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).