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pmiaddinstance(3)

NAME

   pmiAddInstance  -  add  an element to an instance domain in a LOGIMPORT
   context

C SYNOPSIS

   #include <pcp/pmapi.h>
   #include <pcp/impl.h>
   #include <pcp/import.h>

   int pmiAddInstance(pmInDom indom, const char *instance, int inst);

   cc ... -lpcp_import -lpcp

Perl SYNOPSIS

   use PCP::LogImport;

   pmiAddInstance($indom, $instance, $inst);

DESCRIPTION

   As part of the Performance Co-Pilot Log Import API (see  LOGIMPORT(3)),
   pmiAddInstance  adds a new element to the instance domain identified by
   indom.

   indom would normally be constructed using the pmInDom_build macro, e.g.
   pmInDom_build(PMI_DOMAIN,0)  for  the  first  instance  domain  in  the
   Performance Metrics Domain PMI_DOMAIN (which is  the  default  for  all
   meta data created by the LOGIMPORT library).

   The  new  instance  must  have  both an external name (instance) and an
   internal instance identifier (inst) that is unique across all instances
   in  the  indom instance domain.  There is a special ``uniqueness rule''
   for instance that is  imposed  by  pmLookupInDom(3),  namely  that  the
   external  instance  name  must  be  unique  in  the  leading  non-space
   characters, e.g.  the  instance  names  ``foo''  and  ``foo  bar''  are
   considered  the  same by this rule and not allowed in the same instance
   domain, but ``foo'' and ``foobar'' would be allowed.

   Once defined, the external instance  name  can  be  used  in  calls  to
   pmiGetHandle(3) and/or pmiPutValue(3) with the name of a metric defined
   over the same instance domain.

DIAGNOSTICS

   pmiAddInstance returns zero on success else a negative value  that  can
   be turned into an error message by calling pmiErrStr(3).

SEE ALSO

   LOGIMPORT(3),     pmiAddMetric(3),    pmiErrStr(3),    pmiGetHandle(3),
   pmiPutValue(3) and pmLookupInDom(3).



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