Mis juhtub, kasutades sync meetodit globaalses DispatchQueue järjekorras Swiftis?

The sync method on the global DispatchQueue in Swift executes the passed code block synchronously on that queue. This means the current thread will wait for the block to finish before continuing.

If you call DispatchQueue.global().sync { ... }, then:

• The current thread is blocked until the block completes.
• The block executes on the global queue (background thread).

It is important to remember that calling sync on the same queue where code is already executing can lead to a deadlock.

Example:

DispatchQueue.global().sync {
    print("Executing on the global queue")
}
print("This code will run after the block")