Experimental Physics and
Industrial Control System

Andrew Johnson via Core-talk <core-talk at aps.anl.gov> · Mon, 08 Mar 2021 23:35:42 -0000

Summing up our Zoom discussion: The ts post filter should be able to
allocate a new db_field_log and convert the timestamp from the
pLog->time field into a new value of whatever type/format was requested
by the filter args.

My preference would be that ts:{fmt="%Y-%m-%d %H:%M:%S.%09f"} would
return a DBF_STRING (although Michael isn't keen on accepting format
strings from the network for security reasons; we can discuss that),
while say ts:{epoch:1970} would return a double giving the number of
seconds since 1970-01-01 00:00:00 UTC (that being the Posix epoch, while
for 1990 it would use the EPICS epoch).

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https://bugs.launchpad.net/bugs/1182091

Title:
  Make TIME field directly accessible

Status in EPICS Base:
  Triaged

Bug description:
  Users often request the ability to access the TIME field directly.
  It could be provided as an array of 2 32-bit values, possibly with a specific string in ISO-8601 form say.

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Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System