1 // +build go1.8

     2 

     3 package websocket

     4 

     5 import (

     6 	"crypto/tls"

     7 	"net/http/httptrace"

     8 )

     9 

    10 func doHandshakeWithTrace(trace *httptrace.ClientTrace, tlsConn *tls.Conn, cfg *tls.Config) error {

    11 	if trace.TLSHandshakeStart != nil {

    12 		trace.TLSHandshakeStart()

    13 	}

    14 	err := doHandshake(tlsConn, cfg)

    15 	if trace.TLSHandshakeDone != nil {

    16 		trace.TLSHandshakeDone(tlsConn.ConnectionState(), err)

    17 	}

    18 	return err

    19 }