func server(url string, nworkers int) {
var sock mangos.Socket
var err error
var wg sync.WaitGroup
rand.Seed(time.Now().UnixNano())
if sock, err = rep.NewSocket(); err != nil {
die("can't get new rep socket: %s", err)
}
if err = sock.SetOption(mangos.OptionRaw, true); err != nil {
die("can't set raw mode: %s", err)
}
sock.AddTransport(ipc.NewTransport())
sock.AddTransport(tcp.NewTransport())
if err = sock.Listen(url); err != nil {
die("can't listen on rep socket: %s", err.Error())
}
wg.Add(nworkers)
fmt.Printf("Starting %d workers\n", nworkers)
for id := 0; id < nworkers; id++ {
go func(id int) {
defer wg.Done()
serverWorker(sock, id)
}(id)
}
wg.Wait()
}
func server(url string) {
var sock mangos.Socket
var err error
var msg []byte
if sock, err = surveyor.NewSocket(); err != nil {
die("can't get new surveyor socket: %s", err)
}
sock.AddTransport(ipc.NewTransport())
sock.AddTransport(tcp.NewTransport())
if err = sock.Listen(url); err != nil {
die("can't listen on surveyor socket: %s", err.Error())
}
err = sock.SetOption(mangos.OptionSurveyTime, time.Second*2)
if err != nil {
die("SetOption(): %s", err.Error())
}
for {
fmt.Println("SERVER: SENDING DATE SURVEY REQUEST")
if err = sock.Send([]byte("DATE")); err != nil {
die("Failed sending survey: %s", err.Error())
}
for {
if msg, err = sock.Recv(); err != nil {
break
}
fmt.Printf("SERVER: RECEIVED \"%s\" SURVEY RESPONSE\n",
string(msg))
}
}
}
func client(url string, name string) {
var sock mangos.Socket
var err error
var msg []byte
if sock, err = sub.NewSocket(); err != nil {
die("can't get new sub socket: %s", err.Error())
}
sock.AddTransport(ipc.NewTransport())
sock.AddTransport(tcp.NewTransport())
if err = sock.Dial(url); err != nil {
die("can't dial on sub socket: %s", err.Error())
}
// Empty byte array effectively subscribes to everything
err = sock.SetOption(mangos.OptionSubscribe, []byte(""))
if err != nil {
die("cannot subscribe: %s", err.Error())
}
for {
if msg, err = sock.Recv(); err != nil {
die("Cannot recv: %s", err.Error())
}
fmt.Printf("CLIENT(%s): RECEIVED %s\n", name, string(msg))
}
}
func sendRecv(sock mangos.Socket, name string) {
for {
sock.SetOption(mangos.OptionRecvDeadline, 100*time.Millisecond)
recvName(sock, name)
time.Sleep(time.Second)
sendName(sock, name)
}
}
func sendRecvLoop(sock mangos.Socket) {
for {
msg := mangos.NewMessage(len(sendData))
msg.Body = append(msg.Body, sendData...)
err := sock.SendMsg(msg)
if err != nil {
fatalf("SendMsg failed: %v", err)
}
if sendInterval < 0 {
recvLoop(sock)
return
}
now := time.Now()
// maximum wait time is upper bound of recvTimeout and
// sendInterval
if recvTimeout < 0 || recvTimeout > sendInterval {
sock.SetOption(mangos.OptionRecvDeadline,
time.Second*time.Duration(sendInterval))
}
msg, err = sock.RecvMsg()
switch err {
case mangos.ErrRecvTimeout:
case nil:
printMsg(msg)
msg.Free()
default:
fatalf("RecvMsg failed: %v", err)
}
time.Sleep((time.Second * time.Duration(sendInterval)) -
time.Now().Sub(now))
}
}
