xref: /illumos-gate/usr/src/man/man3lgrp/lgrp_resources.3lgrp (revision 6446bd46ed1b4e9f69da153665f82181ccaedad5)
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LGRP_RESOURCES 3LGRP "Jan 26, 2005"
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)