multiple callbacks per server

[joebedard]

Currently, each server (or subscriber) in simple is limited to one callback. This means that if I have more than one service (on the same node), I need to create an additional server object, which uses an additional port. For servers with many services, this could result in a complex configuration--especially if there is other server software running on that node and competing for the ports.

It would be nice to have a single server object and then add multiple services to it like this:

// assume service callbacks are defined here

int main(int argc, char * argv[]) try
{
   simple::Service<simple_msgs::Point> service1{ service1_callback };
   simple::Service<simple_msgs::Image> service2{ service2_callback };
   simple::Server server{ "tcp://*:5000", {service1, service2} };
   std::cout << "Press a key to exit.\n";
   std::cin.get();
   return 0;
}

[SalvoVirga]

This would require some extensive modifications, like also allowing to receive different message types on the same socket. I will keep it in the log for the future!