func main() {
done := make(chan bool)
//create active/standby servant
activeServant := NewServant("servant1", Active, done)
standbyServant := NewServant("servant2", Standby, done)
//connect servants by connecting their proxies configured with filters
filter := &ServantFilter{"/Sys/Ctrl/Heartbeat"} //only allow heartbeats between active/standby
proxy1 := router.NewProxy(activeServant.Rot, "", filter, nil)
proxy2 := router.NewProxy(standbyServant.Rot, "", filter, nil)
proxy1.Connect(proxy2)
//wait for servants to exit
<-done
<-done
}
func (s *Servant) Run(done chan bool) {
addr := ServantAddr1
if s.role == Standby {
addr = ServantAddr2
}
os.Remove(addr)
l, _ := net.Listen("unix", addr)
//keep accepting client conn and connect local router to it
for {
conn, err := l.Accept()
if err != nil {
fmt.Println(err)
continue
}
fmt.Println(s.name, "connect one client")
//use flow control
proxy := router.NewProxy(s.Rot, "", nil, nil)
err = proxy.ConnectRemote(conn, router.GobMarshaling, router.FlowControl)
if err != nil {
fmt.Println(err)
continue
}
}
//in fact never reach here
s.Rot.Close()
l.Close()
done <- true
}