1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27/*	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T	*/
28/*	  All Rights Reserved  	*/
29
30/*
31 * Portions of this source code were derived from Berkeley 4.3 BSD
32 * under license from the Regents of the University of California.
33 */
34
35#pragma ident	"%Z%%M%	%I%	%E% SMI"
36
37/*
38 * Compatibility lib for BSD's getrusgae(). Only the
39 * CPU time usage is supported for RUSAGE_CHILDREN, and hence does not
40 * fully support BSD's rusage semantics.
41 */
42
43#include "lint.h"
44#include <sys/types.h>
45#include <sys/time.h>
46#include <sys/times.h>
47#include <stdio.h>
48#include <sys/param.h>
49#include <errno.h>
50#include <sys/resource.h>
51#include <sys/vm_usage.h>
52#include <fcntl.h>
53#include <sys/fcntl.h>
54#include <procfs.h>
55#include <string.h>
56#include <unistd.h>
57
58int __rusagesys(int, struct rusage *);
59
60int
61getrusage(int who, struct rusage *rusage)
62{
63	switch (who) {
64
65	case RUSAGE_SELF:
66		return (__rusagesys(_RUSAGESYS_GETRUSAGE, rusage));
67
68	case RUSAGE_LWP:
69		return (__rusagesys(_RUSAGESYS_GETRUSAGE_LWP, rusage));
70
71	case RUSAGE_CHILDREN:
72		return (__rusagesys(_RUSAGESYS_GETRUSAGE_CHLD, rusage));
73
74	default:
75		errno = EINVAL;
76		return (-1);
77	}
78}
79
80int
81getvmusage(uint_t flags, time_t age, vmusage_t *buf, size_t *nres)
82{
83	return (syscall(SYS_rusagesys, _RUSAGESYS_GETVMUSAGE, flags, age,
84	    buf, nres));
85}
86