protected override void StartCore(CancellationToken cancellationToken)
{
new Thread(() =>
{
Logs.Client.LogInformation("State machines started");
uint256 lastBlock = uint256.Zero;
int lastCycle = 0;
while (true)
{
try
{
lastBlock = Runtime.Services.BlockExplorerService.WaitBlock(lastBlock, cancellationToken);
var height = Runtime.Services.BlockExplorerService.GetCurrentHeight();
Logs.Client.LogInformation("New Block: " + height);
var cycle = Runtime.TumblerParameters.CycleGenerator.GetRegisteringCycle(height);
if (lastCycle != cycle.Start)
{
lastCycle = cycle.Start;
Logs.Client.LogInformation("New Cycle: " + cycle.Start);
PaymentStateMachine.State state = GetPaymentStateMachineState(cycle);
if (state == null)
{
var stateMachine = new PaymentStateMachine(Runtime, null);
stateMachine.NeedSave = true;
Save(stateMachine, cycle.Start);
}
}
var progressInfo = new ProgressInfo(height);
var cycles = Runtime.TumblerParameters.CycleGenerator.GetCycles(height);
var machineStates = cycles
.SelectMany(c => Runtime.Repository.List <PaymentStateMachine.State>(GetPartitionKey(c.Start)))
.Where(m => m.TumblerParametersHash == _ParametersHash)
.ToArray();
NBitcoin.Utils.Shuffle(machineStates);
bool hadInvalidPhase = false;
if (Runtime.Network != Network.RegTest)
{
//Waiting for the block to propagate to server so invalid-phase happens less often
//This also make the server less overwhelmed by sudden request peak
var waitRandom = TimeSpan.FromSeconds(RandomUtils.GetUInt32() % 120 + 10);
Logs.Client.LogDebug("Waiting " + (int)waitRandom.TotalSeconds + " seconds before updating machine states...");
cancellationToken.WaitHandle.WaitOne(waitRandom);
cancellationToken.ThrowIfCancellationRequested();
}
else
{
// Need to ensure that the rest of the processing only happens after the server
// has definitely recognised that a block has been received. Invalid phase
// errors will result otherwise
Logs.Client.LogDebug("Waiting 2 seconds before updating machine states...");
cancellationToken.WaitHandle.WaitOne(2);
cancellationToken.ThrowIfCancellationRequested();
}
foreach (var state in machineStates)
{
var machine = new PaymentStateMachine(Runtime, state);
if (machine.Status == PaymentStateMachineStatus.Wasted)
{
Logs.Client.LogDebug($"Skipping cycle {machine.StartCycle}, because if is wasted");
continue;
}
var statusBefore = machine.GetInternalState();
try
{
var cycleProgressInfo = machine.Update();
InvalidPhaseCount = 0;
if (cycleProgressInfo != null)
{
progressInfo.CycleProgressInfoList.Add(cycleProgressInfo);
}
}
catch (PrematureRequestException)
{
Logs.Client.LogInformation("Skipping update, need to wait for tor circuit renewal");
break;
}
catch (Exception ex) when(IsInvalidPhase(ex))
{
if (!hadInvalidPhase)
{
hadInvalidPhase = true;
InvalidPhaseCount++;
if (InvalidPhaseCount > 2)
{
Logs.Client.LogError(new EventId(), ex, $"Invalid-Phase happened repeatedly, check that your node currently at height {height} is currently sync to the network");
}
}
}
catch (Exception ex)
{
Logs.Client.LogError(new EventId(), ex, "Unhandled StateMachine Error");
}
Save(machine);
}
progressInfo.Save();
}
catch (OperationCanceledException) when(cancellationToken.IsCancellationRequested)
{
Stopped();
break;
}
catch (Exception ex)
{
Logs.Client.LogError(new EventId(), ex, "StateMachineExecutor Error: " + ex.ToString());
cancellationToken.WaitHandle.WaitOne(5000);
}
}
}).Start();
}
protected override void StartCore(CancellationToken cancellationToken)
{
new Thread(() =>
{
Logs.Client.LogInformation("State machines started");
uint256 lastBlock = uint256.Zero;
int lastCycle = 0;
while (true)
{
Exception unhandled = null;
try
{
lastBlock = Runtime.Services.BlockExplorerService.WaitBlock(lastBlock, cancellationToken);
var height = Runtime.Services.BlockExplorerService.GetCurrentHeight();
Logs.Client.LogInformation("New Block: " + height);
var cycle = Runtime.TumblerParameters.CycleGenerator.GetRegistratingCycle(height);
if (lastCycle != cycle.Start)
{
lastCycle = cycle.Start;
Logs.Client.LogInformation("New Cycle: " + cycle.Start);
var state = Runtime.Repository.Get <PaymentStateMachine.State>(GetPartitionKey(cycle.Start), "");
if (state == null)
{
var stateMachine = new PaymentStateMachine(Runtime, null);
Save(stateMachine, cycle.Start);
}
}
var cycles = Runtime.TumblerParameters.CycleGenerator.GetCycles(height);
foreach (var state in cycles.SelectMany(c => Runtime.Repository.List <PaymentStateMachine.State>(GetPartitionKey(c.Start))))
{
var machine = new PaymentStateMachine(Runtime, state);
try
{
machine.Update();
machine.InvalidPhaseCount = 0;
}
catch (PrematureRequestException)
{
Logs.Client.LogInformation("Skipping update, need to wait for tor circuit renewal");
break;
}
catch (Exception ex)
{
var invalidPhase = ex.Message.IndexOf("invalid-phase", StringComparison.OrdinalIgnoreCase) >= 0;
if (invalidPhase)
{
machine.InvalidPhaseCount++;
}
else
{
machine.InvalidPhaseCount = 0;
}
if (!invalidPhase || machine.InvalidPhaseCount > 2)
{
Logs.Client.LogError("StateMachine Error: " + ex.ToString());
}
}
Save(machine, machine.StartCycle);
}
}
catch (OperationCanceledException ex)
{
if (cancellationToken.IsCancellationRequested)
{
Stopped();
break;
}
else
{
unhandled = ex;
}
}
catch (Exception ex)
{
unhandled = ex;
}
if (unhandled != null)
{
Logs.Client.LogError("StateMachineExecutor Error: " + unhandled.ToString());
cancellationToken.WaitHandle.WaitOne(5000);
}
}
}).Start();
}
protected override void StartCore(CancellationToken cancellationToken)
{
IsTumbling = true;
new Thread(() =>
{
Logs.Client.LogInformation("State machines started");
uint256 lastBlock = uint256.Zero;
int lastCycle = 0;
while (true)
{
try
{
lastBlock = Runtime.Services.BlockExplorerService.WaitBlock(lastBlock, cancellationToken);
var height = Runtime.Services.BlockExplorerService.GetCurrentHeight();
Logs.Client.LogInformation("New Block: " + height);
var cycle = Runtime.TumblerParameters.CycleGenerator.GetRegisteringCycle(height);
if (lastCycle != cycle.Start)
{
// Only start a new cycle if there are sufficient wallet funds
bool firstCycle = ManagedCycles.All(c => c.IsPostRegistration(height));
if (Runtime.HasEnoughFundsForCycle(firstCycle))
{
lastCycle = cycle.Start;
ManagedCycles.Add(cycle);
Logs.Client.LogInformation("New Cycle: {0}", cycle.Start);
PaymentStateMachine.State state = GetPaymentStateMachineState(cycle);
if (state == null)
{
var stateMachine = new PaymentStateMachine(Runtime, null);
stateMachine.NeedSave = true;
Save(stateMachine, cycle.Start);
}
}
else
{
Logs.Client.LogInformation("There are not enough funds to sustain another tumbling cycle.");
}
}
var progressInfo = new ProgressInfo(height, Runtime.DataDir);
var cycles = Runtime.TumblerParameters.CycleGenerator.GetCycles(height);
var machineStates = cycles
.SelectMany(c => Runtime.Repository.List <PaymentStateMachine.State>(GetPartitionKey(c.Start)))
.Where(m => m.TumblerParametersHash == _ParametersHash)
.ToArray();
NBitcoin.Utils.Shuffle(machineStates);
bool hadInvalidPhase = false;
if (Runtime.Network != Network.RegTest)
{
//Waiting for the block to propagate to server so invalid-phase happens less often
//This also make the server less overwhelmed by sudden request peak.
var waitRandom = TimeSpan.FromSeconds(RandomUtils.GetUInt32() % 120 + 10);
Logs.Client.LogDebug("Waiting {0} seconds before updating machine states...", (int)waitRandom.TotalSeconds);
cancellationToken.WaitHandle.WaitOne(waitRandom);
cancellationToken.ThrowIfCancellationRequested();
}
else
{
// Need to ensure that the rest of the processing only happens after the server
// has definitely recognised that a block has been received. Invalid phase
// errors will result otherwise.
Logs.Client.LogDebug("Waiting 2 seconds before updating machine states...");
cancellationToken.WaitHandle.WaitOne(2);
cancellationToken.ThrowIfCancellationRequested();
}
foreach (var state in machineStates)
{
var machine = new PaymentStateMachine(Runtime, state);
if (machine.Status == PaymentStateMachineStatus.Wasted)
{
Logs.Client.LogDebug($"Skipping cycle {machine.StartCycle}, because it is wasted");
continue;
}
var statusBefore = machine.GetInternalState();
try
{
var cycleProgressInfo = machine.Update();
InvalidPhaseCount = 0;
if (cycleProgressInfo != null)
{
progressInfo.CycleProgressInfoList.Add(cycleProgressInfo);
}
}
catch (PrematureRequestException)
{
Logs.Client.LogInformation("Skipping update, need to wait for tor circuit renewal for cycle {0} ({1})", machine.StartCycle, machine.Status);
break;
}
catch (Exception ex) when(IsInvalidPhase(ex))
{
if (!hadInvalidPhase)
{
hadInvalidPhase = true;
InvalidPhaseCount++;
if (InvalidPhaseCount > 2)
{
Logs.Client.LogError(new EventId(), ex, "Invalid-Phase happened repeatedly, check that your node currently " +
"at height {0} is currently sync to the network; cycle {1} ({2})", height, machine.StartCycle, machine.Status);
}
}
}
catch (Exception ex)
{
Logs.Client.LogError(new EventId(), ex, "Unhandled StateMachine Error for cycle {0} ({1})", machine.StartCycle, machine.Status);
}
Save(machine);
}
Logs.Client.LogDebug("Number of running cycles reported to the progress API: {0}", progressInfo.CycleProgressInfoList.Count);
int numberOfCompletedCycles = ManagedCycles.Count(c => c.IsComplete(height));
bool allCyclesAreComplete = !ManagedCycles.Any() || (numberOfCompletedCycles == ManagedCycles.Count);
if (allCyclesAreComplete)
{
Logs.Client.LogInformation("Tumbling finished; all {0} tumbling cycles have been completed", ManagedCycles.Count);
Stop();
break;
}
else
{
Logs.Client.LogDebug("Tumbling running; there are {0} of {1} cycles completed", numberOfCompletedCycles, ManagedCycles.Count);
}
progressInfo.Save();
}
catch (OperationCanceledException) when(cancellationToken.IsCancellationRequested)
{
Logs.Client.LogInformation("Tumbling cancelled; all {0} tumbling cycles have been aborted", ManagedCycles.Count);
Stop();
break;
}
catch (Exception ex)
{
Logs.Client.LogError(new EventId(), ex, "StateMachineExecutor Error: " + ex.ToString());
cancellationToken.WaitHandle.WaitOne(5000);
}
}
IsTumbling = false;
}).Start();
}
private void Save(PaymentStateMachine stateMachine, int cycle)
{
Runtime.Repository.UpdateOrInsert(GetPartitionKey(cycle), "", stateMachine.GetInternalState(), (o, n) => n);
}
protected override void StartCore(CancellationToken cancellationToken)
{
new Thread(() =>
{
Logs.Client.LogInformation("State machines started");
uint256 lastBlock = uint256.Zero;
int lastCycle = 0;
while (true)
{
Exception unhandled = null;
try
{
lastBlock = Runtime.Services.BlockExplorerService.WaitBlock(lastBlock, cancellationToken);
var height = Runtime.Services.BlockExplorerService.GetCurrentHeight();
Logs.Client.LogInformation("New Block: " + height);
var cycle = Runtime.TumblerParameters.CycleGenerator.GetRegistratingCycle(height);
if (lastCycle != cycle.Start)
{
lastCycle = cycle.Start;
Logs.Client.LogInformation("New Cycle: " + cycle.Start);
PaymentStateMachine.State state = GetPaymentStateMachineState(cycle);
if (state == null)
{
var stateMachine = new PaymentStateMachine(Runtime, null);
Save(stateMachine, cycle.Start);
}
}
var cycles = Runtime.TumblerParameters.CycleGenerator.GetCycles(height);
var machineStates = cycles
.SelectMany(c => Runtime.Repository.List <PaymentStateMachine.State>(GetPartitionKey(c.Start)))
.Where(m => m.TumblerParametersHash == _ParametersHash)
.ToArray();
NBitcoin.Utils.Shuffle(machineStates);
bool hadInvalidPhase = false;
//Waiting for the block to propagate to server so invalid-phase happens less often
cancellationToken.WaitHandle.WaitOne(10000);
cancellationToken.ThrowIfCancellationRequested();
foreach (var state in machineStates)
{
bool noSave = false;
var machine = new PaymentStateMachine(Runtime, state);
var statusBefore = machine.GetInternalState();
try
{
machine.Update();
InvalidPhaseCount = 0;
}
catch (PrematureRequestException)
{
Logs.Client.LogInformation("Skipping update, need to wait for tor circuit renewal");
break;
}
catch (Exception ex)
{
var invalidPhase = ex.Message.IndexOf("invalid-phase", StringComparison.OrdinalIgnoreCase) >= 0;
if (invalidPhase)
{
if (!hadInvalidPhase)
{
hadInvalidPhase = true;
InvalidPhaseCount++;
if (InvalidPhaseCount > 2)
{
Logs.Client.LogError(new EventId(), ex, $"Invalid-Phase happened repeatedly, check that your node currently at height {height} is currently sync to the network");
}
}
noSave = true;
}
else
{
Logs.Client.LogError(new EventId(), ex, "Unhandled StateMachine Error");
}
}
if (!noSave)
{
Save(machine, machine.StartCycle);
}
}
}
catch (OperationCanceledException ex)
{
if (cancellationToken.IsCancellationRequested)
{
Stopped();
break;
}
else
{
unhandled = ex;
}
}
catch (Exception ex)
{
unhandled = ex;
}
if (unhandled != null)
{
Logs.Client.LogError("StateMachineExecutor Error: " + unhandled.ToString());
cancellationToken.WaitHandle.WaitOne(5000);
}
}
}).Start();
}
