// Serve on a given port
//
// The server will log to the default logger and will gracefully terminate on
// receipt of an interrupt or kill signal.
//
// The following URLs are defined:
// /
// /healthz
// /varz
// /streamz
// /birpc
// /debug/pprof
//
// Setting port to 0 will start the server on an ephemeral port. The assigned
// port will be logged.
func ServeForever(port int) error {
l, err := vnet.SignalListener(port)
if err != nil {
log.Errorf("govtil/net/server: failed to open port: %v", err)
return err
}
return ServeListenerForever(l)
}
func LocalListener() (net.Listener, int, error) {
l, err := vnet.SignalListener(0)
if err != nil {
return nil, 0, err
}
_, aps, err := net.SplitHostPort(l.Addr().String())
if err != nil {
return nil, 0, err
}
port, err := strconv.Atoi(aps)
if err != nil {
return nil, 0, err
}
return l, port, nil
}
func TestBiRPC(t *testing.T) {
// setup RPC
arith := new(Arith)
srv := rpc.NewServer()
srv.Register(arith)
clientch := make(chan *rpc.Client)
http.Handle("/birpc", Handler(srv, clientch))
// Start server
const port = 11235
l, err := vnet.SignalListener(port)
if err != nil {
t.Fatalf("Server: %v", err)
}
go http.Serve(l, http.DefaultServeMux)
// Dial to self
dialClient, err := Dial("ws://localhost:"+fmt.Sprint(port)+"/birpc", srv)
if err != nil {
t.Fatalf("Dial: %v", err)
}
sch := <-clientch // server's client
// call from dialers side
prod := Product{}
err = dialClient.Call("Arith.Multiply", &Args{2, 4}, &prod)
if err != nil {
t.Fatalf("Call: %v", err)
}
if prod.R != 8 {
t.Errorf("bad prod '%d', expected %d", prod.R, 8)
}
// call from server's side
quot := Quotient{}
err = sch.Call("Arith.Divide", &Args{16, 2}, ")
if err != nil {
t.Fatalf("Call: %v", err)
}
if quot.Quo != 8 || quot.Rem != 0 {
t.Errorf("bad quot %v", quot)
}
}