DeviceIdentifierDelegate
A delegate that implements DeviceIdentifier and caches the result of the id() function.
This class ensures that the computationally expensive or slow id() call is only performed once. Subsequent calls will return the cached value instantly.
It uses a Mutex to guarantee thread-safe access to the cached ID, preventing race conditions in a concurrent environment.
Parameters
delegate
The actual DeviceIdentifier implementation to which the call is delegated on the first invocation.