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      1 /*	$NetBSD: kstat.h,v 1.4 2018/05/28 21:05:10 chs Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2009 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Andrew Doran.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 /*-
     33  * Copyright (c) 2007 Pawel Jakub Dawidek <pjd (at) FreeBSD.org>
     34  * All rights reserved.
     35  *
     36  * Redistribution and use in source and binary forms, with or without
     37  * modification, are permitted provided that the following conditions
     38  * are met:
     39  * 1. Redistributions of source code must retain the above copyright
     40  *    notice, this list of conditions and the following disclaimer.
     41  * 2. Redistributions in binary form must reproduce the above copyright
     42  *    notice, this list of conditions and the following disclaimer in the
     43  *    documentation and/or other materials provided with the distribution.
     44  *
     45  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
     46  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     47  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     48  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
     49  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     50  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     51  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     52  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     53  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     54  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     55  * SUCH DAMAGE.
     56  *
     57  * $FreeBSD: head/sys/cddl/compat/opensolaris/sys/kstat.h 315896 2017-03-24 09:37:00Z mav $
     58  */
     59 
     60 #ifndef _OPENSOLARIS_SYS_KSTAT_H_
     61 #define	_OPENSOLARIS_SYS_KSTAT_H_
     62 
     63 #include <sys/sysctl.h>
     64 
     65 #define	KSTAT_TYPE_NAMED	1
     66 
     67 #define	KSTAT_FLAG_VIRTUAL	0x01
     68 
     69 #define	KSTAT_READ	0
     70 #define	KSTAT_WRITE	1
     71 
     72 typedef struct kstat {
     73 	void	*ks_data;
     74 	u_int	 ks_ndata;
     75 #ifdef _KERNEL
     76 	struct sysctllog *ks_clog;
     77 	const struct sysctlnode *ks_node;
     78 #endif
     79 	int		(*ks_update)(struct kstat *, int); /* dynamic update */
     80 	void		*ks_private;	/* arbitrary provider-private data */
     81 } kstat_t;
     82 
     83 typedef struct kstat_named {
     84 #define	KSTAT_STRLEN	31
     85 	char	name[KSTAT_STRLEN];
     86 #define	KSTAT_DATA_CHAR		0
     87 #define	KSTAT_DATA_INT32	1
     88 #define	KSTAT_DATA_UINT32	2
     89 #define	KSTAT_DATA_INT64	3
     90 #define	KSTAT_DATA_UINT64	4
     91 	uchar_t	data_type;
     92 #define	KSTAT_DESCLEN		128
     93 	char	desc[KSTAT_DESCLEN];
     94 	union {
     95 		uint64_t	ui64;
     96 	} value;
     97 } kstat_named_t;
     98 
     99 kstat_t *kstat_create(char *module, int instance, char *name, char *class,
    100     uchar_t type, ulong_t ndata, uchar_t flags);
    101 void kstat_install(kstat_t *ksp);
    102 void kstat_delete(kstat_t *ksp);
    103 void kstat_set_string(char *, const char *);
    104 void kstat_named_init(kstat_named_t *, const char *, uchar_t);
    105 
    106 #endif	/* _OPENSOLARIS_SYS_KSTAT_H_ */
    107