# File lib/mongrel.rb, line 239
    def configure_socket_options
      case RUBY_PLATFORM
      when /linux/
        # 9 is currently TCP_DEFER_ACCEPT
        $tcp_defer_accept_opts = [Socket::SOL_TCP, 9, 1]
        $tcp_cork_opts = [Socket::SOL_TCP, 3, 1]
      when /freebsd(([1-4]\..{1,2})|5\.[0-4])/
        # Do nothing, just closing a bug when freebsd <= 5.4
      when /freebsd/
        # Use the HTTP accept filter if available.
        # The struct made by pack() is defined in /usr/include/sys/socket.h as accept_filter_arg
        unless `/sbin/sysctl -nq net.inet.accf.http`.empty?
          $tcp_defer_accept_opts = [Socket::SOL_SOCKET, Socket::SO_ACCEPTFILTER, ['httpready', nil].pack('a16a240')]
        end
      end
    end