/// <summary>
/// It is ok to have another thread rerun this method after a halt().
/// </summary>
public void Run()
{
if (Interlocked.Exchange(ref _running, 1) != 0)
{
throw new InvalidOperationException("Thread is already running");
}
_sequenceBarrier.ClearAlert();
NotifyStart();
T evt = null;
var nextSequence = _sequence.Value + 1L;
try
{
while (true)
{
try
{
var availableSequence = _sequenceBarrier.WaitFor(nextSequence);
if (_batchStartAware != null)
{
_batchStartAware.OnBatchStart(availableSequence - nextSequence + 1);
}
while (nextSequence <= availableSequence)
{
evt = _dataProvider[nextSequence];
_eventHandler.OnEvent(evt, nextSequence, nextSequence == availableSequence);
nextSequence++;
}
_sequence.SetValue(availableSequence);
}
catch (TimeoutException)
{
NotifyTimeout(_sequence.Value);
}
catch (AlertException)
{
if (_running == 0)
{
break;
}
}
catch (Exception ex)
{
_exceptionHandler.HandleEventException(ex, nextSequence, evt);
_sequence.SetValue(nextSequence);
nextSequence++;
}
}
}
finally
{
NotifyShutdown();
_running = 0;
}
}
public void OnBatchStart(long batchSize)
{
if (batchSize != 0)
{
_target.OnBatchStart(batchSize);
}
}
public void OnBatchStart(long batchSize)
{
if (_batchStartAware != null && batchSize != 0)
{
_batchStartAware.OnBatchStart(batchSize);
}
}
private void ProcessEvents()
{
TEvent @event = null;
var nextSequence = _sequence.GetValue() + 1L;
while (true)
{
try
{
var availableSequence = _sequenceBarrier.WaitFor(nextSequence);
_batchStartAware?.OnBatchStart(availableSequence - nextSequence + 1);
while (nextSequence <= availableSequence)
{
@event = _dataProvider.Get(nextSequence);
_eventHandler.OnEvent(@event, nextSequence, nextSequence == availableSequence);
nextSequence++;
}
_sequence.SetValue(availableSequence);
}
catch (TimeoutException)
{
NotifyTimeout(_sequence.GetValue());
}
catch (AlertException)
{
if (_running != Running)
{
break;
}
}
catch (Exception e)
{
_exceptionHandler?.HandleEventException(e, nextSequence, @event);
_sequence.SetValue(nextSequence);
nextSequence++;
}
}
}
public void OnBatchStart(long batchSize)
{
_eventHandler?.OnBatchStart(batchSize);
}