69 lines
2.7 KiB
C
69 lines
2.7 KiB
C
/*-
|
|
* Copyright (c) 1990 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)
|
|
static char sccsid[] = "@(#)times.c 5.4 (Berkeley) 8/27/90";
|
|
#endif /* LIBC_SCCS and not lint */
|
|
|
|
#define _KERNEL
|
|
#include "ixemul.h"
|
|
|
|
#include <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(struct tms *tp)
|
|
{
|
|
struct rusage ru;
|
|
struct timeval t;
|
|
|
|
if (syscall(SYS_getrusage, RUSAGE_SELF, &ru) < 0)
|
|
return ((clock_t)-1);
|
|
tp->tms_utime = CONVTCK(ru.ru_utime);
|
|
tp->tms_stime = CONVTCK(ru.ru_stime);
|
|
if (syscall(SYS_getrusage, RUSAGE_CHILDREN, &ru) < 0)
|
|
return ((clock_t)-1);
|
|
tp->tms_cutime = CONVTCK(ru.ru_utime);
|
|
tp->tms_cstime = CONVTCK(ru.ru_stime);
|
|
if (syscall(SYS_gettimeofday, &t, (struct timezone *)0))
|
|
return ((clock_t)-1);
|
|
return ((clock_t)(CONVTCK(t)));
|
|
}
|