When I looked at DataBlockRepository in MappedEvent.cpp a few years back,
it wasn't clear to me what storing to disk accomplished, beyond what
simply using a container like std::map would have.  IIRC, it's used to
convey Text and Sysex messages that can't be conveyed by MappedEvent;
MappedEvent holds an integer index which indexes the text.  I don't see
what disk storage adds.  Maybe it's held over from the time when RG was
two separate parts.

At the time, it seemed to me that experimenting or changing it would be
much more trouble than it was worth, so I left it strictly alone.

I'm bringing that up now:

 * In case I'm wrong and there's a subtle purpose I don't know, older team
members can tell me.

 * Because if significant changes are made to DataBlockRepository, I want
everyone to be aware that there may be an easier way.

 * Because we may not have to choose between deleting 1000 /tmp files at
the start or at the end.

        Tom Breton (Tehom)




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