Re: About checksum error

[Ralph Lange via Tech-talk <tech-talk at aps.anl.gov>]

On input, StreamDevice parses and handles the incoming data in the order it is received. As the value arrives before the checksum, StreamDevice writes it to the record before the checksum comparison fails.

However, in case of a checksum error, StreamDevice sets the record to the appropriate error state (STAT/SEVR). That means the regular EPICS mechanisms (severity inheritance and IVOA/IVOV) can be used to deal with the situation inside the database and GUI tools can mark the value as invalid.

Cheers,
~Ralph