LGRP_CHILDREN(3LGRP) Locality Group Library Functions LGRP_CHILDREN(3LGRP)

lgrp_children - get children of given lgroup

cc [ flag ... ] file... -llgrp [ library ... ]
#include <sys/lgrp_user.h>
int lgrp_children(lgrp_cookie_t cookie, lgrp_id_t parent,

lgrp_id_t *lgrp_array, uint_t lgrp_array_size);

The lgrp_children() function takes a cookie representing a snapshot of the lgroup hierarchy retrieved from lgrp_init(3LGRP) and returns the number of lgroups that are children of the specified lgroup. If the lgrp_array and lgrp_array_size arguments are non-null, the array is filled with as many of the children lgroup IDs as will fit, given the size of the array.

− returns the number of child lgroup IDs. Otherwise, it returns −1 and sets errno to indicate the error.

The lgrp_children() function will fail if:


The specified lgroup ID is not valid or the cookie is invalid.


The specified lgroup ID was not found.

See attributes(7) for descriptions of the following attributes:

Interface Stability Evolving
MT-Level MT-Safe

lgrp_init(3LGRP), lgrp_nlgrps(3LGRP), lgrp_parents(3LGRP), liblgrp(3LIB), attributes(7)

April 16, 2003 OmniOS