удалить экземпляр (ы) из текущего профиля экземпляра PMAPI (delete instance(s) from the current PMAPI instance profile)
Имя (Name)
pmDelProfile - delete instance(s) from the current PMAPI instance
profile
Синопсис C (C Synopsis)
#include <pcp/pmapi.h>
int pmDelProfile(pmInDom indom, int numinst, int *instlist);
cc ... -lpcp
Описание (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 and 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.
Предостережение (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.
Диагностика (Diagnostic)
PM_ERR_PROFILESPEC
indom was PM_INDOM_NULL and instlist was not empty
Смотри также (See also)
pmAddProfile(3), PMAPI(3), pmFetch(3), pmGetInDom(3),
pmLookupDesc(3), pmLookupInDom(3), pmNewContext(3),
pmUseContext(3) and pmWhichContext(3).
