code. compile. run. debug. share.
import Foundation
// Image creation simulation
func createImage(index: Int) async {
print("Creating image \(index)")
// Simulate I/O-bound image creation
let startTime = Date()
let waitTime = Double.random(in: 0.75...1.5)
while Date().timeIntervalSince(startTime) < waitTime {
// Busy-wait to simulate I/O-bound work
}
print("Finished creating image \(index)")
}
// Image processing simulation
func processImage(index: Int) async {
print("Processing image \(index)")
// Simulate CPU-bound image processing
let startTime = Date()
let waitTime = Double.random(in: 0.75...2.0)
while Date().timeIntervalSince(startTime) < waitTime {
// Busy-wait to simulate CPU-bound work
}
print("Finished processing image \(index)")
}
func processImages(totalCount: Int) async {
await withTaskGroup(of: Void.self) { group in
for i in 0..<totalCount {
group.addTask {
await createImage(index: i)
}
}
// Wait for all images to be created
await group.waitForAll()
for i in 0..<totalCount {
group.addTask {
await processImage(index: i)
}
}
}
print("All images processed")
}
// Entry point
print("Running Image Processing Example:")
// Create a semaphore to wait for the async task to complete
let completionSemaphore = DispatchSemaphore(value: 0)
Task {
await processImages(totalCount: 20)
completionSemaphore.signal()
}
// Wait for the async task to complete
completionSemaphore.wait()
print("Done")
Compiling Program...
Standard Input:
Interactive Console
Text
Program is not being debugged. Click "Debug" button to start program in debug mode.
| # | Function | File:Line |
|---|
| Variable | Value |
|---|
| Register | Value |
|---|
| Expression | Value |
|---|
| # | Description |
|---|