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core: ensure state exists for prefetcher (#20627)

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Martin Holst Swende 2020-02-14 09:54:02 +01:00 committed by GitHub
parent 38d1b0cba2
commit 855690523a
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1 changed files with 5 additions and 6 deletions
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11
core/blockchain.go
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@ -1654,18 +1654,17 @@ func (bc *BlockChain) insertChain(chain types.Blocks, verifySeals bool) (int, er
// If we have a followup block, run that against the current state to pre-cache // If we have a followup block, run that against the current state to pre-cache
// transactions and probabilistically some of the account/storage trie nodes. // transactions and probabilistically some of the account/storage trie nodes.
var followupInterrupt uint32 var followupInterrupt uint32
if !bc.cacheConfig.TrieCleanNoPrefetch { if !bc.cacheConfig.TrieCleanNoPrefetch {
if followup, err := it.peek(); followup != nil && err == nil { if followup, err := it.peek(); followup != nil && err == nil {
go func(start time.Time) { throwaway, _ := state.New(parent.Root, bc.stateCache)
throwaway, _ := state.New(parent.Root, bc.stateCache) go func(start time.Time, followup *types.Block, throwaway *state.StateDB, interrupt *uint32) {
bc.prefetcher.Prefetch(followup, throwaway, bc.vmConfig, &followupInterrupt) bc.prefetcher.Prefetch(followup, throwaway, bc.vmConfig, interrupt)
blockPrefetchExecuteTimer.Update(time.Since(start)) blockPrefetchExecuteTimer.Update(time.Since(start))
if atomic.LoadUint32(&followupInterrupt) == 1 { if atomic.LoadUint32(interrupt) == 1 {
blockPrefetchInterruptMeter.Mark(1) blockPrefetchInterruptMeter.Mark(1)
} }
}(time.Now()) }(time.Now(), followup, throwaway, &followupInterrupt)
} }
} }
// Process block using the parent state as reference point // Process block using the parent state as reference point