public ConsensusStats(CoinViewStack stack, CoinView coinView, ConsensusLoop consensusLoop, ChainBehavior.ChainState chainState, ConcurrentChain chain, IConnectionManager connectionManager)
{
stack = new CoinViewStack(coinView);
this.cache = stack.Find <CachedCoinView>();
this.dbreeze = stack.Find <DBreezeCoinView>();
this.bottom = stack.Bottom;
this.consensusLoop = consensusLoop;
this.lookaheadPuller = this.consensusLoop.Puller as LookaheadBlockPuller;
this.lastSnapshot = consensusLoop.Validator.PerformanceCounter.Snapshot();
this.lastSnapshot2 = this.dbreeze?.PerformanceCounter.Snapshot();
this.lastSnapshot3 = this.cache?.PerformanceCounter.Snapshot();
this.chainState = chainState;
this.chain = chain;
this.connectionManager = connectionManager;
}
private void RunLoop()
{
try
{
var stack = new CoinViewStack(this.coinView);
var cache = stack.Find <CachedCoinView>();
var stats = new ConsensusStats(stack, this.coinView, this.consensusLoop, this.chainState, this.chain, this.connectionManager);
var cancellationToken = this.nodeLifetime.ApplicationStopping;
ChainedBlock lastTip = this.consensusLoop.Tip;
foreach (var block in this.consensusLoop.Execute(cancellationToken))
{
if (this.consensusLoop.Tip.FindFork(lastTip) != lastTip)
{
Logs.FullNode.LogInformation("Reorg detected, rewinding from " + lastTip.Height + " (" + lastTip.HashBlock + ") to " + this.consensusLoop.Tip.Height + " (" + this.consensusLoop.Tip.HashBlock + ")");
}
lastTip = this.consensusLoop.Tip;
cancellationToken.ThrowIfCancellationRequested();
if (block.Error != null)
{
Logs.FullNode.LogError("Block rejected: " + block.Error.Message);
//Pull again
this.consensusLoop.Puller.SetLocation(this.consensusLoop.Tip);
if (block.Error == ConsensusErrors.BadWitnessNonceSize)
{
Logs.FullNode.LogInformation("You probably need witness information, activating witness requirement for peers.");
this.connectionManager.AddDiscoveredNodesRequirement(NodeServices.NODE_WITNESS);
this.consensusLoop.Puller.RequestOptions(TransactionOptions.Witness);
continue;
}
//Set the PoW chain back to ConsensusLoop.Tip
this.chain.SetTip(this.consensusLoop.Tip);
//Since ChainBehavior check PoW, MarkBlockInvalid can't be spammed
Logs.FullNode.LogError("Marking block as invalid");
this.chainState.MarkBlockInvalid(block.Block.GetHash());
}
if (block.Error == null)
{
this.chainState.HighestValidatedPoW = this.consensusLoop.Tip;
if (this.chain.Tip.HashBlock == block.ChainedBlock?.HashBlock)
{
var unused = cache.FlushAsync();
}
this.signals.Blocks.Broadcast(block.Block);
}
// TODO: replace this with a signalling object
if (stats.CanLog)
{
stats.Log();
}
}
}
catch (Exception ex)
{
if (ex is OperationCanceledException)
{
if (this.nodeLifetime.ApplicationStopping.IsCancellationRequested)
{
return;
}
}
// TODO Need to revisit unhandled exceptions in a way that any process can signal an exception has been
// thrown so that the node and all the disposables can stop gracefully.
Logs.Consensus.LogCritical(new EventId(0), ex, "Consensus loop unhandled exception (Tip:" + this.consensusLoop.Tip?.Height + ")");
throw;
}
}