private bool AddTransaction(Transaction tx, bool verify)
{
if (verify && !tx.Verify(context.Snapshot, context.Transactions.Values))
{
Log($"Invalid transaction: {tx.Hash}{Environment.NewLine}{tx.ToArray().ToHexString()}", LogLevel.Warning);
RequestChangeView();
return(false);
}
if (!Plugin.CheckPolicy(tx))
{
Log($"reject tx: {tx.Hash}{Environment.NewLine}{tx.ToArray().ToHexString()}", LogLevel.Warning);
RequestChangeView();
return(false);
}
context.Transactions[tx.Hash] = tx;
if (context.TransactionHashes.Length == context.Transactions.Count)
{
if (VerifyRequest())
{
// if we are the primary for this view, but acting as a backup because we recovered our own
// previously sent prepare request, then we don't want to send a prepare response.
if (context.IsPrimary() || context.WatchOnly())
{
return(true);
}
// Timeout extension due to prepare response sent
// around 2*15/M=30.0/5 ~ 40% block time (for M=5)
ExtendTimerByFactor(2);
Log($"send prepare response");
localNode.Tell(new LocalNode.SendDirectly {
Inventory = context.MakePrepareResponse()
});
CheckPreparations();
}
else
{
RequestChangeView();
return(false);
}
}
return(true);
}
private void InitializeConsensus(byte viewNumber)
{
context.Reset(viewNumber);
if (context.MyIndex < 0)
{
return;
}
if (viewNumber > 0)
{
Log($"changeview: view={viewNumber} primary={context.Validators[context.GetPrimaryIndex((byte)(viewNumber - 1u))]}", LogLevel.Warning);
}
Log($"initialize: height={context.BlockIndex} view={viewNumber} index={context.MyIndex} role={(context.IsPrimary() ? "Primary" : "Backup")}");
if (context.IsPrimary())
{
if (isRecovering)
{
ChangeTimer(TimeSpan.FromSeconds(Blockchain.SecondsPerBlock << (viewNumber + 1)));
}
else
{
TimeSpan span = TimeProvider.Current.UtcNow - block_received_time;
if (span >= Blockchain.TimePerBlock)
{
ChangeTimer(TimeSpan.Zero);
}
else
{
ChangeTimer(Blockchain.TimePerBlock - span);
}
}
}
else
{
ChangeTimer(TimeSpan.FromSeconds(Blockchain.SecondsPerBlock << (viewNumber + 1)));
}
}
