Re: Beachball on Lengthy Task
Re: Beachball on Lengthy Task
- Subject: Re: Beachball on Lengthy Task
- From: Michael Ash <email@hidden>
- Date: Sun, 5 Apr 2009 11:17:01 -0400
On Sun, Apr 5, 2009 at 9:33 AM, Kirk Kerekes <email@hidden> wrote:
> Along with threads and various asynchronous techniques already mentioned,
> you should also consider creating a separate UI-less "foundation tool" to
> perform your lengthy task, controlled with NSTask in your main app. This
> yields all of the benefits of a thread, with none of the threading pitfalls.
> Getting real-time feedback (for a progress indicator, for example) from the
> task is more complex than with a thread, and getting result data back is
> slightly more involved, but the absolute freedom from threading issues is
> often worth it.
>
> Several of Apple's utility apps are constructed as a UI shell that invokes
> one or more tools.
I recommend avoiding this if possible. Processes are a somewhat scarce
resource on OS X (only 266 per user by default, looks like) and you
don't want to be using up more than you have to. It's unfortunate
because it can make things easier as you say.
Mike
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