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 email@example.com. This page was obtained from the project's upstream Git repository ⟨https://github.com/performancecopilot/pcp.git⟩ on 2020-12-18. (At that time, the date of the most recent commit that was found in the repository was 2020-12-18.) 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 PMNAMEID(3)
Pages that refer to this page: pmapi(3), pmdaname(3), pmgetchildren(3), pmgetchildrenstatus(3), pmgetderivedcontrol(3), pmlookupname(3), pmnameall(3)