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NAME | C SYNOPSIS | DESCRIPTION | SEE ALSO | DIAGNOSTICS | COLOPHON |
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PMNAMEID(3) Library Functions Manual PMNAMEID(3)
pmNameID - translate a PMID to a performance metric name
#include <pcp/pmapi.h>
int pmNameID(pmID pmid, char **name);
cc ... -lpcp
Given a Performance Metric Identifier (PMID) via pmid, pmNameID will
determine the corresponding metric name, if any, in the Performance
Metrics Name Space (PMNS), and return this via name.
If the PMNS contains multiple names associated with the requested
PMID, one of these will be returned via name, but there is no way to
determine which of the duplicate names this will be. See
pmNameAll(3) if all of the corresponding names are required.
As of Version 3.10.3 of PCP, duplicate names for the same PMID are
allowed in the PMNS, so using pmNameAll(3) is recommended over
pmnameID.
name is a null-byte terminated string, allocated by pmNameID using
malloc(3) and it is the caller's responsibility to call free(3) to
release the storage when the value is no longer required.
In the absence of errors, pmNameID returns zero.
PMAPI(3), pmGetChildren(3), pmGetChildrenStatus(3), pmGetConfig(3),
pmLoadASCIINameSpace(3), pmLoadNameSpace(3), pmLookupName(3),
pmNameAll(3), pmNewContext(3), pcp.conf(5), pcp.env(5) and pmns(5).
PM_ERR_NOPMNS
Failed to access a PMNS for operation. Note that if the
application hasn't a priori called pmLoadNameSpace(3) and
wants to use the distributed PMNS, then a call to pmNameID
must be made after the creation of a context (see
pmNewContext(3)).
PM_ERR_PMID
pmid does not correspond to a defined PMID in the PMNS.
PM_ERR_*
Other diagnostics are for protocol failures when accessing the
distributed PMNS.
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
2018-02-02. (At that time, the date of the most recent commit that
was found in the repository was 2018-02-02.) 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 PMNAMEID(3)
Pages that refer to this page: pmapi(3), pmdaname(3), pmgetchildren(3), pmgetchildrenstatus(3), pmlookupname(3), pmnameall(3)
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