What is structured concurrency

Asked on 09/01/2024

2 searches

Structured concurrency in Swift is a programming model that helps manage concurrent tasks in a more organized and predictable manner. It is designed to simplify the process of writing concurrent code by providing clear and structured ways to define and manage tasks, ensuring that they are executed in a safe and efficient manner.

In Swift, structured concurrency is achieved through features like async/await and actors. These features allow developers to write asynchronous code that is easy to read and maintain, while also providing mechanisms to avoid common concurrency issues such as data races.

The Swift concurrency model emphasizes data isolation and safety, using actors to protect mutable state and the Sendable protocol to ensure safe data sharing between concurrent tasks. With the introduction of Swift 6, data race safety is enforced by default, turning potential runtime issues into compile-time errors, which significantly improves the reliability and security of concurrent applications.

For more details on structured concurrency, you can refer to the session A Swift Tour: Explore Swift’s features and design (18:33).