LongTaskTimeout.swift

import Foundation

func longRunningTask() async throws {
    // Simulate a long-running task
    print("Long-running task started")
    try await Task.sleep(nanoseconds: UInt64(60 * Double(NSEC_PER_SEC)))
    print("Long-running task completed")
}

func timerTask() async throws {
    print("Timer task started")
    // Set a 30-second timer
    try await Task.sleep(nanoseconds: UInt64(10 * Double(NSEC_PER_SEC)))
    print("Timer reached end")
}



struct TimeoutError: Error {}

func testCancellation() async {
    do {
        try await withThrowingTaskGroup(of: Void.self) { group -> Void in
            group.addTask {
                try await longRunningTask()
                print("Long-running task is cancelled: \(Task.isCancelled)")
            }

            group.addTask {
                try await timerTask()
                throw TimeoutError()
            }

            try await group.next()
        }
    } catch {
        print("Error thrown: \(error.localizedDescription)")
    }
}

await testCancellation()
print("here")