xref: /illumos-gate/usr/src/uts/common/sys/var.h (revision b4203d75)
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 1997 Sun Microsystems, Inc.  All rights reserved.
247c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
257c478bd9Sstevel@tonic-gate  */
267c478bd9Sstevel@tonic-gate 
277c478bd9Sstevel@tonic-gate /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
28*b4203d75SMarcel Telka /*	  All Rights Reserved	*/
297c478bd9Sstevel@tonic-gate 
307c478bd9Sstevel@tonic-gate #ifndef _SYS_VAR_H
317c478bd9Sstevel@tonic-gate #define	_SYS_VAR_H
327c478bd9Sstevel@tonic-gate 
337c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
347c478bd9Sstevel@tonic-gate extern "C" {
357c478bd9Sstevel@tonic-gate #endif
367c478bd9Sstevel@tonic-gate 
377c478bd9Sstevel@tonic-gate /*
387c478bd9Sstevel@tonic-gate  * System Configuration Information
397c478bd9Sstevel@tonic-gate  */
407c478bd9Sstevel@tonic-gate struct var {
417c478bd9Sstevel@tonic-gate 	int	v_buf;		/* Nbr of I/O buffers.			*/
427c478bd9Sstevel@tonic-gate 	int	v_call;		/* Nbr of callout (timeout) entries.	*/
437c478bd9Sstevel@tonic-gate 	int	v_proc;		/* Max processes system wide		*/
447c478bd9Sstevel@tonic-gate 	int	v_maxupttl;	/* Max user processes system wide	*/
457c478bd9Sstevel@tonic-gate 	int	v_nglobpris;	/* Nbr of global sched prios configured	*/
467c478bd9Sstevel@tonic-gate 	int	v_maxsyspri;	/* Max global pri used by sys class.	*/
477c478bd9Sstevel@tonic-gate 	int	v_clist;	/* Nbr of clists allocated.		*/
487c478bd9Sstevel@tonic-gate 	int	v_maxup;	/* Max number of processes per user.	*/
497c478bd9Sstevel@tonic-gate 	int	v_hbuf;		/* Nbr of hash buffers to allocate.	*/
507c478bd9Sstevel@tonic-gate 	int	v_hmask;	/* Hash mask for buffers.		*/
517c478bd9Sstevel@tonic-gate 	int	v_pbuf;		/* Nbr of physical I/O buffers.		*/
527c478bd9Sstevel@tonic-gate 	int	v_sptmap;	/* Size of system virtual space		*/
537c478bd9Sstevel@tonic-gate 				/* allocation map.			*/
547c478bd9Sstevel@tonic-gate 	int	v_maxpmem;	/* The maximum physical memory to use.	*/
557c478bd9Sstevel@tonic-gate 				/* If v_maxpmem == 0, then use all	*/
567c478bd9Sstevel@tonic-gate 				/* available physical memory.		*/
577c478bd9Sstevel@tonic-gate 				/* Otherwise, value is amount of mem to	*/
587c478bd9Sstevel@tonic-gate 				/* use specified in pages.		*/
597c478bd9Sstevel@tonic-gate 	int	v_autoup;	/* The age a delayed-write buffer must	*/
607c478bd9Sstevel@tonic-gate 				/* be in seconds before bdflush will	*/
617c478bd9Sstevel@tonic-gate 				/* write it out.			*/
627c478bd9Sstevel@tonic-gate 	int	v_bufhwm;	/* high-water-mark of buffer cache	*/
637c478bd9Sstevel@tonic-gate 				/* memory usage, in units of K Bytes	*/
647c478bd9Sstevel@tonic-gate };
657c478bd9Sstevel@tonic-gate 
667c478bd9Sstevel@tonic-gate extern struct var v;
677c478bd9Sstevel@tonic-gate 
687c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
697c478bd9Sstevel@tonic-gate }
707c478bd9Sstevel@tonic-gate #endif
717c478bd9Sstevel@tonic-gate 
727c478bd9Sstevel@tonic-gate #endif	/* _SYS_VAR_H */
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