On 11/11/06, Jean-Paul Calderone <[EMAIL PROTECTED]> wrote:
On Sat, 11 Nov 2006 11:06:07 -0800, joe kim <[EMAIL PROTECTED]> wrote:
>Hi all,
>
>I had a question about implementing hanging-gets. A hanging get is
>basically when the server "hangs" onto the http request until either a
>certain period of time or until there is an event is triggered. It is
>a hack for implementing event driven messaging on top of HTTP.
>
>Alex Russell references it in his blog: http://alex.dojotoolkit.org/?p=545
>
>What's the best way to implement hanging-gets using twisted? I have a
>web page that I want to immediately update everytime there is a change
>to the data. Making asynchronous javascript requests every second do
>not really make sense, but I was thinking that if the javascript
>continually made asynchronous requests to the server and the server
>implemented hanging-gets, then that would be a good solution.
>
>Any thoughts are appreciated.
See http://divmod.org/trac/wiki/DivmodNevow/Athena
The basic mechanism in twisted.web which this relies on is a renderHTTP
method which returns NOT_DONE_YET and arranges for request.finish() to
be called at some later time.
Jean-Paul
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Thanks for the link. I was using HTTPFactory, HTTPChannel,
http.Request for my implementation. I have not tried Athena yet. I
will give it a try.
Joe
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