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 /*
36 * Compatibility lib for BSD's getrusgae(). Only the
37 * CPU time usage is supported for RUSAGE_CHILDREN, and hence does not
38 * fully support BSD's rusage semantics.
39 */
40
41 #include "lint.h"
42 #include <sys/types.h>
43 #include <sys/time.h>
44 #include <sys/times.h>
45 #include <stdio.h>
46 #include <sys/param.h>
47 #include <errno.h>
48 #include <sys/resource.h>
49 #include <sys/vm_usage.h>
50 #include <fcntl.h>
51 #include <sys/fcntl.h>
52 #include <procfs.h>
53 #include <string.h>
54 #include <unistd.h>
55
56 int __rusagesys(int, struct rusage *);
57
58 int
getrusage(int who,struct rusage * rusage)59 getrusage(int who, struct rusage *rusage)
60 {
61 switch (who) {
62
63 case RUSAGE_SELF:
64 return (__rusagesys(_RUSAGESYS_GETRUSAGE, rusage));
65
66 case RUSAGE_LWP:
67 return (__rusagesys(_RUSAGESYS_GETRUSAGE_LWP, rusage));
68
69 case RUSAGE_CHILDREN:
70 return (__rusagesys(_RUSAGESYS_GETRUSAGE_CHLD, rusage));
71
72 default:
73 errno = EINVAL;
74 return (-1);
75 }
76 }
77
78 int
getvmusage(uint_t flags,time_t age,vmusage_t * buf,size_t * nres)79 getvmusage(uint_t flags, time_t age, vmusage_t *buf, size_t *nres)
80 {
81 return (syscall(SYS_rusagesys, _RUSAGESYS_GETVMUSAGE, flags, age,
82 buf, nres));
83 }
84