cc [ flag... ] file... -llgrp [ library... ] #include <sys/lgrp_user.h>
int lgrp_cpus(lgrp_cookie_t cookie, lgrp_id_t lgrp, processorid_t *cpuids, uint_t count, int content);
The lgrp_cpus() function takes a cookie representing a snapshot of the lgroup hierarchy obtained from lgrp_init(3LGRP) and returns the number of CPUs in the lgroup specified by lgrp. If both the cpuids[] argument is non-null and the count is non-zero, lgrp_cpus() stores up to the specified count of CPU IDs into the cpuids[] array.
The content argument should be set to one of the following values to specify whether the direct contents or everything in this lgroup should be returned:
LGRP_CONTENT_ALL /* everything in this lgroup */
LGRP_CONTENT_DIRECT /* directly contained in lgroup */
LGRP_CONTENT_HIERARCHY /* everything within this hierarchy (for */
/* compatibility only, use LGRP_CONTENT_ALL) */
The LGRP_CONTENT_HIERARCHY value can still be used, but is being replaced by LGRP_CONTENT_ALL.
Upon successful completion, the number of CPUs in the given lgroup is returned. Otherwise, -1 is returned and errno is set to indicate the error.
The lgrp_cpus() function will fail if:
EINVAL The specified cookie, lgroup ID, or one of the flags is not valid.
ESRCH The specified lgroup ID was not found.
See attributes(5) for descriptions of the following attributes:
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
| Interface Stability | Evolving |
| MT-Level | MT-Safe |
lgrp_init(3LGRP), lgrp_mem_size(3LGRP), lgrp_resources(3LGRP), liblgrp(3LIB), attributes(5)