PMLOOKUPNAME(3) 					     Library Functions Manual						   PMLOOKUPNAME(3)

NAME

       pmLookupName - translate performance metric names into PMIDs

C SYNOPSIS

       #include <pcp/pmapi.h>

       int pmLookupName(int numpmid, char **namelist, pmID *pmidlist);

       cc ... -lpcp

DESCRIPTION

       Given  a list in namelist containing numpmid full pathnames for performance metrics from a Performance Metrics Name Space (PMNS), pmLookup-
       Name returns the list of associated Performance Metric Identifiers (PMIDs) via pmidlist.

       The result from pmLookupName will be the number of names translated in the absence of errors, else an error  code  less	than  zero.   When
       errors are encountered, the corresponding value in pmidlist will be PM_ID_NULL.

       Note that the error protocol guarantees there is a 1:1 relationship between the elements of namelist and pmidlist, hence both lists contain
       exactly numpmid elements.  For this reason, the caller is expected to have pre-allocated a suitably sized array for pmidlist.

SEE ALSO

       PMAPI(3), pmGetChildren(3), pmGetChildrenStatus(3),  pmGetConfig(3),  pmLoadNameSpace(3),  pmNameID(3),	pmNewContext(3),  pcp.conf(5)  and
       pcp.env(5).

DIAGNOSTICS

       PM_ERR_TOOSMALL
	      numpmid must be at least 1

       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 pmLookupName must be made after the creation of a context (see pmNewContext(3)).

       PM_ERR_NAME
	      One or more of the elements of namelist does not correspond to a valid metric name in the PMNS.

       PM_ERR_NONLEAF
	      A name referred to a node in the PMNS but it was not a leaf node.

       PM_ERR_*
	      Other diagnostics are for protocol failures when accessing the distributed PMNS.

Performance Co-Pilot							PCP							   PMLOOKUPNAME(3)