cc [ flag … ] file… –llgrp [ library … ] #include <sys/lgrp_user.h> lgrp_id_t lgrp_root(lgrp_cookie_t cookie);
The lgrp_root() function returns the root lgroup ID.
Upon successful completion, lgrp_root() returns the lgroup ID of the root lgroup. Otherwise, it returns −1 and sets errno to indicate the error.
The lgrp_root() function will fail if:
The cookie is NULL.
See attributes(5) for descriptions of the following attributes:
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lgrp_children(3LGRP), lgrp_init(3LGRP), lgrp_nlgrps(3LGRP), lgrp_parents(3LGRP), liblgrp(3LIB), attributes (5)