Matthew, If the current in-process implementation of Erlang ZeroMQ binding doesn't work for you (is it because you are concerned with stability issues?) you can certainly take advantage of zmq_poll() for communicating with an Erlang VM through a pair of pipes. See this tutorial on how to accomplish that task with a simple C program: http://trapexit.org/How_to_use_ei_to_marshal_binary_terms_in_port_programs
On the port side, you need to add two file descriptors 0 and 1 to the event sets given to zmq_poll() call and check for ZMQ_POLLIN or ZMQ_POLLOUT on corresponding file descriptors when zmq_poll() call returns (just as the manual says: http://api.zeromq.org/zmq_poll.html). There's nothing special about this use of zmq_poll() for writing a port program. Serge On 7/21/2010 8:58 AM, Matthew Metnetsky wrote: > Hi Chris, > > On Wed, 2010-07-21 at 03:48 +0000, chris wrote: >> Matthew Metnetsky<met<at> uberstats.com> writes: >>> I was wondering if anyone has used zmq_poll() as the communication loop >>> for an Erlang port? If so, any pointers? > >> Beyond that, Sustrik's zeromq is not fully stable yet. In my testing, I'm >> not >> confident in running any type of system using erlang and zeromq at this >> point. >> I don't see this flushing out for several more weeks at least - really >> dependent >> on Serge or Dhammika becoming interested in bringing the bindings up to >> snuff. >> I've done what I could to make it *work*, but at this point I am looking at >> other solutions for my needs as this combination of technology isn't going to >> become mature enough in my time frame. >> >> Out of curiosity, you said "Erlang Ports" in plural. What ones are you aware >> of? > > Thanks for the information, but I guess I wasn't very clear. I'm going > to need to create a erlang port (1) and was looking to replace the hard > read() loop with zmq_poll() and was wondering if anyone had done it. > It's basically a select() replacement, but as I'm very new to 0MQ I > figured there might be some pointers worth being aware of. > > Thanks, > > ~ Matthew > > (1) http://www.erlang.org/documentation/doc-5.8/doc/tutorial/c_port.html > > _______________________________________________ > zeromq-dev mailing list > [email protected] > http://lists.zeromq.org/mailman/listinfo/zeromq-dev _______________________________________________ zeromq-dev mailing list [email protected] http://lists.zeromq.org/mailman/listinfo/zeromq-dev
