Path: utzoo!attcan!uunet!husc6!cmcl2!phri!dasys1!alexis From: alexis@dasys1.UUCP (Alexis Rosen) Newsgroups: comp.sys.mac Subject: Re: Why can't the Finder show folder sizes? (summary & rejoinder) Message-ID: <5152@dasys1.UUCP> Date: 24 Jun 88 10:17:24 GMT Lines: 27 tim@ism780c.isc.com (T.W."Tim" Smith, Knowledgian) writes: >matthews@tcgould.tn.cornell.edu (Dave Matthews) writes: >< *Why* doesn't the Finder maintain a data structure with all the information >< about folder sizes? Naively, it seems like all that would be needed is a >How is the Finder supposed to know what files I have modified? Actually, it *DOES* already. I'm not sure how, since I haven't taken the Finder apart, but my best guess is that the Finder patches certain FS traps. You can see this in action if you use MultiFinder. If you put a folder's window where you can see it while an Application is in the foreground, and then you create a new file in that folder with that app, it will show up immediately in the folder! Obviously the Finder is Juggler-aware :-) This is also true of any change in a file's size. The finder knows about it right away, whether or not you close and re-open the folder. Despite all of the above, keeping all the file sizes in memory is a rotten idea. It's just one more thing to eat up RAM, just one more thing to slow the finder down. If you really want to know, ask it with the "Get Info" command. /Alexis -- Alexis Rosen {allegra,philabs,cmcl2}!phri\ Writing from {bellcore,harpo,cmcl2}!cucard!dasys1!alexis The Big Electric Cat {portal,well,sun}!hoptoad/ Public UNIX if mail fails: ...cmcl2!cucard!cunixc!abr1