LGRP_RESOURCES(3LGRP) Locality Group Library Functions

NAME

lgrp_resources - get lgroup resources of given lgroup

SYNOPSIS

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

int lgrp_resources(lgrp_cookie_t cookie, lgrp_id_t lgrp,
lgrp_id_t *lgrpids, uint_t count, lgrp_rsrc_t type);

DESCRIPTION

The lgrp_resources() function takes a cookie representing a
snapshot of the lgroup hierarchy obtained from lgrp_init(3LGRP) and
returns the number of resources in the lgroup specified by lgrp. The
resources are represented by a set of lgroups in which each lgroup
directly contains CPU and/or memory resources.


The type argument should be set to one of the following values to
specify whether the CPU or memory resources should be returned:

LGRP_RSRC_CPU /* CPU resources */
LGRP_RSRC_MEM /* Memory resources */


If the lgrpids[] argument is non-null and the count argument is non-
zero, lgrp_resources() stores up to the specified count of lgroup IDs
into the lgrpids[] array.

RETURN VALUES

Upon successful completion, lgrp_resources() returns the number
of lgroup resources. Otherwise, -1 is returned and errno is set to
indicate the error.

ERRORS

The lgrp_resources() function will fail if:

EINVAL
The specified cookie, lgroup ID, or type 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 | Evolving |
+--------------------+-----------------+
|MT-Level | MT-Safe |
+--------------------+-----------------+

SEE ALSO

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

January 26, 2005 LGRP_RESOURCES(3LGRP)