Re: Is there a known bug in NSUrl?
Re: Is there a known bug in NSUrl?
- Subject: Re: Is there a known bug in NSUrl?
- From: Sherm Pendley <email@hidden>
- Date: Wed, 18 Feb 2009 03:22:00 -0500
On Wed, Feb 18, 2009 at 12:00 AM, Robert Nicholson <
email@hidden> wrote:
> So, I often see this same behavior in Safari, iTunes etc whereby when it's
> downloading something and you try to resume. It simply will not resume or
> will say timeout _until_ you remove the file and start again. In iTunes the
> progress bar simply will not show any more progress until the previous
> partially downloaded file is removed. I've seen this in Software Update as
> well where you'll have to go in it's cache to delete partially downloaded
> updates or it will never resume from where it's left off.
>
> The fact that I see these across so many apps tells me its possibly a
> framework issue.
>
> Anybody seen this behaviour on their machines?
I've seen it, but I wouldn't be so quick to assume it's a bug in NSURL -
resumed downloads requires a cooperative web server that understands and
responds appropriately to the HTTP Range: header. Also, with ADC downloads
for instance, your session key is part of the URL, so if your session times
out what you'll actually be requesting is a different URL, not a resumed
download of the same URL.
I'm not saying it *isn't* a bug - just that there are other possible
explanations, and I haven't seen any evidence to support one theory or
another.
sherm--
--
Cocoa programming in Perl: http://camelbones.sourceforge.net
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