In addition to using POE or threads, I would ask what is your "long-term-vision" for the monitoring program? Wouldn't you ultimately want a GUI to watch these things. The reason I say this, is that Tk, Gtk2, or Wx have "built-in event loops" to make this job easy, plus you can have a GUI to display "when and where" an AUV has surfaced, assign mouse menus to the icons you use, so you can adjust things like resurfacing times. Depending on how the files come in, you can setup individual "fileevents" to watch for changes to the filehandles which each AUV prints to, or you could just monitor a single file, and regex the input to detect which AUV it comes from.

You could setup HoH (a hash of hashes) to track the AUV's, and with a menuing system, you could save changes to each AUV configuration, to be sent when a surface-event is detected.

The only drawback to using a GUI, is that you need to run it on a machine running an X server, or Windows.

I'm not really a human, but I play one on earth. flash japh

In reply to Re: Handling asynchronous events with Perl by zentara
in thread Handling asynchronous events with Perl by njcodewarrior

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