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 (c) 1992 by Sun Microsystems, Inc. 24 * Copyright 2021 Oxide Computer Company 25 */ 26 27 #ifndef _KSTAT_H 28 #define _KSTAT_H 29 30 #include <sys/types.h> 31 #include <sys/kstat.h> 32 33 #ifdef __cplusplus 34 extern "C" { 35 #endif 36 37 /* 38 * kstat_open() returns a pointer to a kstat_ctl_t. 39 * This is used for subsequent libkstat operations. 40 */ 41 typedef struct kstat_ctl { 42 kid_t kc_chain_id; /* current kstat chain ID */ 43 kstat_t *kc_chain; /* pointer to kstat chain */ 44 int kc_kd; /* /dev/kstat descriptor */ 45 } kstat_ctl_t; 46 47 extern kstat_ctl_t *kstat_open(void); 48 extern int kstat_close(kstat_ctl_t *); 49 extern kid_t kstat_read(kstat_ctl_t *, kstat_t *, void *); 50 extern kid_t kstat_write(kstat_ctl_t *, kstat_t *, void *); 51 extern kid_t kstat_chain_update(kstat_ctl_t *); 52 extern kstat_t *kstat_lookup(kstat_ctl_t *, const char *, int, 53 const char *); 54 extern void *kstat_data_lookup(kstat_t *, const char *); 55 56 #ifdef __cplusplus 57 } 58 #endif 59 60 #endif /* _KSTAT_H */ 61