// Sets read deadline
func (c *DeadlineConn) setReadDeadline() {
	// Do not set a Read deadline, if upstream wants to cancel all reads.
	if c.readDeadline <= 0 || c.abortReads.Load() || c.infReads.Load() {
		return
	}

	c.mu.Lock()
	defer c.mu.Unlock()
	if c.abortReads.Load() {
		return
	}

	now := time.Now()
	if now.Sub(c.readSetAt) > updateInterval {
		c.Conn.SetReadDeadline(now.Add(c.readDeadline + updateInterval))

			return
		}

		// Set a deadline in the past to indicate we want the next read to fail.
		// Ensure we don't override it on read.
		deadlineconn.SetReadDeadline(time.Unix(1, 0))

		// Be sure to exceed update interval
		time.Sleep(updateInterval * 2)

		_, terr = deadlineconn.Read(b)
		if terr == nil {

pkg net, method (*UnixListener) SyscallConn() (syscall.RawConn, error)
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 net, type Conn interface, Close() error
pkg net, type Conn interface, LocalAddr() Addr
pkg net, type Conn interface, Read([]uint8) (int, error)
pkg net, type Conn interface, RemoteAddr() Addr
pkg net, type Conn interface, SetDeadline(time.Time) error
pkg net, type Conn interface, SetReadDeadline(time.Time) error

pkg net/http, method (*ResponseController) Flush() error #54136
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