man/man3kstat/kstat_lookup.3kstat

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 KSTAT_LOOKUP 3KSTAT "Aug 3, 2004"
 NAME
kstat_lookup, kstat_data_lookup - find a kstat by name
 SYNOPSIS

cc [ flag.\|.\|. ] file.\|.\|. -lkstat [ library.\|.\|.]
#include <kstat.h>

kstat_t *kstat_lookup(kstat_ctl_t *kc, char *ks_module, int ks_instance,
 char *ks_name);


void *kstat_data_lookup(kstat_t *ksp, char *name);


 DESCRIPTION

The kstat_lookup() function traverses the kstat chain,
kc->kc_chain, searching for a kstat with the same ks_module,
ks_instance, and ks_name fields; this triplet uniquely identifies a
kstat. If ks_module is NULL, ks_instance is -1, or
ks_name is NULL, those fields will be ignored in the search. For
example, kstat_lookup(kc, NULL, -1, "foo") will find the first kstat
with name "foo".

The kstat_data_lookup() function searches the kstat's data section for
the record with the specified name. This operation is valid only for
those kstat types that have named data records: KSTAT_TYPE_NAMED and
KSTAT_TYPE_TIMER.
 RETURN VALUES

The kstat_lookup() function returns a pointer to the requested kstat if
it is found. Otherwise it returns NULL and sets errno to indicate
the error.

The kstat_data_lookup() function returns a pointer to the requested data
record if it is found. Otherwise it returns NULL and sets errno to
indicate the error .
 ERRORS

The kstat_lookup() and kstat_data_lookup() functions will fail if:
EINVAL

An attempt was made to look up data for a kstat that was not of type
KSTAT_TYPE_NAMED or KSTAT_TYPE_TIMER.


ENOENT

The requested kstat could not be found.


 FILES
/dev/kstat

kernel statistics driver


 ATTRIBUTES

See attributes(5) for descriptions of the following attributes:


ATTRIBUTE TYPE ATTRIBUTE VALUE
Interface Stability Stable
MT-Level Unsafe


 SEE ALSO

kstat(3KSTAT), kstat_chain_update(3KSTAT),
kstat_open(3KSTAT), kstat_read(3KSTAT), attributes(5)