private async Task ExecuteInlineTransactions(int depth, Timestamp currentBlockTime,
TransactionContext txCtxt, TieredStateCache internalStateCache,
ChainContextWithTieredStateCache internalChainContext, CancellationToken cancellationToken)
{
var trace = txCtxt.Trace;
if (txCtxt.Trace.IsSuccessful() && txCtxt.Trace.InlineTransactions.Count > 0)
{
internalStateCache.Update(txCtxt.Trace.GetFlattenedWrites()
.Select(x => new KeyValuePair <string, byte[]>(x.Key, x.Value.ToByteArray())));
foreach (var inlineTx in txCtxt.Trace.InlineTransactions)
{
var inlineTrace = await ExecuteOneAsync(depth + 1, internalChainContext, inlineTx,
currentBlockTime, cancellationToken, txCtxt.Origin);
trace.InlineTraces.Add(inlineTrace);
if (!inlineTrace.IsSuccessful())
{
Logger.LogError($"Method name: {inlineTx.MethodName}, {inlineTrace.Error}");
// Fail already, no need to execute remaining inline transactions
break;
}
internalStateCache.Update(inlineTrace.GetFlattenedWrites()
.Select(x => new KeyValuePair <string, byte[]>(x.Key, x.Value.ToByteArray())));
}
}
}
public async Task <List <ExecutionReturnSet> > ExecuteAsync(BlockHeader blockHeader,
List <Transaction> transactions, CancellationToken cancellationToken, bool throwException)
{
var groupStateCache = new TieredStateCache();
var groupChainContext = new ChainContextWithTieredStateCache(blockHeader.PreviousBlockHash,
blockHeader.Height - 1, groupStateCache);
var returnSets = new List <ExecutionReturnSet>();
foreach (var transaction in transactions)
{
if (cancellationToken.IsCancellationRequested)
{
break;
}
var trace = await ExecuteOneAsync(0, groupChainContext, transaction, blockHeader.Time.ToDateTime(),
cancellationToken);
if (!trace.IsSuccessful())
{
if (throwException)
{
Logger.LogError(trace.StdErr);
}
trace.SurfaceUpError();
}
else
{
groupStateCache.Update(trace.GetFlattenedWrite()
.Select(x => new KeyValuePair <string, byte[]>(x.Key, x.Value.ToByteArray())));
}
if (trace.StdErr != string.Empty)
{
Logger.LogError(trace.StdErr);
}
var result = GetTransactionResult(trace, blockHeader.Height);
if (result != null)
{
await _transactionResultService.AddTransactionResultAsync(result, blockHeader);
}
var returnSet = GetReturnSet(trace, result);
returnSets.Add(returnSet);
}
return(returnSets);
}
public async Task <List <ExecutionReturnSet> > ExecuteAsync(TransactionExecutingDto transactionExecutingDto,
CancellationToken cancellationToken, bool throwException)
{
var groupStateCache = transactionExecutingDto.PartialBlockStateSet == null
? new TieredStateCache()
: new TieredStateCache(
new StateCacheFromPartialBlockStateSet(transactionExecutingDto.PartialBlockStateSet));
var groupChainContext = new ChainContextWithTieredStateCache(
transactionExecutingDto.BlockHeader.PreviousBlockHash,
transactionExecutingDto.BlockHeader.Height - 1, groupStateCache);
var returnSets = new List <ExecutionReturnSet>();
foreach (var transaction in transactionExecutingDto.Transactions)
{
if (cancellationToken.IsCancellationRequested)
{
break;
}
var trace = await ExecuteOneAsync(0, groupChainContext, transaction,
transactionExecutingDto.BlockHeader.Time,
cancellationToken);
// Will be useful when debugging MerkleTreeRootOfWorldState is different from each miner.
Logger.LogTrace(transaction.MethodName);
Logger.LogTrace(trace.StateSet.Writes.Values.Select(v => v.ToBase64().ComputeHash().ToHex())
.JoinAsString("\n"));
if (!trace.IsSuccessful())
{
if (throwException)
{
Logger.LogError(trace.Error);
}
// Do not package this transaction if any of his inline transactions canceled.
if (IsTransactionCanceled(trace))
{
break;
}
trace.SurfaceUpError();
}
else
{
groupStateCache.Update(trace.GetFlattenedWrites()
.Select(x => new KeyValuePair <string, byte[]>(x.Key, x.Value.ToByteArray())));
}
if (trace.Error != string.Empty)
{
Logger.LogError(trace.Error);
}
var result = GetTransactionResult(trace, transactionExecutingDto.BlockHeader.Height);
if (result != null)
{
await _transactionResultService.AddTransactionResultAsync(result,
transactionExecutingDto.BlockHeader);
}
var returnSet = GetReturnSet(trace, result);
returnSets.Add(returnSet);
}
return(returnSets);
}
private async Task <TransactionTrace> ExecuteOneAsync(int depth, IChainContext chainContext,
Transaction transaction, Timestamp currentBlockTime, CancellationToken cancellationToken,
Address origin = null, bool isCancellable = true)
{
if (isCancellable && cancellationToken.IsCancellationRequested)
{
return(new TransactionTrace
{
TransactionId = transaction.GetHash(),
ExecutionStatus = ExecutionStatus.Canceled,
Error = "Execution cancelled"
});
}
if (transaction.To == null || transaction.From == null)
{
throw new Exception($"error tx: {transaction}");
}
var trace = new TransactionTrace
{
TransactionId = transaction.GetHash()
};
var txContext = new TransactionContext
{
PreviousBlockHash = chainContext.BlockHash,
CurrentBlockTime = currentBlockTime,
Transaction = transaction,
BlockHeight = chainContext.BlockHeight + 1,
Trace = trace,
CallDepth = depth,
StateCache = chainContext.StateCache,
Origin = origin != null ? origin : transaction.From
};
var internalStateCache = new TieredStateCache(chainContext.StateCache);
var internalChainContext = new ChainContextWithTieredStateCache(chainContext, internalStateCache);
IExecutive executive;
try
{
executive = await _smartContractExecutiveService.GetExecutiveAsync(
internalChainContext,
transaction.To);
}
catch (SmartContractFindRegistrationException e)
{
txContext.Trace.ExecutionStatus = ExecutionStatus.ContractError;
txContext.Trace.Error += "Invalid contract address.\n";
return(trace);
}
try
{
#region PreTransaction
if (depth == 0)
{
if (!await ExecutePluginOnPreTransactionStageAsync(executive, txContext, currentBlockTime,
internalChainContext, internalStateCache, cancellationToken))
{
return(trace);
}
}
#endregion
await executive.ApplyAsync(txContext);
await ExecuteInlineTransactions(depth, currentBlockTime, txContext, internalStateCache,
internalChainContext, cancellationToken);
#region PostTransaction
if (depth == 0)
{
if (!await ExecutePluginOnPostTransactionStageAsync(executive, txContext, currentBlockTime,
internalChainContext, internalStateCache, cancellationToken))
{
return(trace);
}
}
#endregion
}
catch (Exception ex)
{
Logger.LogError($"Tx execution failed: {txContext}");
txContext.Trace.ExecutionStatus = ExecutionStatus.ContractError;
txContext.Trace.Error += ex + "\n";
throw;
}
finally
{
await _smartContractExecutiveService.PutExecutiveAsync(transaction.To, executive);
await LocalEventBus.PublishAsync(new TransactionExecutedEventData
{
TransactionTrace = trace
});
}
return(trace);
}
public async Task <List <ExecutionReturnSet> > ExecuteAsync(TransactionExecutingDto transactionExecutingDto,
CancellationToken cancellationToken)
{
try
{
var groupStateCache = transactionExecutingDto.PartialBlockStateSet == null
? new TieredStateCache()
: new TieredStateCache(
new StateCacheFromPartialBlockStateSet(transactionExecutingDto.PartialBlockStateSet));
var groupChainContext = new ChainContextWithTieredStateCache(
transactionExecutingDto.BlockHeader.PreviousBlockHash,
transactionExecutingDto.BlockHeader.Height - 1, groupStateCache);
var transactionResults = new List <TransactionResult>();
var returnSets = new List <ExecutionReturnSet>();
foreach (var transaction in transactionExecutingDto.Transactions)
{
TransactionTrace trace;
if (cancellationToken.IsCancellationRequested)
{
break;
}
var singleTxExecutingDto = new SingleTransactionExecutingDto
{
Depth = 0,
ChainContext = groupChainContext,
Transaction = transaction,
CurrentBlockTime = transactionExecutingDto.BlockHeader.Time,
};
try
{
var transactionExecutionTask = Task.Run(() => ExecuteOneAsync(singleTxExecutingDto,
cancellationToken), cancellationToken);
trace = await transactionExecutionTask.WithCancellation(cancellationToken);
}
catch (OperationCanceledException)
{
Logger.LogTrace("Transaction canceled.");
if (cancellationToken.IsCancellationRequested)
{
break;
}
continue;
}
if (trace == null)
{
break;
}
if (!trace.IsSuccessful())
{
// Do not package this transaction if any of his inline transactions canceled.
if (IsTransactionCanceled(trace))
{
break;
}
var transactionExecutingStateSets = new List <TransactionExecutingStateSet>();
foreach (var preTrace in trace.PreTraces)
{
if (preTrace.IsSuccessful())
{
transactionExecutingStateSets.AddRange(preTrace.GetStateSets());
}
}
foreach (var postTrace in trace.PostTraces)
{
if (postTrace.IsSuccessful())
{
transactionExecutingStateSets.AddRange(postTrace.GetStateSets());
}
}
groupStateCache.Update(transactionExecutingStateSets);
trace.SurfaceUpError();
}
else
{
groupStateCache.Update(trace.GetStateSets());
}
#if DEBUG
if (trace.Error != string.Empty)
{
Logger.LogError(trace.Error);
}
#endif
var result = GetTransactionResult(trace, transactionExecutingDto.BlockHeader.Height);
transactionResults.Add(result);
var returnSet = GetReturnSet(trace, result);
returnSets.Add(returnSet);
}
await _transactionResultService.AddTransactionResultsAsync(transactionResults,
transactionExecutingDto.BlockHeader);
return(returnSets);
}
catch (Exception e)
{
Logger.LogError(e, "Failed while executing txs in block.");
throw;
}
}
private async Task <TransactionTrace> ExecuteOneAsync(SingleTransactionExecutingDto singleTxExecutingDto,
CancellationToken cancellationToken)
{
if (singleTxExecutingDto.IsCancellable)
{
cancellationToken.ThrowIfCancellationRequested();
}
var txContext = CreateTransactionContext(singleTxExecutingDto, out var trace);
var internalStateCache = new TieredStateCache(singleTxExecutingDto.ChainContext.StateCache);
var internalChainContext = new ChainContextWithTieredStateCache(singleTxExecutingDto.ChainContext, internalStateCache);
IExecutive executive;
try
{
executive = await _smartContractExecutiveService.GetExecutiveAsync(
internalChainContext,
singleTxExecutingDto.Transaction.To);
}
catch (SmartContractFindRegistrationException)
{
txContext.Trace.ExecutionStatus = ExecutionStatus.ContractError;
txContext.Trace.Error += "Invalid contract address.\n";
return(trace);
}
try
{
#region PreTransaction
if (singleTxExecutingDto.Depth == 0)
{
if (!await ExecutePluginOnPreTransactionStageAsync(executive, txContext, singleTxExecutingDto.CurrentBlockTime,
internalChainContext, internalStateCache, cancellationToken))
{
trace.ExecutionStatus = ExecutionStatus.Prefailed;
return(trace);
}
}
#endregion
await executive.ApplyAsync(txContext);
if (txContext.Trace.IsSuccessful())
{
await ExecuteInlineTransactions(singleTxExecutingDto.Depth, singleTxExecutingDto.CurrentBlockTime,
txContext, internalStateCache,
internalChainContext, cancellationToken);
}
#region PostTransaction
if (singleTxExecutingDto.Depth == 0)
{
if (!await ExecutePluginOnPostTransactionStageAsync(executive, txContext, singleTxExecutingDto.CurrentBlockTime,
internalChainContext, internalStateCache, cancellationToken))
{
trace.ExecutionStatus = ExecutionStatus.Postfailed;
return(trace);
}
}
#endregion
}
catch (Exception ex)
{
Logger.LogError(ex, "Transaction execution failed.");
txContext.Trace.ExecutionStatus = ExecutionStatus.ContractError;
txContext.Trace.Error += ex + "\n";
throw;
}
finally
{
await _smartContractExecutiveService.PutExecutiveAsync(singleTxExecutingDto.ChainContext,
singleTxExecutingDto.Transaction.To, executive);
#if DEBUG
await LocalEventBus.PublishAsync(new TransactionExecutedEventData
{
TransactionTrace = trace
});
#endif
}
return(trace);
}
public async Task <List <ExecutionReturnSet> > ExecuteAsync(TransactionExecutingDto transactionExecutingDto,
CancellationToken cancellationToken)
{
try
{
var groupStateCache = transactionExecutingDto.PartialBlockStateSet.ToTieredStateCache();
var groupChainContext = new ChainContextWithTieredStateCache(
transactionExecutingDto.BlockHeader.PreviousBlockHash,
transactionExecutingDto.BlockHeader.Height - 1, groupStateCache);
var returnSets = new List <ExecutionReturnSet>();
foreach (var transaction in transactionExecutingDto.Transactions)
{
TransactionTrace trace;
if (cancellationToken.IsCancellationRequested)
{
break;
}
var singleTxExecutingDto = new SingleTransactionExecutingDto
{
Depth = 0,
ChainContext = groupChainContext,
Transaction = transaction,
CurrentBlockTime = transactionExecutingDto.BlockHeader.Time,
OriginTransactionId = transaction.GetHash()
};
try
{
var transactionExecutionTask = Task.Run(() => ExecuteOneAsync(singleTxExecutingDto,
cancellationToken), cancellationToken);
trace = await transactionExecutionTask.WithCancellation(cancellationToken);
}
catch (OperationCanceledException)
{
Logger.LogTrace("Transaction canceled.");
if (cancellationToken.IsCancellationRequested)
{
break;
}
continue;
}
if (!TryUpdateStateCache(trace, groupStateCache))
{
break;
}
#if DEBUG
if (!string.IsNullOrEmpty(trace.Error))
{
Logger.LogInformation(trace.Error);
}
#endif
var result = GetTransactionResult(trace, transactionExecutingDto.BlockHeader.Height);
var returnSet = GetReturnSet(trace, result);
returnSets.Add(returnSet);
}
return(returnSets);
}
catch (Exception e)
{
Logger.LogError(e, "Failed while executing txs in block.");
throw;
}
}
private async Task <TransactionTrace> ExecuteOneAsync(int depth, IChainContext chainContext,
Transaction transaction, DateTime currentBlockTime, CancellationToken cancellationToken)
{
if (cancellationToken.IsCancellationRequested)
{
return(new TransactionTrace()
{
TransactionId = transaction.GetHash(),
ExecutionStatus = ExecutionStatus.Canceled
});
}
if (transaction.To == null || transaction.From == null)
{
throw new Exception($"error tx: {transaction}");
}
var trace = new TransactionTrace
{
TransactionId = transaction.GetHash()
};
var txCtxt = new TransactionContext
{
PreviousBlockHash = chainContext.BlockHash,
CurrentBlockTime = currentBlockTime,
Transaction = transaction,
BlockHeight = chainContext.BlockHeight + 1,
Trace = trace,
CallDepth = depth,
StateCache = chainContext.StateCache
};
var internalStateCache = new TieredStateCache(chainContext.StateCache);
var internalChainContext = new ChainContextWithTieredStateCache(chainContext, internalStateCache);
var executive = await _smartContractExecutiveService.GetExecutiveAsync(
internalChainContext,
transaction.To);
try
{
#region PreTransaction
if (depth == 0)
{
foreach (var plugin in _plugins)
{
var transactions = await plugin.GetPreTransactionsAsync(executive.Descriptors, txCtxt);
foreach (var preTx in transactions)
{
var preTrace = await ExecuteOneAsync(0, internalChainContext, preTx, currentBlockTime,
cancellationToken);
trace.PreTransactions.Add(preTx);
trace.PreTraces.Add(preTrace);
if (!preTrace.IsSuccessful())
{
trace.ExecutionStatus = ExecutionStatus.Prefailed;
return(trace);
}
internalStateCache.Update(preTrace.GetFlattenedWrite()
.Select(x => new KeyValuePair <string, byte[]>(x.Key, x.Value.ToByteArray())));
}
}
}
#endregion
await executive.ApplyAsync(txCtxt);
if (txCtxt.Trace.IsSuccessful() && txCtxt.Trace.InlineTransactions.Count > 0)
{
internalStateCache.Update(txCtxt.Trace.GetFlattenedWrite()
.Select(x => new KeyValuePair <string, byte[]>(x.Key, x.Value.ToByteArray())));
foreach (var inlineTx in txCtxt.Trace.InlineTransactions)
{
var inlineTrace = await ExecuteOneAsync(depth + 1, internalChainContext, inlineTx,
currentBlockTime, cancellationToken);
trace.InlineTraces.Add(inlineTrace);
if (!inlineTrace.IsSuccessful())
{
// Fail already, no need to execute remaining inline transactions
break;
}
internalStateCache.Update(inlineTrace.GetFlattenedWrite()
.Select(x => new KeyValuePair <string, byte[]>(x.Key, x.Value.ToByteArray())));
}
}
}
catch (Exception ex)
{
txCtxt.Trace.ExecutionStatus = ExecutionStatus.ContractError;
txCtxt.Trace.StdErr += ex + "\n";
throw;
}
finally
{
await _smartContractExecutiveService.PutExecutiveAsync(transaction.To, executive);
}
return(trace);
}
private async Task <bool> ExecutePluginOnPostTransactionStageAsync(IExecutive executive,
ITransactionContext txCtxt,
Timestamp currentBlockTime, ChainContextWithTieredStateCache internalChainContext,
TieredStateCache internalStateCache,
CancellationToken cancellationToken)
{
var trace = txCtxt.Trace;
foreach (var plugin in _postPlugins)
{
var transactions = await plugin.GetPostTransactionsAsync(executive.Descriptors, txCtxt);
foreach (var postTx in transactions)
{
var postTrace = await ExecuteOneAsync(0, internalChainContext, postTx, currentBlockTime,
cancellationToken);
trace.PostTransactions.Add(postTx);
trace.PostTraces.Add(postTrace);
if (!postTrace.IsSuccessful())
{
trace.ExecutionStatus = ExecutionStatus.Postfailed;
postTrace.SurfaceUpError();
trace.Error += postTrace.Error;
return(false);
}
internalStateCache.Update(postTrace.GetFlattenedWrites()
.Select(x => new KeyValuePair <string, byte[]>(x.Key, x.Value.ToByteArray())));
}
}
return(true);
}
public async Task <List <ExecutionReturnSet> > ExecuteAsync(TransactionExecutingDto transactionExecutingDto,
CancellationToken cancellationToken, bool throwException)
{
try
{
var groupStateCache = transactionExecutingDto.PartialBlockStateSet == null
? new TieredStateCache()
: new TieredStateCache(
new StateCacheFromPartialBlockStateSet(transactionExecutingDto.PartialBlockStateSet));
var groupChainContext = new ChainContextWithTieredStateCache(
transactionExecutingDto.BlockHeader.PreviousBlockHash,
transactionExecutingDto.BlockHeader.Height - 1, groupStateCache);
var transactionResults = new List <TransactionResult>();
var returnSets = new List <ExecutionReturnSet>();
foreach (var transaction in transactionExecutingDto.Transactions)
{
TransactionTrace trace;
if (cancellationToken.IsCancellationRequested)
{
break;
}
var singleTxExecutingDto = new SingleTransactionExecutingDto
{
Depth = 0,
ChainContext = groupChainContext,
Transaction = transaction,
CurrentBlockTime = transactionExecutingDto.BlockHeader.Time,
};
try
{
var task = Task.Run(() => ExecuteOneAsync(singleTxExecutingDto,
cancellationToken), cancellationToken);
trace = await task.WithCancellation(cancellationToken);
}
catch (OperationCanceledException)
{
Logger.LogTrace($"transaction canceled");
break;
}
if (trace == null)
{
break;
}
// Will be useful when debugging MerkleTreeRootOfWorldState is different from each miner.
/*
* Logger.LogTrace(transaction.MethodName);
* Logger.LogTrace(trace.StateSet.Writes.Values.Select(v => v.ToBase64().ComputeHash().ToHex())
* .JoinAsString("\n"));
*/
if (!trace.IsSuccessful())
{
if (throwException)
{
Logger.LogError(trace.Error);
}
// Do not package this transaction if any of his inline transactions canceled.
if (IsTransactionCanceled(trace))
{
break;
}
var transactionExecutingStateSets = new List <TransactionExecutingStateSet>();
foreach (var preTrace in trace.PreTraces)
{
if (preTrace.IsSuccessful())
{
transactionExecutingStateSets.AddRange(preTrace.GetStateSets());
}
}
foreach (var postTrace in trace.PostTraces)
{
if (postTrace.IsSuccessful())
{
transactionExecutingStateSets.AddRange(postTrace.GetStateSets());
}
}
groupStateCache.Update(transactionExecutingStateSets);
trace.SurfaceUpError();
}
else
{
groupStateCache.Update(trace.GetStateSets());
}
if (trace.Error != string.Empty)
{
Logger.LogError(trace.Error);
}
var result = GetTransactionResult(trace, transactionExecutingDto.BlockHeader.Height);
if (result != null)
{
result.TransactionFee = trace.TransactionFee;
transactionResults.Add(result);
}
var returnSet = GetReturnSet(trace, result);
returnSets.Add(returnSet);
}
await _transactionResultService.AddTransactionResultsAsync(transactionResults,
transactionExecutingDto.BlockHeader);
return(returnSets);
}
catch (Exception e)
{
Logger.LogTrace("Failed while executing txs in block.", e);
throw;
}
}