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NAME | C SYNOPSIS | DESCRIPTION | DIAGNOSTICS | CAVEAT | SEE ALSO | COLOPHON |
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PMDAPMID(3) Library Functions Manual PMDAPMID(3)
pmdaPMID - translate a dynamic performance metric name into a
PMID
#include <pcp/pmapi.h>
#include <pcp/pmda.h>
int pmdaPMID(char *name, pmID *pmid, pmdaExt *pmda);
cc ... -lpcp_pmda -lpcp
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
PM_ERR_NAME.
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.
pmdaPMID returns PM_ERR_NAME if the name is not recognized or
cannot be translated, else returns 0.
The PMDA must be using PMDA_PROTOCOL_4 or later, as specified in
the call to pmdaDSO(3) or pmdaDaemon(3).
PMAPI(3), PMDA(3), pmdaDaemon(3), pmdaDSO(3), pmdaMain(3) and
pmLookupName(3).
This page is part of the PCP (Performance Co-Pilot) project.
Information about the project can be found at
⟨http://www.pcp.io/⟩. If you have a bug report for this manual
page, send it to pcp@groups.io. This page was obtained from the
project's upstream Git repository
⟨https://github.com/performancecopilot/pcp.git⟩ on 2020-12-18.
(At that time, the date of the most recent commit that was found
in the repository was 2020-12-18.) If you discover any rendering
problems in this HTML version of the page, or you believe there
is a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
man-pages@man7.org
Performance Co-Pilot PCP PMDAPMID(3)
Pages that refer to this page: pmdamain(3)
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