/// <summary>
/// Recurse search for an element to take
/// </summary>
/// <param name="currentQueueNumber">Queue number (priority)</param>
/// <returns></returns>
private TItem DequeueItemsReqursively(int currentQueueNumber)
{
int nextQueueNumber = currentQueueNumber + 1;
if (currentQueueNumber >= _itemCollections.Count)
{
throw new Exception("No more queues");
}
var items = _itemCollections[currentQueueNumber];
if (items.Count > 0)
{
for (int i = 0; i < items.Count; i++)
{
var item = items[i];
if (_itemCounters.GetCount(item.Key) < _maxParallelUsingItemsCount) // we skip element if usage of such address if exceeded allowed limit
{
items.RemoveAt(i);
_itemCounters.IncrementCount(item.Key);
return(item.Item);
}
}
}
return(DequeueItemsReqursively(nextQueueNumber));
}
private TItem DequeueItemsCycle()
{
// already locked:
if (_itemsInUseCounters.TotalCount >= _maxTotalUsingItemsCount)
{
throw new Exception("Cannot get item because max total limit exceeded");
}
foreach (var items in _itemCollections)
{
for (int j = 0; j < items.Count; ++j)
{
var item = items[j];
if (_itemsInUseCounters.GetCount(item.Key) < _maxParallelUsingItemsCount) // skip element if usage count limit exceeded
{
items.RemoveAt(j);
_itemsInUseCounters.IncrementCount(item.Key);
return(item.Item);
}
}
}
throw new Exception("All queues passed, no more queues");
}
