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core, eth/downloader: fix ancestor lookup for fast sync

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This commit is contained in:
Péter Szilágyi
2018-11-16 13:15:05 +02:00
parent 51b2f1620c
commit accc0fab4f
4 changed files with 71 additions and 16 deletions
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13
core/blockchain.go
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@ -561,6 +561,17 @@ func (bc *BlockChain) HasBlock(hash common.Hash, number uint64) bool {
return rawdb.HasBody(bc.db, hash, number)
}
// HasFastBlock checks if a fast block is fully present in the database or not.
func (bc *BlockChain) HasFastBlock(hash common.Hash, number uint64) bool {
if !bc.HasBlock(hash, number) {
return false
}
if bc.receiptsCache.Contains(hash) {
return true
}
return rawdb.HasReceipts(bc.db, hash, number)
}
// HasState checks if state trie is fully present in the database or not.
func (bc *BlockChain) HasState(hash common.Hash) bool {
_, err := bc.stateCache.OpenTrie(hash)
@ -618,12 +629,10 @@ func (bc *BlockChain) GetReceiptsByHash(hash common.Hash) types.Receipts {
if receipts, ok := bc.receiptsCache.Get(hash); ok {
return receipts.(types.Receipts)
}
number := rawdb.ReadHeaderNumber(bc.db, hash)
if number == nil {
return nil
}
receipts := rawdb.ReadReceipts(bc.db, hash, *number)
bc.receiptsCache.Add(hash, receipts)
return receipts