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Re: Number of Files on Volume
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Re: Number of Files on Volume


  • Subject: Re: Number of Files on Volume
  • From: Joe Turner <email@hidden>
  • Date: Wed, 26 Nov 2008 08:06:26 -0600

Thanks you!

I remembered that there was a NSFileSystemNodes and NSFileSystemFreeNodes in the filesystem attribute dictionary of the Cocoa FileManager, so, I did what you told me and subtracted free nodes from total nodes :)


On Nov 26, 2008, at 5:53 AM, Graham Lee wrote:

On 26/11/2008 08:28, "Andrew Farmer" <email@hidden> wrote:

On 25 Nov 08, at 16:44, Joe Turner wrote:
I have ben trying to find a good way to get an accurate count of
files on a Volume. Using a NSDirectoryEnumerator takes way too long
(a couples minutes), so, I figured out how to do it on the old
Carbon FileManager using [FSGetVolumeInfo...]

Is there a better way of doing it? Maybe with Cocoa tools?

If you want a non-Carbon way of doing this, take a look at statfs64().
It's not technically Cocoa, but it's not Carbon and it works just fine.


An equivalent to your code would simply be:

self.count = [NSNumber numberWithUnsignedLongLong:fsbuf.f_files];

In fact, f_files (when it works) reports the total number of nodes on the
filesystem, so you need to subtract f_ffree to find the number of nodes
which are occupied. Also, you need to test that neither of these numbers is
-1, as some filesystems don't support telling you that stuff.


Cheers,
Graham.
--
Graham Lee
Senior Macintosh Software Engineer, Sophos Plc.
+44 1235 540266
http://www.sophos.com/


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 >Re: Number of Files on Volume (From: Graham Lee <email@hidden>)

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