xref: /onnv-gate/usr/src/lib/libc/port/gen/getrusage.c (revision 3247:e05001c14ea2)
10Sstevel@tonic-gate /*
20Sstevel@tonic-gate  * CDDL HEADER START
30Sstevel@tonic-gate  *
40Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*3247Sgjelinek  * Common Development and Distribution License (the "License").
6*3247Sgjelinek  * You may not use this file except in compliance with the License.
70Sstevel@tonic-gate  *
80Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
90Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
100Sstevel@tonic-gate  * See the License for the specific language governing permissions
110Sstevel@tonic-gate  * and limitations under the License.
120Sstevel@tonic-gate  *
130Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
140Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
150Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
160Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
170Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
180Sstevel@tonic-gate  *
190Sstevel@tonic-gate  * CDDL HEADER END
200Sstevel@tonic-gate  */
210Sstevel@tonic-gate /*
22*3247Sgjelinek  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
230Sstevel@tonic-gate  * Use is subject to license terms.
240Sstevel@tonic-gate  */
250Sstevel@tonic-gate 
260Sstevel@tonic-gate /*	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T	*/
270Sstevel@tonic-gate /*	  All Rights Reserved  	*/
280Sstevel@tonic-gate 
290Sstevel@tonic-gate /*
300Sstevel@tonic-gate  * Portions of this source code were derived from Berkeley 4.3 BSD
310Sstevel@tonic-gate  * under license from the Regents of the University of California.
320Sstevel@tonic-gate  */
330Sstevel@tonic-gate 
340Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
350Sstevel@tonic-gate 
360Sstevel@tonic-gate #include "synonyms.h"
370Sstevel@tonic-gate 
380Sstevel@tonic-gate /*
390Sstevel@tonic-gate  * Compatibility lib for BSD's getrusgae(). Only the
400Sstevel@tonic-gate  * CPU time usage is supported for RUSAGE_CHILDREN, and hence does not
410Sstevel@tonic-gate  * fully support BSD's rusage semantics.
420Sstevel@tonic-gate  */
430Sstevel@tonic-gate 
440Sstevel@tonic-gate #include <sys/types.h>
450Sstevel@tonic-gate #include <sys/time.h>
460Sstevel@tonic-gate #include <sys/times.h>
470Sstevel@tonic-gate #include <stdio.h>
480Sstevel@tonic-gate #include <sys/param.h>
490Sstevel@tonic-gate #include <errno.h>
500Sstevel@tonic-gate #include <sys/resource.h>
51*3247Sgjelinek #include <sys/vm_usage.h>
520Sstevel@tonic-gate #include <fcntl.h>
530Sstevel@tonic-gate #include <sys/fcntl.h>
540Sstevel@tonic-gate #include <procfs.h>
550Sstevel@tonic-gate #include <string.h>
560Sstevel@tonic-gate #include <unistd.h>
570Sstevel@tonic-gate 
580Sstevel@tonic-gate int __rusagesys(int, struct rusage *);
590Sstevel@tonic-gate 
600Sstevel@tonic-gate int
610Sstevel@tonic-gate getrusage(int who, struct rusage *rusage)
620Sstevel@tonic-gate {
630Sstevel@tonic-gate 	switch (who) {
640Sstevel@tonic-gate 
650Sstevel@tonic-gate 	case RUSAGE_SELF:
660Sstevel@tonic-gate 		return (__rusagesys(_RUSAGESYS_GETRUSAGE, rusage));
670Sstevel@tonic-gate 
680Sstevel@tonic-gate 	case RUSAGE_LWP:
690Sstevel@tonic-gate 		return (__rusagesys(_RUSAGESYS_GETRUSAGE_LWP, rusage));
700Sstevel@tonic-gate 
710Sstevel@tonic-gate 	case RUSAGE_CHILDREN:
720Sstevel@tonic-gate 		return (__rusagesys(_RUSAGESYS_GETRUSAGE_CHLD, rusage));
730Sstevel@tonic-gate 
740Sstevel@tonic-gate 	default:
750Sstevel@tonic-gate 		errno = EINVAL;
760Sstevel@tonic-gate 		return (-1);
770Sstevel@tonic-gate 	}
780Sstevel@tonic-gate }
79*3247Sgjelinek 
80*3247Sgjelinek int
81*3247Sgjelinek getvmusage(uint_t flags, time_t age, vmusage_t *buf, size_t *nres)
82*3247Sgjelinek {
83*3247Sgjelinek 	return (syscall(SYS_rusagesys, _RUSAGESYS_GETVMUSAGE, flags, age,
84*3247Sgjelinek 	    buf, nres));
85*3247Sgjelinek }
86