Re: drawing in a separate thread
Re: drawing in a separate thread
- Subject: Re: drawing in a separate thread
- From: Jean-Daniel Dupas <email@hidden>
- Date: Fri, 2 May 2008 18:04:02 +0200
Le 2 mai 08 à 17:27, Jens Alfke a écrit :
On 2 May '08, at 4:20 AM, Jean-Daniel Dupas wrote:
You can have a look at DistributedObject. I think you can publish a
drawer object in your drawing thread and then, just call draw fro
your main thread.
DO might be overkill for this scenario. The background thread really
just needs to run a while() loop that waits on a condition-lock,
then draws. The main thread's -drawRect: method just sets the
condition on the lock to trigger the background thread.
You're right for the.
If more information needs to be passed to the thread, you can use a
producer/consumer queue, but unfortunately Foundation doesn't come
with one of those built-in; there must be source code for one lying
around, though.
—Jens
You're too. The Cocoa Threading Programmming Guide shows a way to
implements producer/consumer using NSConditonalLock.
(http://developer.apple.com/documentation/Cocoa/Conceptual/Multithreading/ThreadSafety/chapter_5_section_7.html
)
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