// Sets read deadline
func (c *DeadlineConn) setReadDeadline() {
	if c.readDeadline > 0 {
		c.SetReadDeadline(time.Now().UTC().Add(c.readDeadline))
	}
}

func (c *DeadlineConn) setWriteDeadline() {
	if c.writeDeadline > 0 {
		c.SetWriteDeadline(time.Now().UTC().Add(c.writeDeadline))
	}
}

// Read - reads data from the connection using wrapped buffered reader.
func (c *DeadlineConn) Read(b []byte) (n int, err error) {

	if err != nil {
		panic(err)
	}
	err = c.SetWriteDeadline(time.Now().Add(time.Second))
	if err != nil {
		panic(err)
	}
	c.Write(data)
}

func sendHello(c *net.UnixConn) {
	ack := &zdsapi.ZdsHello{
		Version: zdsapi.Version_V1,
	}
	data, err := proto.Marshal(ack)
	if err != nil {
		panic(err)
	}
	err = c.SetWriteDeadline(time.Now().Add(time.Second))
	if err != nil {
		panic(err)

			if err != nil {
				gridLogIf(ctx, fmt.Errorf("ws writeMessage: %w", err))
				return
			}
			PutByteBuffer(toSend)
			err = conn.SetWriteDeadline(time.Now().Add(connWriteTimeout))
			if err != nil {
				gridLogIf(ctx, fmt.Errorf("conn.SetWriteDeadline: %w", err))
				return
			}
			_, err = buf.WriteTo(conn)
			if err != nil {
				gridLogIf(ctx, fmt.Errorf("ws write: %w", err))
				return

}

func (z *ZtunnelConnection) sendDataAndWaitForAck(data []byte, fd *int) (*zdsapi.WorkloadResponse, error) {
	var rights []byte
	if fd != nil {
		rights = unix.UnixRights(*fd)
	}
	err := z.u.SetWriteDeadline(time.Now().Add(readWriteDeadline))
	if err != nil {
		return nil, err
	}

	_, _, err = z.u.WriteMsgUnix(data, rights, nil)
	if err != nil {
		return nil, err
	}

	// wait for ack

pkg net/smtp, method (*Client) Noop() error
pkg os, func IsTimeout(error) bool
pkg os, method (*File) SetDeadline(time.Time) error
pkg os, method (*File) SetReadDeadline(time.Time) error
pkg os, method (*File) SetWriteDeadline(time.Time) error
pkg os, method (*PathError) Timeout() bool
pkg os, method (*SyscallError) Timeout() bool
pkg os, var ErrNoDeadline error
pkg strings, method (*Builder) Grow(int)

pkg crypto/tls, method (*Conn) RemoteAddr() net.Addr
pkg crypto/tls, method (*Conn) SetDeadline(time.Time) error
pkg crypto/tls, method (*Conn) SetReadDeadline(time.Time) error
pkg crypto/tls, method (*Conn) SetWriteDeadline(time.Time) error
pkg crypto/tls, method (*Conn) VerifyHostname(string) error
pkg crypto/tls, method (*Conn) Write([]uint8) (int, error)
pkg crypto/tls, type Certificate struct

pkg net/http, method (*ResponseController) Hijack() (net.Conn, *bufio.ReadWriter, error) #54136
pkg net/http, method (*ResponseController) SetReadDeadline(time.Time) error #54136
pkg net/http, method (*ResponseController) SetWriteDeadline(time.Time) error #54136
pkg net/http, type ResponseController struct #54136
pkg net/http, type Server struct, DisableGeneralOptionsHandler bool #41773