Re: [swift-evolution] Introducing synthesized locks

It's relatively unlikely that Swift's concurrency model, once it gains one, will look all that similar to Objective-C's. For example*, if Swift were to adopt a shared-nothing model where heap storage was per-thread and could only be accessed by another thread by copying or moving the value to

Re: [swift-evolution] Introducing synthesized locks

Synchronization would indeed be an area of improvement for Swift. I would, however, add that the primitive should also work with more than just functions. For example, it should play nicely with closures and should most definitely work with properties (to synchronize access for a given resource

Re: [swift-evolution] Introducing synthesized locks

I'd prefer to see block-scoped synchronization rather than whole-method-only; it gives much more flexibility. Note that you can use the objc synchronization feature with reference types: // Or (_ obj:...) if you prefer the label-less objc style) func synchronized(on obj: AnyObject, do block: ()

Re: [swift-evolution] Introducing synthesized locks

With a serial queue guarding the function or concurrent queues dumping into a serial target queue, DispatchQueue.sync(execute:) can be used as a synchronizing primitive suitable for most workflows. Have you tried exploring libDispatch outside of Semaphores? ~Robert Widmann > On Jun 12, 2017,

Re: [swift-evolution] Introducing synthesized locks

> On 12. Jun 2017, at 11:10, Erik Aigner via swift-evolution > wrote: > > In my day to day tasks, synchronization primitives are used quite often. ObjC > had the @synchronized attribute for methods. I didn’t find anything about > this in swift evolution, so I

[swift-evolution] Introducing synthesized locks

In my day to day tasks, synchronization primitives are used quite often. ObjC had the @synchronized attribute for methods. I didn’t find anything about this in swift evolution, so I thought i bring it up here. I think it would quite easily be possible to introduce a synchronized qualifier for