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beacon/light: add CommitteeChain (#27766)

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This change implements CommitteeChain which is a key component of the beacon light client. It is a passive data structure that can validate, hold and update a chain of beacon light sync committees and updates, starting from a checkpoint that proves the starting committee through a beacon block hash, header and corresponding state. Once synced to the current sync period, CommitteeChain can also validate signed beacon headers.
This commit is contained in:
Felföldi Zsolt
2023-12-08 13:38:00 +01:00
committed by GitHub
parent 1048e2d6a3
commit fff843cfaf
7 changed files with 1247 additions and 0 deletions
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core/rawdb/schema.go
+4
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@@ -132,6 +132,10 @@ var (
CliqueSnapshotPrefix = []byte("clique-")
BestUpdateKey = []byte("update-") // bigEndian64(syncPeriod) -> RLP(types.LightClientUpdate) (nextCommittee only referenced by root hash)
FixedCommitteeRootKey = []byte("fixedRoot-") // bigEndian64(syncPeriod) -> committee root hash
SyncCommitteeKey = []byte("committee-") // bigEndian64(syncPeriod) -> serialized committee
preimageCounter = metrics.NewRegisteredCounter("db/preimage/total", nil)
preimageHitCounter = metrics.NewRegisteredCounter("db/preimage/hits", nil)
)