введение в библиотеки Performance Co-Pilot (PCP) (introduction to the Performance Co-Pilot (PCP) libraries)
PMCD-PMDA ERRORS
These error codes are used in the interactions between pmcd(1)
and the PMDAs that provide the performance data.
PM_ERR_PMDANOTREADY
PMDA is not yet ready to respond to requests
Some PMDAs have long initialization or reset times, and
will respond to pmcd(1) with this error if they are busy
at the moment. This error translates to PM_ERR_AGAIN for
the PCP client who made the request to pmcd which caused
the initial request to the PMDA. At some later time the
PMDA will inform pmcd (see PM_ERR_PMDAREADY) that it is
now ready to process requests, and client requests will
begin to succeed.
PM_ERR_PMDAREADY
PMDA is now responsive to requests
Used by PMDAs to asynchronously inform pmcd(1) that they
are now willing to resume processing requests. See also
PM_ERR_PMDANOTREADY.
