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NAME | C SYNOPSIS | Perl SYNOPSIS | DESCRIPTION | DIAGNOSTICS | SEE ALSO | COLOPHON |
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PMIADDINSTANCE(3) Library Functions Manual PMIADDINSTANCE(3)
pmiAddInstance - add an element to an instance domain in a
LOGIMPORT context
#include <pcp/pmapi.h>
#include <pcp/import.h>
int pmiAddInstance(pmInDom indom, const char *instance, int inst);
cc ... -lpcp_import -lpcp
use PCP::LogImport;
pmiAddInstance($indom, $instance, $inst);
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 in‐
stances 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.
pmiAddInstance returns zero on success else a negative value that
can be turned into an error message by calling pmiErrStr(3).
LOGIMPORT(3), pmiAddMetric(3), pmiErrStr(3), pmiGetHandle(3),
pmiPutValue(3), pmiPutText(3), pmiPutLabel(3) and
pmLookupInDom(3).
This page is part of the PCP (Performance Co-Pilot) project. In‐
formation 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
2025-08-11. (At that time, the date of the most recent commit
that was found in the repository was 2025-08-11.) 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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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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