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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (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 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
* Copyright 2011 Joyent, Inc. All rights reserved.
*/
#include <sys/types.h>
#include <sys/systm.h>
#include <sys/errno.h>
#include <sys/loadavg.h>
#include <sys/zone.h>
#include <sys/pool_pset.h>
/*
* Extract elements of the raw avenrun array from the kernel for the
* implementation of getloadavg(3c)
*/
int
getloadavg(int *buf, int nelem)
{
int *loadbuf = &avenrun[0];
int error;
if (nelem < 0)
return (set_errno(EINVAL));
if (nelem > LOADAVG_NSTATS)
nelem = LOADAVG_NSTATS;
if (!INGLOBALZONE(curproc)) {
loadbuf = &curproc->p_zone->zone_avenrun[0];
}
error = copyout(loadbuf, buf, nelem * sizeof (avenrun[0]));
if (error)
return (set_errno(EFAULT));
return (nelem);
}
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