private static bool RunComplexTestOnBlockingCollection(int elemCount, int thCount)
{
BlockingCollection <ThreadPoolWorkItem> q = new BlockingCollection <ThreadPoolWorkItem>(1000);
int mainIndex = -1;
int trackElemCount = elemCount;
int addFinished = 0;
ThreadPoolLocalQueue[] locQ = new ThreadPoolLocalQueue[thCount];
for (int i = 0; i < locQ.Length; i++)
{
locQ[i] = new ThreadPoolLocalQueue();
}
Thread[] threadsMain = new Thread[thCount];
Thread[] threadsAdditional = new Thread[thCount];
CancellationTokenSource tokSrc = new CancellationTokenSource();
List <int> global = new List <int>(elemCount);
Action additionalAction = () =>
{
while (true)
{
int item = Interlocked.Decrement(ref trackElemCount);
if (item < 0)
{
break;
}
q.Add(new TestThreadPoolItem(item));
}
Interlocked.Increment(ref addFinished);
};
Action mainAction = () =>
{
var localQ = locQ[Interlocked.Increment(ref mainIndex)];
List <int> data = new List <int>();
try
{
int index = 0;
while (Volatile.Read(ref addFinished) < thCount)
{
ThreadPoolWorkItem tmp = null;
if (q.TryTake(out tmp, -1, tokSrc.Token))
{
data.Add((TestThreadPoolItem)tmp);
}
if (((index++) % 10) == 0)
{
int item = Interlocked.Decrement(ref trackElemCount);
if (item >= 0)
{
while (!q.TryAdd(new TestThreadPoolItem(item)))
{
if (q.TryTake(out tmp, 0, CancellationToken.None))
{
data.Add((TestThreadPoolItem)tmp);
}
}
}
}
}
}
catch (OperationCanceledException) { }
ThreadPoolWorkItem tmp2;
while (q.TryTake(out tmp2))
{
data.Add((TestThreadPoolItem)tmp2);
}
lock (global)
global.AddRange(data);
};
for (int i = 0; i < threadsMain.Length; i++)
{
threadsMain[i] = new Thread(new ThreadStart(mainAction));
}
for (int i = 0; i < threadsAdditional.Length; i++)
{
threadsAdditional[i] = new Thread(new ThreadStart(additionalAction));
}
Stopwatch sw = Stopwatch.StartNew();
for (int i = 0; i < threadsMain.Length; i++)
{
threadsMain[i].Start();
}
for (int i = 0; i < threadsAdditional.Length; i++)
{
threadsAdditional[i].Start();
}
for (int i = 0; i < threadsAdditional.Length; i++)
{
threadsAdditional[i].Join();
}
tokSrc.Cancel();
for (int i = 0; i < threadsMain.Length; i++)
{
threadsMain[i].Join();
}
sw.Stop();
bool result = true;
if (elemCount != global.Count)
{
Console.WriteLine("Incorrect items count");
result = false;
}
global.Sort();
for (int i = 0; i < Math.Min(elemCount, global.Count); i++)
{
if (global[i] != i)
{
Console.WriteLine("Incorrect items value");
result = false;
break;
}
}
Console.WriteLine(q.GetType().Name + ". Element count = " + elemCount.ToString() + ", Time = " + sw.ElapsedMilliseconds.ToString() + "ms");
Console.WriteLine();
return(result);
}