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

NAME

lgrp_children - get children of given lgroup

SYNOPSIS

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);

DESCRIPTION

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.

RETURN VALUES

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

ERRORS

The lgrp_children() function will fail if:

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


ESRCH
The specified lgroup ID was not found.

ATTRIBUTES

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


+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Interface Stability | Evolving |
+--------------------+-----------------+
|MT-Level | MT-Safe |
+--------------------+-----------------+

SEE ALSO

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

April 16, 2003 LGRP_CHILDREN(3LGRP)