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Allow rewinds for Kadena chains #1

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Allow rewinds for Kadena chains #1

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16 changes: 6 additions & 10 deletions eth/catalyst/api.go
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Original file line number Diff line number Diff line change
Expand Up @@ -377,20 +377,16 @@ func (api *ConsensusAPI) forkchoiceUpdated(update engine.ForkchoiceStateV1, payl
PayloadID: id,
}
}
if rawdb.ReadCanonicalHash(api.eth.ChainDb(), block.NumberU64()) != update.HeadBlockHash {
if api.eth.BlockChain().CurrentBlock().Hash() == update.HeadBlockHash {
// If the specified head matches with our local head, do nothing and keep
// generating the payload. It's a special corner case that a few slots are
// missing and we are requested to generate the payload in slot.
}
else {
// Block is not canonical, set head.
if latestValid, err := api.eth.BlockChain().SetCanonical(block); err != nil {
return engine.ForkChoiceResponse{PayloadStatus: engine.PayloadStatusV1{Status: engine.INVALID, LatestValidHash: &latestValid}}, err
}
} else if api.eth.BlockChain().CurrentBlock().Hash() == update.HeadBlockHash {
// If the specified head matches with our local head, do nothing and keep
// generating the payload. It's a special corner case that a few slots are
// missing and we are requested to generate the payload in slot.
} else {
// If the head block is already in our canonical chain, the beacon client is
// probably resyncing. Ignore the update.
log.Info("Ignoring beacon update to old head", "number", block.NumberU64(), "hash", update.HeadBlockHash, "age", common.PrettyAge(time.Unix(int64(block.Time()), 0)), "have", api.eth.BlockChain().CurrentBlock().Number)
return valid(nil), nil
}
api.eth.SetSynced()

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