pmiputmark(3)

NAME

   pmiPutMark - write a <mark> record to a PCP archive

C SYNOPSIS

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

   int pmiPutMark(void);

   cc ... -lpcp_import -lpcp

Perl SYNOPSIS

   use PCP::LogImport;

   pmiPutMark();

DESCRIPTION

   As  part of the Performance Co-Pilot Log Import API (see LOGIMPORT(3)),
   pmiPutMark writes a <mark> record to the current  PCP  output  archive.
   This  is  required  when  there is a temporal discontinuity between the
   current input source and the next input source, if any, and  should  be
   called  after  the final call to pmiWrite(3) for the current input.  If
   there is no next input to be  processed  or  no  temporal  gap  between
   sources, then the <mark> record is not required.

   The  <mark>  record  is  used  to  signify a temporal gap, so that when
   replaying the output PCP archive, interpolation of metric values should
   not be performed between the last timestamp in the current input source
   to the first timestamp in the next input source, i.e. across the <mark>
   record.

DIAGNOSTICS

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

SEE ALSO

   LOGIMPORT(3),   pmiAddInstance(3),    pmiAddMetric(3),    pmiErrStr(3),
   pmiPutResult(3), pmiPutValue(3), pmiPutValueHandle(3) and pmiWrite(3).

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