public void AddBlock(ChainedHeader chainedHeader, IEnumerable <BlockTx> blockTxes, CancellationToken cancelToken = default(CancellationToken))
{
var confirmedTxes = ImmutableDictionary.CreateBuilder <UInt256, UnconfirmedTx>();
updateLock.DoWrite(() =>
{
using (var handle = storageManager.OpenUnconfirmedTxesCursor())
{
var unconfirmedTxesCursor = handle.Item;
unconfirmedTxesCursor.BeginTransaction();
var newChain = chain.Value.ToBuilder().AddBlock(chainedHeader).ToImmutable();
foreach (var blockTx in blockTxes)
{
// remove any txes confirmed in the block from the list of unconfirmed txes
UnconfirmedTx unconfirmedTx;
if (unconfirmedTxesCursor.TryGetTransaction(blockTx.Hash, out unconfirmedTx))
{
// track confirmed txes
confirmedTxes.Add(unconfirmedTx.Hash, unconfirmedTx);
if (!unconfirmedTxesCursor.TryRemoveTransaction(blockTx.Hash))
{
throw new InvalidOperationException();
}
}
// check for and remove any unconfirmed txes that conflict with the confirmed tx
var confirmedTx = blockTx.EncodedTx.Decode().Transaction;
foreach (var input in confirmedTx.Inputs)
{
var conflictingTxes = unconfirmedTxesCursor.GetTransactionsSpending(input.PrevTxOutputKey);
if (conflictingTxes.Count > 0)
{
logger.Warn($"Removing {conflictingTxes.Count} conflicting txes from the unconfirmed transaction pool");
// remove the conflicting unconfirmed txes
foreach (var conflictingTx in conflictingTxes.Keys)
{
if (!unconfirmedTxesCursor.TryRemoveTransaction(conflictingTx))
{
throw new StorageCorruptException(StorageType.UnconfirmedTxes, $"{conflictingTx} is indexed but not present");
}
}
}
}
}
unconfirmedTxesCursor.ChainTip = chainedHeader;
commitLock.DoWrite(() =>
{
unconfirmedTxesCursor.CommitTransaction();
chain = new Lazy <Chain>(() => newChain).Force();
});
}
});
TxesConfirmed?.Invoke(this, new TxesConfirmedEventArgs(chainedHeader, confirmedTxes.ToImmutable()));
}
private void RaiseTxesConfirmed(object sender, TxesConfirmedEventArgs e)
{
TxesConfirmed?.Invoke(this, e);
}