// Dialer knows how to open a streaming connection to a server.
type Dialer interface {

	// Dial opens a streaming connection to a server using one of the protocols
	// specified (in order of most preferred to least preferred).
	Dial(protocols ...string) (Connection, string, error)
}

// UpgradeRoundTripper is a type of http.RoundTripper that is able to upgrade

			string(got), err, expected)
	}

	// Slow client that should timeout.
	t1 := time.Now()
	conn, err := net.Dial("tcp", ts.Listener.Addr().String())
	if err != nil {
		return fmt.Errorf("Dial: %v", err)
	}
	buf := make([]byte, 1)
	n, err := conn.Read(buf)
	conn.Close()
	latency := time.Since(t1)
	if n != 0 || err != io.EOF {

		if len(cfg.TLSClientConfig.ServerName) == 0 {
			cfg.TLSClientConfig.ServerName = serverName
		}

		delegateDialer := cfg.Dial
		if delegateDialer == nil {
			var d net.Dialer
			delegateDialer = d.DialContext
		}
		cfg.Dial = func(ctx context.Context, network, addr string) (net.Conn, error) {
			if addr == host {

			}
			return fd, nil
		case syscall.SOCK_DGRAM:
			if err := fd.listenDatagram(ctx, laddr, ctrlCtxFn); err != nil {
				fd.Close()
				return nil, err
			}
			return fd, nil
		}
	}
	if err := fd.dial(ctx, laddr, raddr, ctrlCtxFn); err != nil {
		fd.Close()
		return nil, err
	}
	return fd, nil
}

func (fd *netFD) ctrlNetwork() string {
	switch fd.net {
	case "unix", "unixgram", "unixpacket":

	if !testableNetwork("unixgram") {
		t.Skip("unixgram test")
	}

	c1 := newLocalPacketListener(t, "unixgram")
	defer os.Remove(c1.LocalAddr().String())
	defer c1.Close()

	c2, err := Dial("unixgram", c1.LocalAddr().String())
	if err != nil {
		t.Fatal(err)
	}
	defer os.Remove(c2.LocalAddr().String())
	defer c2.Close()

	for _, genericRead := range []bool{false, true} {
		n, err := c2.Write(nil)

	url    string
}

func buildClient(address, path string) CNIEventClient {
	c := &http.Client{
		Transport: &http.Transport{
			DialContext: func(_ context.Context, _, _ string) (net.Conn, error) {
				return net.Dial("unix", address)
			},
		},
		Timeout: 1000 * time.Millisecond,
	}
	eventC := CNIEventClient{
		client: c,
		url:    "http://unix" + path,
	}
	return eventC
}

	q.Enqueue(types.UID("foo4"), 1*time.Minute)
	expected := []types.UID{types.UID("foo1"), types.UID("foo2")}
	compareResults(t, expected, q.GetWork())
	compareResults(t, []types.UID{}, q.GetWork())
	// Dial the time to 1 hour ahead.
	clock.Step(time.Hour)
	expected = []types.UID{types.UID("foo3"), types.UID("foo4")}
	compareResults(t, expected, q.GetWork())
	compareResults(t, []types.UID{}, q.GetWork())
}

		sotype = syscall.SOCK_STREAM
	case "unixgram":
		sotype = syscall.SOCK_DGRAM
	case "unixpacket":
		sotype = syscall.SOCK_SEQPACKET
	default:
		return nil, UnknownNetworkError(net)
	}

	switch mode {
	case "dial":
		if laddr != nil && laddr.isWildcard() {
			laddr = nil
		}
		if raddr != nil && raddr.isWildcard() {
			raddr = nil
		}
		if raddr == nil && (sotype != syscall.SOCK_DGRAM || laddr == nil) {

	subProcess.Stderr = &b

	if err := subProcess.Start(); err != nil {
		t.Log(b.String())
		t.Fatal(err)
	}
	defer subProcess.Process.Kill()

	var conn net.Conn
	for {
		var err error
		conn, err = net.Dial("tcp", host)
		if err == nil {
			break
		}
		time.Sleep(500 * time.Millisecond)
	}
	defer conn.Close()

	payload := []byte("foobar")
	if _, err := conn.Write(payload); err != nil {
		t.Fatal(err)
	}

	// If they aren't set then the documented contract is to use Dial or DialTLS, even
	// though they are deprecated. Therefore, if any of these are set, we should obey
	// the contract and dial using the regular round-trip instead. Otherwise, we'll try
	// to fall back on the Fetch API, unless it's not available.