[swift-corelibs-dev] NSOperationQueue and friends

Philippe Hausler phausler at apple.com
Sat Mar 26 16:54:43 CDT 2016


Is that on Linux? Perhaps it is because it is missing run loop interaction?

Sent from my iPhone

On Mar 26, 2016, at 10:52 AM, Daniel Eggert <danieleggert at me.com> wrote:

>> 
>> On 25 Mar 2016, at 21:15, Philippe Hausler via swift-corelibs-dev <swift-corelibs-dev at swift.org> wrote:
>> 
>> I know a few of you have been waiting for this: I just pushed an initial implementation of NSOperationQueue, NSOperation and NSBlockOperation. It is worth noting that this implementaiton has a few behavioral differences between this implementation and the one implemented in objective-c. Part of this difference is due to features like QoS not being cross platform portable or KVO not yet implementable in Swift. This is very much a work-in-progress; it needs unit tests and and a bit more polish, but hopefully it is good enough to get some work started in some other places.
>> 
>> - Philippe Hausler
> 
> 
> Great to see progress on this.
> 
> It does fail this simple test case, though:
> 
> 
>    func test_BlockBasedAPI() {
>        let queue = NSOperationQueue()
> 
>        let expectation = expectationWithDescription("did run block")
>        queue.addOperationWithBlock {
>            expectation.fulfill()
>        }
> 
>        waitForExpectationsWithTimeout(0.001, handler: nil)
>    }
> 
> I'm not sure what's going on there. I was using this on my branch for NSURLSession since it has a delegate queue that I need to run callbacks on.
> 
> /Daniel
> 


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