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/* $NetBSD: times.c,v 1.4 1995/02/27 05:54:09 cgd Exp $ */
/*-
* Copyright (c) 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#if defined(LIBC_SCCS) && !defined(lint)
#if 0
static char sccsid[] = "@(#)times.c 8.1 (Berkeley) 6/4/93";
#else
static char rcsid[] = "$NetBSD: times.c,v 1.4 1995/02/27 05:54:09 cgd Exp $";
#endif
#endif /* LIBC_SCCS and not lint */
#include <sys/param.h>
#include <sys/time.h>
#include <sys/times.h>
#include <sys/resource.h>
/*
* Convert usec to clock ticks; could do (usec * CLK_TCK) / 1000000,
* but this would overflow if we switch to nanosec.
*/
#define CONVTCK(r) (r.tv_sec * CLK_TCK + r.tv_usec / (1000000 / CLK_TCK))
clock_t
times(tp)
register struct tms *tp;
{
struct rusage ru;
struct timeval t;
if (getrusage(RUSAGE_SELF, &ru) < 0)
return ((clock_t)-1);
tp->tms_utime = CONVTCK(ru.ru_utime);
tp->tms_stime = CONVTCK(ru.ru_stime);
if (getrusage(RUSAGE_CHILDREN, &ru) < 0)
return ((clock_t)-1);
tp->tms_cutime = CONVTCK(ru.ru_utime);
tp->tms_cstime = CONVTCK(ru.ru_stime);
if (gettimeofday(&t, (struct timezone *)0))
return ((clock_t)-1);
return ((clock_t)(CONVTCK(t)));
}
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