annotate lisp/buffer.el @ 5158:9e0b43d3095c

more cleanups to object-memory-usage stuff -------------------- ChangeLog entries follow: -------------------- lisp/ChangeLog addition: 2010-03-19 Ben Wing <ben@xemacs.org> * diagnose.el (show-object-memory-usage-stats): Rewrite to take into account non-lisp-storage statistics returned by garbage-collect-1 and friends. src/ChangeLog addition: 2010-03-19 Ben Wing <ben@xemacs.org> * alloc.c: * alloc.c (struct): * alloc.c (tick_lrecord_stats): * alloc.c (gc_sweep_1): * alloc.c (finish_object_memory_usage_stats): * alloc.c (object_memory_usage_stats): * alloc.c (compute_memusage_stats_length): Call new memory-usage mechanism at sweep time to compute extra memory utilization for all objects. Add up the values element-by- element to get an aggregrate set of statistics, where each is the sum of the values of a single statistic across different objects of the same type. At end of sweep time, call finish_object_memory_usage_stats() to add up all the aggreggrate stats that are related to non-Lisp memory storage to compute a single value, and add it to the list of values returned by `garbage-collect' and `object-memory-usage-stats'. * buffer.c (compute_buffer_text_usage): Don't crash on buffers without text (killed buffers?) and don't double-count indirect buffers. * elhash.c: * elhash.c (hash_table_objects_create): * elhash.c (vars_of_elhash): * symsinit.h: Add memory-usage method to count the size of `hentries'. * emacs.c (main_1): Call new functions in elhash.c, frame.c at init. * frame.c: * frame.c (compute_frame_usage): * frame.c (frame_memory_usage): * frame.c (frame_objects_create): * symsinit.h: Add memory-usage method to count gutter display structures, subwindow exposures. * gc.c (gc_finish): * lisp.h: Declare finish_object_memory_usage_stats(), call it in gc_finish(). * lrecord.h (struct lrecord_implementation): * lrecord.h (INIT_MEMORY_USAGE_STATS): New value in implementation struct to track number of non-Lisp-memory statistics. Computed in alloc.c.
author Ben Wing <ben@xemacs.org>
date Fri, 19 Mar 2010 14:47:44 -0500
parents 74a5eaa67982
children 308d34e9f07d
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1 ;;; buffer.el --- buffer routines taken from C
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2
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3 ;; Copyright (C) 1985-1989, 1992-1995, 1997 Free Software Foundation, Inc.
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4 ;; Copyright (C) 1995 Sun Microsystems.
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5 ;; Copyright (C) 1995, 1996 Ben Wing.
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6
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7 ;; Maintainer: XEmacs Development Team
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8 ;; Keywords: internal, dumped
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9
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10 ;; This file is part of XEmacs.
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11
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12 ;; XEmacs is free software; you can redistribute it and/or modify it
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13 ;; under the terms of the GNU General Public License as published by
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14 ;; the Free Software Foundation; either version 2, or (at your option)
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15 ;; any later version.
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16
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17 ;; XEmacs is distributed in the hope that it will be useful, but
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18 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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20 ;; General Public License for more details.
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21
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22 ;; You should have received a copy of the GNU General Public License
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23 ;; along with XEmacs; see the file COPYING. If not, write to the
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24 ;; Free Software Foundation, 59 Temple Place - Suite 330,
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25 ;; Boston, MA 02111-1307, USA.
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26
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27 ;;; Synched up with: FSF 19.30 buffer.c.
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28
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29 ;;; Commentary:
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30
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31 ;; This file is dumped with XEmacs.
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32
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33 ;;; Code:
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34
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35 (defun switch-to-buffer (bufname &optional norecord)
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36 "Select buffer BUFNAME in the current window.
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37 BUFNAME may be a buffer or a buffer name and is created if it did not exist.
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38 Optional second arg NORECORD non-nil means do not put this buffer at the
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39 front of the list of recently selected ones.
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40
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41 WARNING: This is NOT the way to work on another buffer temporarily
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42 within a Lisp program! Use `set-buffer' instead. That avoids messing with
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43 the window-buffer correspondences."
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44 (interactive
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45 (list (read-buffer "Switch to buffer: "
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46 (other-buffer (current-buffer))
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47 nil
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48 (current-buffer))))
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49 ;; #ifdef I18N3
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50 ;; #### Doc string should indicate that the buffer name will get
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51 ;; translated.
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52 ;; #endif
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53 (if (eq (minibuffer-window) (selected-window))
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54 (error "Cannot switch buffers in minibuffer window"))
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55 (if (window-dedicated-p (selected-window))
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56 (error "Cannot switch buffers in a dedicated window"))
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57 (let (buf)
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58 (if (null bufname)
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59 (setq buf (other-buffer (current-buffer)))
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60 (setq buf (get-buffer bufname))
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61 (if (null buf)
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62 (progn
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63 (setq buf (get-buffer-create bufname))
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64 (set-buffer-major-mode buf))))
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65 (push-window-configuration)
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66 (set-buffer buf)
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67 (set-window-buffer (last-nonminibuf-window) buf norecord)
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68 buf))
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69
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70 (defun pop-to-buffer (bufname &optional not-this-window-p on-frame)
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71 "Select buffer BUFNAME in some window, preferably a different one.
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72 If BUFNAME is nil, then some other buffer is chosen.
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73 If `pop-up-windows' is non-nil, windows can be split to do this.
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74 If optional second arg NOT-THIS-WINDOW-P is non-nil, insist on finding
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75 another window even if BUFNAME is already visible in the selected window.
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76 If optional third arg is non-nil, it is the frame to pop to this
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77 buffer on.
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78 If `focus-follows-mouse' is non-nil, keyboard focus is left unchanged.
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79
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80 Buffers with names that are members of the `same-window-buffer-names'
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81 list, or that match an element of the `same-window-regexps' list are
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82 treated specially by this function--they are always selected in the
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83 same window rather than in a different one."
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84 ;; #ifdef I18N3
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85 ;; #### Doc string should indicate that the buffer name will get
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86 ;; translated.
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87 ;; #endif
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88 ;; This is twisted. It is evil to throw the keyboard focus around
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89 ;; willy-nilly if the user wants focus-follows-mouse.
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90 (let ((oldbuf (current-buffer))
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91 buf window frame)
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92 (if (null bufname)
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93 (setq buf (other-buffer (current-buffer)))
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94 (setq buf (get-buffer bufname))
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95 (if (null buf)
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96 (progn
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97 (setq buf (get-buffer-create bufname))
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98 (set-buffer-major-mode buf))))
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99 (push-window-configuration)
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100 (set-buffer buf)
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101 (setq window (display-buffer buf not-this-window-p on-frame))
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102 (setq frame (window-frame window))
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103 ;; if the display-buffer hook decided to show this buffer in another
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104 ;; frame, then select that frame, (unless obeying focus-follows-mouse -sb).
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105 (if (and (not focus-follows-mouse)
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106 (not (eq frame (selected-frame))))
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107 (select-frame frame))
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108 (record-buffer buf)
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109 (if (and focus-follows-mouse
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110 on-frame
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111 (not (eq on-frame (selected-frame))))
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112 (set-buffer oldbuf)
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113 ;; select-window will modify the internal keyboard focus of XEmacs
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114 (select-window window))
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115 buf))
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116
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117 ;;; buffer.el ends here