// Limit number of concurrent jobs execution. 
// Use worker.Unlimited (0) if you want no limitation.
w := worker.New(worker.OneByOne)
w.ErrHandler = func(e error) {
	log.Println(e)
}
w.AddServer("127.0.0.1:4730")
// Use worker.Unlimited (0) if you want no timeout
w.AddFunc("ToUpper", ToUpper, worker.Unlimited)
// This will give a timeout of 5 seconds
w.AddFunc("ToUpperTimeOut5", ToUpper, 5)

if err := w.Ready(); err != nil {
	log.Fatal(err)
	return
}
go w.Work()

// ...
c, err := client.New("tcp4", "127.0.0.1:4730")
// ... error handling
defer c.Close()
c.ErrorHandler = func(e error) {
	log.Println(e)
}
echo := []byte("Hello\x00 world")
echomsg, err := c.Echo(echo)
// ... error handling
log.Println(string(echomsg))
jobHandler := func(resp *client.Response) {
	log.Printf("%s", resp.Data)
}
handle, err := c.Do("ToUpper", echo, client.JobNormal, jobHandler)
// ...