17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate * CDDL HEADER START
37c478bd9Sstevel@tonic-gate *
47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
57c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
67c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
77c478bd9Sstevel@tonic-gate * with the License.
87c478bd9Sstevel@tonic-gate *
97c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
107c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
117c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
127c478bd9Sstevel@tonic-gate * and limitations under the License.
137c478bd9Sstevel@tonic-gate *
147c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
157c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
167c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
177c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
187c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
197c478bd9Sstevel@tonic-gate *
207c478bd9Sstevel@tonic-gate * CDDL HEADER END
217c478bd9Sstevel@tonic-gate */
227c478bd9Sstevel@tonic-gate /*
237c478bd9Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
247c478bd9Sstevel@tonic-gate * Use is subject to license terms.
25*81d43577SJerry Jelinek * Copyright 2011 Joyent, Inc. All rights reserved.
267c478bd9Sstevel@tonic-gate */
277c478bd9Sstevel@tonic-gate
287c478bd9Sstevel@tonic-gate #include <sys/types.h>
297c478bd9Sstevel@tonic-gate #include <sys/systm.h>
307c478bd9Sstevel@tonic-gate #include <sys/errno.h>
317c478bd9Sstevel@tonic-gate #include <sys/loadavg.h>
327c478bd9Sstevel@tonic-gate #include <sys/zone.h>
337c478bd9Sstevel@tonic-gate #include <sys/pool_pset.h>
347c478bd9Sstevel@tonic-gate
357c478bd9Sstevel@tonic-gate /*
367c478bd9Sstevel@tonic-gate * Extract elements of the raw avenrun array from the kernel for the
377c478bd9Sstevel@tonic-gate * implementation of getloadavg(3c)
387c478bd9Sstevel@tonic-gate */
397c478bd9Sstevel@tonic-gate int
getloadavg(int * buf,int nelem)407c478bd9Sstevel@tonic-gate getloadavg(int *buf, int nelem)
417c478bd9Sstevel@tonic-gate {
427c478bd9Sstevel@tonic-gate int *loadbuf = &avenrun[0];
437c478bd9Sstevel@tonic-gate int error;
447c478bd9Sstevel@tonic-gate
457c478bd9Sstevel@tonic-gate if (nelem < 0)
467c478bd9Sstevel@tonic-gate return (set_errno(EINVAL));
477c478bd9Sstevel@tonic-gate if (nelem > LOADAVG_NSTATS)
487c478bd9Sstevel@tonic-gate nelem = LOADAVG_NSTATS;
497c478bd9Sstevel@tonic-gate
507c478bd9Sstevel@tonic-gate if (!INGLOBALZONE(curproc)) {
51*81d43577SJerry Jelinek loadbuf = &curproc->p_zone->zone_avenrun[0];
527c478bd9Sstevel@tonic-gate }
537c478bd9Sstevel@tonic-gate
547c478bd9Sstevel@tonic-gate error = copyout(loadbuf, buf, nelem * sizeof (avenrun[0]));
557c478bd9Sstevel@tonic-gate if (error)
567c478bd9Sstevel@tonic-gate return (set_errno(EFAULT));
577c478bd9Sstevel@tonic-gate return (nelem);
587c478bd9Sstevel@tonic-gate }
59