public uint[] CalcDataSetItem(uint i)
{
uint n = Size / Ethash.HashBytes;
int r = Ethash.HashBytes / Ethash.WordBytes;
uint[] mixInts = new uint[Ethash.HashBytes / Ethash.WordBytes];
Buffer.BlockCopy(Data[i % n], 0, mixInts, 0, Ethash.HashBytes);
mixInts[0] = i ^ mixInts[0];
mixInts = Keccak512.ComputeUIntsToUInts(mixInts);
for (uint j = 0; j < Ethash.DataSetParents; j++)
{
ulong cacheIndex = Ethash.Fnv(i ^ j, mixInts[j % r]);
Ethash.Fnv(mixInts, Data[cacheIndex % n]);
}
mixInts = Keccak512.ComputeUIntsToUInts(mixInts);
return(mixInts);
}
public uint[] CalcDataSetItem(uint i)
{
uint n = Size / Ethash.HashBytes;
int r = Ethash.HashBytes / Ethash.WordBytes;
uint[] mixInts = new uint[Ethash.HashBytes / Ethash.WordBytes];
Data[i % n].AsUInts().CopyTo(mixInts);
mixInts[0] = i ^ mixInts[0];
mixInts = Keccak512.ComputeUIntsToUInts(mixInts);
for (uint j = 0; j < Ethash.DataSetParents; j++)
{
ulong cacheIndex = Ethash.Fnv(i ^ j, mixInts[j % r]);
Ethash.Fnv(mixInts, MemoryMarshal.Cast <Bucket, uint>(MemoryMarshal.CreateSpan(ref Data[cacheIndex % n], 1)));
}
mixInts = Keccak512.ComputeUIntsToUInts(mixInts);
return(mixInts);
}
public Task Init(INethermindApi nethermindApi)
{
_nethermindApi = nethermindApi;
if (_nethermindApi !.SealEngineType != SealEngineType.Ethash)
{
return(Task.CompletedTask);
}
var(getFromApi, setInApi) = _nethermindApi.ForInit;
setInApi.RewardCalculatorSource = new RewardCalculator(getFromApi.SpecProvider);
DifficultyCalculator difficultyCalculator = new DifficultyCalculator(getFromApi.SpecProvider);
Ethash ethash = new Ethash(getFromApi.LogManager);
setInApi.Sealer = getFromApi.Config <IMiningConfig>().Enabled
? (ISealer) new EthashSealer(ethash, getFromApi.EngineSigner, getFromApi.LogManager)
: NullSealEngine.Instance;
setInApi.SealValidator = new EthashSealValidator(
getFromApi.LogManager, difficultyCalculator, getFromApi.CryptoRandom, ethash);
return(Task.CompletedTask);
}
