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#ifndef _SPL_KSTAT_H
#define _SPL_KSTAT_H
#ifdef __cplusplus
extern "C" {
#endif
#include <linux/module.h>
#include "spl-types.h"
#include "spl-time.h"
/* XXX - The minimum functionality here is stubbed out but nothing works. */
#define KSTAT_STRLEN 31 /* 30 chars + NULL; must be 16 * n - 1 */
#define KSTAT_TYPE_RAW 0 /* can be anything */
/* ks_ndata >= 1 */
#define KSTAT_TYPE_NAMED 1 /* name/value pair */
/* ks_ndata >= 1 */
#define KSTAT_TYPE_INTR 2 /* interrupt statistics */
/* ks_ndata == 1 */
#define KSTAT_TYPE_IO 3 /* I/O statistics */
/* ks_ndata == 1 */
#define KSTAT_TYPE_TIMER 4 /* event timer */
/* ks_ndata >= 1 */
#define KSTAT_NUM_TYPES 5
#define KSTAT_DATA_CHAR 0
#define KSTAT_DATA_INT32 1
#define KSTAT_DATA_UINT32 2
#define KSTAT_DATA_INT64 3
#define KSTAT_DATA_UINT64 4
#define KSTAT_FLAG_VIRTUAL 0x01
#define KSTAT_FLAG_VAR_SIZE 0x02
#define KSTAT_FLAG_WRITABLE 0x04
#define KSTAT_FLAG_PERSISTENT 0x08
#define KSTAT_FLAG_DORMANT 0x10
#define KSTAT_FLAG_INVALID 0x2
typedef int kid_t; /* unique kstat id */
typedef struct kstat_s {
/*
* Fields relevant to both kernel and user
*/
hrtime_t ks_crtime; /* creation time (from gethrtime()) */
struct kstat_s *ks_next; /* kstat chain linkage */
kid_t ks_kid; /* unique kstat ID */
char ks_module[KSTAT_STRLEN]; /* provider module name */
uchar_t ks_resv; /* reserved, currently just padding */
int ks_instance; /* provider module's instance */
char ks_name[KSTAT_STRLEN]; /* kstat name */
uchar_t ks_type; /* kstat data type */
char ks_class[KSTAT_STRLEN]; /* kstat class */
uchar_t ks_flags; /* kstat flags */
void *ks_data; /* kstat type-specific data */
uint_t ks_ndata; /* # of type-specific data records */
size_t ks_data_size; /* total size of kstat data section */
hrtime_t ks_snaptime; /* time of last data shapshot */
/*
* Fields relevant to kernel only
*/
int (*ks_update)(struct kstat *, int); /* dynamic update */
void *ks_private; /* arbitrary provider-private data */
int (*ks_snapshot)(struct kstat *, void *, int);
void *ks_lock; /* protects this kstat's data */
} kstat_t;
typedef struct kstat_named_s {
char name[KSTAT_STRLEN]; /* name of counter */
uchar_t data_type; /* data type */
union {
char c[16]; /* enough for 128-bit ints */
int32_t i32;
uint32_t ui32;
struct {
union {
char *ptr; /* NULL-term string */
char __pad[8]; /* 64-bit padding */
} addr;
uint32_t len; /* # bytes for strlen + '\0' */
} str;
/*
* The int64_t and uint64_t types are not valid for a maximally conformant
* 32-bit compilation environment (cc -Xc) using compilers prior to the
* introduction of C99 conforming compiler (reference ISO/IEC 9899:1990).
* In these cases, the visibility of i64 and ui64 is only permitted for
* 64-bit compilation environments or 32-bit non-maximally conformant
* C89 or C90 ANSI C compilation environments (cc -Xt and cc -Xa). In the
* C99 ANSI C compilation environment, the long long type is supported.
* The _INT64_TYPE is defined by the implementation (see sys/int_types.h).
*/
int64_t i64;
uint64_t ui64;
long l;
ulong_t ul;
/* These structure members are obsolete */
longlong_t ll;
u_longlong_t ull;
float f;
double d;
} value; /* value of counter */
} kstat_named_t;
static __inline__ kstat_t *
kstat_create(const char *ks_module, int ks_instance, const char *ks_name,
const char *ks_class, uchar_t ks_type, uint_t ks_ndata,
uchar_t ks_flags)
{
return NULL;
}
static __inline__ void
kstat_install(kstat_t *ksp)
{
return;
}
static __inline__ void
kstat_delete(kstat_t *ksp)
{
return;
}
#ifdef __cplusplus
}
#endif
#endif /* _SPL_KSTAT_H */
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