mdw@git.distorted.org.uk Git - lisp/blob - sys-base.lisp

   1 ;;; -*-lisp-*-
   2 ;;;
   3 ;;; $Id$
   4 ;;;
   5 ;;; Basic system-specific stuff
   6 ;;;
   7 ;;; (c) 2005 Mark Wooding
   8 ;;;
   9
  10 ;;;----- Licensing notice ---------------------------------------------------
  11 ;;;
  12 ;;; This program is free software; you can redistribute it and/or modify
  13 ;;; it under the terms of the GNU General Public License as published by
  14 ;;; the Free Software Foundation; either version 2 of the License, or
  15 ;;; (at your option) any later version.
  16 ;;;
  17 ;;; This program is distributed in the hope that it will be useful,
  18 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 ;;; GNU General Public License for more details.
  21 ;;;
  22 ;;; You should have received a copy of the GNU General Public License
  23 ;;; along with this program; if not, write to the Free Software Foundation,
  24 ;;; Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  25
  26 (defpackage #:runlisp
  27   (:use #:common-lisp)
  28   (:export #:*raw-command-line* #:*command-line* #:exit)
  29   #+clisp (:import-from #:ext #:exit))
  30
  31 (defpackage #:mdw.sys-base
  32   (:use #:common-lisp #:runlisp)
  33   (:export #:exit #:hard-exit #:*program-name* #:*command-line*
  34            set-command-line-arguments)
  35   (:import-from #:runlisp #:*raw-command-line* #:*command-line* #:exit))
  36 (in-package #:mdw.sys-base)
  37
  38 (defvar *raw-command-line*)
  39 (defvar *command-line*)
  40 (defvar *program-name*)
  41
  42 (defun set-command-line-arguments ()
  43   (setf *raw-command-line*
  44         (or #+cl-launch cl-launch:*arguments*
  45             #+cmu ext:*command-line-strings*
  46             #+sbcl sb-ext:*posix-argv*
  47             #+ecl (loop from i below (ext:argc) collect (ext:argv i))
  48             #+clisp (coerce (ext:argv) 'list)
  49             '("<unknown-lisp>" "--" "<unknown-script>")))
  50   (setf *command-line*
  51         (or #+cl-launch (cons (or (cl-launch:getenv "CL_LAUNCH_FILE")
  52                                   "<unknown-script>")
  53                               cl-launch:*arguments*)
  54             (cdr (member "--" *raw-command-line* :test #'string=))
  55             *raw-command-line*))
  56   (setf *program-name* (pathname-name (car *command-line*))))
  57 (set-command-line-arguments)
  58
  59 #-clisp
  60 (unless (fboundp 'exit)
  61   (defun exit (&optional (code 0))
  62     "Polite way to end a program."
  63     #+(or cmu ecl) (ext:quit code)
  64     #+sbcl (sb-ext:quit :unix-status code)
  65     #-(or cmu ecl sbcl)
  66     (progn
  67       (unless (zerop code)
  68         (format t "~&Exiting unsuccessfully with code ~D.~%" code))
  69       (abort))))
  70
  71 (defun hard-exit (&optional (code 0))
  72   "Stops the program immediately in its tracks.  Does nothing else.  Use
  73    after fork, for example, to avoid flushing buffers."
  74   (declare (type (unsigned-byte 32) code))
  75   #+cmu (unix::void-syscall ("_exit" c-call:int) code)
  76   #+sbcl (sb-ext:quit :unix-status code :recklessly-p t)
  77   #+(or clisp ecl) (ext:quit code))
  78
  79 ;;;----- That's all, folks --------------------------------------------------