Beispiel #1
0
        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()));
        }
Beispiel #2
0
 private void RaiseTxesConfirmed(object sender, TxesConfirmedEventArgs e)
 {
     TxesConfirmed?.Invoke(this, e);
 }