NAME

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

C SYNOPSIS

       #include <pcp/pmapi.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).