handleListener := func(idx int, ln net.Listener) {
		for {
			conn, err := ln.Accept()
			select {
			case listener.acceptCh <- acceptResult{conn, err, idx}:
			case <-listener.ctxDoneCh:
				return
			}
		}
	}

	// Start separate goroutine for each listener to handle connection.
	for idx, ln := range listener.listeners {
		go handleListener(idx, ln)
	}
}