public OneToThreeSequencedThroughputTest()
: base(Test_Disruptor, ITERATIONS, 7)
{
ThreadPool.SetMaxThreads(NUM_EVENT_PROCESSORS, NUM_EVENT_PROCESSORS);
for (long i = 0; i < ITERATIONS; i++)
{
results[0] = Operation.Addition.Op(results[0], i);
results[1] = Operation.Substraction.Op(results[1], i);
results[2] = Operation.And.Op(results[2], i);
}
sequenceBarrier = ringBuffer.NewBarrier();
handlers[0] = new ValueMutationEventHandler_v3(Operation.Addition);
handlers[1] = new ValueMutationEventHandler_v3(Operation.Substraction);
handlers[2] = new ValueMutationEventHandler_v3(Operation.And);
batchEventProcessors[0] = new BatchEventProcessor <ValueEvent>(ringBuffer, sequenceBarrier, handlers[0]);
batchEventProcessors[1] = new BatchEventProcessor <ValueEvent>(ringBuffer, sequenceBarrier, handlers[1]);
batchEventProcessors[2] = new BatchEventProcessor <ValueEvent>(ringBuffer, sequenceBarrier, handlers[2]);
ringBuffer.AddGatingSequences(
batchEventProcessors[0].Sequence,
batchEventProcessors[1].Sequence,
batchEventProcessors[2].Sequence);
}
/// <summary>
/// <see cref="IWaitStrategy.WaitFor"/>
/// </summary>
public long WaitFor(long sequence, Sequence cursor, ISequence dependentSequence, ISequenceBarrier barrier)
{
long startTime = 0;
int counter = _spinTries;
do
{
long availableSequence;
if ((availableSequence = dependentSequence.Value) >= sequence)
return availableSequence;
if (0 == --counter)
{
if (0 == startTime)
{
startTime = GetSystemTimeTicks();
}
else
{
var timeDelta = GetSystemTimeTicks() - startTime;
if (timeDelta > _yieldTimeoutTicks)
{
return _fallbackStrategy.WaitFor(sequence, cursor, dependentSequence, barrier);
}
if (timeDelta > _spinTimeoutTicks)
{
Thread.Yield();
}
}
counter = _spinTries;
}
}
while (true);
}
/// <summary>
/// <see cref="IWaitStrategy.WaitFor"/>
/// </summary>
public long WaitFor(long sequence, Sequence cursor, ISequence dependentSequence, ISequenceBarrier barrier)
{
var timeSpan = _timeout;
if (cursor.Value < sequence)
{
lock (_gate)
{
while (cursor.Value < sequence)
{
barrier.CheckAlert();
if (!Monitor.Wait(_gate, timeSpan))
{
throw TimeoutException.Instance;
}
}
}
}
long availableSequence;
while ((availableSequence = dependentSequence.Value) < sequence)
{
barrier.CheckAlert();
}
return availableSequence;
}
/// <summary>
/// Wait for the given sequence to be available
/// </summary>
/// <param name="sequence">sequence to be waited on.</param>
/// <param name="cursor">Ring buffer cursor on which to wait.</param>
/// <param name="dependents">dependents further back the chain that must advance first</param>
/// <param name="barrier">barrier the <see cref="IEventProcessor"/> is waiting on.</param>
/// <returns>the sequence that is available which may be greater than the requested sequence.</returns>
public long WaitFor(long sequence, Sequence cursor, Sequence[] dependents, ISequenceBarrier barrier)
{
var availableSequence = cursor.Value; // volatile read
if (availableSequence < sequence)
{
Monitor.Enter(_gate);
try
{
while ((availableSequence = cursor.Value) < sequence) // volatile read
{
barrier.CheckAlert();
Monitor.Wait(_gate);
}
}
finally
{
Monitor.Exit(_gate);
}
}
if (dependents.Length != 0)
{
while ((availableSequence = Util.GetMinimumSequence(dependents)) < sequence)
{
barrier.CheckAlert();
}
}
return availableSequence;
}
/// <summary>
/// Wait for the given sequence to be available
/// </summary>
/// <param name="sequence">sequence to be waited on.</param>
/// <param name="cursor">Ring buffer cursor on which to wait.</param>
/// <param name="dependents">dependents further back the chain that must advance first</param>
/// <param name="barrier">barrier the <see cref="IEventProcessor"/> is waiting on.</param>
/// <returns>the sequence that is available which may be greater than the requested sequence.</returns>
public long WaitFor(long sequence, Sequence cursor, Sequence[] dependents, ISequenceBarrier barrier)
{
long availableSequence;
var spinWait = default(SpinWait);
if (dependents.Length == 0)
{
while ((availableSequence = cursor.Value) < sequence) // volatile read
{
barrier.CheckAlert();
spinWait.SpinOnce();
if (spinWait.Count > 5000)
break;
}
}
else
{
while ((availableSequence = Util.GetMinimumSequence(dependents)) < sequence)
{
barrier.CheckAlert();
spinWait.SpinOnce();
if (spinWait.Count > 5000)
break;
}
}
return availableSequence;
}
public Lite_Timeout_Blocking_Wait_Strategy_Test()
{
_barrier = new DummySequenceBarrier();
_strategy = new LiteTimeoutBlockingWaitStrategy(TimeoutMilliseconds);
_cursor = new Sequence(5);
_dependent = _cursor;
}
/// <summary>
/// <see cref="IWaitStrategy.WaitFor"/>.
/// </summary>
public long WaitFor(long sequence, Sequence cursor, ISequence dependentSequence, ISequenceBarrier barrier)
{
var milliseconds = _timeoutInMilliseconds;
long availableSequence;
if (cursor.Value < sequence)
{
lock (_lock)
{
while (cursor.Value < sequence)
{
Interlocked.Exchange(ref _signalNeeded, 1);
barrier.CheckAlert();
if (!Monitor.Wait(_lock, milliseconds))
{
throw TimeoutException.Instance;
}
}
}
}
while ((availableSequence = dependentSequence.Value) < sequence)
{
barrier.CheckAlert();
}
return availableSequence;
}
/// <summary>
/// Wait for the given sequence to be available
/// </summary>
/// <param name="sequence">sequence to be waited on.</param>
/// <param name="cursor">Ring buffer cursor on which to wait.</param>
/// <param name="dependents">dependents further back the chain that must advance first</param>
/// <param name="barrier">barrier the <see cref="IEventProcessor"/> is waiting on.</param>
/// <returns>the sequence that is available which may be greater than the requested sequence.</returns>
public long WaitFor(long sequence, Sequence cursor, Sequence[] dependents, ISequenceBarrier barrier)
{
long availableSequence;
var spinWait = default(SpinWait);
if (dependents.Length == 0)
{
while ((availableSequence = cursor.Value) < sequence) // volatile read
{
barrier.CheckAlert();
spinWait.SpinOnce();
if (spinWait.Count > 5000)
{
break;
}
}
}
else
{
while ((availableSequence = Util.GetMinimumSequence(dependents)) < sequence)
{
barrier.CheckAlert();
spinWait.SpinOnce();
if (spinWait.Count > 5000)
{
break;
}
}
}
return(availableSequence);
}
public long WaitOnLock(long sequence,
Sequence cursorSequence,
Sequence dependentSequence, ISequenceBarrier barrier, TimeSpan timeOut)
{
var availableSequence = cursorSequence.Value; // volatile read
if (availableSequence < sequence)
{
Monitor.Enter(_gate);
try
{
++_numWaiters;
while ((availableSequence = cursorSequence.Value) < sequence) // volatile read
{
barrier.CheckAlert();
Monitor.Wait(_gate, timeOut);
}
}
finally
{
--_numWaiters;
Monitor.Exit(_gate);
}
}
while ((availableSequence = dependentSequence.Value) < sequence)
{
barrier.CheckAlert();
}
return(availableSequence);
}
/// <summary>
/// Construct a <see cref="IBatchEventProcessor{TEvent}"/> that will automatically track the progress by updating its sequence when the <see cref="IEventHandler{TEvent}.OnEvent(TEvent,long,bool)"/> method returns.
/// </summary>
/// <param name="dataProvider">to which events are published.</param>
/// <param name="sequenceBarrier">on which it is waiting.</param>
/// <param name="eventHandler">is the delegate to which events are dispatched.</param>
public BatchEventProcessor(
IDataProvider <TEvent> dataProvider,
ISequenceBarrier sequenceBarrier,
IEventHandler <TEvent> eventHandler)
: this(dataProvider, sequenceBarrier, eventHandler, null)
{
}
public void SetUp()
{
_ringBuffer = ValueRingBuffer <StubValueEvent> .CreateMultiProducer(() => new StubValueEvent(-1), 32);
_sequenceBarrier = _ringBuffer.NewBarrier();
_ringBuffer.AddGatingSequences(new NoOpEventProcessor <StubValueEvent>(_ringBuffer).Sequence);
}
internal EventHandlerGroup <T> CreateEventProcessors(IEventProcessor[] barrierEventProcessors,
IEventHandler <T>[] eventHandlers, long startSequence = Sequencer.InitialCursorValue)
{
CheckNotStarted();
var createdEventProcessors = new IEventProcessor[eventHandlers.Length];
ISequenceBarrier barrier = _ringBuffer.NewBarrier(Util.GetSequencesFor(barrierEventProcessors));
for (int i = 0; i < eventHandlers.Length; i++)
{
var eventHandler = eventHandlers[i];
var batchEventProcessor = new BatchEventProcessor <T>(_ringBuffer, barrier, eventHandler, startSequence);
if (_exceptionHandler != null)
{
batchEventProcessor.SetExceptionHandler(_exceptionHandler);
}
_eventProcessorRepository.Add(batchEventProcessor, eventHandler, barrier);
createdEventProcessors[i] = batchEventProcessor;
}
if (createdEventProcessors.Length > 0)
{
_eventProcessorRepository.UnmarkEventProcessorsAsEndOfChain(barrierEventProcessors);
}
return(new EventHandlerGroup <T>(this, _eventProcessorRepository, createdEventProcessors));
}
/// <summary>
/// Wait for the given sequence to be available with a timeout specified.
/// </summary>
/// <param name="sequence">sequence to be waited on.</param>
/// <param name="cursor">cursor on which to wait.</param>
/// <param name="dependents">dependents further back the chain that must advance first</param>
/// <param name="barrier">barrier the processor is waiting on.</param>
/// <param name="timeout">timeout value to abort after.</param>
/// <returns>the sequence that is available which may be greater than the requested sequence.</returns>
/// <exception cref="AlertException">AlertException if the status of the Disruptor has changed.</exception>
public long WaitFor(long sequence, Sequence cursor, Sequence[] dependents, ISequenceBarrier barrier, TimeSpan timeout)
{
long availableSequence;
var spinWait = new SpinWait();
var sw = Stopwatch.StartNew();
if (dependents.Length == 0)
{
while ((availableSequence = cursor.Value) < sequence) // volatile read
{
barrier.CheckAlert();
spinWait.SpinOnce();
if (sw.Elapsed > timeout)
{
break;
}
}
}
else
{
while ((availableSequence = Util.GetMinimumSequence(dependents)) < sequence)
{
barrier.CheckAlert();
spinWait.SpinOnce();
if (sw.Elapsed > timeout)
{
break;
}
}
}
return(availableSequence);
}
/// <summary>
/// Wait for the given sequence to be available with a timeout specified.
/// </summary>
/// <param name="sequence">sequence to be waited on.</param>
/// <param name="cursor">cursor on which to wait.</param>
/// <param name="dependents">dependents further back the chain that must advance first</param>
/// <param name="barrier">barrier the processor is waiting on.</param>
/// <param name="timeout">timeout value to abort after.</param>
/// <returns>the sequence that is available which may be greater than the requested sequence.</returns>
/// <exception cref="AlertException">AlertException if the status of the Disruptor has changed.</exception>
public long WaitFor(long sequence, Sequence cursor, Sequence[] dependents, ISequenceBarrier barrier, TimeSpan timeout)
{
long availableSequence;
var counter = 0;
var sw = Stopwatch.StartNew();
if (dependents.Length == 0)
{
while ((availableSequence = cursor.Value) < sequence) // volatile read
{
counter = ApplyWaitMethod(barrier, counter);
if (sw.Elapsed > timeout)
{
break;
}
}
}
else
{
while ((availableSequence = Util.GetMinimumSequence(dependents)) < sequence)
{
counter = ApplyWaitMethod(barrier, counter);
if (sw.Elapsed > timeout)
{
break;
}
}
}
return availableSequence;
}
public override long waitFor(long sequence, Sequence cursor, Sequence[] dependents, ISequenceBarrier barrier)
{
long availableSequence;
if ((availableSequence = cursor.get()) < sequence)
{
lock (_lock)
{
try
{
++numWaiters;
while ((availableSequence = cursor.get()) < sequence)
{
barrier.checkAlert();
Monitor.Wait(_lock);
}
}
finally
{
--numWaiters;
}
}
}
if (0 != dependents.Length)
{
while ((availableSequence = Util.getMinimumSequence(dependents)) < sequence)
{
barrier.checkAlert();
}
}
return availableSequence;
}
public long WaitFor(
long sequence,
ISequence cursor,
ISequence dependentSequence,
ISequenceBarrier barrier)
{
var timeoutInMillis = _timeoutInMillis;
if (cursor.GetValue() < sequence)
{
lock (_mutex)
{
while (cursor.GetValue() < sequence)
{
barrier.CheckAlert();
if (!Monitor.Wait(_mutex, timeoutInMillis))
{
throw new TimeoutException();
}
}
}
}
long availableSequence;
while ((availableSequence = dependentSequence.GetValue()) < sequence)
{
barrier.CheckAlert();
}
return(availableSequence);
}
/// <summary>
/// Wait for the given sequence to be available with a timeout specified.
/// </summary>
/// <param name="sequence">sequence to be waited on.</param>
/// <param name="cursor">cursor on which to wait.</param>
/// <param name="dependents">dependents further back the chain that must advance first</param>
/// <param name="barrier">barrier the processor is waiting on.</param>
/// <param name="timeout">timeout value to abort after.</param>
/// <returns>the sequence that is available which may be greater than the requested sequence.</returns>
/// <exception cref="AlertException">AlertException if the status of the Disruptor has changed.</exception>
public long WaitFor(long sequence, Sequence cursor, Sequence[] dependents, ISequenceBarrier barrier,
TimeSpan timeout)
{
long availableSequence;
if ((availableSequence = cursor.Value) < sequence)
{
Monitor.Enter(_gate);
try
{
while ((availableSequence = cursor.Value) < sequence)
{
barrier.CheckAlert();
if (!Monitor.Wait(_gate, timeout))
{
break;
}
}
}
finally
{
Monitor.Exit(_gate);
}
}
if (dependents.Length != 0)
{
while ((availableSequence = Util.GetMinimumSequence(dependents)) < sequence)
{
barrier.CheckAlert();
}
}
return availableSequence;
}
public Ring_Buffer_Test()
{
_ringBuffer = RingBuffer <StubEvent> .CreateMultiProducer(StubEvent.EventFactory, 32);
_barrier = _ringBuffer.NewBarrier();
_ringBuffer.AddGatingSequences(new NoOpEventProcessor <StubEvent>(_ringBuffer).GetSequence());
}
public EventProcessorInfo(IEventProcessor eventProcessor, object eventHandler, ISequenceBarrier barrier)
{
EventProcessor = eventProcessor;
Handler = eventHandler;
Barrier = barrier;
IsEndOfChain = true;
}
public Batch_Event_Processor_Test(ObjectContainerFixture provider)
{
_ringBuffer = RingBuffer <StubEvent> .CreateMultiProducer(StubEvent.EventFactory, 16);
_barrier = _ringBuffer.NewBarrier();
_exceptionHandler = provider.Services.GetService <IExceptionHandler <StubEvent> >();
}
public TimeoutBlockingWaitStrategyTest()
{
_barrier = new DummySequenceBarrier();
_strategy = new TimeoutBlockingWaitStrategy(TimeoutMilliseconds);
_cursor = new Sequence(5);
_dependent = _cursor;
}
public OneToThreeSequencedThroughputTest()
: base(Test_Disruptor, ITERATIONS,7)
{
ThreadPool.SetMaxThreads(NUM_EVENT_PROCESSORS,NUM_EVENT_PROCESSORS);
for (long i = 0; i < ITERATIONS; i++)
{
results[0] = Operation.Addition.Op(results[0], i);
results[1] = Operation.Substraction.Op(results[1], i);
results[2] = Operation.And.Op(results[2], i);
}
sequenceBarrier = ringBuffer.NewBarrier();
handlers[0] = new ValueMutationEventHandler_v3(Operation.Addition);
handlers[1] = new ValueMutationEventHandler_v3(Operation.Substraction);
handlers[2] = new ValueMutationEventHandler_v3(Operation.And);
batchEventProcessors[0] = new BatchEventProcessor<ValueEvent>(ringBuffer, sequenceBarrier, handlers[0]);
batchEventProcessors[1] = new BatchEventProcessor<ValueEvent>(ringBuffer, sequenceBarrier, handlers[1]);
batchEventProcessors[2] = new BatchEventProcessor<ValueEvent>(ringBuffer, sequenceBarrier, handlers[2]);
ringBuffer.AddGatingSequences(
batchEventProcessors[0].Sequence,
batchEventProcessors[1].Sequence,
batchEventProcessors[2].Sequence);
}
/// <summary>
/// Wait for the given sequence to be available with a timeout specified.
/// </summary>
/// <param name="sequence">sequence to be waited on.</param>
/// <param name="cursor">cursor on which to wait.</param>
/// <param name="dependents">dependents further back the chain that must advance first</param>
/// <param name="barrier">barrier the processor is waiting on.</param>
/// <param name="timeout">timeout value to abort after.</param>
/// <returns>the sequence that is available which may be greater than the requested sequence.</returns>
/// <exception cref="AlertException">AlertException if the status of the Disruptor has changed.</exception>
public long WaitFor(long sequence, Sequence cursor, Sequence[] dependents, ISequenceBarrier barrier, TimeSpan timeout)
{
long availableSequence;
var counter = SpinTries;
var sw = Stopwatch.StartNew();
if (dependents.Length == 0)
{
while ((availableSequence = cursor.Value) < sequence) // volatile read
{
counter = ApplyWaitMethod(barrier, counter);
if (sw.Elapsed > timeout)
{
break;
}
}
}
else
{
while ((availableSequence = Util.GetMinimumSequence(dependents)) < sequence)
{
counter = ApplyWaitMethod(barrier, counter);
if (sw.Elapsed > timeout)
{
break;
}
}
}
return(availableSequence);
}
/// <summary>
/// Construct a <see cref="WorkProcessor{T}"/>.
/// </summary>
/// <param name="ringBuffer">to which events are published.</param>
/// <param name="barrier">on which it is waiting.</param>
/// <param name="workHandler">is the delegate to which events are dispatched.</param>
/// <param name="exceptionHandler">to be called back when an error occurs.</param>
/// <param name="workSequence">from which to claim the next event to be worked on. It should always be initialised <see cref="Sequence.InitialValue"/></param>
public WorkProcessor(
RingBuffer <T> ringBuffer,
ISequenceBarrier barrier,
IWorkHandler <T> workHandler,
IExceptionHandler <T> exceptionHandler,
ISequence workSequence)
{
_ringBuffer = ringBuffer;
_barrier = barrier;
_workHandler = workHandler;
_exceptionHandler = exceptionHandler;
_workSequence = workSequence;
_sequence = new Sequence();
if (_workHandler is ITimeoutHandler timeoutHandler)
{
_timeoutHandler = timeoutHandler;
}
if (_workHandler is ILifecycleAware lifecycleAware)
{
_lifecycleAware = lifecycleAware;
}
if (_workHandler is IEventReleaseAware eventReleaseAware)
{
_eventReleaser = new EventReleaser(_sequence);
eventReleaseAware.SetEventReleaser(_eventReleaser);
}
}
public EventProcessorInfo(IEventProcessor eventProcessor, IEventHandler <T> eventHandler, ISequenceBarrier sequenceBarrier)
{
EventProcessor = eventProcessor;
EventHandler = eventHandler;
SequenceBarrier = sequenceBarrier;
IsEndOfChain = true;
}
/// <summary>
/// Wait for the given sequence to be available
/// </summary>
/// <param name="sequence">sequence to be waited on.</param>
/// <param name="cursor">Ring buffer cursor on which to wait.</param>
/// <param name="dependents">dependents further back the chain that must advance first</param>
/// <param name="barrier">barrier the <see cref="IEventProcessor"/> is waiting on.</param>
/// <returns>the sequence that is available which may be greater than the requested sequence.</returns>
public long WaitFor(long sequence, Sequence cursor, Sequence[] dependents, ISequenceBarrier barrier)
{
var availableSequence = cursor.Value; // volatile read
if (availableSequence < sequence)
{
Monitor.Enter(_gate);
try
{
++_numWaiters;
while ((availableSequence = cursor.Value) < sequence) // volatile read
{
barrier.CheckAlert();
Monitor.Wait(_gate);
}
}
finally
{
--_numWaiters;
Monitor.Exit(_gate);
}
}
if (dependents.Length != 0)
{
while ((availableSequence = Util.GetMinimumSequence(dependents)) < sequence)
{
barrier.CheckAlert();
}
}
return(availableSequence);
}
/// <summary>
/// Wait for the given sequence to be available with a timeout specified.
/// </summary>
/// <param name="sequence">sequence to be waited on.</param>
/// <param name="cursor">cursor on which to wait.</param>
/// <param name="dependents">dependents further back the chain that must advance first</param>
/// <param name="barrier">barrier the processor is waiting on.</param>
/// <param name="timeout">timeout value to abort after.</param>
/// <returns>the sequence that is available which may be greater than the requested sequence.</returns>
/// <exception cref="AlertException">AlertException if the status of the Disruptor has changed.</exception>
public long WaitFor(long sequence, Sequence cursor, Sequence[] dependents, ISequenceBarrier barrier, TimeSpan timeout)
{
long availableSequence;
var spinWait = default(SpinWait);
var sw = Stopwatch.StartNew();
if (dependents.Length == 0)
{
while ((availableSequence = cursor.Value) < sequence) // volatile read
{
barrier.CheckAlert();
spinWait.SpinOnce();
if (sw.Elapsed > timeout)
{
break;
}
}
}
else
{
while ((availableSequence = Util.GetMinimumSequence(dependents)) < sequence)
{
barrier.CheckAlert();
spinWait.SpinOnce();
if (sw.Elapsed > timeout)
{
break;
}
}
}
return availableSequence;
}
/// <summary>
/// Construct a <see cref="IBatchEventProcessor{TEvent}"/> that will automatically track the progress by updating its sequence when the <see cref="IEventHandler{TEvent}.OnEvent(TEvent,long,bool)"/> method returns.
/// </summary>
/// <param name="exceptionHandler"></param>
/// <param name="dataProvider">to which events are published.</param>
/// <param name="sequenceBarrier">on which it is waiting.</param>
/// <param name="eventHandler">is the delegate to which events are dispatched.</param>
public BatchEventProcessor(
IDataProvider <TEvent> dataProvider,
ISequenceBarrier sequenceBarrier,
IEventHandler <TEvent> eventHandler,
IExceptionHandler <TEvent> exceptionHandler)
{
_exceptionHandler = exceptionHandler;
_dataProvider = dataProvider;
_sequenceBarrier = sequenceBarrier;
_eventHandler = eventHandler;
_sequence = new Sequence();
if (eventHandler is ISequenceReportingEventHandler <TEvent> reporting)
{
reporting?.SetSequenceCallback(_sequence);
}
if (eventHandler is IBatchStartAware batchStartAware)
{
_batchStartAware = batchStartAware;
}
if (eventHandler is ITimeoutHandler timeoutHandler)
{
_timeoutHandler = timeoutHandler;
}
if (eventHandler is ILifecycleAware lifecycleAware)
{
_lifecycleAware = lifecycleAware;
}
}
public long Start()
{
OzzyLogger <IDomainModelTracing> .Log.TraceInformationalEvent("Start event loop");
if (Interlocked.CompareExchange(ref _stage, 1, 0) == 0)
{
var minCheckpoint = 0L;
var checkpoints = _eventProcessors.Select(e => e.GetCheckpoint()).ToList();
if (checkpoints.Any())
{
minCheckpoint = checkpoints.Min();
}
_disruptor = new Disruptor <DomainEventEntry>(() => new DomainEventEntry(),
new MultiThreadedClaimStrategy(_bufferSize),
_waitStrategy ?? new BlockingWaitStrategy(),
TaskScheduler.Default,
minCheckpoint);
_disruptor.HandleExceptionsWith(_exceptionHandler);
foreach (var domainEventsProcessor in _eventProcessors)
{
_disruptor.HandleEventsWith(domainEventsProcessor.GetCheckpoint(), domainEventsProcessor);
}
_ringBuffer = _disruptor.Start();
_barrier = _ringBuffer.NewBarrier();
StartCursorSupervisor(minCheckpoint, TimeSpan.FromMilliseconds(_pollTimeout));
Interlocked.Exchange(ref _stage, 2);
return(minCheckpoint);
}
else
{
throw new InvalidOperationException("Domain Manager already started");
}
}
private IEventProcessor[] GetRequestSenders(
RingBuffer <EventType> ringBuffer,
ISequenceBarrier sequenceBarrier,
RequestSenderMode mode)
{
var mockExternalService = new MockExternalService <OutgoingRequest, int>();
AsyncExtensions.FireAndForgetLongRunning(
() => mockExternalService.Run(),
(ex) => Assert.Fail(ex.StackTrace)
);
var createOrUpdateRequestExecutor = new RequestSender <EventType, OutgoingRequest>(
(@event) => @event.CreateOrUpdateTodoListRequest, mockExternalService, mode, (ex) => Assert.Fail(ex.StackTrace)
);
var deleteRequestExecutor = new RequestSender <EventType, OutgoingRequest>(
(@event) => @event.DeleteTodoListsRequest, mockExternalService, mode, (ex) => Assert.Fail(ex.StackTrace)
);
var removeItemsRequestExecutor = new RequestSender <EventType, OutgoingRequest>(
(@event) => @event.RemoveLineItemsRequest, mockExternalService, mode, (ex) => Assert.Fail(ex.StackTrace)
);
return(new IEventProcessor[] {
new AsyncEventProcessor <EventType>(
ringBuffer, sequenceBarrier, new SpinLock(), createOrUpdateRequestExecutor
),
new AsyncEventProcessor <EventType>(
ringBuffer, sequenceBarrier, new SpinLock(), deleteRequestExecutor
),
new AsyncEventProcessor <EventType>(
ringBuffer, sequenceBarrier, new SpinLock(), removeItemsRequestExecutor
),
});
}
public TestWaiter(Barrier barrier, ISequenceBarrier sequenceBarrier, RingBuffer <StubEvent> ringBuffer, long initialSequence, long toWaitForSequence)
{
_barrier = barrier;
_sequenceBarrier = sequenceBarrier;
_ringBuffer = ringBuffer;
_initialSequence = initialSequence;
_toWaitForSequence = toWaitForSequence;
}
public void Add(IEventProcessor eventProcessor, object eventHandler, ISequenceBarrier sequenceBarrier)
{
var consumerInfo = new EventProcessorInfo(eventProcessor, eventHandler, sequenceBarrier);
_eventProcessorInfoByEventHandler[eventHandler] = consumerInfo;
_eventProcessorInfoBySequence[eventProcessor.Sequence] = consumerInfo;
_consumerInfos.Add(consumerInfo);
}
public TestWaiter(Barrier barrier, ISequenceBarrier sequenceBarrier, RingBuffer<StubEvent> ringBuffer, long initialSequence, long toWaitForSequence)
{
_barrier = barrier;
_sequenceBarrier = sequenceBarrier;
_ringBuffer = ringBuffer;
_initialSequence = initialSequence;
_toWaitForSequence = toWaitForSequence;
}
public BatchEventProcessorBenchmarks()
{
_ringBuffer = new RingBuffer <TestEvent>(() => new TestEvent(), new SingleProducerSequencer(4096, new SpinWaitWaitStrategy()));
_eventHandler = new TestEventHandler();
_sequenceBarrier = _ringBuffer.NewBarrier();
_ringBuffer.PublishEvent().Dispose();
}
public OneToOneSequencedBatchThroughputTest()
: base(Test_Disruptor, ITERATIONS, 7)
{
ThreadPool.SetMaxThreads(4, 4);
sequenceBarrier = ringBuffer.NewBarrier();
batchEventProcessor = new BatchEventProcessor <ValueEvent>(ringBuffer, sequenceBarrier, handler);
ringBuffer.AddGatingSequences(batchEventProcessor.Sequence);
}
public OneToOneSequencedLongArrayThroughputTest()
: base(Test_Disruptor, ITERATIONS,7)
{
ThreadPool.SetMaxThreads (1,1);
sequenceBarrier = ringBuffer.NewBarrier();
batchEventProcessor = new BatchEventProcessor<long[]>(ringBuffer, sequenceBarrier, handler);
ringBuffer.AddGatingSequences(batchEventProcessor.Sequence);
}
/// <summary>
/// Construct a <see cref="WorkProcessor{T}"/>.
/// </summary>
/// <param name="ringBuffer">ringBuffer to which events are published.</param>
/// <param name="sequenceBarrier">sequenceBarrier on which it is waiting.</param>
/// <param name="workHandler">workHandler is the delegate to which events are dispatched.</param>
/// <param name="exceptionHandler">exceptionHandler to be called back when an error occurs</param>
/// <param name="workSequence">workSequence from which to claim the next event to be worked on. It should always be initialised
/// as <see cref="Sequencer.InitialCursorValue"/></param>
public WorkProcessor(RingBuffer <T> ringBuffer, ISequenceBarrier sequenceBarrier, IWorkHandler <T> workHandler, IExceptionHandler exceptionHandler, Sequence workSequence)
{
_ringBuffer = ringBuffer;
_sequenceBarrier = sequenceBarrier;
_workHandler = workHandler;
_exceptionHandler = exceptionHandler;
_workSequence = workSequence;
}
public OnePublisherToOneProcessorUniCastThroughputTest()
: base("Disruptor", ITERATIONS)
{
sequenceBarrier = ringBuffer.NewBarrier();
batchEventProcessor = new BatchEventProcessor <ValueEvent>(ringBuffer, sequenceBarrier, disruptorHandler);
ringBuffer.AddGatingSequences(batchEventProcessor.Sequence);
//queueHandler = new ValueAdditionQueueProcessor_V3(blockQueue, ITERATIONS - 1);
}
public OnePublisherToOneProcessorUniCastThroughputTest()
: base("Disruptor", ITERATIONS)
{
sequenceBarrier = ringBuffer.NewBarrier();
batchEventProcessor = new BatchEventProcessor<ValueEvent>(ringBuffer, sequenceBarrier, disruptorHandler);
ringBuffer.AddGatingSequences(batchEventProcessor.Sequence);
//queueHandler = new ValueAdditionQueueProcessor_V3(blockQueue, ITERATIONS - 1);
}
public void Setup()
{
_ringBuffer = new RingBuffer <StubEvent>(() => new StubEvent(-1), 16);
_sequenceBarrier = _ringBuffer.NewBarrier();
_batchHandlerMock = new Mock <IEventHandler <StubEvent> >();
_countDownEvent = new CountdownEvent(1);
_batchEventProcessor = new BatchEventProcessor <StubEvent>(_ringBuffer, _sequenceBarrier, _batchHandlerMock.Object);
_ringBuffer.AddGatingSequences(_batchEventProcessor.Sequence);
}
public RingBufferConsumer(
IRingBuffer <TMessage> messageQueue,
ISequenceBarrier sequenceBarrier,
IMessageHandler <TMessage> batchMessageHandler)
{
this._messageBuffer = messageQueue;
this._sequenceBarrier = sequenceBarrier;
this._batchMessageHandler = batchMessageHandler;
}
public EventProcessorInfo(
IEventProcessor processor,
IEventHandler <T> handler,
ISequenceBarrier barrier)
{
_processor = processor;
_handler = handler;
_barrier = barrier;
}
public void Setup()
{
_ringBuffer = new RingBuffer<StubEvent>(()=>new StubEvent(-1), 16);
_sequenceBarrier = _ringBuffer.NewBarrier();
_batchHandlerMock = new Mock<IEventHandler<StubEvent>>();
_countDownEvent = new CountdownEvent(1);
_batchEventProcessor = new BatchEventProcessor<StubEvent>(_ringBuffer, _sequenceBarrier, _batchHandlerMock.Object);
_ringBuffer.AddGatingSequences(_batchEventProcessor.Sequence);
}
/// <summary>
/// Construct a <see cref="BatchEventProcessor{T}"/> that will automatically track the progress by updating its sequence when
/// the <see cref="IEventHandler{T}.OnEvent"/> method returns.
/// </summary>
/// <param name="dataProvider">dataProvider to which events are published</param>
/// <param name="sequenceBarrier">SequenceBarrier on which it is waiting.</param>
/// <param name="eventHandler">eventHandler is the delegate to which events are dispatched.</param>
public BatchEventProcessor(IDataProvider <T> dataProvider, ISequenceBarrier sequenceBarrier, IEventHandler <T> eventHandler)
{
_dataProvider = dataProvider;
_sequenceBarrier = sequenceBarrier;
_eventHandler = eventHandler;
(eventHandler as ISequenceReportingEventHandler <T>)?.SetSequenceCallback(_sequence);
_timeoutHandler = eventHandler as ITimeoutHandler;
}
public ThreeToOneSequencedThroughputTest()
{
_sequenceBarrier = _ringBuffer.NewBarrier();
_batchEventProcessor = new BatchEventProcessor<ValueEvent>(_ringBuffer, _sequenceBarrier, _handler);
for (var i = 0; i < _numPublishers; i++)
{
_valuePublishers[i] = ValuePublisher;
}
_ringBuffer.AddGatingSequences(_batchEventProcessor.Sequence);
}
/// <summary>
/// <see cref="IWaitStrategy.WaitFor"/>
/// </summary>
public long WaitFor(long sequence, Sequence cursor, ISequence dependentSequence, ISequenceBarrier barrier)
{
long availableSequence;
while ((availableSequence = dependentSequence.Value) < sequence)
{
barrier.CheckAlert();
}
return availableSequence;
}
public TestWaiter(CyclicBarrier cyclicBarrier,
ISequenceBarrier sequenceBarrier,
RingBuffer<StubEvent> ringBuffer,
long initialSequence,
long toWaitForSequence)
{
this.cyclicBarrier = cyclicBarrier;
this.initialSequence = initialSequence;
this.ringBuffer = ringBuffer;
this.toWaitForSequence = toWaitForSequence;
this.sequenceBarrier = sequenceBarrier;
}
/// <summary>
/// Wait for the given sequence to be available. It is possible for this method to return a value
/// less than the sequence number supplied depending on the implementation of the WaitStrategy. A common
/// use for this is to signal a timeout. Any EventProcessor that is using a WaitStragegy to get notifications
/// about message becoming available should remember to handle this case. The {@link BatchEventProcessor} explicitly
/// handles this case and will signal a timeout if required.
/// </summary>
/// <param name="sequence">to be waited on.</param>
/// <param name="cursor">the main sequence from ringbuffer. Wait/notify strategies will need this as it's the only sequence that is also notified upon update.</param>
/// <param name="dependentSequence">on which to wait.</param>
/// <param name="barrier">the processor is waiting on.</param>
/// <returns></returns>
/// <exception cref="AlertException">if the status of the Disruptor has changed.</exception>
/// <exception cref="System.Threading.ThreadInterruptedException">if the thread is interrupted.</exception>
/// <exception cref="TimeoutException"></exception>
/// Date:2013/8/27
/// Author:liguo
public long WaitFor(long sequence, Sequence cursor, Sequence dependentSequence, ISequenceBarrier barrier)
{
long availableSequence;
int counter = RETRIES;
while ((availableSequence = dependentSequence.Value) < sequence)
{
counter = ApplyWaitMethod(barrier, counter);
}
return availableSequence;
}
public ThreeToOneSequencedBatchThroughputTest()
: base(Test_Disruptor, ITERATIONS,7)
{
ThreadPool.SetMaxThreads (4,4);
sequenceBarrier = ringBuffer.NewBarrier();
batchEventProcessor = new BatchEventProcessor<ValueEvent>(ringBuffer, sequenceBarrier, handler);
for (int i = 0; i < NUM_PUBLISHERS; i++)
{
valuePublishers[i] = new ValueBatchPublisher(cyclicBarrier, ringBuffer, ITERATIONS / NUM_PUBLISHERS, 10);
}
ringBuffer.AddGatingSequences(batchEventProcessor.Sequence);
}
private int ApplyWaitMethod(ISequenceBarrier barrier, int counter)
{
barrier.CheckAlert();
if (0 == counter)
{
Thread.Yield ();
}
else
{
--counter;
}
return counter;
}
public TwoPublisherToTwoProcessorWorkProcessorThroughputTest()
: base(TestName, ITERATIONS)
{
sequenceBarrier = ringBuffer.NewBarrier();
workProcessors[0] = new WorkProcessor<ValueEvent>(ringBuffer, sequenceBarrier,
handlers[0], new IgnoreExceptionHandler(),
workSequence);
workProcessors[1] = new WorkProcessor<ValueEvent>(ringBuffer, sequenceBarrier,
handlers[1], new IgnoreExceptionHandler(),
workSequence);
//workerPool = new WorkerPool<ValueEvent>(ringBuffer, sequenceBarrier, new IgnoreExceptionHandler(), handlers);
for (int i = 0; i < NUM_PUBLISHERS; i++)
{
valuePublishers[i] = new ValuePublisher_V3(cyclicBarrier, ringBuffer, ITERATIONS);
}
workProcessors.ToList().ForEach(e => ringBuffer.AddGatingSequences(e.Sequence));
//ringBuffer.AddGatingSequences(/*workerPool.getWorkerSequences()*/workProcessors[0].Sequence, workProcessors[1].Sequence);
}
private static int ApplyWaitMethod(ISequenceBarrier barrier, int counter)
{
barrier.CheckAlert();
if (counter > 100)
{
--counter;
}
else if (counter > 0)
{
--counter;
Thread.Yield();
}
else
{
Thread.Sleep(0);
}
return counter;
}
/// <summary>
/// Wait for the given sequence to be available
/// </summary>
/// <param name="sequence">sequence to be waited on.</param>
/// <param name="cursor">Ring buffer cursor on which to wait.</param>
/// <param name="dependents">dependents further back the chain that must advance first</param>
/// <param name="barrier">barrier the <see cref="IEventProcessor"/> is waiting on.</param>
/// <returns>the sequence that is available which may be greater than the requested sequence.</returns>
public long WaitFor(long sequence, Sequence cursor, Sequence[] dependents, ISequenceBarrier barrier)
{
long availableSequence;
if (dependents.Length == 0)
{
while ((availableSequence = cursor.Value) < sequence) // volatile read
{
barrier.CheckAlert();
}
}
else
{
while ((availableSequence = Util.GetMinimumSequence(dependents)) < sequence)
{
barrier.CheckAlert();
}
}
return availableSequence;
}
private int ApplyWaitMethod(ISequenceBarrier barrier, int counter)
{
barrier.CheckAlert();
if (counter > 100)
{
--counter;
}
else if (counter > 0)
{
--counter;
Thread.Sleep(0);
}
else
{
spinWait.SpinOnce();
//LockSupport.parkNanos(1L);
}
return counter;
}
/// <summary>
/// <see cref="IWaitStrategy.WaitFor"/>
/// </summary>
public long WaitFor(long sequence, Sequence cursor, ISequence dependentSequence, ISequenceBarrier barrier)
{
if (cursor.Value < sequence)
{
lock (_gate)
{
while (cursor.Value < sequence)
{
barrier.CheckAlert();
Monitor.Wait(_gate);
}
}
}
long availableSequence;
while ((availableSequence = dependentSequence.Value) < sequence)
{
barrier.CheckAlert();
}
return availableSequence;
}
/// <summary>
/// Wait for the given sequence to be available
/// </summary>
/// <param name="sequence">sequence to be waited on.</param>
/// <param name="cursor">Ring buffer cursor on which to wait.</param>
/// <param name="dependents">dependents further back the chain that must advance first</param>
/// <param name="barrier">barrier the <see cref="IEventProcessor"/> is waiting on.</param>
/// <returns>the sequence that is available which may be greater than the requested sequence.</returns>
public long WaitFor(long sequence, Sequence cursor, Sequence[] dependents, ISequenceBarrier barrier)
{
long availableSequence;
var counter = 0;
if (dependents.Length == 0)
{
while ((availableSequence = cursor.Value) < sequence) // volatile read
{
counter = ApplyWaitMethod(barrier, counter);
}
}
else
{
while ((availableSequence = Util.GetMinimumSequence(dependents)) < sequence)
{
counter = ApplyWaitMethod(barrier, counter);
}
}
return availableSequence;
}
public TwoToTwoWorkProcessorThroughputTest()
: base(Test_Disruptor, ITERATIONS)
{
sequenceBarrier = ringBuffer.NewBarrier();
handlers[0] = new ValueAdditionWorkHandler();
handlers[1] = new ValueAdditionWorkHandler();
workProcessors[0] = new WorkProcessor<ValueEvent>(ringBuffer, sequenceBarrier,
handlers[0], new IgnoreExceptionHandler(),
workSequence);
workProcessors[1] = new WorkProcessor<ValueEvent>(ringBuffer, sequenceBarrier,
handlers[1], new IgnoreExceptionHandler(),
workSequence);
for (int i = 0; i < NUM_PUBLISHERS; i++)
{
valuePublishers[i] = new ValuePublisher(cyclicBarrier, ringBuffer, ITERATIONS);
}
ringBuffer.AddGatingSequences(workProcessors[0].Sequence, workProcessors[1].Sequence);
}
public long WaitFor(long sequence, Sequence cursor, Sequence dependentSequence, ISequenceBarrier barrier)
{
long availableSequence;
if ((availableSequence = dependentSequence.Value) < sequence)
{
bool lockToken = false;
Monitor.Enter(obj, ref lockToken);
try
{
do
{
signalNeeded.WriteFullFence(true);
if ((availableSequence = dependentSequence.Value) >= sequence)
{
break;
}
barrier.CheckAlert();
Monitor.Wait(obj);
}
while ((availableSequence = dependentSequence.Value) < sequence);
}
finally
{
if (lockToken)
Monitor.Exit(obj);
}
}
while ((availableSequence = dependentSequence.Value) < sequence)
{
barrier.CheckAlert();
}
return availableSequence;
}
/// <summary>
/// Wait for the given sequence to be available. It is possible for this method to return a value
/// less than the sequence number supplied depending on the implementation of the WaitStrategy. A common
/// use for this is to signal a timeout. Any EventProcessor that is using a WaitStragegy to get notifications
/// about message becoming available should remember to handle this case. The {@link BatchEventProcessor} explicitly
/// handles this case and will signal a timeout if required.
/// </summary>
/// <param name="sequence">to be waited on.</param>
/// <param name="cursor">the main sequence from ringbuffer. Wait/notify strategies will need this as it's the only sequence that is also notified upon update.</param>
/// <param name="dependentSequence">on which to wait.</param>
/// <param name="barrier">the processor is waiting on.</param>
/// <returns></returns>
/// <exception cref="AlertException">if the status of the Disruptor has changed.</exception>
/// <exception cref="System.Threading.ThreadInterruptedException">if the thread is interrupted.</exception>
/// <exception cref="TimeoutException"></exception>
/// Date:2013/8/27
/// Author:liguo
public long WaitFor(long sequence, Sequence cursor, Sequence dependentSequence, ISequenceBarrier barrier)
{
long availableSequence;
long startTime = 0;
int counter = SPIN_TRIES;
var stopWatch = Stopwatch.StartNew();
do
{
if ((availableSequence = dependentSequence.Value) >= sequence)
{
return availableSequence;
}
if (0 == --counter)
{
if (0 == startTime)
{
startTime = stopWatch.ElapsedTicks;
}
else
{
var timeDelta = stopWatch.Elapsed;
if (timeDelta > yieldTimeoutNanos)
{
return lockingStrategy.WaitOnLock(sequence, cursor, dependentSequence, barrier, spinTimeoutNanos);
}
else if (timeDelta > spinTimeoutNanos)
{
Thread.Sleep(0);
}
}
counter = SPIN_TRIES;
}
}
while (true);
}
public MyRunnable(ISequencer sequencer)
{
_barrier = sequencer.NewBarrier();
}
