/// <summary>
/// Copies states under state root hashes of given <paramref name="stateRootHashes"/>
/// to <paramref name="targetStateStore"/>.
/// </summary>
/// <param name="stateRootHashes">The state root hashes of states to copy.</param>
/// <param name="targetStateStore">The target state store to copy state root hashes.</param>
public void CopyStates(
IImmutableSet <HashDigest <SHA256> > stateRootHashes, TrieStateStore targetStateStore)
{
IKeyValueStore targetKeyValueStore = targetStateStore._stateKeyValueStore;
var stopwatch = new Stopwatch();
_logger.Verbose($"Started {nameof(CopyStates)}()");
stopwatch.Start();
foreach (HashDigest <SHA256> stateRootHash in stateRootHashes)
{
var stateTrie = new MerkleTrie(
_stateKeyValueStore,
new HashNode(stateRootHash),
_secure
);
foreach (var(key, value) in stateTrie.IterateNodeKeyValuePairs())
{
targetKeyValueStore.Set(key, value);
}
}
stopwatch.Stop();
_logger.Debug(
"Finished to copy all states {ElapsedMilliseconds} ms",
stopwatch.ElapsedMilliseconds);
_logger.Verbose($"Finished {nameof(CopyStates)}()");
}