1: /* select replacement for DOS computers for ms only
2:
3: Copyright (C) 1995 Free Software Foundation, Inc.
4:
5: This file is part of Gforth.
6:
7: Gforth is free software; you can redistribute it and/or
8: modify it under the terms of the GNU General Public License
9: as published by the Free Software Foundation; either version 2
10: of the License, or (at your option) any later version.
11:
12: This program is distributed in the hope that it will be useful,
13: but WITHOUT ANY WARRANTY; without even the implied warranty of
14: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15: GNU General Public License for more details.
16:
17: You should have received a copy of the GNU General Public License
18: along with this program; if not, write to the Free Software
19: Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20: */
21:
22:
23: #include <sys/time.h>
24:
25: void select(int n, int a, int b, int c, struct timeval * timeout)
26: {
27: struct timeval time1;
28: struct timeval time2;
29: struct timezone zone1;
30:
31: gettimeofday(&time1,&zone1);
32: time1.tv_sec += timeout->tv_sec;
33: time1.tv_usec += timeout->tv_usec;
34: if(time1.tv_usec >= 1000000)
35: {
36: time1.tv_sec += time1.tv_usec / 1000000;
37: time1.tv_usec %= 1000000;
38: }
39: do
40: {
41: gettimeofday(&time2,&zone1);
42: }
43: while(time2.tv_sec < time1.tv_sec);
44:
45: do
46: {
47: gettimeofday(&time2,&zone1);
48: }
49: while(time2.tv_usec < time1.tv_usec &&
50: time2.tv_sec == time1.tv_sec);
51:
52: }
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>