Mercurial > hg > xemacs-beta
annotate src/vm-limit.c @ 5652:cc6f0266bc36
Avoid #'delq in core Lisp, for the sake of style, a very slightly smaller binary
lisp/ChangeLog addition:
2012-05-01 Aidan Kehoe <kehoea@parhasard.net>
Avoid #'delq in core code, for the sake of style and a (very
slightly) smaller binary.
* behavior.el (disable-behavior):
* behavior.el (compute-behavior-group-children):
* buff-menu.el (buffers-tab-items):
* byte-optimize.el (byte-optimize-delay-constants-math):
* byte-optimize.el (byte-optimize-logmumble):
* byte-optimize.el (byte-decompile-bytecode-1):
* byte-optimize.el (byte-optimize-lapcode):
* bytecomp.el:
* bytecomp.el (byte-compile-arglist-warn):
* bytecomp.el (byte-compile-warn-about-unresolved-functions):
* bytecomp.el (byte-compile-lambda):
* bytecomp.el (byte-compile-out-toplevel):
* bytecomp.el (byte-compile-insert):
* bytecomp.el (byte-compile-defalias-warn):
* cl-macs.el (cl-upcase-arg):
* cl-macs.el (cl-transform-lambda):
* cl-macs.el (cl-do-proclaim):
* cl-macs.el (defstruct):
* cl-macs.el (cl-make-type-test):
* cl-macs.el (define-compiler-macro):
* cl-macs.el (delete-duplicates):
* cus-edit.el (widget-face-value-delete):
* cus-edit.el (face-history):
* easymenu.el (easy-menu-remove):
* files.el (files-fetch-hook-value):
* files.el (file-expand-wildcards):
* font-lock.el (font-lock-update-removed-keyword-alist):
* font-lock.el (font-lock-remove-keywords):
* frame.el (frame-initialize):
* frame.el (frame-notice-user-settings):
* frame.el (set-frame-font):
* frame.el (delete-other-frames):
* frame.el (get-frame-for-buffer-noselect):
* gnuserv.el (gnuserv-kill-buffer-function):
* gnuserv.el (gnuserv-check-device):
* gnuserv.el (gnuserv-kill-client):
* gnuserv.el (gnuserv-buffer-done-1):
* gtk-font-menu.el (gtk-reset-device-font-menus):
* gutter-items.el (buffers-tab-items):
* gutter.el (set-gutter-element-visible-p):
* info.el (Info-find-file-node):
* info.el (Info-history-add):
* info.el (Info-build-annotation-completions):
* info.el (Info-index):
* info.el (Info-reannotate-node):
* itimer.el (delete-itimer):
* itimer.el (start-itimer):
* lib-complete.el (lib-complete:cache-completions):
* loadhist.el (unload-feature):
* menubar-items.el (build-buffers-menu-internal):
* menubar.el (delete-menu-item):
* menubar.el (relabel-menu-item):
* msw-font-menu.el (mswindows-reset-device-font-menus):
* mule/make-coding-system.el (fixed-width-generate-helper):
* next-error.el (next-error-find-buffer):
* obsolete.el:
* obsolete.el (find-non-ascii-charset-string):
* obsolete.el (find-non-ascii-charset-region):
* occur.el (multi-occur-by-filename-regexp):
* occur.el (occur-1):
* packages.el (packages-package-hierarchy-directory-names):
* packages.el (package-get-key-1):
* process.el (setenv):
* simple.el (undo):
* simple.el (handle-pre-motion-command-current-command-is-motion):
* sound.el (load-sound-file):
* wid-edit.el (widget-field-value-delete):
* wid-edit.el (widget-checklist-match-inline):
* wid-edit.el (widget-checklist-match-find):
* wid-edit.el (widget-editable-list-delete-at):
* wid-edit.el (widget-editable-list-entry-create):
* window.el (quit-window):
* x-font-menu.el (x-reset-device-font-menus-core):
1. Replace (delq nil (mapcar ....)) with analogous (mapcan ...)
forms; this is in non-dumped files, it was done previously in
dumped files.
2. Replace (delq FOO (copy-sequence BAR)) with (remove* FOO BAR),
where #'eq and #'eql are equivalent
3. Replace (delq FOO BAR) with (delete* FOO BAR), where FOO is not
a non-fixnum number. Saves a little space in the dumped file
(since the compiler macro adds :test #'eq to the delete* call if
it's not clear that FOO is not a non-fixnum number).
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Tue, 01 May 2012 16:17:42 +0100 |
| parents | 308d34e9f07d |
| children |
| rev | line source |
|---|---|
| 428 | 1 /* Functions for memory limit warnings. |
| 2 Copyright (C) 1990, 1992 Free Software Foundation, Inc. | |
| 3 | |
| 4 This file is part of XEmacs. | |
| 5 | |
|
5402
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Changed bulk of GPLv2 or later files identified by script
Mats Lidell <matsl@xemacs.org>
parents:
2286
diff
changeset
|
6 XEmacs is free software: you can redistribute it and/or modify it |
| 428 | 7 under the terms of the GNU General Public License as published by the |
|
5402
308d34e9f07d
Changed bulk of GPLv2 or later files identified by script
Mats Lidell <matsl@xemacs.org>
parents:
2286
diff
changeset
|
8 Free Software Foundation, either version 3 of the License, or (at your |
|
308d34e9f07d
Changed bulk of GPLv2 or later files identified by script
Mats Lidell <matsl@xemacs.org>
parents:
2286
diff
changeset
|
9 option) any later version. |
| 428 | 10 |
| 11 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 for more details. | |
| 15 | |
| 16 You should have received a copy of the GNU General Public License | |
|
5402
308d34e9f07d
Changed bulk of GPLv2 or later files identified by script
Mats Lidell <matsl@xemacs.org>
parents:
2286
diff
changeset
|
17 along with XEmacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 428 | 18 |
| 19 /* Synched up with: FSF 19.30. */ | |
| 20 | |
| 21 #ifdef emacs | |
| 22 #include <config.h> | |
| 23 #include "lisp.h" | |
| 24 #endif | |
| 25 | |
| 26 #include <stddef.h> | |
| 27 #ifndef emacs | |
| 28 typedef size_t SIZE; | |
| 29 typedef void *POINTER; | |
| 30 #define EXCEEDS_LISP_PTR(x) 0 | |
| 31 #endif | |
| 32 | |
| 33 #include "mem-limits.h" | |
| 34 | |
| 793 | 35 #ifndef _NO_MALLOC_WARNING_ |
| 36 | |
| 428 | 37 /* |
| 38 Level number of warnings already issued. | |
| 39 0 -- no warnings issued. | |
| 40 1 -- 75% warning already issued. | |
| 41 2 -- 85% warning already issued. | |
| 42 3 -- 95% warning issued; keep warning frequently. | |
| 43 */ | |
| 44 static int warnlevel; | |
| 45 | |
| 46 /* Function to call to issue a warning; | |
| 47 0 means don't issue them. */ | |
| 442 | 48 static void (*warn_function) (const char *); |
| 428 | 49 |
| 50 /* Get more memory space, complaining if we're near the end. */ | |
| 51 | |
| 52 static void | |
| 53 check_memory_limits (void) | |
| 54 { | |
| 55 extern POINTER (*__morecore) (ptrdiff_t size); | |
| 56 | |
| 57 POINTER cp; | |
| 58 unsigned long five_percent; | |
| 59 unsigned long data_size; | |
| 442 | 60 void (*save_warn_fun) (const char *); |
| 428 | 61 |
| 62 if (lim_data == 0) | |
| 63 get_lim_data (); | |
| 64 five_percent = lim_data / 20; | |
| 65 | |
| 66 /* Find current end of memory and issue warning if getting near max */ | |
| 67 cp = (char *) (*__morecore) (0); | |
| 68 data_size = (char *) cp - (char *) data_space_start; | |
| 69 | |
| 70 if (warn_function) | |
| 442 | 71 { |
| 72 /* temporarily reset the warn_function to 0 or we will get infinite | |
| 73 looping. */ | |
| 74 save_warn_fun = warn_function; | |
| 75 warn_function = 0; | |
| 76 switch (warnlevel) | |
| 77 { | |
| 78 case 0: | |
| 79 if (data_size > five_percent * 15) | |
| 80 { | |
| 81 warnlevel++; | |
| 82 (*save_warn_fun) ("Warning: past 75% of memory limit"); | |
| 83 } | |
| 84 break; | |
| 428 | 85 |
| 442 | 86 case 1: |
| 87 if (data_size > five_percent * 17) | |
| 88 { | |
| 89 warnlevel++; | |
| 90 (*save_warn_fun) ("Warning: past 85% of memory limit"); | |
| 91 } | |
| 92 break; | |
| 428 | 93 |
| 442 | 94 case 2: |
| 95 if (data_size > five_percent * 19) | |
| 96 { | |
| 97 warnlevel++; | |
| 98 (*save_warn_fun) ("Warning: past 95% of memory limit"); | |
| 99 } | |
| 100 break; | |
| 428 | 101 |
| 442 | 102 default: |
| 103 (*save_warn_fun) ("Warning: past acceptable memory limits"); | |
| 104 break; | |
| 105 } | |
| 106 warn_function = save_warn_fun; | |
| 107 } | |
| 428 | 108 |
| 109 /* If we go down below 70% full, issue another 75% warning | |
| 110 when we go up again. */ | |
| 111 if (data_size < five_percent * 14) | |
| 112 warnlevel = 0; | |
| 113 /* If we go down below 80% full, issue another 85% warning | |
| 114 when we go up again. */ | |
| 115 else if (warnlevel > 1 && data_size < five_percent * 16) | |
| 116 warnlevel = 1; | |
| 117 /* If we go down below 90% full, issue another 95% warning | |
| 118 when we go up again. */ | |
| 119 else if (warnlevel > 2 && data_size < five_percent * 18) | |
| 120 warnlevel = 2; | |
| 121 | |
| 122 if (EXCEEDS_LISP_PTR (cp)) | |
| 442 | 123 { |
| 124 if (warn_function) | |
| 125 { | |
| 126 /* temporarily reset the warn_function to 0 or we will get infinite | |
| 127 looping. */ | |
| 128 save_warn_fun = warn_function; | |
| 129 warn_function = 0; | |
| 130 (*save_warn_fun) | |
| 131 ("Warning: memory in use exceeds lisp pointer size"); | |
| 132 warn_function = save_warn_fun; | |
| 133 } | |
| 134 } | |
| 428 | 135 } |
| 136 | |
| 793 | 137 #endif /* not _NO_MALLOC_WARNING_ */ |
| 138 | |
| 428 | 139 /* Cause reinitialization based on job parameters; |
| 140 also declare where the end of pure storage is. */ | |
| 141 | |
| 142 void | |
| 2286 | 143 memory_warnings (void *start, |
| 144 #ifdef _NO_MALLOC_WARNING_ | |
| 145 void (*UNUSED_ARG (warnfun)) (const char *) ATTRIBUTE_UNUSED | |
| 146 #else | |
| 147 void (*warnfun) (const char *) | |
| 148 #endif | |
| 149 ) | |
| 428 | 150 { |
| 793 | 151 #ifndef _NO_MALLOC_WARNING_ |
| 428 | 152 extern void (* __after_morecore_hook) (void); /* From gmalloc.c */ |
| 793 | 153 #endif |
| 428 | 154 |
| 155 if (start) | |
| 442 | 156 data_space_start = (char*) start; |
| 428 | 157 else |
| 158 data_space_start = start_of_data (); | |
| 159 | |
| 160 #ifndef _NO_MALLOC_WARNING_ | |
| 161 warn_function = warnfun; | |
| 162 __after_morecore_hook = check_memory_limits; | |
| 163 #endif | |
| 164 } |