pmdaName (3) - Linux Manuals
pmdaName: translate a PMID to a set of dynamic performance metric names
NAMEpmdaName - translate a PMID to a set of dynamic performance metric names
C SYNOPSIS#include <pcp/pmapi.h>
int pmdaName(pmID pmid, char ***nameset, pmdaExt *pmda);
DESCRIPTIONAs 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).