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'\"macro stdmacro
.\"
.\" Copyright (c) 2000-2004 Silicon Graphics, Inc. All Rights Reserved.
.\"
.\" This program is free software; you can redistribute it and/or modify it
.\" under the terms of the GNU General Public License as published by the
.\" Free Software Foundation; either version 2 of the License, or (at your
.\" option) any later version.
.\"
.\" This program is distributed in the hope that it will be useful, but
.\" WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
.\" or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
.\" for more details.
.\"
.\"
.TH PMDADESC 3 "PCP" "Performance Co-Pilot"
.SH NAME
\f3pmdaDesc\f1 \- get the description of a metric from a PMDA
.SH "C SYNOPSIS"
.ft 3
#include <pcp/pmapi.h>
.br
#include <pcp/impl.h>
.br
#include <pcp/pmda.h>
.sp
int pmdaDesc(pmID \fIpmid\fP, pmDesc *\fIdesc\fP, pmdaExt *\fIpmda\fP);
.sp
cc ... \-lpcp_pmda \-lpcp
.ft 1
.SH DESCRIPTION
.B pmdaDesc
uses the standard
.BR PMDA (3)
data structures to return the
.B pmDesc
description in
.I desc
for the metric identified by
.IR pmid .
.SH DIAGNOSTICS
If the
.I pmid
does not correspond to any metric supported by this PMDA,
.B pmdaDesc
returns
.BR PM_ERR_PMID .
.SH CAVEAT
The PMDA must be using
.B PMDA_INTERFACE_2
or later, as specified in the call to
.BR pmdaDSO (3)
or
.BR pmdaDaemon (3).
.SH SEE ALSO
.BR PMAPI (3),
.BR PMDA (3),
.BR pmdaDaemon (3),
.BR pmdaDSO (3)
and
.BR pmLookupDesc (3).
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