'\" te
.\" 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.
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.TH LGRP_CHILDREN 3LGRP "Apr 16, 2003"
.SH NAME
lgrp_children \- get children of given lgroup
.SH SYNOPSIS
.LP
.nf
cc [ \fIflag \&.\|.\|.\fR ] \fIfile\fR\&.\|.\|. \fB-llgrp\fR [ \fIlibrary \&.\|.\|.\fR ]
#include <sys/lgrp_user.h>

\fBint\fR \fBlgrp_children\fR(\fBlgrp_cookie_t\fR \fIcookie\fR, \fBlgrp_id_t\fR \fIparent\fR,
     \fBlgrp_id_t *\fR\fIlgrp_array\fR, \fBuint_t\fR \fIlgrp_array_size\fR);
.fi

.SH DESCRIPTION
.sp
.LP
The \fBlgrp_children()\fR function takes a \fIcookie\fR representing a snapshot
of the lgroup hierarchy retrieved from \fBlgrp_init\fR(3LGRP) and returns the
number of lgroups that are children of the specified lgroup. If the
\fIlgrp_array\fR and \fIlgrp_array_size\fR arguments are non-null, the array is
filled with as many of the children lgroup IDs as will fit, given the size of
the array.
.SH RETURN VALUES
.sp
.LP
\(mi returns the number of child lgroup IDs. Otherwise, it returns \(mi1 and
sets \fBerrno\fR to indicate the error.
.SH ERRORS
.sp
.LP
The \fBlgrp_children()\fR function will fail if:
.sp
.ne 2
.na
\fB\fBEINVAL\fR\fR
.ad
.RS 10n
The specified lgroup ID is not valid or the cookie is invalid.
.RE

.sp
.ne 2
.na
\fB\fBESRCH\fR\fR
.ad
.RS 10n
The specified lgroup ID was not found.
.RE

.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(7) for descriptions of the following attributes:
.sp

.sp
.TS
box;
c | c
l | l .
ATTRIBUTE TYPE	ATTRIBUTE VALUE
_
Interface Stability	Evolving
_
MT-Level	MT-Safe
.TE

.SH SEE ALSO
.sp
.LP
.BR lgrp_init (3LGRP),
.BR lgrp_nlgrps (3LGRP),
.BR lgrp_parents (3LGRP),
.BR liblgrp (3LIB),
.BR attributes (7)