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 #:*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 #:*command-line* #:exit))
  36 (in-package #:mdw.sys-base)
  37
  38 (defvar *command-line*)
  39 (defvar *program-name*)
  40
  41 (defun set-command-line-arguments ()
  42   (setf *command-line*
  43         (or (when (member :cl-launch *features*)
  44               (let* ((uiop-package (find-package :uiop))
  45                      (cll-package (find-package :cl-launch))
  46                      (name (some (intern "GETENV"
  47                                          (or uiop-package cll-package))
  48                                  (list "__CL_ARGV0" "CL_LAUNCH_FILE")))
  49                      (args (symbol-value
  50                             (if uiop-package
  51                                 (intern "*COMMAND-LINE-ARGUMENTS*"
  52                                         uiop-package)
  53                                 (intern "*ARGUMENTS*" cll-package)))))
  54                 (if name
  55                     (cons name args)
  56                     args)))
  57             #+cmu ext:*command-line-strings*
  58             #+sbcl sb-ext:*posix-argv*
  59             #+ecl (loop from i below (ext:argc) collect (ext:argv i))
  60             #+clisp (loop with argv = (ext:argv)
  61                           for i from 7 below (length argv)
  62                           collect (aref argv i))
  63             '("<unknown-lisp>" "--" "<unknown-script>")))
  64   (setf *program-name* (pathname-name (car *command-line*))))
  65 (set-command-line-arguments)
  66
  67 #-clisp
  68 (unless (fboundp 'exit)
  69   (defun exit (&optional (code 0))
  70     "Polite way to end a program."
  71     #+(or cmu ecl) (ext:quit code)
  72     #+sbcl (sb-ext:exit :code code)
  73     #-(or cmu ecl sbcl)
  74     (progn
  75       (unless (zerop code)
  76         (format t "~&Exiting unsuccessfully with code ~D.~%" code))
  77       (abort))))
  78
  79 (defun hard-exit (&optional (code 0))
  80   "Stops the program immediately in its tracks.  Does nothing else.  Use
  81    after fork, for example, to avoid flushing buffers."
  82   (declare (type (unsigned-byte 32) code))
  83   #+cmu (unix::void-syscall ("_exit" c-call:int) code)
  84   #+sbcl (sb-ext:exit :code code :abort t)
  85   #+(or clisp ecl) (ext:quit code))
  86
  87 ;;;----- That's all, folks --------------------------------------------------