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Re: Is readdir ever deterministic?

by ncw (Friar)
on Sep 17, 2001 at 23:22 UTC ( #112934=note: print w/replies, xml ) Need Help??


in reply to Is readdir ever deterministic?

Does there exist a platform where readdir returns . and .. in other than the first two return values?

Hmm, good question! If any filing system would do this it would be reiserfs under linux. Reiserfs uses a hashed directory structure rather than the linear directory structure as used by most other fs. Reiser returns directory entries in hash order (a familiar concept to perl programmers!).

I just tried it and the answer is reiserfs always puts "." and ".." first! The hash order isn't as random as a perl hash either which is interesting too.

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[Corion]: I hope all is well marto! ;) My godson had a surprise visit to the hospital yesterday because he fell and had cut his skin besides his eye, but everything was glued together again and all is well
[marto]: good grief, that's not fun, glad to hear all is as well as could be :)
[Corion]: marto: Yeah - their mother picked all three of them up at the kindergarden to then go to the hospital, and all three of them were well behaved, and all also were quite obedient when they came home, so they recognized the situation

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