func RecvJson(soc *zmq3.Socket, v interface{}) error {
rawData, err := soc.Recv(0)
log.Printf("Received data [%s]\n", rawData)
if err != nil {
return err
}
return json.Unmarshal([]byte(rawData), &v)
}
func SendJsonNoReply(soc *zmq3.Socket, v interface{}) (int, error) {
length, err := SendJson(soc, v)
if err != nil {
return 0, err
}
_, err2 := soc.Recv(0)
if err2 != nil {
return length, err2
}
return length, err
}
func dump(soc *zmq.Socket) {
fmt.Println("----------------------------------------")
for {
// Process all parts of the message
message, _ := soc.Recv(0)
// Dump the message as text or binary
fmt.Printf("[%03d] ", len(message))
if all_char.MatchString(message) {
fmt.Print(message)
} else {
for i := 0; i < len(message); i++ {
fmt.Printf("%02X ", message[i])
}
}
fmt.Println()
more, _ := soc.GetRcvmore()
if !more {
break
}
}
}
func TestPoller(t *testing.T) {
var sb, sc *zmq.Socket
defer func() {
for _, s := range []*zmq.Socket{sb, sc} {
if s != nil {
s.SetLinger(0)
s.Close()
}
}
}()
sb, err := zmq.NewSocket(zmq.PAIR)
if err != nil {
t.Fatal("NewSocket:", err)
}
err = sb.Bind("tcp://127.0.0.1:9737")
if err != nil {
t.Fatal("sb.Bind:", err)
}
sc, err = zmq.NewSocket(zmq.PAIR)
if err != nil {
t.Fatal("NewSocket:", err)
}
err = sc.Connect("tcp://127.0.0.1:9737")
if err != nil {
t.Fatal("sc.Connect:", err)
}
poller := zmq.NewPoller()
idxb := poller.Add(sb, 0)
idxc := poller.Add(sc, 0)
if idxb != 0 || idxc != 1 {
t.Errorf("idxb=%d idxc=%d", idxb, idxc)
}
if pa, err := poller.PollAll(100 * time.Millisecond); err != nil {
t.Error("PollAll 1:", err)
} else if len(pa) != 2 {
t.Errorf("PollAll 1 len = %d", len(pa))
} else if pa[0].Events != 0 || pa[1].Events != 0 {
t.Errorf("PollAll 1 events = %v, %v", pa[0], pa[1])
}
poller.Update(idxb, zmq.POLLOUT)
poller.UpdateBySocket(sc, zmq.POLLIN)
if pa, err := poller.PollAll(100 * time.Millisecond); err != nil {
t.Error("PollAll 2:", err)
} else if len(pa) != 2 {
t.Errorf("PollAll 2 len = %d", len(pa))
} else if pa[0].Events != zmq.POLLOUT || pa[1].Events != 0 {
t.Errorf("PollAll 2 events = %v, %v", pa[0], pa[1])
}
poller.UpdateBySocket(sb, 0)
content := "12345678ABCDEFGH12345678ABCDEFGH"
// Send message from client to server
if rc, err := sb.Send(content, zmq.DONTWAIT); err != nil {
t.Error("sb.Send DONTWAIT:", err)
} else if rc != 32 {
t.Error("sb.Send DONTWAIT:", err32)
}
if pa, err := poller.PollAll(100 * time.Millisecond); err != nil {
t.Error("PollAll 3:", err)
} else if len(pa) != 2 {
t.Errorf("PollAll 3 len = %d", len(pa))
} else if pa[0].Events != 0 || pa[1].Events != zmq.POLLIN {
t.Errorf("PollAll 3 events = %v, %v", pa[0], pa[1])
}
// Receive message
if msg, err := sc.Recv(zmq.DONTWAIT); err != nil {
t.Error("sb.Recv DONTWAIT:", err)
} else if msg != content {
t.Error("sb.Recv msg != content")
}
poller.UpdateBySocket(sb, zmq.POLLOUT)
poller.Update(idxc, zmq.POLLIN)
if pa, err := poller.PollAll(100 * time.Millisecond); err != nil {
t.Error("PollAll 4:", err)
} else if len(pa) != 2 {
t.Errorf("PollAll 4 len = %d", len(pa))
} else if pa[0].Events != zmq.POLLOUT || pa[1].Events != 0 {
t.Errorf("PollAll 4 events = %v, %v", pa[0], pa[1])
}
err = sc.Close()
sc = nil
if err != nil {
t.Error("sc.Close:", err)
}
err = sb.Close()
sb = nil
if err != nil {
t.Error("sb.Close:", err)
}
}
func bounce(server, client *zmq.Socket) (msg string, err error) {
content := "12345678ABCDEFGH12345678abcdefgh"
// Send message from client to server
rc, err := client.Send(content, zmq.SNDMORE|zmq.DONTWAIT)
if err != nil {
return "client.Send SNDMORE|DONTWAIT:", err
}
if rc != 32 {
return "client.Send SNDMORE|DONTWAIT:", err32
}
rc, err = client.Send(content, zmq.DONTWAIT)
if err != nil {
return "client.Send DONTWAIT:", err
}
if rc != 32 {
return "client.Send DONTWAIT:", err32
}
// Receive message at server side
msg, err = server.Recv(0)
if err != nil {
return "server.Recv 1:", err
}
// Check that message is still the same
if msg != content {
return "server.Recv 1:", errors.New(fmt.Sprintf("%q != %q", msg, content))
}
rcvmore, err := server.GetRcvmore()
if err != nil {
return "server.GetRcvmore 1:", err
}
if !rcvmore {
return "server.GetRcvmore 1:", errors.New(fmt.Sprint("rcvmore ==", rcvmore))
}
// Receive message at server side
msg, err = server.Recv(0)
if err != nil {
return "server.Recv 2:", err
}
// Check that message is still the same
if msg != content {
return "server.Recv 2:", errors.New(fmt.Sprintf("%q != %q", msg, content))
}
rcvmore, err = server.GetRcvmore()
if err != nil {
return "server.GetRcvmore 2:", err
}
if rcvmore {
return "server.GetRcvmore 2:", errors.New(fmt.Sprint("rcvmore == ", rcvmore))
}
// The same, from server back to client
// Send message from server to client
rc, err = server.Send(content, zmq.SNDMORE)
if err != nil {
return "server.Send SNDMORE:", err
}
if rc != 32 {
return "server.Send SNDMORE:", err32
}
rc, err = server.Send(content, 0)
if err != nil {
return "server.Send 0:", err
}
if rc != 32 {
return "server.Send 0:", err32
}
// Receive message at client side
msg, err = client.Recv(0)
if err != nil {
return "client.Recv 1:", err
}
// Check that message is still the same
if msg != content {
return "client.Recv 1:", errors.New(fmt.Sprintf("%q != %q", msg, content))
}
rcvmore, err = client.GetRcvmore()
if err != nil {
return "client.GetRcvmore 1:", err
}
if !rcvmore {
return "client.GetRcvmore 1:", errors.New(fmt.Sprint("rcvmore ==", rcvmore))
}
// Receive message at client side
msg, err = client.Recv(0)
if err != nil {
return "client.Recv 2:", err
}
// Check that message is still the same
if msg != content {
return "client.Recv 2:", errors.New(fmt.Sprintf("%q != %q", msg, content))
}
rcvmore, err = client.GetRcvmore()
if err != nil {
return "client.GetRcvmore 2:", err
}
if rcvmore {
return "client.GetRcvmore 2:", errors.New(fmt.Sprint("rcvmore == ", rcvmore))
}
return "OK", nil
}
func bounce(server, client *zmq.Socket) {
content := "12345678ABCDEFGH12345678abcdefgh"
// Send message from client to server
rc, err := client.Send(content, zmq.SNDMORE)
if checkErr(err) {
return
}
if rc != 32 {
checkErr(errors.New("rc != 32"))
}
rc, err = client.Send(content, 0)
if checkErr(err) {
return
}
if rc != 32 {
checkErr(errors.New("rc != 32"))
}
// Receive message at server side
msg, err := server.Recv(0)
if checkErr(err) {
return
}
// Check that message is still the same
if msg != content {
checkErr(errors.New(fmt.Sprintf("%q != %q", msg, content)))
}
rcvmore, err := server.GetRcvmore()
if checkErr(err) {
return
}
if !rcvmore {
checkErr(errors.New(fmt.Sprint("rcvmore ==", rcvmore)))
return
}
// Receive message at server side
msg, err = server.Recv(0)
if checkErr(err) {
return
}
// Check that message is still the same
if msg != content {
checkErr(errors.New(fmt.Sprintf("%q != %q", msg, content)))
}
rcvmore, err = server.GetRcvmore()
if checkErr(err) {
return
}
if rcvmore {
checkErr(errors.New(fmt.Sprint("rcvmore == ", rcvmore)))
return
}
// The same, from server back to client
// Send message from server to client
rc, err = server.Send(content, zmq.SNDMORE)
if checkErr(err) {
return
}
if rc != 32 {
checkErr(errors.New("rc != 32"))
}
rc, err = server.Send(content, 0)
if checkErr(err) {
return
}
if rc != 32 {
checkErr(errors.New("rc != 32"))
}
// Receive message at client side
msg, err = client.Recv(0)
if checkErr(err) {
return
}
// Check that message is still the same
if msg != content {
checkErr(errors.New(fmt.Sprintf("%q != %q", msg, content)))
}
rcvmore, err = client.GetRcvmore()
if checkErr(err) {
return
}
if !rcvmore {
checkErr(errors.New(fmt.Sprint("rcvmore ==", rcvmore)))
return
}
// Receive message at client side
msg, err = client.Recv(0)
if checkErr(err) {
return
}
// Check that message is still the same
if msg != content {
checkErr(errors.New(fmt.Sprintf("%q != %q", msg, content)))
}
rcvmore, err = client.GetRcvmore()
if checkErr(err) {
return
}
if rcvmore {
checkErr(errors.New(fmt.Sprint("rcvmore == ", rcvmore)))
return
}
}