PMDANAME(3) Library Functions Manual PMDANAME(3)
pmdaName - translate a PMID to a set of dynamic performance metric names
#include <pcp/pmapi.h> #include <pcp/pmda.h> int pmdaName(pmID pmid, char ***nameset, pmdaExt *pmda); cc ... -lpcp_pmda -lpcp
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).
The PMDA must be using PMDA_PROTOCOL_4 or later, as specified in the call to pmdaDSO(3) or pmdaDaemon(3).
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).
PMAPI(3), PMDA(3), pmdaDaemon(3), pmdaDSO(3), pmdaMain(3), pmNameAll(3) and pmNameID(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 email@example.com. This page was obtained from the project's upstream Git repository ⟨https://github.com/performancecopilot/pcp.git⟩ on 2021-08-27. (At that time, the date of the most recent commit that was found in the repository was 2021-08-27.) 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 firstname.lastname@example.org Performance Co-Pilot PCP PMDANAME(3)
Pages that refer to this page: pmdamain(3)