in reply to Handling asynchronous events with Perl

It's not clear to me from your description where the need for asynchronicity comes in?

It sounds like all you need a script that runs in a loop, monitor a directory looking for a file to appear, and then process that file before going back to monitoring for ~ 6 hrs - processing time.

Unless there are more that one AUV, or the processing could take more than 6 hours, there seems no need for anything complicated here?

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