преобразовать PMID в набор имен метрик производительности (translate a PMID to a set of performance metric names)
Дубль
(статьи:
pmnameall - преобразовать PMID в набор имен метрик производительности )
Имя (Name)
pmNameAll - translate a PMID to a set of performance metric names
Синопсис C (C Synopsis)
#include <pcp/pmapi.h>
int pmNameAll(pmID pmid, char ***nameset);
cc ... -lpcp
Описание (Description)
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.
Диагностика (Diagnostic)
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.
Смотри также (See also)
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).
