If you're worried about cross-platform compatibility, then use NSOperationQueue and NSOperations. The fundamental idea is identical (dispatch_queue = NSOperationQueue, dispatch_block = NSOperation), and on the platforms that have it, they've been re-written to use Grand Central Dispatch.
The only major difference is that you'll probably be creating NSInvocationOperations, which have to invoke a method on a target object, instead of being given a Block. To answer your other questions: 1. You can suspend an NSOperationQueue using its "setSuspended:" method. 2. You can ask an NSOperationQueue for an array of its queued operations (the "operations" method) 3. Yes, it's NSOperationQueue. :) 4. NSOperationQueue sure does. Cheers, Dave On Apr 29, 2010, at 3:41 PM, Paul Franz wrote: > Do you know if it is available on the iPad? I think it is because > according the Mac Rumors website says so. This is a back end code for > a online board game and I am trying to port it over to the iPad. I > figured the back end is the best place to start (i.e. avoid UI at the > moment which will be a total re-write). > > Now if we assume that it is. The code goes from having a thread that > pulls the data of the queue and pushing over the Internet. To a > dispatch queue that calls a function that sends the data. > > Questions: > > 1) If the connection fails, can I suspend the processing of items on > the queue from within the block? > 2) Is there anyway to peek at the queue and find out how many > "tasks" are queued up? > 3) Is there a Cocoa wrapper for the dispatch code or will I need to > create my own? > 4) Do the dispatch queues work with Garbage Collection compiled code? > > Paul Franz
smime.p7s
Description: S/MIME cryptographic signature
_______________________________________________ Cocoa-dev mailing list ([email protected]) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [email protected]
