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man pages section 3: Extended Library Functions, Volume 2

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Updated: Thursday, June 13, 2019
 
 

lgrp_parents(3LGRP)

Name

lgrp_parents - get parents of given lgroup

Synopsis

cc [ flag … ] file–llgrp [ library … ] 
#include <sys/lgrp_user.h>

int lgrp_parents(lgrp_cookie_t cookie, lgrp_id_t child,
     lgrp_id_t *lgrp_array, uint_t lgrp_array_size);

Description

The lgrp_parents() function takes a cookie representing a snapshot of the lgroup hierarchy obtained from lgrp_init(3LGRP) and returns the number of parent lgroups of the specified lgroup. If lgrp_array is non-null and the lgrp_array_size is non-zero, the array is filled with as many of the parent lgroup IDs as will fit given the size of the array. For the root lgroup, the number of parents returned is 0 and the lgrp_array argument is not filled in.

Return Values

Upon successful completion, lgrp_parents() returns the number of parent lgroup IDs. Otherwise, −1 is returned and errno is set to indicate the error.

Errors

The lgrp_parents() function will fail if:

EINVAL

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

ESRCH

The specified lgroup ID was not found.

Attributes

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

ATTRIBUTE TYPE
ATTRIBUTE VALUE
Interface Stability
Committed
MT-Level
MT-Safe

See Also

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