I peeked at Data::UUID. I see static variables within functions and I haven't yet spotted any evidence that they're doing any locking to make sure only one thread at a time is calling the functions in question => Big Multithreading Fail (which is fine if one doesn't have to play in that world, but I do, so...)

At this point the question then becomes how you build something like Data::UUID that works in the multithreaded realm. As far as I can tell Data::UUID is relying entirely on clock gymnastics, in which case it's no wonder if they punted on multithreadedness.

Also while universality is nice, I think I'd prefer to not have the IDs longer than they need to be. Something that'd be unique across a single server farm over some fixed interval of time like 100 days is good enough for my purposes. Granted, I'm also not sure how much effort I want to expend on optimizing that particular piece of the puzzle...

In reply to Re^2: How do I get a unique Perl Interpreter ID? by wrog
in thread How do I get a unique Perl Interpreter ID? by wrog

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