Hi Pieter, > ZeroMQ does not directly support this, you would build it as an > application on top, defining your own protocol to connect clients and > server.
Yes. I have the protocol defined. I just can not figure out what type of ZeroMQ pattern I can use to accomplish this. Pub/sub doesn't work. REQ/REP isn't what I want because there is no immediate reply to the client. With a 'regular' socket, I'd listen on a port, accept new connections and have a new socket to link with a message client. ZeroMQ handles all this for me and the message based transport which is great. But, I'm still at a loss for how I can accomplish this. Maybe I need to use the PAIR pattern, but can I have multiple clients connect to the same port? I'm not sure how to identify the message with a client because all I have is the message. Dan > I'm designing something that looks a bit like this, with peer-to-peer > message flow, and rough-grained security based on "streams" of data > rather than a topic tree. It needs to work over multicast, meaning > that you can't apply access controls at the server side. > > -Pieter > > On Wed, Jun 30, 2010 at 2:54 AM, ernie<[email protected]> wrote: >> I am looking at building a message dispatch system. The clients connect >> to a server on a well known port and subscribe to 'topics'. Clients can >> also generate 'topics' of their own which are published to other >> subscribed clients. >> >> I need the subscription filtering to be done on the server rather than >> the individual clients. One reason is "psuedo-security" -- some of the >> 'topics' I do not want to be pushed to certain clients. Another reason >> is the 'topic' subscriptions will be sparse -- only a few of the main >> clients will be subscribing to individual 'topics'. >> >> Looking at the message patterns available in zeroMQ, I'm not clear that >> I can accomplish this. I need to be able to identify which client >> generated a message and route it to subscribed clients. I can not do >> this with the pub/sub pattern. Since there is no response, I do not see >> that I can use the req/rep pattern. I am new to zeromq, so I figure I >> am not understanding how or if I can implement this. Any suggestions >> would be appreciated. >> >> _______________________________________________ >> 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 > _______________________________________________ zeromq-dev mailing list [email protected] http://lists.zeromq.org/mailman/listinfo/zeromq-dev
