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pmdelprofile(3)

NAME

   pmDelProfile  -  delete  instance(s)  from  the  current PMAPI instance
   profile

C SYNOPSIS

   #include <pcp/pmapi.h>

   int pmDelProfile(pmInDom indom, int numinst, int *instlist);

   cc ... -lpcp

DESCRIPTION

   The set of instances for performance metrics returned from a pmFetch(3)
   call may be filtered or restricted using an instance profile.  There is
   one instance profile for each context the application  creates  at  the
   Performance Metrics Application Programming Interface (PMAPI), and each
   instance profile may  include  instances  from  one  or  more  instance
   domains (see pmLookupDesc(3)).

   pmDelProfile  may  be  used  to delete instance specifications from the
   instance profile of the current PMAPI context.

   In the simplest variant,  the  list  of  instances  identified  by  the
   instlist  argument  for  the indom instance domain are removed from the
   instance profile.  The list of instance  identifiers  contains  numinst
   values.

   The   indom   value   would  normally  be  extracted  from  a  call  to
   pmLookupDesc(3) for a particular performance metric, and the  instances
   in  instlist would typically be determined by calls to pmGetInDom(3) or
   pmLookupInDom(3).

   If indom equals PM_INDOM_NULL or numinst is  zero,  then  all  instance
   domains  are  selected  for  deletion.   If  instlist is NULL, then all
   instances in the selected domain(s) are removed from the profile.

   To   disable   all   available   instances   in   all   domains,    use
   pmDelProfile(PM_INDOM_NULL,  0,  NULL).   This is the only situation in
   which indom may be PM_INDOM_NULL.

SEE ALSO

   pmAddProfile(3), PMAPI(3), pmFetch(3), pmGetInDom(3),  pmLookupDesc(3),
   pmLookupInDom(3),       pmNewContext(3),       pmUseContext(3)      and
   pmWhichContext(3).

DIAGNOSTICS

   PM_ERR_PROFILESPEC
          indom was PM_INDOM_NULL and instlist was not empty

CAVEAT

   It is possible to delete non-existent instance domains and non-existent
   instances  from an instance profile.  None of the routines that use the
   instance profile will ever issue an error if you do this.  The cost  of
   checking, when checking is possible, outweighs any benefits.



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