public void ShouldWaitForWorkCompleteWhereAllWorkersAreBlockedOnRingBuffer()
{
const long expectedNumberMessages = 10;
FillRingBuffer(expectedNumberMessages);
var workers = new StubEventProcessor[3];
for (var i = 0; i < workers.Length; i++)
{
workers[i] = new StubEventProcessor(expectedNumberMessages - 1);
}
var dependencyBarrier = _ringBuffer.NewBarrier(Util.GetSequencesFor(workers));
Task.Run(() =>
{
var sequence = _ringBuffer.Next();
_ringBuffer[sequence].Value = (int)sequence;
_ringBuffer.Publish(sequence);
foreach (var stubWorker in workers)
{
stubWorker.Sequence.SetValue(sequence);
}
});
const long expectedWorkSequence = expectedNumberMessages;
var completedWorkSequence = dependencyBarrier.WaitFor(expectedNumberMessages);
Assert.IsTrue(completedWorkSequence >= expectedWorkSequence);
}
public void ShouldWaitForWorkCompleteWhereCompleteWorkThresholdIsBehind()
{
const long expectedNumberMessages = 10;
FillRingBuffer(expectedNumberMessages);
var eventProcessors = new StubEventProcessor[3];
for (var i = 0; i < eventProcessors.Length; i++)
{
eventProcessors[i] = new StubEventProcessor(expectedNumberMessages - 2);
}
var eventProcessorBarrier = _ringBuffer.NewBarrier(Util.GetSequencesFor(eventProcessors));
Task.Factory.StartNew(() =>
{
foreach (var stubWorker in eventProcessors)
{
stubWorker.Sequence.SetValue(stubWorker.Sequence.Value + 1);
}
}).Wait();
const long expectedWorkSequence = expectedNumberMessages - 1;
var completedWorkSequence = eventProcessorBarrier.WaitFor(expectedWorkSequence);
Assert.IsTrue(completedWorkSequence >= expectedWorkSequence);
}
public void ShouldWaitForWorkCompleteWhereAllWorkersAreBlockedOnRingBuffer()
{
const long expectedNumberEvents = 10;
FillRingBuffer(expectedNumberEvents);
var workers = new StubEventProcessor[3];
for (var i = 0; i < workers.Length; i++)
{
workers[i] = new StubEventProcessor(expectedNumberEvents - 1);
}
var dependencyBarrier = _ringBuffer.NewBarrier(Util.GetSequencesFor(workers));
new Thread(() =>
{
var sequence = _ringBuffer.Next();
_ringBuffer[sequence].Value = (int) sequence;
_ringBuffer.Publish(sequence);
foreach (var stubWorker in workers)
{
stubWorker.Sequence.Value = sequence;
}
})
.Start();
const long expectedWorkSequence = expectedNumberEvents;
var completedWorkSequence = dependencyBarrier.WaitFor(expectedNumberEvents);
Assert.IsTrue(completedWorkSequence >= expectedWorkSequence);
}
public void ShouldWaitForWorkCompleteWhereCompleteWorkThresholdIsBehind()
{
const long expectedNumberMessages = 10;
FillRingBuffer(expectedNumberMessages);
var eventProcessors = new StubEventProcessor[3];
for (var i = 0; i < eventProcessors.Length; i++)
{
eventProcessors[i] = new StubEventProcessor(expectedNumberMessages - 2);
}
var eventProcessorBarrier = _ringBuffer.NewBarrier(Util.GetSequencesFor(eventProcessors));
Task.Factory.StartNew(() =>
{
foreach (var stubWorker in eventProcessors)
{
stubWorker.Sequence.SetValue(stubWorker.Sequence.Value + 1);
}
}).Wait();
const long expectedWorkSequence = expectedNumberMessages - 1;
var completedWorkSequence = eventProcessorBarrier.WaitFor(expectedWorkSequence);
Assert.IsTrue(completedWorkSequence >= expectedWorkSequence);
}