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kstat2_nv_meta(3kstat2)
Kernel Statistics Library Functions, Version 2 kstat2_map_meta(3KSTAT2)
NAME
kstat2_map_meta, kstat2_nv_meta - retrieve kstat2 metadata
SYNOPSIS
cc [ flag... ] file... -lkstat2 [ library...]
#include <kstat2.h>
kstat2_status_t kstat2_map_meta(kstat2_map_t map,
kstat2_map_meta_t *meta);
const char* kstat2_map_metatype_string(uint16_t type);
kstat2_status_t kstat2_nv_meta(kstat2_map_t map, const char *name,
kstat2_nv_meta_t *meta);
const char* kstat2_nv_metatype_string(uint16_t type);
DESCRIPTION
The kstat2_map_meta() function retrieves the metadata for a given
kstat2 map and returns it in the meta parameter. The returned reference
is managed by the library and must not be passed to free(). For more
information about the description of the returned structure, see
kstat2(3KSTAT2).
The kstat2_nv_meta() function retrieves the metadata for a given kstat2
name/value in a map and returns it in the meta parameter. The returned
reference is managed by the library and must not be passed to free().
For more information about the description of the returned structure,
see kstat2(3KSTAT2).
The kstat2_map_metatype_string() function returns a string describing
the type of map for the supplied map metadata type. For more informa‐
tion on the list of available map metadata types, see kstat2(3KSTAT2).
The kstat2_nv_metatype_string() function returns a string describing
the type of name/value for the supplied metadata type. For more infor‐
mation on the list of available name/value metadata types, see
kstat2(3KSTAT2).
RETURN VALUES
Upon successful completion, the kstat2_map_meta() and kstat2_nv_meta()
functions will return KSTAT2_S_OK with the meta parameter set to the
relevant metadata. If no metadata exists for the map or nv,
KSTAT2_S_NOT_FOUND will be returned with the meta parameter set to
NULL. If there is any other error performing the requested operation,
an error code will be returned and the meta parameter will be NULL.
The kstat2_map_metatype_string() and kstat2_nv_metatype_string() func‐
tions will return a descriptive string for the supplied metadata type.
ERRORS
The above functions will fail if:
KSTAT2_S_INVAL_ARG the map, name, or meta parameters are invalid
KSTAT2_S_NO_MEM memory could not be allocated for the data
KSTAT2_S_SYS_FAIL an underlying syscall failed, see errno
KSTAT2_S_NOT_FOUND no metadata was found for the map or nv
FILES
/dev/kstat kernel statistics driver
/usr/include/kstat2.h header
EXAMPLES
See the kstat2(3KSTAT2) manpage.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
TRIBUTE VALUE _ Interface StabilityCommitted _ MT-LevelMT-Safe with
exceptions
SEE ALSO
kstat2_close(3KSTAT2), kstat2_close(3KSTAT2), kstat2_map_get(3KSTAT2),
kstat2_map_get_userdata(3KSTAT2), kstat2_map_parent(3KSTAT2),
kstat2_map_put_integer(3KSTAT2), kstat2_map_put_integers(3KSTAT2),
kstat2_map_put_string(3KSTAT2), kstat2_map_put_strings(3KSTAT2),
kstat2_map_remove(3KSTAT2), kstat2_map_set_data_cb(3KSTAT2),
kstat2_map_set_destroy_cb(3KSTAT2), kstat2_map_set_tree_cb(3KSTAT2),
kstat2_map_set_userdata(3KSTAT2), kstat2_map_size(3KSTAT2),
kstat2_map_to_array(3KSTAT2), kstat2_map_uri(3KSTAT2),
kstat2_mapiter_end(3KSTAT2), kstat2_mapiter_hasnext(3KSTAT2),
kstat2_mapiter_next(3KSTAT2), kstat2_mapiter_remove(3KSTAT2),
kstat2_mapiter_start(3KSTAT2), kstat2_mapref_alloc(3KSTAT2),
kstat2_mapref_deref(3KSTAT2), kstat2_mapref_free(3KSTAT2),
kstat2_open(3KSTAT2), kstat2_status_string(3KSTAT2),
kstat2_update(3KSTAT2), kstat2_uri_decode(3KSTAT2),
kstat2_uri_encode(3KSTAT2), libkstat2(3LIB)
NOTES
The kstat2 functions are MT-Safe with the exception that only one
thread may actively use a kstat2_handle_t, or any object obtained
through it, at any one time. Synchronization is required if multiple
threads intend to share a kstat2_handle_t or any object obtained
through it. Synchronization is left to the application.
Oracle Solaris 11.4 09 Dec 2015 kstat2_map_meta(3KSTAT2)