pmdapmid(3) — Linux manual page


PMDAPMID(3)             Library Functions Manual             PMDAPMID(3)

NAME         top

       pmdaPMID - translate a dynamic performance metric name into a

C SYNOPSIS         top

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

       int pmdaPMID(char *name, pmID *pmid, pmdaExt *pmda);

       cc ... -lpcp_pmda -lpcp

DESCRIPTION         top

       As part of the Performance Metrics Domain Agent (PMDA) API (see
       PMDA(3)), pmdaPMID is the generic callback for translating a
       dynamic metric name into a PMID (pmid).

       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), pmdaPMID is a skeleton implementation that returns

       A PMDA that supports dynamic performance metrics will provide a
       private callback that replaces pmdaPMID (by assignment to
       version.four.pmid of the pmdaInterface structure) and implements
       the translation from a dynamic performance metric name into the
       associated pmid.

CAVEAT         top

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

DIAGNOSTICS         top

       pmdaPMID returns PM_ERR_NAME if the name is not recognized or
       cannot be translated, else returns 0.

SEE ALSO         top

       PMAPI(3), PMDA(3), pmdaDaemon(3), pmdaDSO(3), pmdaMain(3) and

COLOPHON         top

       This page is part of the PCP (Performance Co-Pilot) project.
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Performance Co-Pilot               PCP                       PMDAPMID(3)

Pages that refer to this page: pmdamain(3)