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Copyright (c) 2003, Sun Microsystems, Inc. All Rights Reserved.
The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License.
You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing. See the License for the specific language governing permissions and limitations under the License.
When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
Copyright (c) 2003, Sun Microsystems, Inc. All Rights Reserved.
The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License.
You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing. See the License for the specific language governing permissions and limitations under the License.
When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
lgrp_nlgrps 3LGRP "16 Apr 2003" "SunOS 5.11" "Locality Group Library Functions"
NAME
lgrp_nlgrps - get number of lgroups
SYNOPSIS
cc [ flag .\|.\|. ] file.\|.\|. -llgrp [ library .\|.\|. ] #include <sys/lgrp_user.h> int lgrp_nlgrps(lgrp_cookie_t cookie);
DESCRIPTION
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.
RETURN VALUES
Upon successful completion, lgrp_nlgrps() returns the number of lgroups in the system. Otherwise, it returns -1 and sets errno to indicate the error.
ERRORS
The lgrp_nlgrps() function will fail if:
EINVAL
The cookie is not valid.
ATTRIBUTES
See attributes(5) 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(5)