public async Task <IBlockProducer> InitBlockProducer(IConsensusPlugin consensusPlugin)
{
if (!Enabled)
{
throw new InvalidOperationException("Plugin is disabled");
}
_nethermindApi.BlockProducerEnvFactory.TransactionsExecutorFactory = new MevBlockProducerTransactionsExecutorFactory(_nethermindApi.SpecProvider !, _nethermindApi.LogManager);
int megabundleProducerCount = _mevConfig.GetTrustedRelayAddresses().Any() ? 1 : 0;
List <MevBlockProducer.MevBlockProducerInfo> blockProducers =
new(_mevConfig.MaxMergedBundles + megabundleProducerCount + 1);
// Add non-mev block
MevBlockProducer.MevBlockProducerInfo standardProducer = await CreateProducer(consensusPlugin);
blockProducers.Add(standardProducer);
// Try blocks with all bundle numbers <= MaxMergedBundles
for (int bundleLimit = 1; bundleLimit <= _mevConfig.MaxMergedBundles; bundleLimit++)
{
BundleSelector bundleSelector = new(BundlePool, bundleLimit);
MevBlockProducer.MevBlockProducerInfo bundleProducer = await CreateProducer(consensusPlugin, bundleLimit, new BundleTxSource(bundleSelector, _nethermindApi.Timestamper));
blockProducers.Add(bundleProducer);
}
if (megabundleProducerCount > 0)
{
MegabundleSelector megabundleSelector = new(BundlePool);
MevBlockProducer.MevBlockProducerInfo bundleProducer = await CreateProducer(consensusPlugin, 0, new BundleTxSource(megabundleSelector, _nethermindApi.Timestamper));
blockProducers.Add(bundleProducer);
}
return(new MevBlockProducer(consensusPlugin.DefaultBlockProductionTrigger, _nethermindApi.LogManager, blockProducers.ToArray()));
}
protected override IBlockProducer CreateTestBlockProducer(TxPoolTxSource txPoolTxSource, ISealer sealer,
ITransactionComparerProvider transactionComparerProvider)
{
MiningConfig miningConfig = new() { MinGasPrice = UInt256.One };
SpecProvider.UpdateMergeTransitionInfo(1, 0);
BlockProducerEnvFactory blockProducerEnvFactory = new(
DbProvider,
BlockTree,
ReadOnlyTrieStore,
SpecProvider,
BlockValidator,
NoBlockRewards.Instance,
ReceiptStorage,
BlockPreprocessorStep,
TxPool,
transactionComparerProvider,
miningConfig,
LogManager)
{
TransactionsExecutorFactory =
new MevBlockProducerTransactionsExecutorFactory(SpecProvider, LogManager)
};
PostMergeBlockProducer CreatePostMergeBlockProducer(IBlockProductionTrigger blockProductionTrigger,
ITxSource?txSource = null)
{
BlockProducerEnv blockProducerEnv = blockProducerEnvFactory.Create(txSource);
return(new PostMergeBlockProducerFactory(SpecProvider, SealEngine, Timestamper, miningConfig,
LogManager).Create(
blockProducerEnv, blockProductionTrigger, txSource));
}
MevBlockProducer.MevBlockProducerInfo CreateProducer(int bundleLimit = 0,
ITxSource?additionalTxSource = null)
{
// TODO: this could be simplified a lot of the parent was not retrieved, not sure why do we need the parent here
bool BundleLimitTriggerCondition(BlockProductionEventArgs e)
{
// TODO: why do we need this parent? later we use only the current block number
BlockHeader?parent = BlockTree.GetProducedBlockParent(e.ParentHeader);
if (parent is not null)
{
// ToDo resolved conflict parent.Timestamp?
IEnumerable <MevBundle> bundles = BundlePool.GetBundles(parent.Number + 1, parent.Timestamp);
return(bundles.Count() >= bundleLimit);
}
return(false);
}
IManualBlockProductionTrigger manualTrigger = new BuildBlocksWhenRequested();
IBlockProductionTrigger trigger = manualTrigger;
if (bundleLimit != 0)
{
trigger = new TriggerWithCondition(manualTrigger, BundleLimitTriggerCondition);
}
IBlockProducer producer = CreatePostMergeBlockProducer(trigger, additionalTxSource);
return(new MevBlockProducer.MevBlockProducerInfo(producer, manualTrigger, new BeneficiaryTracer()));
}
int megabundleProducerCount = _relayAddresses.Any() ? 1 : 0;
List <MevBlockProducer.MevBlockProducerInfo> blockProducers =
new(_maxMergedBundles + megabundleProducerCount + 1);
// Add non-mev block
MevBlockProducer.MevBlockProducerInfo standardProducer = CreateProducer();
blockProducers.Add(standardProducer);
// Try blocks with all bundle numbers <= maxMergedBundles
for (int bundleLimit = 1; bundleLimit <= _maxMergedBundles; bundleLimit++)
{
BundleSelector bundleSelector = new(BundlePool, bundleLimit);
BundleTxSource bundleTxSource = new(bundleSelector, Timestamper);
MevBlockProducer.MevBlockProducerInfo bundleProducer = CreateProducer(bundleLimit, bundleTxSource);
blockProducers.Add(bundleProducer);
}
if (megabundleProducerCount > 0)
{
MegabundleSelector megabundleSelector = new(BundlePool);
BundleTxSource megabundleTxSource = new(megabundleSelector, Timestamper);
MevBlockProducer.MevBlockProducerInfo bundleProducer = CreateProducer(0, megabundleTxSource);
blockProducers.Add(bundleProducer);
}
MevBlockProducer blockProducer = new MevBlockProducer(BlockProductionTrigger, LogManager, blockProducers.ToArray());
blockProducer.BlockProduced += OnBlockProduced;
return(blockProducer);
}
protected override IBlockProducer CreateTestBlockProducer(TxPoolTxSource txPoolTxSource, ISealer sealer, ITransactionComparerProvider transactionComparerProvider)
{
MiningConfig miningConfig = new() { MinGasPrice = UInt256.One };
BlockProducerEnvFactory blockProducerEnvFactory = new(
DbProvider,
BlockTree,
ReadOnlyTrieStore,
SpecProvider,
BlockValidator,
NoBlockRewards.Instance,
ReceiptStorage,
BlockPreprocessorStep,
TxPool,
transactionComparerProvider,
miningConfig,
LogManager)
{
TransactionsExecutorFactory = new MevBlockProducerTransactionsExecutorFactory(SpecProvider, LogManager)
};
Eth2BlockProducer CreateEth2BlockProducer(IBlockProductionTrigger blockProductionTrigger, ITxSource?txSource = null) =>
new Eth2TestBlockProducerFactory(GasLimitCalculator, txSource).Create(
blockProducerEnvFactory,
BlockTree,
blockProductionTrigger,
SpecProvider,
Signer,
Timestamper,
miningConfig,
LogManager);
MevBlockProducer.MevBlockProducerInfo CreateProducer(int bundleLimit = 0, ITxSource?additionalTxSource = null)
{
bool BundleLimitTriggerCondition(BlockProductionEventArgs e)
{
BlockHeader?parent = BlockTree.GetProducedBlockParent(e.ParentHeader);
if (parent is not null)
{
IEnumerable <MevBundle> bundles = BundlePool.GetBundles(parent, Timestamper);
return(bundles.Count() >= bundleLimit);
}
return(false);
}
IManualBlockProductionTrigger manualTrigger = new BuildBlocksWhenRequested();
IBlockProductionTrigger trigger = manualTrigger;
if (bundleLimit != 0)
{
trigger = new TriggerWithCondition(manualTrigger, BundleLimitTriggerCondition);
}
IBlockProducer producer = CreateEth2BlockProducer(trigger, additionalTxSource);
return(new MevBlockProducer.MevBlockProducerInfo(producer, manualTrigger, new BeneficiaryTracer()));
}
int megabundleProducerCount = _relayAddresses.Any() ? 1 : 0;
List <MevBlockProducer.MevBlockProducerInfo> blockProducers =
new(_maxMergedBundles + megabundleProducerCount + 1);
// Add non-mev block
MevBlockProducer.MevBlockProducerInfo standardProducer = CreateProducer();
blockProducers.Add(standardProducer);
// Try blocks with all bundle numbers <= maxMergedBundles
for (int bundleLimit = 1; bundleLimit <= _maxMergedBundles; bundleLimit++)
{
BundleSelector bundleSelector = new(BundlePool, bundleLimit);
BundleTxSource bundleTxSource = new(bundleSelector, Timestamper);
MevBlockProducer.MevBlockProducerInfo bundleProducer = CreateProducer(bundleLimit, bundleTxSource);
blockProducers.Add(bundleProducer);
}
if (megabundleProducerCount > 0)
{
MegabundleSelector megabundleSelector = new(BundlePool);
BundleTxSource megabundleTxSource = new(megabundleSelector, Timestamper);
MevBlockProducer.MevBlockProducerInfo bundleProducer = CreateProducer(0, megabundleTxSource);
blockProducers.Add(bundleProducer);
}
return(new MevBlockProducer(BlockProductionTrigger, LogManager, blockProducers.ToArray()));
}
