POSIX doesn't provide such a hook, so most unix-like systems also don't have such a hook
Actually, Linux provides such a hook. Check out SGI::FAM for using the file alteration monitor based on dnotify or Linux::Inotify2 for newer kernels.

In reply to Re^2: How to do a blocking readdir or similar by saintmike
in thread How to do a blocking readdir or similar by bigcreeklinn

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