annotate lib-src/make-dump-id.c @ 776:79940b592197

[xemacs-hg @ 2002-03-15 07:43:14 by ben] .cvsignore: ignore .tmp files that are getting auto-created by VC. Makefile.in.in: Use -no-packages to avoid problems with package files shadowing core files (e.g. unicode.el in mule-ucs). alloc.c, emacs.c, lisp.h: add new -no-packages. make sure list of args for sorting is actually correct. clean up arg parsing code. xemacs.mak: Use -no-packages to avoid problems with package files shadowing core files (e.g. unicode.el in mule-ucs). Makefile: Use -no-packages to avoid problems with package files shadowing core files (e.g. unicode.el in mule-ucs). mule\chinese.el, mule\japan-util.el: fix warnings. behavior-defs.el: fix errors with require. bytecomp-runtime.el: add new funs {when,and}-{f}boundp, clean up docs. cus-edit.el: pretty-print values. dump-paths.el, find-paths.el, startup.el, setup-paths.el: fix problems/inconsistencies parsing options. support new -no-packages option. merge code duplication in dump-paths and startup. lisp-mode.el: indent macrolet and labels correctly. update comments about lisp-indent-function. flet already handled in cl. apropos.el, auto-save.el, buff-menu.el, cl-extra.el, dragdrop.el, faces.el, files.el, fill.el, font-lock.el, font.el, gtk-faces.el, gui.el, help.el, hyper-apropos.el, info.el, isearch-mode.el, keymap.el, lisp-mnt.el, mouse.el, package-admin.el, package-get.el, printer.el, process.el, resize-minibuffer.el, simple.el, toolbar-items.el, wid-edit.el, win32-native.el: fix warnings. very-early-lisp.el: update docs. mule\chinese.el, mule\japan-util.el: fix warnings. mule\chinese.el, mule\japan-util.el: fix warnings. behavior-defs.el: fix errors with require. bytecomp-runtime.el: add new funs {when,and}-{f}boundp, clean up docs. cus-edit.el: pretty-print values. dump-paths.el, find-paths.el, startup.el, setup-paths.el: fix problems/inconsistencies parsing options. support new -no-packages option. merge code duplication in dump-paths and startup. lisp-mode.el: indent macrolet and labels correctly. update comments about lisp-indent-function. flet already handled in cl. apropos.el, auto-save.el, buff-menu.el, cl-extra.el, dragdrop.el, faces.el, files.el, fill.el, font-lock.el, font.el, gtk-faces.el, gui.el, help.el, hyper-apropos.el, info.el, isearch-mode.el, keymap.el, lisp-mnt.el, mouse.el, package-admin.el, package-get.el, printer.el, process.el, resize-minibuffer.el, simple.el, toolbar-items.el, wid-edit.el, win32-native.el: fix warnings. very-early-lisp.el: update docs. mule\chinese.el, mule\japan-util.el: fix warnings. Makefile.in.in: Use -no-packages to avoid problems with package files shadowing core files (e.g. unicode.el in mule-ucs). Makefile.in.in: Use -no-packages to avoid problems with package files shadowing core files (e.g. unicode.el in mule-ucs).
author ben
date Fri, 15 Mar 2002 07:43:43 +0000
parents 223736d75acb
children 8bae4d6cdd10
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1 /* Generate a unique dump-id for use with the portable dumper.
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2 Copyright (C) 2000 Olivier Galibert, Martin Buchholz
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3
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4 This file is part of XEmacs.
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5
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6 XEmacs is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published by the
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8 Free Software Foundation; either version 2, or (at your option) any
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9 later version.
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10
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11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with XEmacs; see the file COPYING. If not, write to
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18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 Boston, MA 02111-1307, USA. */
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20
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21 #include <config.h>
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22 #include <stdio.h>
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23 #include <stdlib.h>
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24 #include "../src/systime.h"
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25
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26 #ifdef WIN32_NATIVE
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27 #include <sys/timeb.h>
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28
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29 /* Emulate gettimeofday (Ulrich Leodolter, 1/11/95). */
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30 void
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31 gettimeofday (struct timeval *tv, struct timezone *tz)
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32 {
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33 struct _timeb tb;
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34 _ftime (&tb);
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35
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36 tv->tv_sec = tb.time;
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37 tv->tv_usec = tb.millitm * 1000L;
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38 if (tz)
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39 {
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40 tz->tz_minuteswest = tb.timezone; /* minutes west of Greenwich */
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41 tz->tz_dsttime = tb.dstflag; /* type of dst correction */
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42 }
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43 }
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44 #endif
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45
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46 /* Generates an (extremely) pseudo random number for the dump-id */
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47 static unsigned int
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48 generate_dump_id (void)
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49 {
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50 EMACS_TIME thyme;
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51 EMACS_GET_TIME (thyme);
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52
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53 return (unsigned int) (EMACS_SECS (thyme) ^ EMACS_USECS (thyme));
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54 }
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55
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56 int
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57 main (int argc, char *argv[])
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58 {
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59 FILE *f;
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60
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61 if ((f = fopen ("dump-id.c", "w")) == NULL)
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62 {
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63 perror ("open dump-id.c");
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64 return EXIT_FAILURE;
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65 }
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66
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67 fprintf (f, "unsigned int dump_id = %uU;\n", generate_dump_id ());
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68
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69 if ((fclose (f)) != 0)
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70 {
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71 perror ("close dump-id.c");
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72 return EXIT_FAILURE;
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73 }
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74
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75 return EXIT_SUCCESS;
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76 }