1 /* Generate a unique dump-id for use with the portable dumper.
2 Copyright (C) 2000 Olivier Galibert, Martin Buchholz
4 This file is part of XEmacs.
6 XEmacs is free software; you can redistribute it and/or modify it
7 under the terms of the GNU General Public License as published by the
8 Free Software Foundation; either version 2, or (at your option) any
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
16 You should have received a copy of the GNU General Public License
17 along with XEmacs; see the file COPYING. If not, write to
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
24 #include "../src/systime.h"
27 #include <sys/timeb.h>
29 /* Emulate gettimeofday (Ulrich Leodolter, 1/11/95). */
31 gettimeofday (struct timeval *tv, struct timezone *tz)
37 tv->tv_usec = tb.millitm * 1000L;
40 tz->tz_minuteswest = tb.timezone; /* minutes west of Greenwich */
41 tz->tz_dsttime = tb.dstflag; /* type of dst correction */
46 /* Generates an (extremely) pseudo random number for the dump-id */
48 generate_dump_id (void)
51 EMACS_GET_TIME (thyme);
53 return (unsigned int) (EMACS_SECS (thyme) ^ EMACS_USECS (thyme));
57 main (int argc, char *argv[])
61 if ((f = fopen ("dump-id.c", "w")) == NULL)
63 perror ("open dump-id.c");
68 "#include <dump-id.h>\n"
69 "unsigned int dump_id = %uU;\n",
72 if ((fclose (f)) != 0)
74 perror ("close dump-id.c");