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Linux Cubed Series 7: Sunsite
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zyxel-1.5-s
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usleep.c
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1994-02-02
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/* Copyright (C) 1992 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
/* modified for standalone compilation by R.E. Janssen (PE1CHL) */
#include <unistd.h>
#include <sys/types.h>
#include <sys/time.h>
/* Sleep USECONDS microseconds, or until a previously set timer goes off. */
unsigned int usleep(unsigned int useconds)
{
struct timeval delay;
delay.tv_sec = useconds / 1000000;
delay.tv_usec = useconds % 1000000;
(void) select(0, (fd_set *) NULL, (fd_set *) NULL, (fd_set *) NULL, &delay);
return 0;
}