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

   1 ;;; -*-lisp-*-
   2 ;;;
   3 ;;; Basic system-specific stuff
   4 ;;;
   5 ;;; (c) 2005 Mark Wooding
   6 ;;;
   7
   8 ;;;----- Licensing notice ---------------------------------------------------
   9 ;;;
  10 ;;; This program is free software; you can redistribute it and/or modify
  11 ;;; it under the terms of the GNU General Public License as published by
  12 ;;; the Free Software Foundation; either version 2 of the License, or
  13 ;;; (at your option) any later version.
  14 ;;;
  15 ;;; This program is distributed in the hope that it will be useful,
  16 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;;; GNU General Public License for more details.
  19 ;;;
  20 ;;; You should have received a copy of the GNU General Public License
  21 ;;; along with this program; if not, write to the Free Software Foundation,
  22 ;;; Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  23
  24 (defpackage #:runlisp
  25   (:use #:common-lisp)
  26   (:export #:*command-line* #:exit)
  27   #+clisp (:import-from #:ext #:exit))
  28
  29 (defpackage #:mdw.sys-base
  30   (:use #:common-lisp #:runlisp)
  31   (:export #:exit #:hard-exit #:*program-name* #:*command-line*
  32            #:set-command-line-arguments)
  33   (:import-from #:runlisp #:*command-line* #:exit))
  34 (in-package #:mdw.sys-base)
  35
  36 (defvar *command-line*)
  37 (defvar *program-name*)
  38
  39 (defun set-command-line-arguments ()
  40   (setf *command-line*
  41         (or (when (member :cl-launch *features*)
  42               (let* ((uiop-package (find-package :uiop))
  43                      (cll-package (find-package :cl-launch))
  44                      (name (some (intern "GETENV"
  45                                          (or uiop-package cll-package))
  46                                  (list "__CL_ARGV0" "CL_LAUNCH_FILE")))
  47                      (args (symbol-value
  48                             (if uiop-package
  49                                 (intern "*COMMAND-LINE-ARGUMENTS*"
  50                                         uiop-package)
  51                                 (intern "*ARGUMENTS*" cll-package)))))
  52                 (if name
  53                     (cons name args)
  54                     args)))
  55             #+cmu ext:*command-line-strings*
  56             #+sbcl sb-ext:*posix-argv*
  57             #+ecl (loop from i below (ext:argc) collect (ext:argv i))
  58             #+clisp (loop with argv = (ext:argv)
  59                           for i from 7 below (length argv)
  60                           collect (aref argv i))
  61             '("<unknown-lisp>" "--" "<unknown-script>")))
  62   (setf *program-name* (pathname-name (car *command-line*))))
  63 (set-command-line-arguments)
  64
  65 #-clisp
  66 (unless (fboundp 'exit)
  67   (defun exit (&optional (code 0))
  68     "Polite way to end a program."
  69     #+(or cmu ecl) (ext:quit code)
  70     #+sbcl (sb-ext:exit :code code)
  71     #-(or cmu ecl sbcl)
  72     (progn
  73       (unless (zerop code)
  74         (format t "~&Exiting unsuccessfully with code ~D.~%" code))
  75       (abort))))
  76
  77 (defun hard-exit (&optional (code 0))
  78   "Stops the program immediately in its tracks.  Does nothing else.  Use
  79    after fork, for example, to avoid flushing buffers."
  80   (declare (type (unsigned-byte 32) code))
  81   #+cmu (unix::void-syscall ("_exit" c-call:int) code)
  82   #+sbcl (sb-ext:exit :code code :abort t)
  83   #+(or clisp ecl) (ext:quit code))
  84
  85 ;;;----- That's all, folks --------------------------------------------------