1 // (c) Bernhard Tittelbach, 2013
6 zmq "github.com/vaughan0/go-zmq"
10 // ---------- ZeroMQ Code -------------
12 func ZmqsInit(cmd_port, sub_port string) (ctx *zmq.Context, cmd_chans, sub_chans *zmq.Channels) {
15 ctx, err = zmq.NewContext()
19 //close only on panic, otherwise leave open:
20 defer func(){ if r:= recover(); r != nil { ctx.Close(); panic(r) } }()
22 cmd_sock, err := ctx.Socket(zmq.Req)
26 defer func() { if r:= recover(); r != nil { cmd_sock.Close(); panic(r) } }()
28 cmd_sock.SetRecvTimeout(2 * time.Second)
29 cmd_sock.SetSendTimeout(2 * time.Second)
31 sub_sock, err := ctx.Socket(zmq.Sub)
35 defer func() { if r:= recover(); r != nil { sub_sock.Close(); panic(r) } }()
37 if err = cmd_sock.Connect(cmd_port); err != nil {
41 sub_sock.Subscribe(subfilter)
43 if err = sub_sock.Connect(sub_port); err != nil {
47 cmd_chans = cmd_sock.ChannelsBuffer(10)
48 sub_chans = cmd_sock.ChannelsBuffer(10)
50 go zmqsHandleError(cmd_chans, sub_chans)
54 func zmqsHandleError(cmd_chans, sub_chans *zmq.Channels) {
57 case cmd_error := <- cmd_chans.Errors():
61 case sub_error := <- sub_chans.Errors():