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Make Follow Distance Lookup Simpler (#7884)

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* faster eth1 search

* simplify it much more

* Update beacon-chain/powchain/block_reader.go

Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
This commit is contained in:
Nishant Das
2020-11-22 06:03:16 +08:00
committed by GitHub
parent 519b003fc3
commit 7e76b02bb7
1 changed files with 0 additions and 16 deletions
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16
beacon-chain/powchain/service.go
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@@ -349,22 +349,6 @@ func (s *Service) followBlockHeight(ctx context.Context) (uint64, error) {
if s.latestEth1Data.BlockHeight > params.BeaconConfig().Eth1FollowDistance {
latestValidBlock = s.latestEth1Data.BlockHeight - params.BeaconConfig().Eth1FollowDistance
}
blockTime, err := s.BlockTimeByHeight(ctx, big.NewInt(int64(latestValidBlock)))
if err != nil {
return 0, err
}
followTime := func(t uint64) uint64 {
return t + params.BeaconConfig().Eth1FollowDistance*params.BeaconConfig().SecondsPerETH1Block
}
for followTime(blockTime) > s.latestEth1Data.BlockTime && latestValidBlock > 0 {
// reduce block height to get eth1 block which
// fulfills stated condition
latestValidBlock--
blockTime, err = s.BlockTimeByHeight(ctx, big.NewInt(int64(latestValidBlock)))
if err != nil {
return 0, err
}
}
return latestValidBlock, nil
}