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freebsd/contrib/traceroute/usleep.c
2002-07-28 02:24:33 +00:00

33 lines
593 B
C

#ifndef lint
static const char rcsid[] =
"@(#) $Id: usleep.c,v 1.1 2000/09/16 05:31:06 leres Exp $ (LBL)";
#endif
#include <sys/types.h>
#include <sys/time.h>
#include <stdio.h>
#include "gnuc.h"
#ifdef HAVE_OS_PROTO_H
#include "os-proto.h"
#endif
int
usleep(register u_int useconds)
{
#ifdef HAVE_NANOSLEEP
struct timespec ts;
ts.tv_sec = useconds / 1000000;
ts.tv_nsec = (useconds % 1000000) * 1000;
return (nanosleep(&ts, NULL));
#else
struct timeval tv;
tv.tv_sec = useconds / 1000000;
tv.tv_usec = useconds % 1000000;
return (select(0, NULL, NULL, NULL, &tv));
#endif
}