alsm / gnatt Goto Github PK

Multilevel wildcards are intended support zero or more levels, which means a TopicFilter of
foo/#
is supposed to receive messages published to TopicName
foo
The current implementation of the topic tree in the aggregating gateway makes implementing this quite messy, and it's not a feature I see much use for.

Right now, every AddSubscription and RemoveSubscription acquire a big nasty lock on the tree. I think this can be avoided by having locks at the node level instead. That way, you only need to W lock on the parent of the node you are removing or adding. All other operations would still be R locks.

I'm not sure if this is worth doing, and right now I just want to get something working.This issue is to remind me to take a closer look someday.