[REBOL] Re: How to generate a UUID?
From: greggirwin:mindspring at: 18-Jan-2002 11:10
Hi Sunanda,
<< I think we have slightly different models in mind. >>
I think you're right. :)
<< You, I think, are looking for a "prefix" unique to a machine. I was
chipping
in an approach to a slightly different problem: to get a unique "prefix" for
an "application node" (to coin a phrase). That's a bit of an application
running in one machine; but it might migrate to another; and that machine
may
be running more than one application, each of which needs to generate its
own
UUIDs. >>
Right. I've used an approach somewhere between the two we're discussing, to
generate OIDs (Object IDs) for an object-centric DB design. To do that, I
used the GUID created by CoCreateGUID (under Windows) and re-defined one
segment to use as your PREFIX segment.
One use I've been thinking of, and why I think generic global uniqueness is
important (beyond application specific uniqueness requirements), is that of
messages and agents which may "travel".
I'll be doing some more research on this, and maybe even hack up a little
test. Maybe, together, we can come up with something that will work for both
of us.
--Gregg
