Millist voogu kasutab async/await, kutsudes seda sisse meetodis, mis käivitatakse Task abil?
sobes.tech AI
Vastus AI-lt
When using async/await inside a method launched with Task on iOS (for example, using Swift Concurrency), the execution of asynchronous code occurs within a context managed by the Task Scheduler.
The async/await itself does not bind the code to a specific thread. Instead, during waiting (await), the current thread can be released for other tasks, and the continuation of the method after await can be executed on any available thread from the thread pool or on the same thread if possible.
Therefore, the thread on which the code after await executes is not guaranteed and depends on the scheduler. This allows efficient resource utilization and prevents blocking the main thread (e.g., the UI thread).
Example:
Task {
print("Start on thread: \(Thread.current)")
await someAsyncFunction()
print("Continue on thread: \(Thread.current)")
}
The output may show different threads before and after await.