func Poller(lock *sync.Mutex, ss *spacesaving.Rate, pc *pcap.Pcap) {
w := bufio.NewWriter(os.Stdout)
for _ = range time.Tick(3 * time.Second) {
stat, _ := pc.Getstats()
lock.Lock()
fmt.Fprintf(w, "\033c")
elements := ss.GetAll(time.Now())
for i, e := range elements {
fmt.Fprintf(w, "%60s\t%f\t%f\n", e.Key, e.LoRate, e.HiRate)
if i > 40 {
break
}
}
fmt.Fprintf(w, "\n")
fmt.Fprintf(w, "received:%v dropped:%v/%v (software/interface)\n",
stat.PacketsReceived, stat.PacketsDropped, stat.PacketsIfDropped)
w.Flush()
lock.Unlock()
}
}
