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| author | Jeffrey Wilcke <jeffrey@ethereum.org> | 2015-10-22 02:44:22 +0800 |
|---|---|---|
| committer | Jeffrey Wilcke <jeffrey@ethereum.org> | 2015-10-22 02:44:22 +0800 |
| commit | 0467a6ceec4973b00c344d2a724f7fb01a6b0aee (patch) | |
| tree | 66e010270bdf25fa0058c89fb31f6df8cf7f7829 /trie/trie.go | |
| parent | dba15d9c3609bcddfc7a4f0fe8f01c48a8bbfbc8 (diff) | |
| parent | 5b0ee8ec304663898073b7a4c659e1def23716df (diff) | |
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Merge pull request #1889 from karalabe/fast-sync-rebase
eth/63 fast synchronization algorithm
Diffstat (limited to 'trie/trie.go')
| -rw-r--r-- | trie/trie.go | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/trie/trie.go b/trie/trie.go index aa8d39fe2..a3a383fb5 100644 --- a/trie/trie.go +++ b/trie/trie.go @@ -24,6 +24,7 @@ import ( "hash" "github.com/ethereum/go-ethereum/common" + "github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/crypto/sha3" "github.com/ethereum/go-ethereum/logger" "github.com/ethereum/go-ethereum/logger/glog" @@ -35,8 +36,12 @@ const defaultCacheCapacity = 800 var ( // The global cache stores decoded trie nodes by hash as they get loaded. globalCache = newARC(defaultCacheCapacity) + // This is the known root hash of an empty trie. emptyRoot = common.HexToHash("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421") + + // This is the known hash of an empty state trie entry. + emptyState = crypto.Sha3Hash(nil) ) var ErrMissingRoot = errors.New("missing root node") |