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Approval Distribution Subsystem (#1951)

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* skeleton flow control

* tweaks & rename to approvals distribution

* Update roadmap/implementers-guide/src/node/approval/approval-distribution.md

Co-authored-by: Peter Goodspeed-Niklaus <coriolinus@users.noreply.github.com>

* Update roadmap/implementers-guide/src/node/approval/approval-distribution.md

Co-authored-by: Peter Goodspeed-Niklaus <coriolinus@users.noreply.github.com>

* add a `NewBlocks` message and dispatch

* new data format for approval distribution

* guide: update view to include finalized block number

* approvals: document view updating

* pruning when peers disconnect

* add remaining message types

* fix link

* network message type

* handle incoming assignments

* import_and_circulate_approval

* handle new blocks

* address review comments

* address review comments and use nifty VRFProof

Co-authored-by: Peter Goodspeed-Niklaus <coriolinus@users.noreply.github.com>
This commit is contained in:
Robert Habermeier
2020-11-24 23:40:07 -05:00
committed by GitHub
parent 5603e0f166
commit 51f6cb1979
9 changed files with 298 additions and 44 deletions
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polkadot/roadmap/implementers-guide/src/node/utility/network-bridge.md
+6
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@@ -61,6 +61,12 @@ The `activated` and `deactivated` lists determine the evolution of our local vie
If we are connected to the same peer on both peer-sets, we will send the peer two view updates as a result.
### Overseer Signal: BlockFinalized
We obtain the number of the block hash in the event by issuing a `ChainApiMessage::BlockNumber` request and then issue a `ProtocolMessage::ViewUpdate` to each connected peer on each peer-set. We also issue a `NetworkBridgeEvent::OurViewChange` to each event handler for each protocol.
If we are connected to the same peer on both peer-sets, we will send the peer two view updates as a result.
### Network Event: Peer Connected
Issue a `NetworkBridgeEvent::PeerConnected` for each [Event Handler](#event-handlers) of the peer-set and negotiated protocol version of the peer.