1PMNAMEALL(3)               Library Functions Manual               PMNAMEALL(3)
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NAME

6       pmNameAll - translate a PMID to a set of performance metric names
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C SYNOPSIS

9       #include <pcp/pmapi.h>
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11       int pmNameAll(pmID pmid, char ***nameset);
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13       cc ... -lpcp
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DESCRIPTION

16       Given  a  Performance Metric Identifier (PMID) via pmid, pmNameAll will
17       determine all the corresponding metric names, if any,  in  the  Perfor‐
18       mance Metrics Name Space (PMNS), and return these via nameset.
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20       The  resulting  list  of  pointers nameset and the values (the relative
21       names)  that  the  pointers  reference  will  have  been  allocated  by
22       pmNameAll with a single call to malloc(3), and it is the responsibility
23       of the pmNameAll caller to use free(nameset) to release the space  when
24       it is no longer required.
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26       In  the  absence  of  errors,  pmNameAll returns the number of names in
27       nameset.
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29       For many examples of a PMNS, there will be a 1:1 mapping between a name
30       and  a  PMID,  and  under  these  circumstances, pmNameID(3) provides a
31       slightly simpler interface in the absence of duplicate names for a par‐
32       ticular PMID.
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SEE ALSO

35       PMAPI(3),   pmGetChildren(3),  pmGetChildrenStatus(3),  pmGetConfig(3),
36       pmLoadASCIINameSpace(3),      pmLoadNameSpace(3),      pmLookupName(3),
37       pmNameID(3), pmNewContext(3), pcp.conf(5), pcp.env(5) and PMNS(5).
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DIAGNOSTICS

40       PM_ERR_NOPMNS
41              Failed  to access a PMNS for operation.  Note that if the appli‐
42              cation hasn't a priori called pmLoadNameSpace(3)  and  wants  to
43              use  the distributed PMNS, then a call to pmNameAll must be made
44              after the creation of a context (see pmNewContext(3)).
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46       PM_ERR_PMID
47              pmid does not correspond to a defined PMID in the PMNS.
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49       PM_ERR_*
50              Other diagnostics are for protocol failures when  accessing  the
51              distributed PMNS.
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55Performance Co-Pilot                  PCP                         PMNAMEALL(3)
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