// Multithreaded Hello World server.
// Uses Goroutines. We could also use channels (a native form of
// inproc), but I stuck to the example.
//
// Author: Brendan Mc.
// Requires: http://github.com/alecthomas/gozmq
package main
import (
"fmt"
"time"
zmq "github.com/alecthomas/gozmq"
)
func main() {
// Launch pool of worker threads
for i := 0;i != 5;i = i + 1 {
go worker()
}
// Prepare our context and sockets
context, _ := zmq.NewContext()
defer context.Close()
// Socket to talk to clients
clients, _ := context.NewSocket(zmq.ROUTER)
defer clients.Close()
clients.Bind("tcp://*:5555")
// Socket to talk to workers
workers, _ := context.NewSocket(zmq.DEALER)
defer workers.Close()
workers.Bind("ipc://workers.ipc")
// connect work threads to client threads via a queue
zmq.Device(zmq.QUEUE, clients, workers)
}
func worker() {
context, _ := zmq.NewContext()
defer context.Close()
// Socket to talk to dispatcher
receiver, _ := context.NewSocket(zmq.REP)
defer receiver.Close()
receiver.Connect("ipc://workers.ipc")
for true {
received, _ := receiver.Recv(0)
fmt.Printf("Received request [%s]\n", received)
// Do some 'work'
time.Sleep(time.Second)
// Send reply back to client
receiver.Send([]byte("World"), 0)
}
}