NAME

       pmNameID - translate a PMID to a performance metric name

C SYNOPSIS

       #include <pcp/pmapi.h>

       int pmNameID(pmID pmid, char **name);

       cc ... -lpcp

DESCRIPTION

       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.

DIAGNOSTICS

       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.

SEE ALSO

       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).