private async void Round_StatusChangedAsync(object sender, CoordinatorRoundStatus status)
{
try
{
var round = sender as CoordinatorRound;
Money feePerInputs = null;
Money feePerOutputs = null;
// If success save the coinjoin.
if (status == CoordinatorRoundStatus.Succeded)
{
uint256[] mempoolHashes = null;
try
{
mempoolHashes = await RpcClient.GetRawMempoolAsync().ConfigureAwait(false);
}
catch (Exception ex)
{
Logger.LogError(ex);
}
using (await CoinJoinsLock.LockAsync().ConfigureAwait(false))
{
if (mempoolHashes is { })
{
var fallOuts = UnconfirmedCoinJoins.Where(x => !mempoolHashes.Contains(x));
CoinJoins.RemoveAll(x => fallOuts.Contains(x));
UnconfirmedCoinJoins.RemoveAll(x => fallOuts.Contains(x));
}
uint256 coinJoinHash = round.CoinJoin.GetHash();
CoinJoins.Add(coinJoinHash);
UnconfirmedCoinJoins.Add(coinJoinHash);
LastSuccessfulCoinJoinTime = DateTimeOffset.UtcNow;
await File.AppendAllLinesAsync(CoinJoinsFilePath, new[] { coinJoinHash.ToString() }).ConfigureAwait(false);
// When a round succeeded, adjust the denomination as to users still be able to register with the latest round's active output amount.
IEnumerable <(Money value, int count)> outputs = round.CoinJoin.GetIndistinguishableOutputs(includeSingle: true);
var bestOutput = outputs.OrderByDescending(x => x.count).FirstOrDefault();
if (bestOutput != default)
{
Money activeOutputAmount = bestOutput.value;
int currentConfirmationTarget = await AdjustConfirmationTargetAsync(lockCoinJoins : false).ConfigureAwait(false);
var fees = await CoordinatorRound.CalculateFeesAsync(RpcClient, currentConfirmationTarget).ConfigureAwait(false);
feePerInputs = fees.feePerInputs;
feePerOutputs = fees.feePerOutputs;
Money newDenominationToGetInWithactiveOutputs = activeOutputAmount - (feePerInputs + (2 * feePerOutputs));
if (newDenominationToGetInWithactiveOutputs < RoundConfig.Denomination)
{
if (newDenominationToGetInWithactiveOutputs > Money.Coins(0.01m))
{
RoundConfig.Denomination = newDenominationToGetInWithactiveOutputs;
RoundConfig.ToFile();
}
}
}
}
private async void Round_StatusChangedAsync(object sender, CoordinatorRoundStatus status)
{
try
{
var round = sender as CoordinatorRound;
Money feePerInputs = null;
Money feePerOutputs = null;
// If success save the coinjoin.
if (status == CoordinatorRoundStatus.Succeded)
{
using (await CoinJoinsLock.LockAsync().ConfigureAwait(false))
{
uint256 coinJoinHash = round.CoinJoin.GetHash();
CoinJoins.Add(coinJoinHash);
UnconfirmedCoinJoins.Add(coinJoinHash);
LastSuccessfulCoinJoinTime = DateTimeOffset.UtcNow;
await File.AppendAllLinesAsync(CoinJoinsFilePath, new[] { coinJoinHash.ToString() }).ConfigureAwait(false);
// When a round succeeded, adjust the denomination as to users still be able to register with the latest round's active output amount.
IEnumerable <(Money value, int count)> outputs = round.CoinJoin.GetIndistinguishableOutputs(includeSingle: true);
var bestOutput = outputs.OrderByDescending(x => x.count).FirstOrDefault();
if (bestOutput != default)
{
Money activeOutputAmount = bestOutput.value;
int currentConfirmationTarget = await AdjustConfirmationTargetAsync(lockCoinJoins : false).ConfigureAwait(false);
var fees = await CoordinatorRound.CalculateFeesAsync(RpcClient, currentConfirmationTarget).ConfigureAwait(false);
feePerInputs = fees.feePerInputs;
feePerOutputs = fees.feePerOutputs;
Money newDenominationToGetInWithactiveOutputs = activeOutputAmount - (feePerInputs + (2 * feePerOutputs));
if (newDenominationToGetInWithactiveOutputs < RoundConfig.Denomination)
{
if (newDenominationToGetInWithactiveOutputs > Money.Coins(0.01m))
{
RoundConfig.Denomination = newDenominationToGetInWithactiveOutputs;
RoundConfig.ToFile();
}
}
}
}
}
// If aborted in signing phase, then ban Alices that did not sign.
if (status == CoordinatorRoundStatus.Aborted && round.Phase == RoundPhase.Signing)
{
IEnumerable <Alice> alicesDidntSign = round.GetAlicesByNot(AliceState.SignedCoinJoin, syncLock: false);
CoordinatorRound nextRound = GetCurrentInputRegisterableRoundOrDefault(syncLock: false);
if (nextRound != null)
{
int nextRoundAlicesCount = nextRound.CountAlices(syncLock: false);
var alicesSignedCount = round.AnonymitySet - alicesDidntSign.Count();
// New round's anonset should be the number of alices that signed in this round.
// Except if the number of alices in the next round is already larger.
var newAnonymitySet = Math.Max(alicesSignedCount, nextRoundAlicesCount);
// But it cannot be larger than the current anonset of that round.
newAnonymitySet = Math.Min(newAnonymitySet, nextRound.AnonymitySet);
// Only change the anonymity set of the next round if new anonset does not equal and newanonset is larger than 1.
if (nextRound.AnonymitySet != newAnonymitySet && newAnonymitySet > 1)
{
nextRound.UpdateAnonymitySet(newAnonymitySet, syncLock: false);
if (nextRoundAlicesCount >= nextRound.AnonymitySet)
{
// Progress to the next phase, which will be OutputRegistration
await nextRound.ExecuteNextPhaseAsync(RoundPhase.ConnectionConfirmation).ConfigureAwait(false);
}
}
}
foreach (Alice alice in alicesDidntSign) // Because the event sometimes is raised from inside the lock.
{
// If it is from any coinjoin, then do not ban.
IEnumerable <OutPoint> utxosToBan = alice.Inputs.Select(x => x.Outpoint);
await UtxoReferee.BanUtxosAsync(1, DateTimeOffset.UtcNow, forceNoted : false, round.RoundId, utxosToBan.ToArray()).ConfigureAwait(false);
}
}
// If finished start a new round.
if (status == CoordinatorRoundStatus.Aborted || status == CoordinatorRoundStatus.Succeded)
{
round.StatusChanged -= Round_StatusChangedAsync;
round.CoinJoinBroadcasted -= Round_CoinJoinBroadcasted;
await MakeSureTwoRunningRoundsAsync(feePerInputs, feePerOutputs).ConfigureAwait(false);
}
}
catch (Exception ex)
{
Logger.LogWarning(ex);
}
}