message: Set status code when server actively close
diff: @@ -509,6 +509,7 @@ static PHP_METHOD(swoole_websocket_server, disconnect)
  {
  // Server close connection immedialty
  conn->websocket_status = WEBSOCKET_STATUS_CLOSING;
  + conn->websocket_close_code = code;
  SW_CHECK_RETURN(SwooleG.serv->close(serv, (int)fd, (int)SW_FALSE));
  }
  }
  