This pull request adds a data type ChainTip to the Cardano.Wallet.Read hierarchy.
This type ChainTip is used in the ChainSync protocol to advertise the tip of the server's chain. It combines the information of a ChainPoint with a BlockNo.
This pull requests also adds
Conversions to/from types in ouroboros-consensus for the networking layer
Comments
The NetworkLayer currently uses the BlockHeader type for advertising the tip of the chain. However, this is strictly speaking incorrect, as the BlockHeader also includes a reference to the previous block header, which ChainTip does not. In the legacy code, we currently invent a value out of thin air — the new type ChainTip is more correct.
Subsequent pull requests will change the NetworkLayer interface to use Read.ChainPoint and Read.ChainTip.
This pull request adds a data type
ChainTipto theCardano.Wallet.Readhierarchy.This type
ChainTipis used in the ChainSync protocol to advertise the tip of the server's chain. It combines the information of aChainPointwith aBlockNo.This pull requests also adds
ouroboros-consensusfor the networking layerComments
NetworkLayercurrently uses theBlockHeadertype for advertising the tip of the chain. However, this is strictly speaking incorrect, as theBlockHeaderalso includes a reference to the previous block header, whichChainTipdoes not. In the legacy code, we currently invent a value out of thin air — the new typeChainTipis more correct.NetworkLayerinterface to useRead.ChainPointandRead.ChainTip.Issue Number
ADP-3350