Esempio n. 1
0
 // every round must last around 5 seconds
 // when round ends following things will happen:
 // 1. Shard Leader will send block with information about Transactions Registry Block collected most votes
 // 2. Winning Transactions Registry Block will be saved to local database and will be sent to Storage Layer
 // 3. It will be created Combined Block that will hold information about winning Transactions Registry Block
 private void RoundEndedHandler(RoundDescriptor roundDescriptor)
 {
     if (roundDescriptor == null)
     {
         return;
     }
 }
Esempio n. 2
0
        public void AddVotingBlock(RegistryConfidenceBlock confidenceBlock)
        {
            if (confidenceBlock == null)
            {
                throw new ArgumentNullException(nameof(confidenceBlock));
            }

            _logger.Debug($"AddVotingBlock - Adding ConfidenceBlock of round {confidenceBlock.BlockHeight} with BitMask {confidenceBlock.BitMask.ToHexString()}");

            //if (confidenceBlock.SyncBlockHeight <= _lastCompletedSyncHeight)
            if (_lastCompletedRound > 1 && confidenceBlock.BlockHeight <= _lastCompletedRound && confidenceBlock.BlockHeight != 1 || _lastCompletedRound == 1 && confidenceBlock.BlockHeight == 1)
            {
                _logger.Error($"AddVotingBlock - Received ConfidenceBlock with Round {confidenceBlock.BlockHeight} violates last completed Round {_lastCompletedRound}. BitMask: {confidenceBlock.BitMask.ToHexString()}");
                return;
            }

            lock (_syncRound)
            {
                if (!_roundDescriptors.ContainsKey(confidenceBlock.BlockHeight))
                {
                    RoundDescriptor roundDescriptor = new RoundDescriptor(_transactionHashKey);
                    roundDescriptor.AddVotingBlock(confidenceBlock);
                    _roundDescriptors.Add(confidenceBlock.BlockHeight, roundDescriptor);
                }
                else
                {
                    _roundDescriptors[confidenceBlock.BlockHeight].AddVotingBlock(confidenceBlock);
                }

                _logger.Debug($"AddVotingBlock - Number of voting blocks for round {confidenceBlock.BlockHeight} = {_roundDescriptors[confidenceBlock.BlockHeight].VotingBlocks.Count}");
            }
        }
Esempio n. 3
0
        public RegistryFullBlock GetMostConfidentFullBlock(ulong round)
        {
            if (!_roundDescriptors.ContainsKey(round))
            {
                _logger.Error($"No RoundDescriptor with index {round}");
                return(null);
            }

            RoundDescriptor roundDescriptor = _roundDescriptors[round];

            foreach (var confidenceBlock in roundDescriptor.VotingBlocks)
            {
                IKey key = _transactionHashKey.GetKey(confidenceBlock.ReferencedBlockHash);
                if (roundDescriptor.CandidateVotes.ContainsKey(key))
                {
                    long sum = GetConfidence(confidenceBlock.BitMask);
                    roundDescriptor.CandidateVotes[key] += (int)sum;
                }
            }

            RegistryFullBlock transactionsFullBlockMostConfident = roundDescriptor.CandidateBlocks?.Values?.FirstOrDefault();

            //if (roundDescriptor.CandidateVotes?.Count > 0 )
            //{
            //    IKey mostConfidentKey = roundDescriptor.CandidateVotes.OrderByDescending(kv => (double)kv.Value / (double)roundDescriptor.CandidateBlocks[kv.Key].TransactionHeaders.Count).First().Key;
            //    transactionsFullBlockMostConfident = roundDescriptor.CandidateBlocks[mostConfidentKey];
            //}

            if (transactionsFullBlockMostConfident == null)
            {
                _logger.Error($"No candidates found for round {round}");
            }
            else
            {
                _logger.Debug($"Most confident RegistryFullBlock contains {transactionsFullBlockMostConfident.TransactionHeaders.Count} transactions");
            }

            return(transactionsFullBlockMostConfident);
        }
Esempio n. 4
0
        public void AddCandidateBlock(RegistryFullBlock transactionsFullBlock)
        {
            if (transactionsFullBlock == null)
            {
                throw new ArgumentNullException(nameof(transactionsFullBlock));
            }

            _logger.Debug($"Adding candidate block of round {transactionsFullBlock.BlockHeight} with {transactionsFullBlock.TransactionHeaders.Count} transactions");
            _logger.Debug($"{nameof(SyncRegistryMemPool)} - adding candidate block {transactionsFullBlock.RawData.ToHexString()}");

            if (_lastCompletedRound > 1 && transactionsFullBlock.BlockHeight <= _lastCompletedRound && transactionsFullBlock.BlockHeight != 1 || _lastCompletedRound == 1 && transactionsFullBlock.BlockHeight == 1)
            {
                _logger.Error($"Received FullBlock with Round {transactionsFullBlock.BlockHeight} violates last completed Round {_lastCompletedRound}. Number of transactions: {transactionsFullBlock.TransactionHeaders.Count}");
                return;
            }
            else
            {
                _logger.Debug($"Received FullBlock with Round {transactionsFullBlock.BlockHeight} matches completed Round {_lastCompletedRound}");
            }

            lock (_syncRound)
            {
                if (!_roundDescriptors.ContainsKey(transactionsFullBlock.BlockHeight))
                {
                    RoundDescriptor roundDescriptor = new RoundDescriptor(_transactionHashKey);
                    roundDescriptor.AddFullBlock(transactionsFullBlock);
                    _roundDescriptors.Add(transactionsFullBlock.BlockHeight, roundDescriptor);
                }
                else
                {
                    _roundDescriptors[transactionsFullBlock.BlockHeight].AddFullBlock(transactionsFullBlock);
                }

                _logger.Debug($"AddCandidateBlock - Number of candidate blocks for round {transactionsFullBlock.BlockHeight} = {_roundDescriptors[transactionsFullBlock.BlockHeight].CandidateBlocks.Count}");
            }
        }