public async Task <Chain> CreateChainAsync()
{
_defaultContractZeroCodeProvider.SetDefaultContractZeroRegistrationByType(null);
var blockHeader = new BlockHeader
{
Height = AElfConstants.GenesisBlockHeight,
PreviousBlockHash = Hash.Empty,
Time = new Timestamp {
Seconds = 0
}
};
var transactions = new List <Transaction>
{
new Transaction
{
From = _defaultContractZeroCodeProvider.ContractZeroAddress,
To = _defaultContractZeroCodeProvider.ContractZeroAddress,
MethodName = nameof(ACS0Container.ACS0Stub.DeploySystemSmartContract),
Params = new SystemContractDeploymentInput
{
Name = ZeroSmartContractAddressNameProvider.Name,
Category = KernelConstants.DefaultRunnerCategory,
Code = ByteString.CopyFrom(ContractCodes["AElf.Contracts.Genesis"]),
}.ToByteString()
},
new Transaction
{
From = _defaultContractZeroCodeProvider.ContractZeroAddress,
To = _defaultContractZeroCodeProvider.ContractZeroAddress,
MethodName = nameof(ACS0Container.ACS0Stub.DeploySystemSmartContract),
Params = new SystemContractDeploymentInput
{
Name = ConfigurationSmartContractAddressNameProvider.Name,
Category = KernelConstants.DefaultRunnerCategory,
Code = ByteString.CopyFrom(ContractCodes["AElf.Contracts.Configuration"])
}.ToByteString()
}
};
var block = await _blockExecutingService.ExecuteBlockAsync(blockHeader, transactions);
var chain = await _blockchainService.CreateChainAsync(block.Block, transactions);
var blockExecutionResult = await _blockchainExecutingService.ExecuteBlocksAsync(new[] { block.Block });
await _blockExecutionResultProcessingService.ProcessBlockExecutionResultAsync(chain, blockExecutionResult);
return(await _blockchainService.GetChainAsync());
}
/// <summary>
/// Creates a new chain with the provided genesis transactions and Smart Contract Zero.
/// </summary>
/// <returns>The new chain async.</returns>
/// <param name="">The new chain id which will be derived from the creator address.</param>
/// <param name="genesisTransactions">The transactions to be executed in the genesis block.</param>
public async Task <Chain> CreateNewChainAsync(IEnumerable <Transaction> genesisTransactions)
{
try
{
var blockHeader = new BlockHeader
{
Height = AElfConstants.GenesisBlockHeight,
PreviousBlockHash = Hash.Empty,
Time = new Timestamp {
Seconds = 0
},
ChainId = _blockchainService.GetChainId()
};
var transactions = genesisTransactions.ToList();
var block = await _blockExecutingService.ExecuteBlockAsync(blockHeader, transactions);
var chain = await _blockchainService.CreateChainAsync(block.Block, transactions);
var blockExecutionResult = await _blockchainExecutingService.ExecuteBlocksAsync(new[] { block.Block });
await _blockExecutionResultProcessingService.ProcessBlockExecutionResultAsync(chain, blockExecutionResult);
return(await _blockchainService.GetChainAsync());
}
catch (Exception e)
{
Logger.LogError(e, "Create new chain failed.");
throw;
}
}
public async Task AttachBlockAsync(Block block)
{
var chain = await _blockchainService.GetChainAsync();
var status = await _blockchainService.AttachBlockToChainAsync(chain, block);
if (!status.HasFlag(BlockAttachOperationStatus.LongestChainFound))
{
Logger.LogDebug($"Try to attach to chain but the status is {status}.");
return;
}
var notExecutedChainBlockLinks =
await _chainBlockLinkService.GetNotExecutedChainBlockLinksAsync(chain.LongestChainHash);
var notExecutedBlocks =
await _blockchainService.GetBlocksAsync(notExecutedChainBlockLinks.Select(l => l.BlockHash));
var executionResult = new BlockExecutionResult();
try
{
executionResult = await _blockchainExecutingService.ExecuteBlocksAsync(notExecutedBlocks);
}
catch (Exception e)
{
Logger.LogError(e, "Block execute fails.");
throw;
}
finally
{
await _blockExecutionResultProcessingService.ProcessBlockExecutionResultAsync(chain, executionResult);
}
}
