net.sockets/config.lisp

   1 ;;;; -*- Mode: Lisp; Syntax: ANSI-Common-Lisp; Indent-tabs-mode: NIL -*-
   2 ;;;
   3 ;;; config.lisp --- Special variable definitions.
   4 ;;;
   5 ;;; Copyright (C) 2006-2007, Stelian Ionescu  <sionescu@common-lisp.net>
   6 ;;;
   7 ;;; This code is free software; you can redistribute it and/or
   8 ;;; modify it under the terms of the version 2.1 of
   9 ;;; the GNU Lesser General Public License as published by
  10 ;;; the Free Software Foundation, as clarified by the
  11 ;;; preamble found here:
  12 ;;;     http://opensource.franz.com/preamble.html
  13 ;;;
  14 ;;; This program is distributed in the hope that it will be useful,
  15 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 ;;; GNU General Public License for more details.
  18 ;;;
  19 ;;; You should have received a copy of the GNU Lesser General
  20 ;;; Public License along with this library; if not, write to the
  21 ;;; Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
  22 ;;; Boston, MA 02110-1301, USA
  23
  24 (in-package :net.sockets)
  25
  26 (defvar *ipv6* t
  27   "Specifies the default behaviour with respect to IPv6:
  28 - nil   : Only IPv4 addresses are used.
  29 - :ipv6 : Only IPv6 addresses are used.
  30 - t     : If both IPv4 and IPv6 addresses are found they are returned in the best order possible (see RFC 3484).
  31 Default value is T.")
  32
  33 (deftype *ipv6*-type ()
  34   '(member t nil :ipv6))
  35
  36 (defconstant +max-backlog-size+ somaxconn
  37   "Maximum length of the pending connections queue (hard limit).")
  38
  39 (defvar *default-backlog-size* 5
  40   "Default length of the pending connections queue (soft limit).")
  41
  42 (defvar *default-linger-seconds* 15
  43   "Default linger timeout when enabling SO_LINGER option on a socket.")