POSIX doesn't provide such a hook, so most unix-like systems also don't have such a hook. Your solution of polling is probably the best portable solution.

However, if you're smart enough with AppleScript, you can attach an applescript action to a folder drop, which can then launch your Perl program. I'm not that smart, or I'd point you at a ready solution.

-- Randal L. Schwartz, Perl hacker
Be sure to read my standard disclaimer if this is a reply.

In reply to Re: How to do a blocking readdir or similar by merlyn
in thread How to do a blocking readdir or similar by bigcreeklinn

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