accpet io/timeout err

[Jamlee]

Hi, it is alway say 'accept tcp [::]:9001: i/o timeout', it may be need to check the error type

subnet/subnet/server.go

Lines 107 to 109 in e330ba9

	if !s.isShuttingDown {
	log.Printf("Listener err: %s\n", err.Error())
	}

i try to give solution like below:

              if err != nil {
			if !s.isShuttingDown {
				if !err.(net.Error).Timeout() {
					log.Infof("Listener err: %s", err.Error())
				}
			}
		} else {
			s.handleClient(conn)
		}