private static ISealEngine ConfigureSealEngine(TransactionStore transactionStore, EthereumSigner ethereumSigner, InitParams initParams)
{
var blockMiningTime = TimeSpan.FromMilliseconds(initParams.FakeMiningDelay ?? 12000);
// var sealEngine = new EthashSealEngine(new Ethash());
var sealEngine = new FakeSealEngine(blockMiningTime, false);
sealEngine.IsMining = initParams.IsMining ?? false;
if (sealEngine.IsMining)
{
var transactionDelay = TimeSpan.FromMilliseconds((initParams.FakeMiningDelay ?? 12000) / 4);
TestTransactionsGenerator testTransactionsGenerator = new TestTransactionsGenerator(transactionStore, ethereumSigner, transactionDelay, _logManager);
// stateProvider.CreateAccount(testTransactionsGenerator.SenderAddress, 1000.Ether());
// stateProvider.Commit(specProvider.GenesisSpec);
testTransactionsGenerator.Start();
}
return(sealEngine);
}
private static void InitBlockchain(ChainSpec chainSpec, bool isMining, int miningDelay)
{
/* spec */
var blockMiningTime = TimeSpan.FromMilliseconds(miningDelay);
var transactionDelay = TimeSpan.FromMilliseconds(miningDelay / 4);
var specProvider = RopstenSpecProvider.Instance;
var difficultyCalculator = new DifficultyCalculator(specProvider);
// var sealEngine = new EthashSealEngine(new Ethash());
var sealEngine = new FakeSealEngine(blockMiningTime, false);
/* sync */
var transactionStore = new TransactionStore();
var blockTree = new BlockTree(RopstenSpecProvider.Instance, ChainLogger);
/* validation */
var headerValidator = new HeaderValidator(difficultyCalculator, blockTree, sealEngine, specProvider, ChainLogger);
var ommersValidator = new OmmersValidator(blockTree, headerValidator, ChainLogger);
var txValidator = new TransactionValidator(new SignatureValidator(ChainId.Ropsten));
var blockValidator = new BlockValidator(txValidator, headerValidator, ommersValidator, specProvider, ChainLogger);
/* state */
var dbProvider = new DbProvider(StateLogger);
var codeDb = new InMemoryDb();
var stateDb = new InMemoryDb();
var stateTree = new StateTree(stateDb);
var stateProvider = new StateProvider(stateTree, StateLogger, codeDb);
var storageProvider = new StorageProvider(dbProvider, stateProvider, StateLogger);
var storageDbProvider = new DbProvider(StateLogger);
/* blockchain */
var ethereumSigner = new EthereumSigner(specProvider, ChainLogger);
/* blockchain processing */
var blockhashProvider = new BlockhashProvider(blockTree);
var virtualMachine = new VirtualMachine(specProvider, stateProvider, storageProvider, blockhashProvider, EvmLogger);
var transactionProcessor = new TransactionProcessor(specProvider, stateProvider, storageProvider, virtualMachine, ethereumSigner, ChainLogger);
var rewardCalculator = new RewardCalculator(specProvider);
var blockProcessor = new BlockProcessor(specProvider, blockValidator, rewardCalculator, transactionProcessor, storageDbProvider, stateProvider, storageProvider, transactionStore, ChainLogger);
_blockchainProcessor = new BlockchainProcessor(blockTree, sealEngine, transactionStore, difficultyCalculator, blockProcessor, ChainLogger);
/* genesis */
foreach (KeyValuePair <Address, BigInteger> allocation in chainSpec.Allocations)
{
stateProvider.CreateAccount(allocation.Key, allocation.Value);
}
stateProvider.Commit(specProvider.GenesisSpec);
var testTransactionsGenerator = new TestTransactionsGenerator(transactionStore, ethereumSigner, transactionDelay, ChainLogger);
stateProvider.CreateAccount(testTransactionsGenerator.SenderAddress, 1000.Ether());
stateProvider.Commit(specProvider.GenesisSpec);
if (isMining)
{
testTransactionsGenerator.Start();
}
Block genesis = chainSpec.Genesis;
genesis.Header.StateRoot = stateProvider.StateRoot;
genesis.Header.RecomputeHash();
// we are adding test transactions account so the state root will change (not an actual ropsten at the moment)
// var expectedGenesisHash = "0x41941023680923e0fe4d74a34bdac8141f2540e3ae90623718e47d66d1ca4a2d";
// if (chainSpec.Genesis.Hash != new Keccak(expectedGenesisHash))
// {
// throw new Exception($"Unexpected genesis hash for Ropsten, expected {expectedGenesisHash}, but was {chainSpec.Genesis.Hash}");
// }
/* start test processing */
sealEngine.IsMining = isMining;
_blockchainProcessor.Start();
blockTree.AddBlock(genesis);
_syncManager = new SynchronizationManager(
blockTree,
blockValidator,
headerValidator,
transactionStore,
txValidator,
NetworkLogger);
_syncManager.Start();
}