annotate lib-src/make-dump-id.c @ 1333:1b0339b048ce

[xemacs-hg @ 2003-03-02 09:38:37 by ben] To: xemacs-patches@xemacs.org PROBLEMS: Include nt/PROBLEMS and update. Add note about incremental linking badness. cmdloop.el, custom.el, dumped-lisp.el, files.el, keydefs.el, keymap.el, lisp-mode.el, make-docfile.el, replace.el, simple.el, subr.el, view-less.el, wid-edit.el: Lots of syncing with FSF 21.2. Use if-fboundp in wid-edit.el. New file newcomment.el from FSF. internals/internals.texi: Fix typo. (Build-Time Dependencies): New node. PROBLEMS: Delete. config.inc.samp, xemacs.mak: Eliminate HAVE_VC6, use SUPPORT_EDIT_AND_CONTINUE in its place. No incremental linking unless SUPPORT_EDIT_AND_CONTINUE, since it can cause nasty crashes in pdump. Put warnings about this in config.inc.samp. Report the full compile flags used for src and lib-src in the Installation output. alloc.c, lisp.h, ralloc.c, regex.c: Use ALLOCA() in regex.c to avoid excessive stack allocation. Also fix subtle problem with REL_ALLOC() -- any call to malloc() (direct or indirect) may relocate rel-alloced data, causing buffer text to shift. After any such call, regex must update all its pointers to such data. Add a system, when ERROR_CHECK_MALLOC, whereby regex.c indicates all the places it is prepared to handle malloc()/realloc()/free(), and any calls anywhere in XEmacs outside of this will trigger an abort. alloc.c, dialog-msw.c, eval.c, event-stream.c, general-slots.h, insdel.c, lisp.h, menubar-msw.c, menubar-x.c: Change *run_hook*_trapping_problems to take a warning class, not a string. Factor out code to issue warnings, add flag to call_trapping_problems() to postpone warning issue, and make *run_hook*_trapping_problems issue their own warnings tailored to the hook, postponed in the case of safe_run_hook_trapping_problems() so that the appropriate message can be issued about resetting to nil only when not `quit'. Make record_unwind_protect_restoring_int() non-static. dumper.c: Issue notes about incremental linking problems under Windows. fileio.c: Mule-ize encrypt/decrypt-string code. text.h: Spacing changes.
author ben
date Sun, 02 Mar 2003 09:38:54 +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 }