Add method to clear the handler list

[rafael-biz]

Can you add a method on the Hub class to clear the handler list?

[upta]

Would be simple enough to add, though I'm curious about the use-case. In general I'd think you'd want individual consumers cleaning up after themselves using the Unsubscribe methods instead of having some other process pull it out from under them; feel like a way to introduce hard-to-track bugs.

If there's a compelling use-case, though, I'm not opposed

[rafael-biz]

Agreed. Consumers must unsubscribe themselves using the Unsubscribe methods.

I just thought that a cleaning method could be called as a last resource to prevent memory leaks. But I found out in the source code that the handler list keeps a weak reference and that should not be a problem. Also, the unit testing covers the garbage collector very well.

I also agree that it could introduce hard-to-track bugs. But it is fine if we just put it in the Hub class without an extension.