LGRP_VIEW(3LGRP) Locality Group Library Functions LGRP_VIEW(3LGRP)

NAME

lgrp_view - get view of lgroup hierarchy

SYNOPSIS

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

lgrp_view_t lgrp_view(lgrp_cookie_t cookie);

DESCRIPTION

The lgrp_view() function takes a cookie representing the snapshot of
the lgroup hierarchy obtained from lgrp_init(3LGRP) and returns the
snapshot's view of the lgroup hierarchy.


If the given view is LGRP_VIEW_CALLER, the snapshot contains only the
resources that are available to the caller (such as those with
respect to processor sets). When the view is LGRP_VIEW_OS, the
snapshot contains what is available to the operating system.

RETURN VALUES

Upon successful completion, lgrp_view() returns the view for the
snapshot of the lgroup hierarchy represented by the given cookie.
Otherwise, -1 is returned and errno is set to indicate the error.

ERRORS

The lgrp_view() function will fail if:

EINVAL
The cookie is not valid.

ATTRIBUTES

See attributes(7) for descriptions of the following attributes:


+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Interface Stability | Evolving |
+--------------------+-----------------+
|MT-Level | MT-Safe |
+--------------------+-----------------+

SEE ALSO

lgrp_cookie_stale(3LGRP), lgrp_fini(3LGRP), lgrp_init(3LGRP),
liblgrp(3LIB), attributes(7)

April 9, 2016 LGRP_VIEW(3LGRP)