macournoyer - Latest Comments in Pusher & Async With Thin - macournoyer's blog

Re: Pusher & Async With Thin - macournoyer's blog

macournoyer — Sat, 11 Dec 2010 16:26:08 -0000

It's now a gem https://github.com/macourno...

Re: Pusher & Async With Thin - macournoyer's blog

Vincent Landgraf — Sat, 11 Dec 2010 03:18:55 -0000

Thx for the writeup, but why is AsyncResponse not defined in the Thin webserver. Why do i have to define it myself?

Re: Pusher & Async With Thin - macournoyer's blog

mattkaufman — Sat, 10 Oct 2009 09:19:33 -0000

great, thanks for the sinatra add on...

Re: Pusher & Async With Thin - macournoyer's blog

raggi — Tue, 15 Sep 2009 19:34:55 -0000

pop into #eventmachine on freenode sometime, we can probably help you out

Re: Pusher & Async With Thin - macournoyer's blog

collintmiller — Tue, 15 Sep 2009 17:43:11 -0000

I am using a modified deferrable body, the issue I'm running into is I don't want to return a standard [status, headers, deferrable_body] response.

With my proxy I want to play the "remote" response back directly over the "local" request.

My rack handler looks like this:

def call(env)
request = Rack::Request.new
# using a modified DeferrableBody so I can control the callback used.
socket = EM.connect request.host, request.port, RequestProxy, DeferrableBody(@env['async.chunk_callback'])
socket.send_data @env['http.request_body'] # plain, unparsed FULL http request
end

class TCPSocketProxy < EventMachine::Connection
def initialize socket # socket is the async chunk callback
@socket = socket
end

def recieve_data data
@socket.call data
#
EM.next_tick { close_conncetion } if finished?
end

def unbind
@socket.succeed
end

def finished?
# I have implementations of these, but need to redo them with a proper HTTPResponse parser
return false unless headers_recieved?
return true if not_modified?
return false unless content_length
return true if body_length = content_length
end
end

Re: Pusher & Async With Thin - macournoyer's blog

raggi — Tue, 15 Sep 2009 04:24:36 -0000

Use a deferrable body?

Re: Pusher & Async With Thin - macournoyer's blog

collintmiller — Mon, 14 Sep 2009 20:33:49 -0000

I've been doing more with this callback lately and I've found a use-case that I couldn't figure out how to do without a modification to Thin.

http://gist.github.com/187018

I'm using rack to build an http proxy. The proxy works rougly like this:

Request comes in.
Open Socket to the host and port of the Request.
Replay entire Request Body onto Socket.
As data comes back over Socket, write to Request's Async Chunk Callback.

Any thoughts about better ways to do this?

Re: Pusher & Async With Thin - macournoyer's blog

raggi — Wed, 09 Sep 2009 11:34:32 -0000

Awesome writeup Marc :-)

Re: Pusher & Async With Thin - macournoyer's blog

collintmiller — Wed, 01 Jul 2009 04:34:24 -0000

@macournoyer

:) Awesome. This post and the resources linked to within have proven invaluable :)

http://github.com/collin/or...

Have it almost working with the existing Orbited client code :)

Anybody have a notion of when we can expect to have a unified asynchronous callback api in Rack? Thin is nice, but it'd be even nicer if more rack servers could be expected to run this stuff.

Re: Pusher & Async With Thin - macournoyer's blog

macournoyer — Wed, 24 Jun 2009 22:29:02 -0000

Hey Collin, that looks like a really cool project!
Of course fell free to use DeferrableBody. I stole it from raggi initially.

Re: Pusher & Async With Thin - macournoyer's blog

collintmiller — Wed, 24 Jun 2009 21:14:06 -0000

Oh excellent!
Mind if I use your DeferrableBody code in http://github.com/collin/or...

Re: Pusher & Async With Thin - macournoyer's blog

macournoyer — Thu, 11 Jun 2009 14:32:12 -0000

hey thx guys! glad you like it.

I fixed the typo.

Re: Pusher & Async With Thin - macournoyer's blog

superjared — Thu, 11 Jun 2009 13:21:24 -0000

Thanks for the writeup!

There is a typo:

EM.next_tick dp