Unblock `ActiveSession`

[emhane]

Describe the feature

Extend pattern for unblocking futures/streams used in TransactionsManager (among others) to ActiveSession.

https://github.com/paradigmxyz/reth/pull/6590#issuecomment-1976570628

Additional context

No response

[int88]

@emhane Have you started working on this? If not, I'd like to fix it :)

[emhane]

hey @int88 ! I did already start this, it's a very complex task that requires modelling the flow of all nested streams in the ActiveSession future - I've done that first part, and started with implementation

[int88]

Yes, I found it too. It seems that the existing process cannot be simply applied :)

[emhane]

ordering of the nested streams, and setting the budget for each nested stream, that's the complex part. it's also fun though :)

[mattsse]

this type already has preemption budget for incoming messages

https://github.com/paradigmxyz/reth/blob/d2010d5d25a2fb98699c00418070304348107699/crates/net/network/src/session/active.rs#L571-L579