protected virtual byte[] SerializeHeader(uint nTime, byte[] extraNonce, uint nonce)
{
byte[] serialized;
using (var stream = new MemoryStream())
{
var bs = new BitcoinStream(stream, true);
BlockHeader.ReadWrite(bs);
serialized = stream.ToArray();
}
var tmpBlockHeader = new CommerciumBlockHeader(serialized);
tmpBlockHeader.Timestamp = nTime;
tmpBlockHeader.Nonce = nonce;
Array.Resize(ref extraNonce, 32);
tmpBlockHeader.ExtraData = extraNonce;
byte[] serializedTmp;
using (var stream = new MemoryStream())
{
var bs = new BitcoinStream(stream, true);
tmpBlockHeader.ReadWriteWithoutSolution(bs);
serializedTmp = stream.ToArray();
}
return(serializedTmp);
}
public virtual void Init(CommerciumGetWork work, string jobId,
PoolConfig poolConfig, ClusterConfig clusterConfig, IMasterClock clock,
IDestination poolAddressDestination, BitcoinNetworkType networkType,
double shareMultiplier, decimal blockrewardMultiplier, IHashAlgorithm headerHasher)
{
Contract.RequiresNonNull(work, nameof(work));
Contract.RequiresNonNull(poolConfig, nameof(poolConfig));
Contract.RequiresNonNull(clusterConfig, nameof(clusterConfig));
Contract.RequiresNonNull(clock, nameof(clock));
Contract.RequiresNonNull(poolAddressDestination, nameof(poolAddressDestination));
Contract.RequiresNonNull(headerHasher, nameof(headerHasher));
Contract.Requires <ArgumentException>(!string.IsNullOrEmpty(jobId), $"{nameof(jobId)} must not be empty");
this.clock = clock;
if (CommerciumConstants.Chains.TryGetValue(poolConfig.Coin.Type, out var chain))
{
chain.TryGetValue(networkType, out chainConfig);
}
Work = work;
BlockHeader = new CommerciumBlockHeader(work.Data);
JobId = jobId;
this.shareMultiplier = shareMultiplier;
this.headerHasher = headerHasher;
blockTarget = new Target(BlockHeader.Bits);
Difficulty = chainConfig.Diff1.Divide(blockTarget.ToBigInteger()).LongValue;
BuildCoinbase();
jobParams = new object[]
{
JobId,
BlockHeader.PrevBlock.ToHexString(),
coinbaseInitialHex,
coinbaseFinalHex,
"",
BlockHeader.Version.ToStringHex8().HexToByteArray().ReverseArray().ToHexString(),
BlockHeader.Bits.ReverseByteOrder().ToStringHex8(),
BlockHeader.Timestamp.ReverseByteOrder().ToStringHex8(),
false
};
}
protected virtual async Task <(bool IsNew, bool Force)> UpdateJob(bool forceUpdate, string via = null, string json = null)
{
logger.LogInvoke(LogCat);
try
{
if (forceUpdate)
{
_lastJobRebroadcast = _clock.Now;
}
var response = string.IsNullOrEmpty(json) ?
await GetWorkAsync() :
GetWorkFromJson(json);
// may happen if daemon is currently not connected to peers
if (response.Error != null)
{
logger.Warn(() => $"[{LogCat}] Unable to update job. Daemon responded with: {response.Error.Message} Code {response.Error.Code}");
return(false, forceUpdate);
}
var work = response.Response;
var blockHeader = new CommerciumBlockHeader(work.Data);
var job = currentJob;
var isNew = job == null ||
(job.BlockHeader?.PrevBlock != blockHeader.PrevBlock &&
blockHeader.Height > job.BlockHeader?.Height);
if (isNew || forceUpdate)
{
job = new CommerciumJob();
job.Init(work, NextJobId(),
poolConfig, clusterConfig, _clock, _poolAddressDestination, _networkType,
ShareMultiplier, _extraPoolPaymentProcessingConfig?.BlockrewardMultiplier ?? 1.0m,
_headerHasher);
lock (jobLock)
{
if (isNew)
{
if (via != null)
{
logger.Info(() => $"[{LogCat}] Detected new block {blockHeader.Height} via {via}");
}
else
{
logger.Info(() => $"[{LogCat}] Detected new block {blockHeader.Height}");
}
_validJobs.Clear();
// update stats
BlockchainStats.LastNetworkBlockTime = _clock.Now;
BlockchainStats.BlockHeight = blockHeader.Height;
BlockchainStats.NetworkDifficulty = job.Difficulty;
}
else
{
// trim active jobs
while (_validJobs.Count > _maxActiveJobs - 1)
{
_validJobs.RemoveAt(0);
}
}
_validJobs.Add(job);
}
currentJob = job;
}
return(isNew, forceUpdate);
}
catch (Exception ex)
{
logger.Error(ex, () => $"[{LogCat}] Error during {nameof(UpdateJob)}");
}
return(false, forceUpdate);
}