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         (let ((uiop-package (find-package :uiop))
  42               (cll-package (find-package :cl-launch)))
  43           (cons (or (and uiop-package
  44                          (funcall (intern "ARGV0" uiop-package)))
  45                     (and cll-package
  46                          (some (intern "GETENV" cll-package)
  47                                (list "__CL_ARGV0" "CL_LAUNCH_FILE")))
  48                     #+sbcl (car sb-ext:*posix-argv*)
  49                     #+cmu (car ext:*command-line-strings*)
  50                     #+clisp (aref (ext:argv) 0)
  51                     #+ecl (ext:argv 0)
  52                     "<unknown-script>")
  53                 (cond (uiop-package
  54                        (funcall (intern "COMMAND-LINE-ARGUMENTS"
  55                                         uiop-package)))
  56                       (cll-package
  57                        (symbol-value (intern "*ARGUMENTS*" cll-package)))
  58                       (t #.(or (car '(#+sbcl (cdr sb-ext:*posix-argv*)
  59                                       #+cmu (cdr ext:*command-line-strings*)
  60                                       #+clisp (coerce (subseq (ext:argv) 8)
  61                                                'list)
  62                                       #+ecl (loop for i from 1
  63                                                   below (ext:argc)
  64                                                   collect (ext:argv i))))
  65                                (error "Unsupported Lisp."))))))
  66
  67         *program-name* (pathname-name (car *command-line*))))
  68
  69 (set-command-line-arguments)
  70
  71 #-clisp
  72 (unless (fboundp 'exit)
  73   (defun exit (&optional (code 0))
  74     "Polite way to end a program."
  75     #+(or cmu ecl) (ext:quit code)
  76     #+sbcl (sb-ext:exit :code code)
  77     #-(or cmu ecl sbcl)
  78     (progn
  79       (unless (zerop code)
  80         (format t "~&Exiting unsuccessfully with code ~D.~%" code))
  81       (abort))))
  82
  83 (defun hard-exit (&optional (code 0))
  84   "Stops the program immediately in its tracks.  Does nothing else.  Use
  85    after fork, for example, to avoid flushing buffers."
  86   (declare (type (unsigned-byte 32) code))
  87   #+cmu (unix::void-syscall ("_exit" c-call:int) code)
  88   #+sbcl (sb-ext:exit :code code :abort t)
  89   #+(or clisp ecl) (ext:quit code))
  90
  91 ;;;----- That's all, folks --------------------------------------------------