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 SXEmacs.
6 SXEmacs is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 SXEmacs is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>. */
19 #include "../src/config.h"
22 #include "../src/systime.h"
24 /* Generates an (extremely) pseudo random number for the dump-id */
25 static unsigned int generate_dump_id(void)
28 EMACS_GET_TIME(thyme);
30 return (unsigned int)(EMACS_SECS(thyme) ^ EMACS_USECS(thyme));
33 int main(int argc, char *argv[])
37 if ((f = fopen("dump-id.c", "w")) == NULL) {
38 perror("open dump-id.c");
42 fprintf(f, "unsigned int dump_id = %uU;\n", generate_dump_id());
44 if ((fclose(f)) != 0) {
45 perror("close dump-id.c");