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[05:34] CIA-5
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zeromq2: 03Martin Sustrik 07master * r0777567 10/ doc/zmq_bind.txt : ENODEV from zmq_bind error described - http://bit.ly/bvC4mu
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[13:23] CIA-5
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zeromq2: 03Martin Lucina 07master * ra7973a2 10/ (doc/zmq_bind.txt doc/zmq_setsockopt.txt): Documentation fixes - http://bit.ly/b03kAA
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[13:27] jldupont
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hi - where is the wire-format for 0mq? I'd like to build an Erlang binding for it.
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[13:27] sustrik
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jldupont: hi
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[13:27] sustrik
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yes, there is
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[13:27] sustrik
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have a look at zmq_tcp(7)
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[13:28] sustrik
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however, wrapping the C library is much simpler than writing it anew in a different language
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[13:28] mato
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it's also much faster :-)
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[13:28] sustrik
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while the API looks simple the entrails are pretty complex
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[13:29] jldupont
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sustrik: hi - I don't want to wrap the C library - there are two ways of interfacing with Erlang: through sockets or through a "driver" written in C.
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[13:29] sustrik
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what's the problem with the latter?
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[13:29] jldupont
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sustrik: through the "C" driver, it is a pain - the polling part is not nice to do...
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[13:30] sustrik
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you mean zmq_poll, right?
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[13:30] jldupont
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writing code to handle sockets is very easy in Erlang.
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[13:30] jldupont
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no: I don't know zmq_poll but I know the pain of interfacing with Erlang through a C driver though.
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[13:30] sustrik
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ok, i see
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[13:31] jldupont
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If there isn't a readily available wire-format doc, then I might reconsider writing a binding library for it.
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[13:31] mato
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jldupont: hi, I would strongly recommend wrapping libzmq using the C API
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[13:32] sustrik
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mato: well, if he wants just a silly sync library he can write it in Erlang
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[13:32] mato
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jldupont: the higher level protocols are still in flux and not documented, so while you can "trivially" implement the framing layer, it won't be very useful
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[13:32] mato
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sustrik: yeah, but what would be the point of that? nothing to do with 0MQ really...
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[13:32] jldupont
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mato: I see. Then maybe 0MQ is not for me at this point then - I'll stick with RabbitMQ.
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[13:33] jldupont
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Thanks, ciao ciao.
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[13:33] sustrik
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jldupond bye
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[13:40] sustrik
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mato: there's a fix for darwin build system in today's email
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[13:40] sustrik
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i haven't apply it
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[13:40] sustrik
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left it to you to check it
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[13:40] mato
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thanks
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[13:40] mato
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haven't got that far in emails yet
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[13:40] sustrik
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sure
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[14:11] mato
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sustrik: where is the email about darwin? I'm missing it
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[14:12] sustrik
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wait a sec
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[14:13] sustrik
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[zeromq-dev] Publish/subscribe example "Operation not supported by device"
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[14:13] sustrik
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5:59 AM
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[14:13] mato
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ah, people not using useful subjects, i hate that
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[14:44] mato
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sustrik: i've fixed it in the jzmq git, i think
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[14:44] mato
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will see what michael replies
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[14:46] sustrik
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thx
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[14:46] sustrik
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mato: you do the highlights?
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[14:46] sustrik
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i was just getting to do it myself
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[14:47] mato
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i'll do it
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[14:47] sustrik
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ok
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[14:47] mato
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i know how listpages works more or less
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[14:47] sustrik
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good, thanks
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[17:47] BusError
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hi guys. Can I use multicast/udp without openpgm ?
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[17:48] sustrik
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hi BusError :)
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[17:48] sustrik
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no, you can't
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[17:48] BusError
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Hey :-)
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[17:48] BusError
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ta !
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[17:49] BusError
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I need the multicast bit, without necessarily the integrity bit
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[17:49] sustrik
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you mean you need unreliable multicast, right?
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[17:49] sustrik
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where messages can disapper randomly
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[17:49] BusError
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yeah. It's for mostly sending sensor data, and with just a bit of control
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[17:50] sustrik
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several people spoke about adding support for that kind of thing to 0MQ
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[17:50] sustrik
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but so far nobody did it
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[17:50] sustrik
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currently you have to do with reliable multicast
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[17:50] BusError
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openpgm looks "heavy" is it just an impression ?
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[17:51] sustrik
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it's dependent on glib which makes it somewhat fat
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[17:52] BusError
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ah yeah. no kidding
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[17:52] sustrik
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afaik there's glib-less version of openpgm being worked on
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[17:52] sustrik
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that may take some time though
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[17:53] BusError
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well I think I'll stick to my poor multicast for now then
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[17:54] sustrik
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well, unless you have some time to plug unreliable multicast to 0mq, you are on your own :(
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[17:56] BusError
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I'm already on WAY too many mailing lists :-)
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[17:56] BusError
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but I'll keep a tab in zeromq, looks fab, good job
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[17:56] sustrik
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thanks
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[17:56] sustrik
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keep eye on it, presumably someone will add unreliable multicast support
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[17:57] BusError
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thanks for your help too
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[17:57] sustrik
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you are welcome
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[17:57] BusError
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well if I get desperate with my system, I'll keep it in mind :-)
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