private void QueryBlock(ref IPersistedBlock block)
{
var blockInfo = _blockProcessor.GetBlock(block.BlockHash); // query the block.
if (blockInfo == null || blockInfo.Confirmations == -1) // make sure the block exists and is accepted.
{
block.Status = BlockStatus.Orphaned;
return;
}
// calculate our expected generation transactions's hash
var expectedTxHash = block.TransactionHash; // expected transaction hash
var genTxHash = blockInfo.Tx.First(); // read the hash of very first (generation transaction) of the block
// make sure our calculated and reported generation tx hashes match.
if (expectedTxHash != genTxHash)
{
block.Status = BlockStatus.Orphaned;
return;
}
var genTx = _blockProcessor.GetGenerationTransaction(blockInfo); // get the generation transaction.
// get the output transaction that targets pools central wallet.
var poolOutput = _blockProcessor.GetPoolOutput(genTx);
// make sure we have a valid reference to poolOutput
if (poolOutput == null)
{
block.Status = BlockStatus.Orphaned;
return;
}
block.SetReward((decimal)poolOutput.Amount); // set the reward of the block to miners.
switch (poolOutput.Category)
{
case "immature":
block.Status = BlockStatus.Pending;
break;
case "orphan":
block.Status = BlockStatus.Orphaned;
break;
case "generate":
block.Status = BlockStatus.Confirmed;
break;
}
// TODO: add back these.
// total amount of coins contained in the block.
// candidate.Amount = transaction.Details.Sum(output => (decimal)output.Amount);
// candidate.Reward = (decimal) poolOutput.Amount;
}
private bool SubmitBlock(IShare share)
{
// TODO: we should try different submission techniques and probably more then once: https://github.com/ahmedbodi/stratum-mining/blob/master/lib/bitcoin_rpc.py#L65-123
try
{
_daemonClient.SubmitBlock(share.BlockHex.ToHexString());
var block = _blockProcessor.GetBlock(share.BlockHash.ToHexString()); // query the block.
if (block == null) // make sure the block exists
{
return(false);
}
if (block.Confirmations == -1) // make sure the block is accepted.
{
_logger.Debug("Submitted block {0:l} is orphaned", block.Hash);
return(false);
}
var expectedTxHash = share.CoinbaseHash.Bytes.ReverseBuffer().ToHexString(); // calculate our expected generation transactions's hash
var genTxHash = block.Tx.First(); // read the hash of very first (generation transaction) of the block
if (expectedTxHash != genTxHash) // make sure our calculated generated transaction and one reported by coin daemon matches.
{
_logger.Debug("Submitted block {0:l} doesn't seem to belong us as reported generation transaction hash [{1:l}] doesn't match our expected one [{2:l}]", block.Hash, genTxHash, expectedTxHash);
return(false);
}
var genTx = _blockProcessor.GetGenerationTransaction(block); // get the generation transaction.
var poolOutput = _blockProcessor.GetPoolOutput(genTx); // get the output that targets pool's central address.
// make sure the blocks generation transaction contains our central pool wallet address
if (poolOutput == null)
{
_logger.Debug("Submitted block doesn't seem to belong us as generation transaction doesn't contain an output for pool's central wallet address: {0:}", _poolConfig.Wallet.Adress);
return(false);
}
// if the code flows here, then it means the block was succesfully submitted and belongs to us.
share.SetFoundBlock(block, genTx); // assign the block to share.
return(true);
}
catch (Exception e)
{
_logger.Error("Submit block failed - height: {0}, hash: {1:l} - {2:l}", share.Height, share.BlockHash.ToHexString(), e.Message);
return(false);
}
}