view lisp/post-gc.el @ 2420:ad56e5a6d09f

[xemacs-hg @ 2004-12-06 03:46:06 by ben] (none) README.packages: Document use of --package-prefix. Fix error in specifying standard package location. make-docfile.c: Use QXE_PATH_MAX. info.el: Correct doc string giving example package path. menubar-items.el: Move Prefix Rectangle command up one level. xemacs/packages.texi: Add long form of Lisp Reference Manual to links. Add links pointing to Lisp Reference Manual for more detailed package discussion. lispref/range-tables.texi: Document range-table changes. internals/internals.texi: Update history section. elhash.c, elhash.h, profile.c: Create inchash_eq() to allow direct incrementing of hash-table entry. Use in profile.c to try to reduce profiling overhead. Increase initial size of profile hash tables to reduce profiling overhead. buffer.c, device-msw.c, dialog-msw.c, dired-msw.c, editfns.c, event-msw.c, events.c, glyphs-msw.c, keymap.c, objects-msw.c, process-nt.c, syswindows.h, text.c, text.h, unexnt.c: Rename xetcs* -> qxetcs* for consistency with qxestr*. Rename ei*_c(_*) -> ei*_ascii(_*) since they work with ASCII-only strings not "C strings", whatever those are. This is the last place where "c" was incorrectly being used for "ascii". dialog-msw.c, dumper.c, event-msw.c, fileio.c, glyphs-gtk.c, glyphs-x.c, nt.c, process-nt.c, realpath.c, sysdep.c, sysfile.h, unexcw.c, unexnext.c, unexnt.c: Try to avoid differences in systems that do or do not include final null byte in PATH_MAX. Create PATH_MAX_INTERNAL and PATH_MAX_EXTERNAL and use them everywhere. Rewrite code in dumper.c to avoid use of PATH_MAX. When necessary in nt.c, use _MAX_PATH instead of MAX_PATH to be consistent with other places. text.c: Code to short-circuit when binary or Unicode was not working due to EOL wrapping. Fix this code to work when either no EOL autodetection or no CR's or LF's in the text. lisp.h, rangetab.c, rangetab.h, regex.c, search.c: Implement different types of ranges (open/closed start and end). Change default to be start-closed, end-open.
author ben
date Mon, 06 Dec 2004 03:46:07 +0000
parents 75b8038f720e
children d27c1ee1943b 308d34e9f07d
line wrap: on
line source

;;; post-gc.el --- post-gc actions

;; Copyright (C) 1985-1986, 1990, 1992-1997 Free Software Foundation, Inc.
;; Copyright (c) 1993, 1994 Sun Microsystems, Inc.
;; Copyright (C) 1995 Board of Trustees, University of Illinois

;; Author: Mike Sperber <mike@xemacs.org>
;; Maintainer: XEmacs Development Team
;; Keywords: internal, dumped

;; This file is part of XEmacs.

;; XEmacs is free software; you can redistribute it and/or modify it
;; under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.

;; XEmacs is distributed in the hope that it will be useful, but
;; WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
;; General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with XEmacs; see the file COPYING.  If not, write to the 
;; Free Software Foundation, 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.

;;; Synched up with: Not in FSF.

;;; Commentary:

;; This file is dumped with XEmacs.

;; This file defines actions to happen after each GC to perform
;; additional cleanup, call finalizers, etc.

(defun run-finalizers (alist)
  "Run the finalizers for all objects that have just become unreachable."
  (let ((info (assq 'finalize-list alist)))
    (if info
	(let ((finalize-list (cdr info)))
	  (while finalize-list
	    (funcall (cdr (car finalize-list)) (car (car finalize-list)))
	    (setq finalize-list (cdr finalize-list)))))))

(add-hook 'post-gc-hook 'run-finalizers)

(defvar simple-finalizer-ephemerons '()
  "List of ephemerons for objects that have a finalizer attached..")

(defun add-finalizer (object func)
  "Add FUNC as a finalizer for object OBJECT."
  (setq simple-finalizer-ephemerons
	(cons (make-ephemeron object object func)
	      simple-finalizer-ephemerons)))

(defun cleanup-simple-finalizers (alist)
  "Clean up `simple-finalizer-ephemerons'."
  ;; We have to do this by hand because DELETE-IF isn't defined yet.
  (let ((current simple-finalizer-ephemerons)
	(prev nil))
    (while (not (null current))
      (if (not (ephemeron-ref (car current)))
	  (if (null prev)
	      (setq simple-finalizer-ephemerons (cdr current))
	    (setcdr prev (cdr current)))
	(setq prev current))
      (setq current (cdr current)))))

(add-hook 'post-gc-hook 'cleanup-simple-finalizers)