[mechanical] Rename BaseRole into FailureDetector #3200
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This was referenced Apr 28, 2025
Leveraging the fact the Version::INVALID is 0 to pack the metadata versions better in memory. Version needs 4 bytes (u32) while Option<Version> needs 8. `PeerMetadataVersion` now needs 16 bytes instead of 32, same for `Header`. The other change is to let `MetadataVersions` keep track of the actual observed version of the peer as this might come handy for introspection later. This doesn't impact performance as we still only notify if the version is higher than our latest local view. ``` // intentionally empty ```
This also removes the need for TonicServiceFilter for core networking. With the new service design, individual services will respond with SvcNotReady if they received requests before they're started. Moreover, this introduces a check when accepting connections to ensure we return ServiceUnavailable if we received connections before acquiring our node id. This is a transitional step until we can allow core networking to accept connections before the node id is acquired. ``` // intentionally empty ```
Upcycling `BaseRole` to serve as the home of the WIP failure detector. This PR does not change any behaviour. ``` // intentionally empty ```
muhamadazmy
approved these changes
Apr 30, 2025
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Upcycling
BaseRoleto serve as the home of the WIP failure detector. This PR does not change any behaviour.Stack created with Sapling. Best reviewed with ReviewStack.