Re: Calculating file size

FROM : Jean-Daniel Dupas
DATE : Sun Apr 27 15:17:11 2008

Le 27 avr. 08 à 15:02, Laurent Cerveau a écrit :

>
> On Apr 27, 2008, at 6:33 AM, Jens Alfke wrote:
>

>>
>> On 26 Apr '08, at 6:50 PM, Cocoa Dev wrote:
>>

>>> I was wondering what was the best way to calucate folder size with 
>>> cocoa? I
>>> was able to do this but it does not include resource forks:

>>
>> I think you'll need to drop down to a lower-level API to get the 
>> resource fork size; probably one of the "*CatInfo*" calls in 
>> <Files.h>. I can't really give specific advice because I haven't 
>> used those much since OS 9, and they've changed a lot since.

>
> FSGetCatalogInfo with
>
> kFSCatInfoDataSizes          = 0x00004000, /* Data fork logical and 
> physical size */
> kFSCatInfoRsrcSizes          = 0x00008000, /* Resource fork logical 
> and physical size */
>
> HTH
>
> laurent


Works well for one file but is inefficient when you want to get size 
of many files.
FSOpenIterator and FSGetCatalogInfoBulk are the way to go.