pmiaddinstance(3) — Linux manual page

PMIADDINSTANCE(3)       Library Functions Manual       PMIADDINSTANCE(3)

NAME

       pmiAddInstance - add an element to an instance domain in a
       LOGIMPORT context

C SYNOPSIS

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

       int pmiAddInstance(pmInDom indom, const char *instance, int
       inst);

       cc ... -lpcp_import -lpcp

Perl SYNOPSIS

       use PCP::LogImport;

       pmiAddInstance($indom, $instance, $inst);

DESCRIPTION

       As part of the Performance Co-Pilot Log Import API (see
       LOGIMPORT(3)), pmiAddInstance adds a new element to the instance
       domain identified by indom.

       indom would normally be constructed using the pmInDom_build
       macro, e.g. pmInDom_build(PMI_DOMAIN,0) for the first instance
       domain in the Performance Metrics Domain PMI_DOMAIN (which is the
       default for all meta data created by the LOGIMPORT library).

       The new instance must have both an external name (instance) and
       an internal instance identifier (inst) that is unique across all
       instances in the indom instance domain.  There is a special
       ``uniqueness rule'' for instance that is imposed by
       pmLookupInDom(3), namely that the external instance name must be
       unique in the leading non-space characters, e.g. the instance
       names ``foo'' and ``foo bar'' are considered the same by this
       rule and not allowed in the same instance domain, but ``foo'' and
       ``foobar'' would be allowed.

       Once defined, the external instance name can be used in calls to
       pmiGetHandle(3) and/or pmiPutValue(3) with the name of a metric
       defined over the same instance domain.

DIAGNOSTICS

       pmiAddInstance returns zero on success else a negative value that
       can be turned into an error message by calling pmiErrStr(3).

SEE ALSO

       LOGIMPORT(3), pmiAddMetric(3), pmiErrStr(3), pmiGetHandle(3),
       pmiPutValue(3), pmiPutText(3), pmiPutLabel(3) and
       pmLookupInDom(3).

COLOPHON

       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 2024-06-14.
       (At that time, the date of the most recent commit that was found
       in the repository was 2024-06-14.)  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                                   PMIADDINSTANCE(3)

Pages that refer to this page: logimport(3), pmigethandle(3), pmiputlabel(3), pmiputmark(3), pmiputresult(3), pmiputtext(3), pmiputvalue(3), pmistart(3), pmiunits(3), pmiwrite(3)

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