing purpose.
I have some questions:
* What's the use of
__metaclass__ = type
in twisted.web.wsgi ?
* Is request.content always buffered (in memory or temporary file)?
* In my ngx_http_wsgi_module, when the yielded string can not be sent to
the client (because OS buffer is full), I suspend the execution of the
application, and resume it when the socket is ready.
I want to do the same with Twisted, and the way to go is to be a
However I don't know how to implement and use the IPushProducer
interface for _WSGIResponse.
By the way: it seems that the WSGI implementation in Twisted Web has
* close method of the application iterator is not called in case of
* _sendResponseHeaders does not check if start_response has been called
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