public bool Execute(CancellationToken token, out Block block)
{
block = null;
var txs = TransactionPool.GetPool();
var time = DateTime.UtcNow;
var subsidy = BlockchainUtil.GetSubsidy(Blockchain.Chain.Count);
var txList = txs.Where(tx =>
{
if (token.IsCancellationRequested || !Blockchain.VerifyTransaction(tx, time, false, out var txFee))
{
return(false);
}
subsidy += txFee;
return(true);
}).ToList();
var coinbaseOut = new Output()
{
Amount = subsidy,
PublicKeyHash = MinerPublicKeyHash
};
var tb = new TransactionBuilder(new List <Output>()
{
coinbaseOut
}, new List <Input>());
var coinbaseTx = tb.ToTransaction(time);
if (!Blockchain.VerifyTransaction(coinbaseTx, time, true, out var txFee, subsidy))
{
return(false);
}
txList.Insert(0, coinbaseTx);
var txIds = txList.Select(x => x.Id.Bytes).ToList();
var mineBlock = new Block()
{
Id = null,
PreviousBlockHash = Blockchain.Chain.Last().Id,
Transactions = null,
MerkleRootHash = HashUtil.ComputeMerkleRootHash(txIds),
Bits = Blockchain.GetDifficulty()
};
if (!Mine(mineBlock, token))
{
return(false);
}
mineBlock.Transactions = txList;
block = mineBlock;
return(true);
}
public Miner(TransactionPool tp, Blockchain blockchain, byte[] minerKeyHash)
{
TransactionPool = tp;
Blockchain = blockchain;
MinerPublicKeyHash = minerKeyHash;
}
public Blockchain(TransactionPool transactionPool)
{
TransactionPool = transactionPool;
BlockVerify(BlockchainUtil.CreateGenesisBlock());
}