private JObject GetCurrentPhase()
{
var attendanceDetectionPhase = _systemContractReader.IsAttendanceDetectionPhase();
var vrfSubmissionPhase = _systemContractReader.IsVrfSubmissionPhase();
var keyGenPhase = _systemContractReader.IsKeyGenPhase();
return(new JObject
{
["AttendanceSubmissionPhase"] = attendanceDetectionPhase,
["VrfSubmissionPhase"] = vrfSubmissionPhase,
["KeyGenPhase"] = keyGenPhase,
});
}
private JObject GetCurrentCycle()
{
var attendanceDetectionPhase = _systemContractReader.IsAttendanceDetectionPhase();
var vrfSubmissionPhase = _systemContractReader.IsVrfSubmissionPhase();
var keyGenPhase = _systemContractReader.IsKeyGenPhase();
var phase = attendanceDetectionPhase ? "AttendanceSubmissionPhase" :
vrfSubmissionPhase ? "VrfSubmissionPhase" :
keyGenPhase ? "KeyGenPhase" : "None";
return(new JObject
{
["currentPeriod"] = phase,
["cycle"] = _blockManager.GetHeight() / StakingContract.CycleDuration,
});
}
private void Run()
{
try
{
const ulong checkInterval = 1000;
var lastCheckedBlockHeight = (ulong)0;
var passingCycle = -1;
Logger.LogInformation($"Validator status manager started, {_withdrawTriggered}, {_stakeSize}, {_stopRequested}");
while (!_withdrawTriggered)
{
if (_stopRequested)
{
break;
}
if (lastCheckedBlockHeight == _stateManager.LastApprovedSnapshot.Blocks.GetTotalBlockHeight() ||
GetCurrentCycle() == passingCycle)
{
Thread.Sleep(TimeSpan.FromMilliseconds(checkInterval));
continue;
}
lastCheckedBlockHeight = _stateManager.LastApprovedSnapshot.Blocks.GetTotalBlockHeight();
Logger.LogInformation($"Check {lastCheckedBlockHeight} height");
if (_sendingTxHash != null)
{
if (_stateManager.LastApprovedSnapshot.Transactions.GetTransactionByHash(_sendingTxHash) ==
null)
{
Logger.LogInformation(
$"Transaction {_sendingTxHash.ToHex()} submitted, waiting for including in block");
Thread.Sleep(TimeSpan.FromMilliseconds(checkInterval));
continue;
}
_sendingTxHash = null;
}
var stake = _systemContractReader.GetStake().ToBigInteger();
Logger.LogInformation($"Stake size is {stake}");
var isStaker = !stake.IsZero;
if (!isStaker)
{
var coverFeesAmount = new BigInteger(10) * BigInteger.Pow(10, 18);
Logger.LogInformation($"Trying to become staker");
var balance =
_stateManager.CurrentSnapshot.Balances.GetBalance(_systemContractReader.NodeAddress());
Logger.LogInformation($"Balance is {balance.ToWei()}");
if (_stakeSize is null)
{
Logger.LogInformation("Stake size is null, cannot become staker");
continue;
}
Logger.LogInformation($"Stake size is {_stakeSize}");
var isEnoughBalance = balance.ToWei() > _stakeSize.Value + coverFeesAmount;
if (isEnoughBalance)
{
var rolls = _stakeSize.Value / StakingContract.TokenUnitsInRoll;
Logger.LogInformation($"Sending transaction to become staker for {rolls} rolls");
BecomeStaker(rolls * StakingContract.TokenUnitsInRoll);
_stakeSize = null;
continue;
}
Logger.LogInformation($"Not enough balance to become staker");
continue;
}
var requestCycle = _systemContractReader.GetWithdrawRequestCycle();
Logger.LogInformation($"Request cycle is {requestCycle}");
if (requestCycle != 0)
{
Logger.LogInformation(
$"Stake withdrawal triggered externally in cycle {requestCycle}. Processing withdrawal...");
_withdrawTriggered = true;
continue;
}
if (_systemContractReader.IsAttendanceDetectionPhase() &&
_systemContractReader.IsPreviousValidator() && !_systemContractReader.IsCheckedIn())
{
Logger.LogInformation(
$"The node is previous validator. Trying to submit attendance detection.");
SubmitAttendanceDetection();
continue;
}
if (_systemContractReader.IsNextValidator())
{
Logger.LogDebug($"The node chosen as next validator. Nothing to do.");
passingCycle = GetCurrentCycle();
continue;
}
if (!_systemContractReader.IsAbleToBeValidator() || !_systemContractReader.IsVrfSubmissionPhase())
{
Logger.LogInformation($"Current submission phase missed. Waiting for the next one.");
passingCycle = GetCurrentCycle();
continue;
}
var(isWinner, proof) = GetVrfProof(stake);
if (isWinner)
{
Logger.LogDebug(
$"The node won the VRF lottery. Submitting transaction to become the next cycle validator");
SubmitVrf(proof);
continue;
}
Logger.LogInformation($"The node didn't win the VRF lottery. Waiting for the next cycle.");
passingCycle = GetCurrentCycle();
}
lastCheckedBlockHeight = 0;
passingCycle = -1;
// Try to withdraw stake
while (!_systemContractReader.GetStake().IsZero())
{
if (_stopRequested)
{
break;
}
if (_sendingTxHash != null)
{
if (_stateManager.LastApprovedSnapshot.Transactions.GetTransactionByHash(_sendingTxHash) ==
null)
{
Logger.LogInformation(
$"Transaction {_sendingTxHash.ToHex()} submitted, waiting for including in block");
Thread.Sleep(TimeSpan.FromMilliseconds(checkInterval));
continue;
}
_sendingTxHash = null;
}
if (lastCheckedBlockHeight == _stateManager.LastApprovedSnapshot.Blocks.GetTotalBlockHeight() ||
GetCurrentCycle() == passingCycle)
{
Thread.Sleep(TimeSpan.FromMilliseconds(checkInterval));
continue;
}
Logger.LogWarning($"Trying to withdraw stake");
lastCheckedBlockHeight = _stateManager.LastApprovedSnapshot.Blocks.GetTotalBlockHeight();
if (_systemContractReader.IsAttendanceDetectionPhase() &&
_systemContractReader.IsPreviousValidator() && !_systemContractReader.IsCheckedIn())
{
Logger.LogInformation(
$"The node is previous validator. Trying to submit attendance detection.");
SubmitAttendanceDetection();
continue;
}
var requestCycle = _systemContractReader.GetWithdrawRequestCycle();
if (requestCycle == 0)
{
if (IsNextValidator())
{
Logger.LogWarning($"Stake reserved for the next cycle. Waiting for the next cycle.");
passingCycle = GetCurrentCycle();
continue;
}
RequestStakeWithdrawal();
passingCycle = GetCurrentCycle();
Logger.LogWarning($"Submitted withdrawal stake request. Waiting for the next cycle.");
continue;
}
if (GetCurrentCycle() <= requestCycle)
{
Logger.LogInformation(
$"Stake withdrawal request in cycle {requestCycle}, current cycle is {GetCurrentCycle()}. " +
$"Waiting for the next cycle to withdraw stake..."
);
passingCycle = GetCurrentCycle();
continue;
}
if (!IsWithdrawalPhase())
{
Logger.LogWarning($"Waiting for withdrawal phase...");
continue;
}
WithdrawStakeTx();
Logger.LogWarning(
$"Stake withdrawal transaction submitted. Waiting for the next block to ensure withdrawal succeeded.");
}
_started = false;
Logger.LogWarning($"Stake withdrawn. Validator status manager stopped.");
}
catch (Exception e)
{
Logger.LogCritical($"Fatal error in validator status manager, exiting: {e}");
Environment.Exit(1);
}
}