Open Radar

 
Summary:

As Cocoa Developers we are encouraged where possible to use the Objective C APIs instead of lower level technologies.  I recently began a sweep through my code to replace some GCD code with NSOperation/NSOperationQueue.

dispatch_async calls to the main queue are easily replaceable with [NSOperationQueue mainQueue] but where dispatch_async is talking to one of the global dispatch queues it seems to be impossible to create a drop in replacement.

I have to create an NSOperationQueue instance somewhere even if it only exists to queue a single block.

Since NSOperationQueues are wrapping GCD queues I had assumed I'd be able to do either:

[NSOperationQueue globalBackgroundQueueWithPriority:NSOperationQueuePriorityDefault];

or 

[NSOperationQueue operationQueueWIthUnderlyingDispatchQueue:dispatch_get_global_queue( DISPATCH_QUEUE_PROPRITY_DEFAULT, 0)];

to give me a Cocoa wrapper around the global queues.

These APIs don't seem to exist, but something like them would be lovely to have.