I haven't used AnyEvent::DBI, as I'd use a thread instead of an external process

Then what would be the point of AnyEvent for the OPs problem?

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

In reply to Re^5: threads and their alternatives by BrowserUk
in thread Alternatives to threads for maintaining GUI app responsiveness by metaperl

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