Constructing a service/daemon using runit

Question

I need to make a time syncing service for some SysV-based Linux system, but I want to use Ubuntu as a development environment. For this and some other reasons I've decided to use runit as a universal and convenient tool. But here are some troubles I have:

1. How do I make it run in my SysV-based system? It seems it has a module (runsvdir) that needs to be started. I've compiled from sources and done make install as instructed, but see no changes in /etc/init.d/. Do I have to add runsvdir to /etc/init.d manually?
2. How do I make my console app react to control signals? Does it need some kind of special code to do it, or it is enough to do just while(1){waitdata();processdata();}? I've searched for samples but find only bash scripts with sleep command.