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PMDANAME

PMDANAME

Section: C Library Functions (3) Updated: SGI
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NAME

pmdaName - translate a PMID to a set of dynamic performance metric names  

C SYNOPSIS

#include <pcp/pmapi.h>
#include <pcp/impl.h>
#include <pcp/pmda.h>

int pmdaName(pmID pmid, char ***nameset, pmdaExt *pmda)

cc ... -lpcp_pmda -lpcp  

DESCRIPTION

As part of the Performance Metrics Domain Agent (PMDA) API (see PMDA(3)), pmdaName is the generic callback for translating a pmid into one or more dynamic metric names (nameset).

Because implementing dynamic performance metrics requires specific PMDA support, and the facility is an optional component of a PMDA (most PMDAs do not support dynamic performance metrics), pmdaName is a skeleton implementation that returns PM_ERR_NAME.

A PMDA that supports dynamic performance metrics will provide a private callback that replaces pmdaName (by assignment to version.four.name of the pmdaInterface structure) and implements the translation from a pmid to a set of dynamic performance metric names returned via nameset. The behaviour, return values and memory allocation rules for nameset are the same as for pmNameAll(3).  

DIAGNOSTICS

pmdaName returns PM_ERR_PMID if the name is not recognized or cannot be translated. otherwise the number of metric names found (most commonly 1).  

CAVEAT

The PMDA must be using PMDA_PROTOCOL_4 or later, as specified in the call to pmdaDSO(3) or pmdaDaemon(3).  

SEE ALSO

PMAPI(3), PMDA(3), pmdaDaemon(3), pmdaDSO(3), pmdaMain(3), pmNameAll(3) and pmNameID(3).


 

Index

NAME
C SYNOPSIS
DESCRIPTION
DIAGNOSTICS
CAVEAT
SEE ALSO

This document was created by man2html, using the manual pages.
Time: 21:52:36 GMT, April 16, 2011