Re: CGImageSourceCreateFromURL failed with error -11
Re: CGImageSourceCreateFromURL failed with error -11
- Subject: Re: CGImageSourceCreateFromURL failed with error -11
- From: "James Trankelson" <email@hidden>
- Date: Fri, 8 Aug 2008 18:29:32 -0400
Indeed, for me, this is related to file descriptors. While it's still
unclear to me exactly where the problem lies, some quick fiddling with
opening the files as NSData and creating images from those appears to
be bearing fruit. Thanks!
-j
On Fri, Aug 8, 2008 at 5:51 PM, Jean-Daniel Dupas
<email@hidden> wrote:
>
> Le 8 août 08 à 20:56, Ken Ferry a écrit :
>
>> Hi James, Nicholas,
>>
>> I still bet it's someone holding too many file descriptors open.
>>
>> Nicholas, when you said this, "but I have forced the thumbnail
>> creation to have at most 10 files opened at the same time", what did
>> you mean? You can see what files your process has open using the
>> lsof command line tool. Use that to check what files you have open.
>>
>> lsof -p <pid>
>>
>> If you find that the problem is files staying open longer than you
>> want, you may be able to work around the issue by bringing the data
>> into the process with a method like +[NSData dataWithContentsOfURL:]
>> (I don't see a CF equivalent, but I may be going blind)
>
> It's just hidden in the Core Foundation References:
>
> CFURLCreateDataAndPropertiesFromResource() from Core Foundation URL Access
> Utilities Reference
>
> http://developer.apple.com/documentation/CoreFoundation/Reference/CFURLAccessUtils/Reference/reference.html
>
>
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