message: Add filter for tcp nodelay.
diff: @@ -262,8 +262,11 @@ private:
  inline void init_sock();
  inline void init_sock(int fd);
  inline void init_options()
  + {
  + if (type == SW_SOCK_TCP || type == SW_SOCK_TCP6)
  {
  set_option(IPPROTO_TCP, TCP_NODELAY, 1);
  + }
  protocol.package_length_type = 'N';
  protocol.package_length_size = 4;
  protocol.package_body_offset = 0;
  