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), pmLookupName 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)