https://bleepingswift.com/blog Learn Swift and SwiftUI with concise tutorials and examples. en-us undefined (Mick MacCallum) undefined (Mick MacCallum) Tue, 07 Apr 2026 00:00:00 GMT https://bleepingswift.com/blog/osallocated-unfair-lock-swift https://bleepingswift.com/blog/osallocated-unfair-lock-swift OSAllocatedUnfairLock wraps os_unfair_lock with a closure-based API that makes it impossible to forget to unlock and keeps the lock's storage alive for as long as you need it. Tue, 07 Apr 2026 00:00:00 GMT undefined (Mick MacCallum) SwiftConcurrencyLocks