Empty Topics #14
Description
Currently when a topic becomes empty (all subscribers are unsubscribed), the topic is not removed from the topics map in the Broker struct.
Similarly, when a subscriber is detached from the broker it is:
- Marked as destroyed and channel is closed
- Unsubscribes from all topics, which goes back to my first case (empty topics aren't removed)
Why aren't empty topics being removed from the Broker?