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Re: getdirentriesattr usage in the FInder
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Re: getdirentriesattr usage in the FInder


  • Subject: Re: getdirentriesattr usage in the FInder
  • From: Timo Naroska <email@hidden>
  • Date: Wed, 7 May 2008 21:51:16 +0200

On 07.05.2008, at 09:41, Quinn wrote:

Does your volume support volfs?

We're currently not supporting volfs. We have a notion of file ids in our fs and could implement the vfs_get operation, but
the ids are not necessarily permanent.


So, I guess my best bet right now is to vote for a fix of the FSGetCatalogInfoBulk routine by filing another radar bug for it and
then look for other optimization possibilities in the short term.


Thanks,
 Timo


<http://developer.apple.com/qa/qa2001/qa1113.html>

If not, there's no way to Finder (actually, File Manager's FSGetCatalogInfoBulk routine) call getdirentriesattr. This is a known issue <rdar://problem/3640861> that may eventually get fixed, but certainly not in the 10.5.x timeframe.

I wouldn't go out of your way to implement volfs just to get around this problem. getdirentriesattr is an oddball vnop because it requires you to deal with packed attributes (unlike the getattr and setattr vnops, where the VFS layer does the packing and unpacking). In general, I recommend that folks not implement it.

S+E
--
Quinn "The Eskimo!" <http://www.apple.com/developer/ >
Apple Developer Relations, Developer Technical Support, Core OS/ Hardware
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References: 
 >getdirentriesattr usage in the FInder (From: Timo Naroska <email@hidden>)
 >Re: getdirentriesattr usage in the FInder (From: Quinn <email@hidden>)

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