My app, a find tool with a file browser, attempts to keep its browser
window updated even if the user renames or moves files via another app,
e.g. in the Finder.

With local volumes, that's fairly easy.

But how shall I do this on remote volumes?

Is it best I perform my own checking by re-fetching the file properties to
detect modifications, or do the advanced tracking methods of OS X also work
well on remote volumes?

E.g., does any of the network file systems, maybe SMB2, support file change
notifications, meaning polling is not necessary, and does OSX make use of
that?

Or would at least OSX notify me when the user on this Mac makes changes to
files on the network volume? (Meaning I could detect changes made by the
user without polling, while I'd still need to poll to detect changes made
from other computers?)

Any advice and insights are appreciated.

-- 
Thomas Tempelmann, http://www.tempel.org/
Follow me on Twitter: https://twitter.com/tempelorg
Read my programming blog: http://blog.tempel.org/
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