'\" te
.\" Copyright (c) 2004, 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.
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.TH NVLIST_REMOVE 3NVPAIR "Feb 2, 2004"
.SH NAME
nvlist_remove, nvlist_remove_all \- remove name-value pairs
.SH SYNOPSIS
.LP
.nf
\fBcc\fR [ \fIflag\fR... ] \fIfile\fR... \fB-lnvpair\fR [ \fIlibrary\fR... ]
#include <libnvpair.h>

\fBint\fR \fBnvlist_remove\fR(\fBnvlist_t *\fR\fInvl\fR, \fBconst char *\fR\fIname\fR,
     \fBdata_type_t\fR \fItype\fR);
.fi

.LP
.nf
\fBint\fR \fBnvlist_remove_all\fR(\fBnvlist_t *\fR\fInvl\fR, \fBconst char *\fR\fIname\fR);
.fi

.SH PARAMETERS
.sp
.ne 2
.na
\fB\fInvl\fR\fR
.ad
.RS 8n
The \fBnvlist_t\fR to be processed.
.RE

.sp
.ne 2
.na
\fB\fIname\fR\fR
.ad
.RS 8n
Name of the name-value pair to be removed.
.RE

.sp
.ne 2
.na
\fB\fItype\fR\fR
.ad
.RS 8n
Data type of the \fBnvpair\fR to be removed.
.RE

.SH DESCRIPTION
.sp
.LP
The \fBnvlist_remove()\fR function removes the first occurrence of \fBnvpair\fR
that matches the name and the type.
.sp
.LP
The \fBnvlist_remove_all()\fR function removes all occurrences of \fBnvpair\fR
that match the name, regardless of type.
.sp
.LP
Multiple threads can simultaneously read the same \fBnvlist_t\fR but only one
thread can actively change a given \fBnvlist_t\fR at a time. The caller is
responsible for the synchronization.
.SH RETURN VALUES
.sp
.LP
These functions return 0 on success and an error value on failure.
.SH ERRORS
.sp
.LP
These functions will fail if:
.sp
.ne 2
.na
\fB\fBEINVAL\fR\fR
.ad
.RS 10n
There is an invalid argument.
.RE

.sp
.ne 2
.na
\fB\fBENOENT\fR\fR
.ad
.RS 10n
No name-value pairs were found to match the criteria specified by \fIname\fR
and \fItype\fR.
.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 libnvpair (3LIB),
.BR attributes (7)