Chris Double wrote:
Pools provide a way of allowing clients to be notified when certain events occur. They do this by providing a 'longpoll' URL that clients connect too. It's a long lived HTTP request that the server sends data down when the event occurs. I haven't implemented this in Ur/Web, I've left it in a seperate server written in Mozart/Oz.
You could use Ur/Web's message passing facility to implement this, if you're willing to ask clients to follow Ur/Web's internal protocol for message passing. The advantage here would be that Ur/Web wouldn't use a process per connection, only a socket per connection.
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