annotate lib-src/make-dump-id.c @ 1648:712931b4b71d

[xemacs-hg @ 2003-08-27 18:06:54 by youngs] 2003-08-28 Steve Youngs <youngs@xemacs.org> * README.packages: Update. 2003-08-28 Steve Youngs <youngs@xemacs.org> * PACKAGES: Update. 2003-08-28 Steve Youngs <youngs@xemacs.org> * xemacs-faq.texi (Q2.0.2): Rewrite, mentioning the correct way to remove a package. (Q3.8.2): big-menubar is in the edit-utils package. (Q4.3.2): Add a comment about not needing TM for things like Gnus, MH-E and VM. (Q5.3.3): State correct location of ps-print.el. * xemacs/packages.texi (Packages): Remove "Creating Packages" menu entry. (Package Terminology): Whitespace clean up. (Installing Packages): Whitespace clean up and add some @code formatters. Re-organise the menu so that installation via PUI is first and Sumo is last. (Automatically): mule-base is no longer a requirement for using PUI. Mention optionally requiring mailcrypt. (Note): Removed. (Manually): Move to below the PUI installation method. (Sumo): Move to below the manual installation method. (Which Packages): Add mailcrypt. (Building Packages): Remove duplicated stuff that is in lispref/packaging.texi, xref to it instead. (Local.rules File): xref to the appropriate node in lispref/packaging.texi. (Available Packages): Update to current reality. (all): Removed. (srckit): Removed. (binkit): Removed. * xemacs/reading.texi (Reading Mail): Mention Gnus and MEW. * new-users-guide/custom2.texi (Init File): big-menubar.el is in the edit-utils package. * lispref/packaging.texi (Packaging): (The User View): (The Library Maintainer View): (Infrastructure): (Control Files): (Obtaining): (The Package Release Engineer View): (Package Terminology): (Building Packages): (Makefile Targets): (packages): New. (Local.rules File): (XEMACS_PACKAGES): Removed. (XEMACS_INSTALLED_PACKAGES_ROOT): New. (NONMULE_PACKAGES): New. (EXCLUDES): New. (Creating Packages): (BATCH): New. (VERSION): Removed. (AUTHOR_VERSION): Removed. (MAINTAINER): Removed. (PACKAGE): Removed. (PKG_TYPE): Removed. (REQUIRES): Removed. (CATEGORY): Removed. (ELS): Removed. (ELCS): Removed. (all): Removed. (srckit): Removed. (binkit): Removed. (are): New. (STANDARD_DOCS): New. (ELCS_1_DEST): New. (example): New. (PACKAGE_SUPPRESS): New. (EXPLICIT_DOCS): New. (DATA_DEST): New. (Documenting Packages): Not quite a total rewrite, but a fairly thorough audit nonetheless.
author youngs
date Wed, 27 Aug 2003 18:07:10 +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 }