public void ReturnsNoMessagesWhenLastMessageIdIsEqualToLastMessage()
{
// id = 27
// 24, 25, 27
// ^
var trace = new TraceManager();
var bus = new InProcessMessageBus(trace, false);
bus.Send("testclient", "foo", "1").Wait();
bus.Send("testclient", "foo", "2").Wait();
// REVIEW: Will block
//var result = bus.GetMessagesSince(new[] { "foo" }, 2).Result.ToList();
//Assert.Equal(0, result.Count);
}
public void ReturnsAllMessagesWhenLastMessageIdIsLessThanAllMessages()
{
// id = 27
// _, 28, 29, 32
// ^
var trace = new TraceManager();
var bus = new InProcessMessageBus(trace, false);
bus.Send("testclient", "bar", "1").Wait();
bus.Send("testclient", "bar", "2").Wait();
bus.Send("testclient", "foo", "3").Wait();
bus.Send("testclient", "foo", "4").Wait();
var result = bus.GetMessages(new[] { "foo" }, "1", CancellationToken.None).Result;
Assert.Equal(2, result.Messages.Count);
}
public void ReturnsNoMessagesWhenLastMessageIdIsGreaterThanAllMessages()
{
// id = 27
// 14, 18, 25, 26
// ^
var trace = new TraceManager();
var bus = new InProcessMessageBus(trace, false);
bus.Send("foo", "1").Wait();
bus.Send("foo", "2").Wait();
bus.Send("bar", "3").Wait();
bus.Send("bar", "4").Wait();
// REVIEW: Will block
// var result = bus.GetMessagesSince(new[] { "foo" }, 3).Result.ToList();
// Assert.Equal(0, result.Count);
}
public void ReturnsMessagesGreaterThanLastMessageIdWhenLastMessageIdNotInStore()
{
// id = 27
// 24, 25, 28, 30, 45
// ^
var trace = new TraceManager();
var bus = new InProcessMessageBus(trace, false);
bus.Send("testclient", "bar", "1").Wait();
bus.Send("testclient", "foo", "2").Wait();
bus.Send("testclient", "bar", "3").Wait();
bus.Send("testclient", "foo", "4").Wait();
bus.Send("testclient", "bar", "5").Wait();
bus.Send("testclient", "foo", "6").Wait();
var result = bus.GetMessages(new[] { "foo" }, "3", CancellationToken.None).Result;
Assert.Equal(2, result.Messages.Count);
}
public void ReturnsNoMessagesWhenThereAreNoMessages()
{
var trace = new TraceManager();
var bus = new InProcessMessageBus(trace, false);
// REVIEW: Will block
// var result = bus.GetMessagesSince(new[] { "foo" }, 1).Result.ToList();
// Assert.Equal(0, result.Count);
}
private static void StartSendLoop(InProcessMessageBus bus, string payload)
{
while (_exception == null)
{
long old = _rate;
var interval = TimeSpan.FromMilliseconds((1000.0 / _rate) * _senders);
//var interval = TimeSpan.FromMilliseconds(1000.0 / _rate);
while (Interlocked.Read(ref _rate) == old && _exception == null)
{
try
{
var sw = Stopwatch.StartNew();
bus.Send("a", payload).ContinueWith(task =>
{
Interlocked.Exchange(ref _exception, task.Exception);
},
TaskContinuationOptions.OnlyOnFaulted);
sw.Stop();
Interlocked.Exchange(ref _lastSendTimeTicks, sw.ElapsedTicks);
Interlocked.Increment(ref _sent);
Interlocked.Increment(ref _avgLastSendsCount);
//Thread.Sleep(interval);
}
catch (Exception ex)
{
Interlocked.Exchange(ref _exception, ex);
}
}
}
}
private static void StartClientLoop(InProcessMessageBus bus, string[] eventKeys)
{
Interlocked.Increment(ref _clientsRunning);
ReceiveLoop(bus, eventKeys, null);
}
private static void ReceiveLoop(InProcessMessageBus bus, string[] eventKeys, string id)
{
try
{
bus.GetMessages(eventKeys, id, CancellationToken.None).ContinueWith(task =>
{
if (task.IsFaulted)
{
Interlocked.Exchange(ref _exception, task.Exception);
}
else
{
var result = task.Result;
Interlocked.Increment(ref _received);
Interlocked.Increment(ref _avgLastReceivedCount);
ReceiveLoop(bus, eventKeys, result.LastMessageId);
}
});
}
catch (Exception ex)
{
Interlocked.Exchange(ref _exception, ex);
}
}
static void Main(string[] args)
{
var resolver = new DefaultDependencyResolver();
var bus = new InProcessMessageBus(resolver);
var eventKeys = new[] { "a", "b", "c" };
string payload = GetPayload();
TaskScheduler.UnobservedTaskException += OnUnobservedTaskException;
for (int i = 0; i < _clients; i++)
{
Task.Factory.StartNew(() => StartClientLoop(bus, eventKeys), TaskCreationOptions.LongRunning);
//ThreadPool.QueueUserWorkItem(_ => StartClientLoop(bus, eventKeys));
//(new Thread(_ => StartClientLoop(bus, eventKeys))).Start();
}
for (var i = 1; i <= _senders; i++)
{
//ThreadPool.QueueUserWorkItem(_ => StartSendLoop(bus, payload));
Task.Factory.StartNew(() => StartSendLoop(bus, payload), TaskCreationOptions.LongRunning);
}
MeasureStats();
Console.ReadLine();
}
