/// <summary>
/// Cancels the current mining progress without checking for any blocks.
/// </summary>
public void CancelMining()
{
if (_currentMiningProgress == null)
{
throw new InvalidOperationException("No mining is progress");
}
_currentMiningProgress.Dispose();
_currentMiningProgress = null;
}
/// <summary>
/// Creates a block containing suitable pending transactions and a mining helper object.
/// </summary>
/// <param name="minerAddress">Wallet address of the miner to be added to coinbase transaction.</param>
/// <param name="nonceRange">Range of nonce values to try in each call to <see cref="BlockMining.Attempt"/>.</param>
/// <returns>The mining helper.</returns>
public BlockMining PrepareMining(string minerAddress, int nonceRange = 100_000)
{
if (_currentMiningProgress != null)
{
throw new InvalidOperationException("Mining in progress");
}
var block = new Block
{
Index = LatestBlock.Index + 1,
Timestamp = TimeUtils.MsSinceEpochToUtcNow(),
PreviousBlockHash = LatestBlock.Hash,
};
transactionDb.CollectPendingTransactionsForBlock(block, minerAddress);
_currentMiningProgress = new BlockMining(block, nonceRange);
return(_currentMiningProgress);
}
/// <summary>
/// Finishes the current mining progress.
/// If a valid block has been mined, adds it to the chain.
/// </summary>
/// <returns>True if a valid block has been mined and added.</returns>
public bool FinishMining()
{
if (_currentMiningProgress == null)
{
throw new InvalidOperationException("No mining is progress");
}
var receivedTxMap = new Dictionary <string, Transaction>();
var spentTxOutputs = new HashSet <TxOutPointer>();
bool isValid = validateBlock(_currentMiningProgress.Block, LatestBlock, transactionDb, receivedTxMap, spentTxOutputs);
if (isValid is false)
{
_currentMiningProgress.Dispose();
_currentMiningProgress = null;
return(false);
}
addNewBlock(_currentMiningProgress.Block);
_currentMiningProgress.Dispose();
_currentMiningProgress = null;
return(true);
}
