How can I visualize what happens with async/await in Swift concurrency?
Generated on 12/2/2024
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To visualize what happens with async/await in Swift concurrency, you can think of it as a way to manage task suspension and execution. When a task is waiting for an asynchronous operation to complete, such as reading from a disk or messaging another service, it suspends and yields the CPU to other tasks that have work to do. This is modeled in Swift using the async and await syntax.
A function that may suspend is marked with the async keyword, and when calling an async function, the await keyword is used to indicate that a suspension can occur at that line. This allows the task to pause and resume once the asynchronous operation is complete, enabling efficient concurrency management.
For a practical demonstration, you can refer to the session A Swift Tour: Explore Swift’s features and design (19:10) where these concepts are applied in a server development environment using Swift's concurrency features.
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