public bool GetStateProof(UInt256 root, StorageKey skey, out HashSet <byte[]> proof)
{
var trieReadOnlyDb = new TrieReadOnlyStore(Store, Prefixes.DATA_MPT);
var readOnlyTrie = new MPTReadOnlyTrie(root, trieReadOnlyDb);
return(readOnlyTrie.GetProof(skey.ToArray(), out proof));
}
private void PersistLocalStateRoot()
{
using (Snapshot snapshot = GetSnapshot())
{
var trieDb = new TrieReadOnlyStore(Store, Prefixes.DATA_MPT);
var currentRoot = trieDb.GetRoot();
var currentIndex = snapshot.Height;
var preHash = UInt256.Zero;
if (currentIndex > 0)
{
var last_state_root = currentSnapshot.StateRoots.TryGet(currentIndex - 1);
preHash = last_state_root.StateRoot.Hash;
}
var stateRootState = new StateRootState
{
Flag = StateRootVerifyFlag.Unverified,
StateRoot = new StateRoot
{
Version = MPTTrie.Version,
Index = currentIndex,
PreHash = preHash,
Root = currentRoot,
}
};
snapshot.StateRoots.Add(currentIndex, stateRootState);
snapshot.Commit();
}
}