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/* select replacement for DOS computers for ms only
Copyright (C) 1995,1998 Free Software Foundation, Inc.
This file is part of Gforth.
Gforth is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <sys/time.h>
int select(int n, fd_set *a, fd_set *b, fd_set *c, struct timeval * timeout)
{
struct timeval time1;
struct timeval time2;
struct timezone zone1;
gettimeofday(&time1,&zone1);
time1.tv_sec += timeout->tv_sec;
time1.tv_usec += timeout->tv_usec;
if(time1.tv_usec >= 1000000) {
time1.tv_sec += time1.tv_usec / 1000000;
time1.tv_usec %= 1000000;
}
do {
gettimeofday(&time2,&zone1);
} while((time2.tv_sec < time1.tv_sec) ||
((time2.tv_usec < time1.tv_usec) &&
(time2.tv_sec == time1.tv_sec)));
}
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