[SENTINEL] Check sender balance only once per block

[d10r]

When multiple outgoing streams are open, don't query sender balance once for each of them.

[ngmachado]

This issue happens from the current queue system where each task is processed separately.

I'm hesitant to implement logic that stop estimations based on individual block numbers. This approach would introduce more complexity and we still end up making multiple checks to RPC.

Objective

Deduplicating tasks within the queues. For example, if an account/token is already queued for estimation, we shouldn't add another estimation for that same account/token."

Tasks

• [x] Add filtering to Estimation queue
• [x] Expose all Estimations waiting on queue
• [x] Create Unit test file for queues
• [x] Update Bootstrap to use filtering queues
• [x] Update Event processor to use filtering queues

Related:

https://github.com/superfluid-finance/superfluid-sentinel/issues/255