From: Eric Wong <normalperson-rMlxZR9MS24@public.gmane.org>
To: Rainbows! list <rainbows-talk-GrnCvJ7WPxnNLxjTenLetw@public.gmane.org>
Subject: Re: Long Polling
Date: Mon, 7 Dec 2009 12:02:34 -0800 [thread overview]
Message-ID: <20091207200234.GA26894@dcvr.yhbt.net> (raw)
In-Reply-To: <fc2a0ebf0912070840r5ffec0d2r5eb72419ae810f21-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
Alexander <insinium-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> Please, could anybody explain how to create simple long polling app
> with rainbows?
Hi Alexander,
I'm not sure if anybody has actually written one for Rainbows!, but I
think they usually include sleeping or using async.callback like
async_sinatra[1].
For the concurrency models that appear synchronous, you can check out
t/sleep.ru in the test cases for sleep examples:
(case env['rainbows.model']
when :FiberPool, :FiberSpawn
Rainbows::Fiber
when :Revactor
Actor
else # :ThreadPool, :ThreadSpawn
Kernel
end).sleep(nr)
I may put that logic into a env["async.sleep"] callback in places where
env["async.callback"] is not available so the synchronous-looking
concurrency models can all share the same code.
If you're using EventMachine, NeverBlock (and in future versions: Rev,
RevThreadSpawn, RevThreadPool, EventMachineDefer,
EventMachineThreadSpawn), you can use "async.callback" or just use
async_synatra which uses "async.callback" internally.
[1] http://github.com/raggi/async_sinatra
--
Eric Wong
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next prev parent reply other threads:[~2009-12-07 20:03 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-07 16:40 Long Polling Alexander
[not found] ` <fc2a0ebf0912070840r5ffec0d2r5eb72419ae810f21-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-12-07 20:02 ` Eric Wong [this message]
[not found] ` <20091207200234.GA26894-yBiyF41qdooeIZ0/mPfg9Q@public.gmane.org>
2009-12-08 14:26 ` Alexander
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