/// <summary>
/// The work done by each thread
/// - It writes the cubed value of each element in the queue to a disposable file in the folder specified as OUTPUT_FOLDER.
/// The writing to the file is done in order to take time and ensure that the code is not optimized away by the compiler.
/// In the real benchmarking version this would not be necessary.
/// </summary>
/// <param name="state"></param>
private void Work(object state)
{
Queue <int> threadQueue = (Queue <int>)state; // Cast the state to a Queue.
barrier.SignalAndWait(); // Ensure that tasks are submitted and ready to begin work at the same time
Random random = new Random(); // Do some work, write to file to avoid the compiler recognizing the dead code.
while (threadQueue.Count > 0)
{
int option = random.Next(0, 100);
var element = threadQueue.Dequeue();
if (option >= (100 - config.CurrentPercentageInsert))
{
dictionary.Add(element);
}
else if (option >= (100 - config.CurrentPercentageInsert - config.CurrentPercentageDeleteMin))
{
try
{
dictionary.DeleteMin();
}
catch (NoSuchItemException) { }
}
else if (option >= (100 - config.CurrentPercentageInsert - config.CurrentPercentageDeleteMin - config.CurrentPercentageDeleteMax))
{
try
{
dictionary.DeleteMax();
}
catch (NoSuchItemException e) { }
}
else if (option >= (100 - config.CurrentPercentageInsert - config.CurrentPercentageDeleteMin - config.CurrentPercentageDeleteMax - config.CurrentPercentageGetMin))
{
try
{
dictionary.FindMin();
}
catch (Exception) { }
}
else
{
try
{
dictionary.FindMax();
}
catch (Exception) { }
}
}
barrier.SignalAndWait();// Let main thread know we are done
}
public void DeleteMinTest()
{
Assert.Throws <NoSuchItemException>(() => queue.DeleteMin());
if (prefill)
{
Random rng = new Random();
for (int i = 0; i < n * threadCount; i++)
{
queue.Add(rng.Next(10000));
}
}
Thread[] threads = new Thread[threadCount];
for (int i = 0; i < threadCount; i++)
{
Thread t = new Thread(() =>
{
Random random = new Random();
for (int y = 0; y < n; y++)
{
queue.DeleteMin();
}
});
threads[i] = t;
}
for (int i = 0; i < threads.Length; i++)
{
threads[i].Start();
}
for (int i = 0; i < threads.Length; i++)
{
threads[i].Join();
}
Assert.IsTrue(queue.Check());
Assert.AreEqual(0, queue.Count);
}
public void EmptyQueueDeleteMinTest()
{
Assert.AreEqual(0, queue.Count);
Assert.Throws <NoSuchItemException>(() => queue.DeleteMin());
}