protected virtual async Task <Block> FillBlockAfterExecutionAsync(BlockHeader blockHeader, List <Transaction> transactions,
ReturnSetCollection returnSetCollection)
{
Logger.LogTrace("Start block field filling after execution.");
var bloom = new Bloom();
var blockStateSet = new BlockStateSet
{
BlockHeight = blockHeader.Height,
PreviousHash = blockHeader.PreviousBlockHash
};
foreach (var returnSet in returnSetCollection.Executed)
{
foreach (var change in returnSet.StateChanges)
{
blockStateSet.Changes[change.Key] = change.Value;
blockStateSet.Deletes.Remove(change.Key);
}
foreach (var delete in returnSet.StateDeletes)
{
blockStateSet.Deletes.AddIfNotContains(delete.Key);
blockStateSet.Changes.Remove(delete.Key);
}
bloom.Combine(new[] { new Bloom(returnSet.Bloom.ToByteArray()) });
}
blockHeader.Bloom = ByteString.CopyFrom(bloom.Data);
blockHeader.MerkleTreeRootOfWorldState = CalculateWorldStateMerkleTreeRoot(blockStateSet);
var allExecutedTransactionIds = transactions.Select(x => x.GetHash()).ToList();
var orderedReturnSets = returnSetCollection.ToList().AsParallel()
.OrderBy(d => allExecutedTransactionIds.IndexOf(d.TransactionId)).ToList();
blockHeader.MerkleTreeRootOfTransactionStatus =
CalculateTransactionStatusMerkleTreeRoot(orderedReturnSets);
blockHeader.MerkleTreeRootOfTransactions = CalculateTransactionMerkleTreeRoot(allExecutedTransactionIds);
var blockHash = blockHeader.GetHashWithoutCache();
var blockBody = new BlockBody();
blockBody.TransactionIds.AddRange(allExecutedTransactionIds);
var block = new Block
{
Header = blockHeader,
Body = blockBody
};
blockStateSet.BlockHash = blockHash;
Logger.LogTrace("Set block state set.");
await _blockchainStateService.SetBlockStateSetAsync(blockStateSet);
Logger.LogTrace("Finish block field filling after execution.");
return(block);
}
public async Task <BlockExecutedSet> ExecuteBlockAsync(BlockHeader blockHeader,
IEnumerable <Transaction> nonCancellableTransactions, IEnumerable <Transaction> cancellableTransactions,
CancellationToken cancellationToken)
{
Logger.LogTrace("Entered ExecuteBlockAsync");
var nonCancellable = nonCancellableTransactions.ToList();
var cancellable = cancellableTransactions.ToList();
var nonCancellableReturnSets =
await _transactionExecutingService.ExecuteAsync(
new TransactionExecutingDto { BlockHeader = blockHeader, Transactions = nonCancellable },
CancellationToken.None);
Logger.LogTrace("Executed non-cancellable txs");
var returnSetCollection = new ExecutionReturnSetCollection(nonCancellableReturnSets);
List <ExecutionReturnSet> cancellableReturnSets = new List <ExecutionReturnSet>();
if (!cancellationToken.IsCancellationRequested && cancellable.Count > 0)
{
cancellableReturnSets = await _transactionExecutingService.ExecuteAsync(
new TransactionExecutingDto
{
BlockHeader = blockHeader,
Transactions = cancellable,
PartialBlockStateSet = returnSetCollection.ToBlockStateSet()
},
cancellationToken);
returnSetCollection.AddRange(cancellableReturnSets);
Logger.LogTrace("Executed cancellable txs");
}
var executedCancellableTransactions = new HashSet <Hash>(cancellableReturnSets.Select(x => x.TransactionId));
var allExecutedTransactions =
nonCancellable.Concat(cancellable.Where(x => executedCancellableTransactions.Contains(x.GetHash())))
.ToList();
var blockStateSet =
CreateBlockStateSet(blockHeader.PreviousBlockHash, blockHeader.Height, returnSetCollection);
var block = await FillBlockAfterExecutionAsync(blockHeader, allExecutedTransactions, returnSetCollection,
blockStateSet);
// set txn results
var transactionResults = await SetTransactionResultsAsync(returnSetCollection, block.Header);
// set blocks state
blockStateSet.BlockHash = block.GetHash();
Logger.LogTrace("Set block state set.");
await _blockchainStateService.SetBlockStateSetAsync(blockStateSet);
// handle execution cases
await CleanUpReturnSetCollectionAsync(block.Header, returnSetCollection);
return(new BlockExecutedSet
{
Block = block,
TransactionMap = allExecutedTransactions.ToDictionary(p => p.GetHash(), p => p),
TransactionResultMap = transactionResults.ToDictionary(p => p.TransactionId, p => p)
});
}
private async Task <Block> FillBlockAfterExecutionAsync(BlockHeader blockHeader, List <Transaction> transactions,
List <ExecutionReturnSet> blockExecutionReturnSet)
{
var bloom = new Bloom();
var blockStateSet = new BlockStateSet
{
BlockHeight = blockHeader.Height,
PreviousHash = blockHeader.PreviousBlockHash
};
foreach (var returnSet in blockExecutionReturnSet)
{
foreach (var change in returnSet.StateChanges)
{
blockStateSet.Changes[change.Key] = change.Value;
}
if (returnSet.Status == TransactionResultStatus.Mined)
{
bloom.Combine(new[] { new Bloom(returnSet.Bloom.ToByteArray()) });
}
}
blockHeader.Bloom = ByteString.CopyFrom(bloom.Data);
blockHeader.MerkleTreeRootOfWorldState = CalculateWorldStateMerkleTreeRoot(blockStateSet);
var allExecutedTransactionIds = transactions.Select(x => x.GetHash()).ToList();
blockExecutionReturnSet = blockExecutionReturnSet.AsParallel()
.OrderBy(d => allExecutedTransactionIds.IndexOf(d.TransactionId)).ToList();
blockHeader.MerkleTreeRootOfTransactionStatus =
CalculateTransactionStatusMerkleTreeRoot(blockExecutionReturnSet);
blockHeader.MerkleTreeRootOfTransactions = CalculateTransactionMerkleTreeRoot(allExecutedTransactionIds);
var blockHash = blockHeader.GetHashWithoutCache();
var blockBody = new BlockBody();
blockBody.TransactionIds.AddRange(allExecutedTransactionIds);
var block = new Block
{
Header = blockHeader,
Body = blockBody
};
blockStateSet.BlockHash = blockHash;
await _blockchainStateService.SetBlockStateSetAsync(blockStateSet);
return(block);
}