getrusage.c revision 7257d1b4d25bfac0c802847390e98a464fd787ac
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* Portions of this source code were derived from Berkeley 4.3 BSD
* under license from the Regents of the University of California.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* Compatibility lib for BSD's getrusgae(). Only the
* CPU time usage is supported for RUSAGE_CHILDREN, and hence does not
* fully support BSD's rusage semantics.
*/
#include "lint.h"
#include <sys/types.h>
#include <sys/time.h>
#include <sys/times.h>
#include <stdio.h>
#include <sys/param.h>
#include <errno.h>
#include <sys/resource.h>
#include <sys/vm_usage.h>
#include <fcntl.h>
#include <sys/fcntl.h>
#include <procfs.h>
#include <string.h>
#include <unistd.h>
int __rusagesys(int, struct rusage *);
int
getrusage(int who, struct rusage *rusage)
{
switch (who) {
case RUSAGE_SELF:
return (__rusagesys(_RUSAGESYS_GETRUSAGE, rusage));
case RUSAGE_LWP:
return (__rusagesys(_RUSAGESYS_GETRUSAGE_LWP, rusage));
case RUSAGE_CHILDREN:
return (__rusagesys(_RUSAGESYS_GETRUSAGE_CHLD, rusage));
default:
errno = EINVAL;
return (-1);
}
}
int
getvmusage(uint_t flags, time_t age, vmusage_t *buf, size_t *nres)
{
return (syscall(SYS_rusagesys, _RUSAGESYS_GETVMUSAGE, flags, age,
buf, nres));
}