public EthereumJob(string id, EthereumBlockTemplate blockTemplate, ILogger logger)
{
Id = id;
BlockTemplate = blockTemplate;
this.logger = logger;
var target = blockTemplate.Target;
if (target.StartsWith("0x"))
{
target = target.Substring(2);
}
blockTarget = new uint256(target.HexToReverseByteArray());
}
private EthereumBlockTemplate AssembleBlockTemplate(string[] work)
{
if (work.Length < 4)
{
logger.Error(() => $"Error(s) refreshing blocktemplate: getWork did not return blockheight. Are you really connected to a Parity daemon?");
return(null);
}
// extract values
var height = work[3].IntegralFromHex <ulong>();
var targetString = work[2];
var target = BigInteger.Parse(targetString.Substring(2), NumberStyles.HexNumber);
var result = new EthereumBlockTemplate
{
Header = work[0],
Seed = work[1],
Target = targetString,
Difficulty = (ulong)BigInteger.Divide(EthereumConstants.BigMaxValue, target),
Height = height,
};
return(result);
}
protected bool UpdateJob(EthereumBlockTemplate blockTemplate)
{
logger.LogInvoke();
try
{
// may happen if daemon is currently not connected to peers
if (blockTemplate == null || blockTemplate.Header?.Length == 0)
{
return(false);
}
// logger.Info(() => $"Blocktemplate {blockTemplate.Height}-{blockTemplate.Header}");
var job = currentJob;
var isNew = currentJob == null ||
job.BlockTemplate.Height < blockTemplate.Height ||
job.BlockTemplate.Header != blockTemplate.Header;
if (isNew)
{
messageBus.NotifyChainHeight(poolConfig.Id, blockTemplate.Height, poolConfig.Template);
var jobId = NextJobId("x8");
// update template
job = new EthereumJob(jobId, blockTemplate, logger);
lock (jobLock)
{
// add jobs
validJobs[jobId] = job;
// remove old ones
var obsoleteKeys = validJobs.Keys
.Where(key => validJobs[key].BlockTemplate.Height < job.BlockTemplate.Height - MaxBlockBacklog).ToArray();
foreach (var key in obsoleteKeys)
{
validJobs.Remove(key);
}
}
currentJob = job;
// update stats
BlockchainStats.LastNetworkBlockTime = clock.Now;
BlockchainStats.BlockHeight = job.BlockTemplate.Height;
BlockchainStats.NetworkDifficulty = job.BlockTemplate.Difficulty;
BlockchainStats.NextNetworkTarget = job.BlockTemplate.Target;
BlockchainStats.NextNetworkBits = "";
}
return(isNew);
}
catch (Exception ex)
{
logger.Error(ex, () => $"Error during {nameof(UpdateJob)}");
}
return(false);
}