/// <summary>
/// This task runs continuously, waiting for new messages. The task will pend on a semaphore when
/// the maximum number of active messages has been reached.
/// </summary>
private void RunLimitedConsumeTask()
{
while (true)
{
limitedConsumeSempahore.Take();
BasicGetResult result;
do
{
result = Channel.BasicGet(queue: Name, autoAck: autoAcknowledgeMessages);
if (result == null)
{
// Wait before checking again.
//TODO: Not the smartest way to do this. Is there a better way?
Thread.Sleep(1000);
}
} while (result == null);
var wrapper = MessageEnvelope.Deserialize(result.Body.ToArray(), result, this.ParentMessageClient);
//MessageBase message = MessageBase.Deserialize(wrapper, result, this.ParentMessageClient);
FireMessageReceivedEvent(wrapper);
}
}
public void GiveTakeTest()
{
var sem = new SimpleCountingSemaphore(3, 0);
sem.Take();
Assert.AreEqual(sem.Count, 1);
sem.Take();
Assert.AreEqual(sem.Count, 2);
sem.Take();
Assert.AreEqual(sem.Count, 3);
var result = sem.TryTake();
Assert.IsFalse(result);
Assert.AreEqual(sem.Count, 3);
Timer timer = new Timer(200);
timer.Elapsed += (sender, e) => sem.Give();
timer.Start();
sem.Take();
Assert.AreEqual(sem.Count, 3);
sem.Give();
Assert.AreEqual(sem.Count, 2);
sem.Give();
Assert.AreEqual(sem.Count, 1);
sem.Give();
Assert.AreEqual(sem.Count, 0);
sem.Give();
Assert.AreEqual(sem.Count, 0);
sem.Dispose();
CatchExceptionHelper.VerifyExceptionCaught <ObjectDisposedException>(() => sem.Take());
}