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Use latest block header + slot as skip slot cache key (#8443)

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terence tsao 2021-02-13 15:13:20 -08:00 committed by GitHub
parent 0716519be9
commit 28839fbab2
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1 changed files with 6 additions and 1 deletions
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7
beacon-chain/core/state/skip_slot_cache.go
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@ -2,6 +2,7 @@ package state
import ( import (
"context" "context"
"errors"
"github.com/prysmaticlabs/prysm/beacon-chain/cache" "github.com/prysmaticlabs/prysm/beacon-chain/cache"
beaconstate "github.com/prysmaticlabs/prysm/beacon-chain/state" beaconstate "github.com/prysmaticlabs/prysm/beacon-chain/state"
@ -19,7 +20,11 @@ var SkipSlotCache = cache.NewSkipSlotCache()
// state root is in the mix to defend against different forks with same skip slots // state root is in the mix to defend against different forks with same skip slots
// to hit the same cache. We don't want beacon states mixed up between different chains. // to hit the same cache. We don't want beacon states mixed up between different chains.
func cacheKey(ctx context.Context, state *beaconstate.BeaconState) ([32]byte, error) { func cacheKey(ctx context.Context, state *beaconstate.BeaconState) ([32]byte, error) {
r, err := state.HashTreeRoot(ctx) bh := state.LatestBlockHeader()
if bh == nil {
return [32]byte{}, errors.New("block head in state can't be nil")
}
r, err := bh.HashTreeRoot()
if err != nil { if err != nil {
return [32]byte{}, err return [32]byte{}, err
} }