Re: Obtain directory size.

FROM : Julian
DATE : Fri May 20 19:22:11 2005

Yes, what I was looking for was total size in bytes of a folder + all 
contents. Using Daniels, fastFolderSizeAtFSRef now makes me realize 
just how slow NSDirectoryEnumerator really is. :-)

Thanks


On May 20, 2005, at 1:00 PM, Chris Parker wrote:

>
> On May 20, 2005, at 9:50 AM, Jim Correia wrote:
>
>

>> On May 20, 2005, at 12:09 PM, Julian wrote:
>>
>>
>>

>>> Since NSFileManager has no capabilities of returning the size of 
>>> a folder(a folder + contents), what would be a suitable & fast 
>>> method for obtaining this besides enumerating as it's slow as 
>>> christmas. I am looking for perhaps a carbon call to get this in 
>>> one swoop.
>>>
>>>

>>
>> For a directory, call FSGetCatalogInfo, and ask for the valence.
>>
>> Heed the warning about the cost of computing this for volume 
>> formats which don't natively store this information.
>>
>> <http://developer.apple.com/documentation/Carbon/Reference/

>> File_Manager/file_manager/chapter_1.5_section_29.html>
>>

>
> The valence is just the *number* of items contained in the 
> directory. I believe the original poster was asking for total size 
> in terms of bytes on disk contained in the folder.
>
> NSFileManager & NSDirectoryEnumerator use FSIterators (indirectly) 
> to do their work, but we don't (yet) allow only specific attributes 
> to be returned from the -directoryAttributes or -fileAttributes 
> calls. There's an enhancement request for that already, but I 
> believe if you want this information you're going to have to walk 
> the file structure somehow.
>
> .chris
>
> --
> Chris Parker
> Cocoa Frameworks
> Apple Computer, Inc.
>
>