view lisp/misc.el @ 5160:ab9ee10a53e4

fix various problems with allocation statistics, track overhead properly -------------------- ChangeLog entries follow: -------------------- lisp/ChangeLog addition: 2010-03-20 Ben Wing <ben@xemacs.org> * diagnose.el (show-memory-usage): * diagnose.el (show-object-memory-usage-stats): Further changes to correspond with changes in the C code; add an additional column showing the overhead used with each type, and add it into the grand total memory usage. src/ChangeLog addition: 2010-03-20 Ben Wing <ben@xemacs.org> * alloc.c: * alloc.c (init_lrecord_stats): * alloc.c (free_normal_lisp_object): * alloc.c (struct): * alloc.c (clear_lrecord_stats): * alloc.c (tick_lrecord_stats): * alloc.c (COUNT_FROB_BLOCK_USAGE): * alloc.c (COPY_INTO_LRECORD_STATS): * alloc.c (sweep_strings): * alloc.c (UNMARK_string): * alloc.c (gc_sweep_1): * alloc.c (finish_object_memory_usage_stats): * alloc.c (object_memory_usage_stats): * alloc.c (object_dead_p): * alloc.c (fixed_type_block_overhead): * alloc.c (lisp_object_storage_size): * emacs.c (main_1): * lisp.h: * lrecord.h: Export lisp_object_storage_size() and malloced_storage_size() even when not MEMORY_USAGE_STATS, to get the non-MEMORY_USAGE_STATS build to compile. Don't export fixed_type_block_overhead() any more. Some code cleanup, rearrangement, add some section headers. Clean up various bugs especially involving computation of overhead and double-counting certain usage in total_gc_usage. Add statistics computing the overhead used by all types. Don't add a special entry for string headers in the object-memory-usage-stats because it's already present as just "string". But do count the overhead used by long strings. Don't try to call the memory_usage() methods when NEW_GC because there's nowhere obvious in the sweep stage to make the calls. * marker.c (compute_buffer_marker_usage): Just use lisp_object_storage_size() rather than trying to reimplement it.
author Ben Wing <ben@xemacs.org>
date Sat, 20 Mar 2010 20:20:30 -0500
parents 41ff10fd062f
children 308d34e9f07d
line wrap: on
line source

;;; misc.el --- miscellaneous functions for XEmacs

;; Copyright (C) 1989, 1997 Free Software Foundation, Inc.

;; Maintainer: FSF
;; Keywords: extensions, 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, Inc., 59 Temple Place - Suite 330, Boston, MA
;; 02111-1307, USA.

;;; Synched up with: FSF 19.34.

;;; Commentary:

;; This file is dumped with XEmacs.

;; 06/11/1997 - Use char-(after|before) instead of
;;  (following|preceding)-char. -slb

;;; Code:

(defun copy-from-above-command (&optional arg)
  "Copy characters from previous nonblank line, starting just above point.
Copy ARG characters, but not past the end of that line.
If no argument given, copy the entire rest of the line.
The characters copied are inserted in the buffer before point."
  (interactive "P")
  (let ((cc (current-column))
	n
	(string ""))
    (save-excursion
      (beginning-of-line)
      (backward-char 1)
      (skip-chars-backward "\ \t\n")
      (move-to-column cc)
      ;; Default is enough to copy the whole rest of the line.
      (setq n (if arg (prefix-numeric-value arg) (point-max)))
      ;; If current column winds up in middle of a tab,
      ;; copy appropriate number of "virtual" space chars.
      (if (< cc (current-column))
	  (if (eq (char-before (point)) ?\t)
	      (progn
		(setq string (make-string (min n (- (current-column) cc)) ?\ ))
		(setq n (- n (min n (- (current-column) cc)))))
	    ;; In middle of ctl char => copy that whole char.
	    (backward-char 1)))
      (setq string (concat string
			   (buffer-substring
			    (point)
			    (min (save-excursion (end-of-line) (point))
				 (+ n (point)))))))
    (insert string)))

;;; misc.el ends here