Publish side of 'Publish/Subscribe'
A simple forwarder, i.e. a device that connects to a publisher and provides an additional endpoint for more subscribers to connect to. A forwarder, hence, is a means to extend the capacity of a publisher.
Context- The zeromq context
Service- The name of the forwarder
LinkType) - access point for subscribers; usually, you want to bind the address, such that subscribers connect to it.
LinkType) - access point for the publisher; usually, you want to connect to the publisher.
OnError_- Error handler
Controla - Control loop