public StateSyncFeed(
ISnapshotableDb codeDb,
ISnapshotableDb stateDb,
IDb tempDb,
ISyncModeSelector syncModeSelector,
IBlockTree blockTree,
ILogManager logManager)
{
_codeDb = codeDb?.Innermost ?? throw new ArgumentNullException(nameof(codeDb));
_stateDb = stateDb?.Innermost ?? throw new ArgumentNullException(nameof(stateDb));
_tempDb = tempDb ?? throw new ArgumentNullException(nameof(tempDb));
_blockTree = blockTree ?? throw new ArgumentNullException(nameof(blockTree));
_syncModeSelector = syncModeSelector ?? throw new ArgumentNullException(nameof(syncModeSelector));
_syncModeSelector.Changed += SyncModeSelectorOnChanged;
_logger = logManager.GetClassLogger() ?? throw new ArgumentNullException(nameof(logManager));
byte[] progress = _codeDb.Get(_fastSyncProgressKey);
_data = new DetailedProgress(_blockTree.ChainId, progress);
_pendingItems = new PendingSyncItems();
_syncProgress = new StateSyncProgress(0, _logger);
}
public void ResetStateRoot(long blockNumber, Keccak stateRoot)
{
if (CurrentState != SyncFeedState.Dormant)
{
throw new InvalidOperationException("Cannot reset state sync on an active feed");
}
Interlocked.Exchange(ref _hintsToResetRoot, 0);
if (_logger.IsInfo)
{
_logger.Info($"Setting state sync state root to {blockNumber} {stateRoot}");
}
_currentSyncStart = DateTime.UtcNow;
_currentSyncStartSecondsInSync = _data.SecondsInSync;
_data.LastReportTime = (DateTime.UtcNow, DateTime.UtcNow);
_data.LastSavedNodesCount = _data.SavedNodesCount;
_data.LastRequestedNodesCount = _data.RequestedNodesCount;
if (_rootNode != stateRoot)
{
_syncProgress = new StateSyncProgress(blockNumber, _logger);
_blockNumber = blockNumber;
_rootNode = stateRoot;
lock (_dependencies) _dependencies.Clear();
lock (_codesSameAsNodes) _codesSameAsNodes.Clear();
_pendingItems.Clear();
if (_logger.IsDebug)
{
_logger.Debug($"Clearing node stacks ({_pendingItems.Description})");
}
}
else
{
foreach ((StateSyncBatch pendingRequest, _) in _pendingRequests)
{
// re-add the pending request
for (int i = 0; i < pendingRequest.RequestedNodes.Length; i++)
{
AddNodeToPending(pendingRequest.RequestedNodes[i], null, "pending request", true);
}
}
}
_pendingRequests.Clear();
bool hasOnlyRootNode = false;
if (_rootNode != Keccak.EmptyTreeHash)
{
if (_pendingItems.Count == 1)
{
// state root can only be located on state stream
StateSyncItem potentialRoot = _pendingItems.PeekState();
if (potentialRoot?.Hash == _rootNode)
{
hasOnlyRootNode = true;
}
}
if (!hasOnlyRootNode)
{
AddNodeToPending(new StateSyncItem(_rootNode, NodeDataType.State, 0, 0), null, "initial");
}
}
}