PMNAMEALL(3) Library Functions Manual PMNAMEALL(3)
pmNameAll - translate a PMID to a set of performance metric names
#include <pcp/pmapi.h> int pmNameAll(pmID pmid, char ***nameset); cc ... -lpcp
Given a Performance Metric Identifier (PMID) via pmid, pmNameAll will determine all the corresponding metric names, if any, in the Performance Metrics Name Space (PMNS), and return these via nameset. The resulting list of pointers nameset and the values (the relative names) that the pointers reference will have been allocated by pmNameAll with a single call to malloc(3), and it is the responsibility of the pmNameAll caller to use free(nameset) to release the space when it is no longer required. In the absence of errors, pmNameAll returns the number of names in nameset. For many examples of a PMNS, there will be a 1:1 mapping between a name and a PMID, and under these circumstances, pmNameID(3) provides a slightly simpler interface in the absence of duplicate names for a particular PMID.
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 pmNameAll 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.
PMAPI(3), pmGetChildren(3), pmGetChildrenStatus(3), pmGetConfig(3), pmLoadASCIINameSpace(3), pmLoadNameSpace(3), pmLookupName(3), pmNameID(3), pmNewContext(3), pcp.conf(5), pcp.env(5) and PMNS(5).
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 2021-08-27. (At that time, the date of the most recent commit that was found in the repository was 2021-08-27.) 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 PMNAMEALL(3)
Pages that refer to this page: pmdaname(3), pmgetderivedcontrol(3), pmnameid(3)