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      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, Version 1.0 only
      6  * (the "License").  You may not use this file except in compliance
      7  * with the License.
      8  *
      9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
     10  * or http://www.opensolaris.org/os/licensing.
     11  * See the License for the specific language governing permissions
     12  * and limitations under the License.
     13  *
     14  * When distributing Covered Code, include this CDDL HEADER in each
     15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     16  * If applicable, add the following below this CDDL HEADER, with the
     17  * fields enclosed by brackets "[]" replaced with your own identifying
     18  * information: Portions Copyright [yyyy] [name of copyright owner]
     19  *
     20  * CDDL HEADER END
     21  */
     22 /*
     23  * Copyright 1997 Sun Microsystems, Inc.  All rights reserved.
     24  * Use is subject to license terms.
     25  */
     26 
     27 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
     28 /*	  All Rights Reserved  	*/
     29 
     30 #ifndef _SYS_VAR_H
     31 #define	_SYS_VAR_H
     32 
     33 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     34 
     35 #ifdef	__cplusplus
     36 extern "C" {
     37 #endif
     38 
     39 /*
     40  * System Configuration Information
     41  */
     42 struct var {
     43 	int	v_buf;		/* Nbr of I/O buffers.			*/
     44 	int	v_call;		/* Nbr of callout (timeout) entries.	*/
     45 	int	v_proc;		/* Max processes system wide		*/
     46 	int	v_maxupttl;	/* Max user processes system wide	*/
     47 	int	v_nglobpris;	/* Nbr of global sched prios configured	*/
     48 	int	v_maxsyspri;	/* Max global pri used by sys class.	*/
     49 	int	v_clist;	/* Nbr of clists allocated.		*/
     50 	int	v_maxup;	/* Max number of processes per user.	*/
     51 	int	v_hbuf;		/* Nbr of hash buffers to allocate.	*/
     52 	int	v_hmask;	/* Hash mask for buffers.		*/
     53 	int	v_pbuf;		/* Nbr of physical I/O buffers.		*/
     54 	int	v_sptmap;	/* Size of system virtual space		*/
     55 				/* allocation map.			*/
     56 	int	v_maxpmem;	/* The maximum physical memory to use.	*/
     57 				/* If v_maxpmem == 0, then use all	*/
     58 				/* available physical memory.		*/
     59 				/* Otherwise, value is amount of mem to	*/
     60 				/* use specified in pages.		*/
     61 	int	v_autoup;	/* The age a delayed-write buffer must	*/
     62 				/* be in seconds before bdflush will	*/
     63 				/* write it out.			*/
     64 	int	v_bufhwm;	/* high-water-mark of buffer cache	*/
     65 				/* memory usage, in units of K Bytes	*/
     66 };
     67 
     68 extern struct var v;
     69 
     70 #ifdef	__cplusplus
     71 }
     72 #endif
     73 
     74 #endif	/* _SYS_VAR_H */
     75