4.3BSD-UWisc/src/lib/libc/compat-4.1/times.c

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#if defined(LIBC_RCS) && !defined(lint)
static char rcs_id[] =
	"$Header: times.c,v 1.2 86/09/08 17:02:27 tadl Exp $";
#endif
/*
 * RCS info
 *	$Locker:  $
 */
/*
 * Copyright (c) 1980 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)times.c	5.2 (Berkeley) 3/9/86";
#endif LIBC_SCCS and not lint

#include <sys/time.h>
#include <sys/resource.h>

/*
 * Backwards compatible times.
 */
struct tms {
	int	tms_utime;		/* user time */
	int	tms_stime;		/* system time */
	int	tms_cutime;		/* user time, children */
	int	tms_cstime;		/* system time, children */
};

times(tmsp)
	register struct tms *tmsp;
{
	struct rusage ru;

	if (getrusage(RUSAGE_SELF, &ru) < 0)
		return (-1);
	tmsp->tms_utime = scale60(&ru.ru_utime);
	tmsp->tms_stime = scale60(&ru.ru_stime);
	if (getrusage(RUSAGE_CHILDREN, &ru) < 0)
		return (-1);
	tmsp->tms_cutime = scale60(&ru.ru_utime);
	tmsp->tms_cstime = scale60(&ru.ru_stime);
	return (0);
}

static
scale60(tvp)
	register struct timeval *tvp;
{

	return (tvp->tv_sec * 60 + tvp->tv_usec / 16667);
}