kstat.h

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    1 /*-
    2  * Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org>
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  *
   26  * $FreeBSD$
   27  */
   28 
   29 #ifndef _OPENSOLARIS_SYS_KSTAT_H_
   30 #define _OPENSOLARIS_SYS_KSTAT_H_
   31 
   32 #include <sys/sysctl.h>
   33 
   34 #define KSTAT_TYPE_RAW          0       /* can be anything */
   35                                         /* ks_ndata >= 1 */
   36 #define KSTAT_TYPE_NAMED        1       /* name/value pair */
   37                                         /* ks_ndata >= 1 */
   38 #define KSTAT_TYPE_INTR         2       /* interrupt statistics */
   39                                         /* ks_ndata == 1 */
   40 #define KSTAT_TYPE_IO           3       /* I/O statistics */
   41                                         /* ks_ndata == 1 */
   42 #define KSTAT_TYPE_TIMER        4       /* event timer */
   43                                         /* ks_ndata >= 1 */
   44 
   45 #define KSTAT_NUM_TYPES         5
   46 
   47 #define KSTAT_FLAG_VIRTUAL      0x01
   48 
   49 #define KSTAT_READ      0
   50 #define KSTAT_WRITE     1
   51 
   52 typedef struct kstat {
   53         void    *ks_data;
   54         u_int    ks_ndata;
   55 #ifdef _KERNEL
   56         struct sysctl_ctx_list ks_sysctl_ctx;
   57         struct sysctl_oid *ks_sysctl_root;
   58 #endif
   59         int             (*ks_update)(struct kstat *, int); /* dynamic update */
   60         void            *ks_private;    /* arbitrary provider-private data */
   61 } kstat_t;
   62 
   63 typedef struct kstat_named {
   64 #define KSTAT_STRLEN    31
   65         char    name[KSTAT_STRLEN];
   66 #define KSTAT_DATA_CHAR         0
   67 #define KSTAT_DATA_INT32        1
   68 #define KSTAT_DATA_UINT32       2
   69 #define KSTAT_DATA_INT64        3
   70 #define KSTAT_DATA_UINT64       4
   71         uchar_t data_type;
   72 #define KSTAT_DESCLEN           128
   73         char    desc[KSTAT_DESCLEN];
   74         union {
   75                 uint64_t        ui64;
   76         } value;
   77 } kstat_named_t;
   78 
   79 kstat_t *kstat_create(char *module, int instance, char *name, char *cls,
   80     uchar_t type, ulong_t ndata, uchar_t flags);
   81 void kstat_install(kstat_t *ksp);
   82 void kstat_delete(kstat_t *ksp);
   83 void kstat_set_string(char *, const char *);
   84 void kstat_named_init(kstat_named_t *, const char *, uchar_t);
   85 
   86 #endif  /* _OPENSOLARIS_SYS_KSTAT_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/cddl/compat/opensolaris/sys/kstat.h

FreeBSD/Linux Kernel Cross Reference
sys/cddl/compat/opensolaris/sys/kstat.h