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NAME | C SYNOPSIS | DESCRIPTION | PCP ENVIRONMENT | SEE ALSO | DIAGNOSTICS | COLOPHON |
PMGETINDOM(3) Library Functions Manual PMGETINDOM(3)
pmGetInDom - get instance identifiers for a performance metrics
instance domain
#include <pcp/pmapi.h>
int pmGetInDom(pmInDom indom, int **instlist, char ***namelist);
cc ... -lpcp
In the current Performance Metrics Application Programming Interface
(PMAPI) context, locate the description of the instance domain indom,
and return via instlist the internal instance identifiers for all
instances, and via namelist the full external identifiers for all
instances. The number of instances found is returned as the function
value (else less than zero to indicate an error).
The value for the instance domain indom is typically extracted from a
pmDesc structure, following a call to pmLookupDesc(3) for a
particular performance metric.
The resulting lists of instance identifiers (instlist and namelist),
and the names that the elements of namelist point to, will have been
allocated by pmGetInDom with two calls to malloc(3), and it is the
responsibility of the caller to free(instlist) and free(namelist) to
release the space when it is no longer required.
When the result of pmGetInDom is less than one, both instlist and
namelist are undefined (no space will have been allocated, and so
calling free(3) is a singularly bad idea).
Environment variables with the prefix PCP_ are used to parameterize
the file and directory names used by PCP. On each installation, the
file /etc/pcp.conf contains the local values for these variables.
The $PCP_CONF variable may be used to specify an alternative
configuration file, as described in pcp.conf(5). Values for these
variables may be obtained programmatically using the pmGetConfig(3)
function.
PMAPI(3), pmGetConfig(3), pmGetInDomArchive(3), pmLookupDesc(3),
pmLookupInDom(3), pmNameInDom(3), pcp.conf(5) and pcp.env(5).
PM_ERR_INDOM
indom is not a valid instance domain identifier
This page is part of the PCP (Performance Co-Pilot) project.
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COLOPHON (which is not part of the original manual page), send a mail
to man-pages@man7.org
Performance Co-Pilot PCP PMGETINDOM(3)
Pages that refer to this page: pmdumplog(1), pmlogextract(1), pmlogger(1), pcpintro(3), pmaddprofile(3), pmapi(3), pmdacache(3), pmdainstance(3), pmdelprofile(3), pmfetch(3), pmgetindomarchive(3), pmlookupindom(3), pmnameindom(3), pmsetmode(3), QmcIndom(3)