[zeromq-dev] CZMQ and Server and Client Sockets

Brian Knox bknox at digitalocean.com
Fri Aug 14 17:49:36 CEST 2015

This is great!  I need to make some time to experiment with GoCZMQ with
these - the thread safety opens up some possibilities.

On Fri, Aug 14, 2015 at 9:09 AM, Doron Somech <somdoron at gmail.com> wrote:

> Hi All,
> I added server and client sockets support to CZMQ, you can take a look at
> the change at the following pull request:
> https://github.com/zeromq/czmq/pull/1059
> Server socket is like router socket except you don't have an identity
> frame, each message also include routing id which is an int (vs byte
> array). So each message coming from a server socket include a routing id
> which can be retrieve by calling zframe_routing_id. When sending a message
> you must set the routing id by calling zframe_set_routing_id. You can use
> zframe_send_reply with both the destination frame and the source frame
> (which include the routing id), the method copy the routing id from the
> source frame to the destination frame and then send the message.
> Client socket is same as dealer socket. Client and Server can only talk to
> each other.
> Following is a small example on how to use the new client and server
> sockets:
> https://gist.github.com/somdoron/542b74922f652d229566
> Client and server socket are thread safe (currently only support single
> frame messages but that might change, I think) so if your protocol is
> single frame you can use the server and client sockets from multiple
> threads.
> Polling on multiple client or server sockets is not supported yet.
> In the coming week I plan to also add zproto support and complete the
> polling on multiple sockets.
> Doron
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