iOS Concurrency with GCD & Operations

Sep 12 2023 · Swift 5.8, macOS 13, iOS 16, Xcode 14.3

Part 2: Concurrency Problems & Solutions

11. Concurrency Problems

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Previous episode: 10. Use a DispatchSemaphore Next episode: 12. Explore Priority Inversion

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Concurrent tasks don’t run in the same order, for the same duration, every time, so concurrent programming can create problems that are hard to debug. In this video, you’ll learn what you can do to prevent them. The three potential problems are priority inversion, race conditions and deadlocks. Race conditions are also called data races. GCD and Operations help you avoid the first two, but you have to keep your wits about you to avoid deadlocks. I mention a few tips throughout this course.