io.multiplex/foreign-bsd.lisp

   1 ;;;; -*- Mode: Lisp; Syntax: ANSI-Common-Lisp; indent-tabs-mode: nil -*-
   2 ;;;
   3 ;;; --- Linux-specific definitions.
   4 ;;;
   5 ;;; Copyright (C) 2005-2006, Matthew Backes  <lucca@accela.net>
   6 ;;; Copyright (C) 2005-2006, Dan Knapp  <dankna@accela.net>
   7 ;;;
   8 ;;; Permission is hereby granted, free of charge, to any person
   9 ;;; obtaining a copy of this software and associated documentation
  10 ;;; files (the "Software"), to deal in the Software without
  11 ;;; restriction, including without limitation the rights to use, copy,
  12 ;;; modify, merge, publish, distribute, sublicense, and/or sell copies
  13 ;;; of the Software, and to permit persons to whom the Software is
  14 ;;; furnished to do so, subject to the following conditions:
  15 ;;;
  16 ;;; The above copyright notice and this permission notice shall be
  17 ;;; included in all copies or substantial portions of the Software.
  18 ;;;
  19 ;;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  20 ;;; EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  21 ;;; MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  22 ;;; NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  23 ;;; HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  24 ;;; WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  25 ;;; OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  26 ;;; DEALINGS IN THE SOFTWARE.
  27
  28 (in-package :io.multiplex)
  29
  30 ;;;; sys/event.h
  31
  32 (defsyscall "kqueue" :int
  33   "Open a kernel event queue.")
  34
  35 (defsyscall "kevent" :int
  36   "Control interface for a kernel event queue."
  37   (kq         :int)
  38   (changelist :pointer) ; const struct kevent *
  39   (nchanges   :int)
  40   (eventlist  :pointer) ; struct kevent *
  41   (nevents    :int)
  42   (timeout    :pointer)) ; const struct timespec *
  43
  44 (defun ev-set (%kev %ident %filter %flags %fflags %data %udata)
  45   (with-foreign-slots ((ident filter flags fflags data udata) %kev kevent)
  46     (setf ident %ident filter %filter flags %flags
  47           fflags %fflags data %data udata %udata)))