public ConsensusFeature(
DBreezeCoinView dBreezeCoinView,
Network network,
PowConsensusValidator consensusValidator,
ConcurrentChain chain,
LookaheadBlockPuller blockPuller,
CoinView coinView,
ChainBehavior.ChainState chainState,
ConnectionManager connectionManager,
CancellationProvider globalCancellation,
Signals signals,
ConsensusLoop consensusLoop,
NodeSettings nodeSettings,
StakeChainStore stakeChain = null)
{
this.dBreezeCoinView = dBreezeCoinView;
this.consensusValidator = consensusValidator;
this.chain = chain;
this.blockPuller = blockPuller;
this.coinView = coinView;
this.chainState = chainState;
this.connectionManager = connectionManager;
this.globalCancellation = globalCancellation;
this.signals = signals;
this.network = network;
this.consensusLoop = consensusLoop;
this.nodeSettings = nodeSettings;
this.stakeChain = stakeChain;
}
public ConsensusFeature(
DBreezeCoinView dBreezeCoinView,
Network network,
PowConsensusValidator consensusValidator,
ConcurrentChain chain,
LookaheadBlockPuller blockPuller,
CoinView coinView,
ChainBehavior.ChainState chainState,
IConnectionManager connectionManager,
INodeLifetime nodeLifetime,
Signals signals,
ConsensusLoop consensusLoop,
NodeSettings nodeSettings,
NodeDeployments nodeDeployments,
StakeChainStore stakeChain = null)
{
this.dBreezeCoinView = dBreezeCoinView;
this.consensusValidator = consensusValidator;
this.chain = chain;
this.blockPuller = blockPuller;
this.coinView = coinView;
this.chainState = chainState;
this.connectionManager = connectionManager;
this.nodeLifetime = nodeLifetime;
this.signals = signals;
this.network = network;
this.consensusLoop = consensusLoop;
this.nodeSettings = nodeSettings;
this.nodeDeployments = nodeDeployments;
this.stakeChain = stakeChain;
}
public CachedCoinView(DBreezeCoinView inner)
{
Guard.NotNull(inner, nameof(inner));
_Inner = inner;
MaxItems = 100000;
}
public StakeValidator(Network network,
StakeChain stakeChain, ConcurrentChain chain, CoinView coinView)
{
this.network = network;
this.stakeChain = stakeChain;
this.chain = chain;
this.coinView = coinView;
this.consensusOptions = network.Consensus.Option <PosConsensusOptions>();
}
public CoinViewStack(CoinView top)
{
Top = top;
var current = top;
while (current is IBackedCoinView)
{
current = ((IBackedCoinView)current).Inner;
}
Bottom = current;
}
/// <summary>
/// This is used for testing the coin view
/// it allows a coinview that only has in memory entries
/// </summary>
public CachedCoinView(InMemoryCoinView inner, StakeChainStore stakeChainStore = null)
{
Guard.NotNull(inner, nameof(inner));
this.inner = inner;
this.stakeChainStore = stakeChainStore;
this.MaxItems = 100000;
this.lockobj = new ReaderWriterLock();
this.unspents = new Dictionary <uint256, CacheItem>();
this.PerformanceCounter = new CachePerformanceCounter();
}
public ConsensusLoop(ConsensusValidator validator, ConcurrentChain chain, CoinView utxoSet, LookaheadBlockPuller puller)
{
Guard.NotNull(validator, nameof(validator));
Guard.NotNull(chain, nameof(chain));
Guard.NotNull(utxoSet, nameof(utxoSet));
Guard.NotNull(puller, nameof(puller));
_Validator = validator;
_Chain = chain;
_utxoSet = utxoSet;
_Puller = puller;
}
public PosConsensusValidator(StakeValidator stakeValidator, Network network,
StakeChain stakeChain, ConcurrentChain chain, CoinView coinView)
: base(network)
{
Guard.NotNull(network.Consensus.Option <PosConsensusOptions>(), nameof(network.Consensus.Options));
this.stakeValidator = stakeValidator;
this.stakeChain = stakeChain;
this.chain = chain;
this.coinView = coinView;
this.consensusOptions = network.Consensus.Option <PosConsensusOptions>();
}
public ConsensusLoop(PowConsensusValidator validator, ConcurrentChain chain, CoinView utxoSet, LookaheadBlockPuller puller, StakeChain stakeChain = null)
{
Guard.NotNull(validator, nameof(validator));
Guard.NotNull(chain, nameof(chain));
Guard.NotNull(utxoSet, nameof(utxoSet));
Guard.NotNull(puller, nameof(puller));
this.Validator = validator;
this.Chain = chain;
this.UTXOSet = utxoSet;
this.Puller = puller;
// chain of stake info can be null if POS is not enabled
this.StakeChain = stakeChain;
}
public ConsensusStats(CoinViewStack stack, CoinView coinView, ConsensusLoop consensusLoop, ChainBehavior.ChainState chainState, ConcurrentChain chain, IConnectionManager connectionManager)
{
stack = new CoinViewStack(coinView);
this.cache = stack.Find <CachedCoinView>();
this.dbreeze = stack.Find <DBreezeCoinView>();
this.bottom = stack.Bottom;
this.consensusLoop = consensusLoop;
this.lookaheadPuller = this.consensusLoop.Puller as LookaheadBlockPuller;
this.lastSnapshot = consensusLoop.Validator.PerformanceCounter.Snapshot();
this.lastSnapshot2 = this.dbreeze?.PerformanceCounter.Snapshot();
this.lastSnapshot3 = this.cache?.PerformanceCounter.Snapshot();
this.chainState = chainState;
this.chain = chain;
this.connectionManager = connectionManager;
}
public IEnumerable <UnspentOutputs> GetCoins(CoinView utxo)
{
return(this._Unspents.Select(u => u.Value).ToList());
}
// ppcoin: total coin age spent in transaction, in the unit of coin-days.
// Only those coins meeting minimum age requirement counts. As those
// transactions not in main chain are not currently indexed so we
// might not find out about their coin age. Older transactions are
// guaranteed to be in main chain by sync-checkpoint. This rule is
// introduced to help nodes establish a consistent view of the coin
// age (trust score) of competing branches.
public bool GetCoinAge(ConcurrentChain chain, CoinView coinView,
Transaction trx, ChainedBlock pindexPrev, out ulong nCoinAge)
{
BigInteger bnCentSecond = BigInteger.Zero; // coin age in the unit of cent-seconds
nCoinAge = 0;
if (trx.IsCoinBase)
{
return(true);
}
foreach (var txin in trx.Inputs)
{
var coins = coinView.FetchCoinsAsync(new[] { txin.PrevOut.Hash }).GetAwaiter().GetResult();
if (coins == null || coins.UnspentOutputs.Length != 1)
{
continue;
}
var prevBlock = chain.GetBlock(coins.BlockHash);
var prevUtxo = coins.UnspentOutputs[0];
// First try finding the previous transaction in database
//Transaction txPrev = trasnactionStore.Get(txin.PrevOut.Hash);
//if (txPrev == null)
// continue; // previous transaction not in main chain
if (trx.Time < prevUtxo.Time)
{
return(false); // Transaction timestamp violation
}
if (IsProtocolV3((int)trx.Time))
{
if (IsConfirmedInNPrevBlocks(prevUtxo, pindexPrev, this.consensusOptions.StakeMinConfirmations - 1))
{
//LogPrint("coinage", "coin age skip nSpendDepth=%d\n", nSpendDepth + 1);
continue; // only count coins meeting min confirmations requirement
}
}
else
{
// Read block header
//var block = blockStore.GetBlock(txPrev.GetHash());
//if (block == null)
// return false; // unable to read block of previous transaction
if (prevBlock.Header.Time + this.consensusOptions.StakeMinAge > trx.Time)
{
continue; // only count coins meeting min age requirement
}
}
long nValueIn = prevUtxo._Outputs[txin.PrevOut.N].Value;
var multiplier = BigInteger.ValueOf((trx.Time - prevUtxo.Time) / Money.CENT);
bnCentSecond = bnCentSecond.Add(BigInteger.ValueOf(nValueIn).Multiply(multiplier));
//bnCentSecond += new BigInteger(nValueIn) * (trx.Time - txPrev.Time) / CENT;
//LogPrint("coinage", "coin age nValueIn=%d nTimeDiff=%d bnCentSecond=%s\n", nValueIn, nTime - txPrev.nTime, bnCentSecond.ToString());
}
BigInteger bnCoinDay = bnCentSecond.Multiply(BigInteger.ValueOf(Money.CENT / Money.COIN / (24 * 60 * 60)));
//BigInteger bnCoinDay = bnCentSecond * CENT / COIN / (24 * 60 * 60);
//LogPrint("coinage", "coin age bnCoinDay=%s\n", bnCoinDay.ToString());
nCoinAge = new Target(bnCoinDay).ToCompact();
return(true);
}