launchpad-dev team mailing list archive

[Sidnei da Silva <sidnei.da.silva@xxxxxxxxxxxxx>]

On Tue, Aug 10, 2010 at 7:55 PM, Robert Collins
<robert.collins@xxxxxxxxxxxxx> wrote:
> >From our end, I'd love that to look like this:
>  - we receive a request
>  - we commit the *intent*, dispatch to a queue
>  - the request puts itself into long-poll mode
>  - the queue processes the work
>  - the queue callsback the appserver which reactivates the request
> which then delivers the users response
>
> Thats going to need some serious plumbing, a rearrangement of /all/
> the global-request-specific-state and so on. Not on the cards for now.

Only if implemented in the way you describe above. What we do in
Landscape goes as follows:

 - we receive a request
 - we commit the *intent*, dispatch to a queue, generate a page identifier
 - we deliver the response back to the user, basically a page with a spinner
 - a new (XHR) request is fired, in long-poll mode, with the page identifier
 - the queue processes the work
 - the queue notifies that it's done, making the long-poll request
return and delivering the response

-- Sidnei