lgrp_nlgrps - get number of lgroups
cc [ flag … ] file… –llgrp [ library … ] #include <sys/lgrp_user.h> int lgrp_nlgrps(lgrp_cookie_t cookie);
The lgrp_nlgrps() function takes a cookie representing a snapshot of the lgroup hierarchy obtained from lgrp_init(3LGRP). It returns the number of lgroups in the hierarchy where the number is always at least one.
Upon successful completion, lgrp_nlgrps() returns the number of lgroups in the system. Otherwise, it returns −1 and sets errno to indicate the error.
The lgrp_nlgrps() function will fail if:
The cookie is NULL.
See attributes(7) for descriptions of the following attributes:
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lgrp_children(3LGRP), lgrp_init(3LGRP), lgrp_parents(3LGRP), liblgrp(3LIB), attributes(7)