public Task EnqueueAsync(TItem item)
{
using (Lock.Enter())
{
ItemsQueue.Enqueue(item);
return(LockedInsertUpdateAsync());
}
}
//Do everything at once
private void ProcessQueue()
{
string printStr = "----QUEUE DUMP-----\n";
while (ItemsQueue.Count > 0)
{
printStr += $"{ItemsQueue.Dequeue().StrValue}\n";
}
printStr += "----------------";
Console.WriteLine(printStr);
}
public QueueItem AddItem(string text, Func <QueueItem, CancellationToken, bool> actionWithResult, Action <QueueItem> actionWhenDone = null)
{
// Can't set default parameter to this in the function signature because it's not a compile-time constant
QueueItem queueItem = new QueueItem()
{
TaskText = text, Status = QueueStatus.InQueue, Work = actionWithResult, DoWhenDone = actionWhenDone
};
ItemsQueue.Add(queueItem);
Cycle();
return(queueItem);
}
public bool TryDequeu(out TItem item)
{
using (Lock.Enter())
{
if (ItemsQueue.Count <= 0)
{
item = default(TItem);
return(false);
}
item = ItemsQueue.Dequeue();
LockedUpdateEnqueueAccess();
return(true);
}
}
public void AddItem(QueueItem item)
{
// Console.WriteLine($"Item added: {item.Type}");
//Deal with first 2 items immediately
if (ItemCount < ThrottleServiceConstant.ThrottleThreshold)
{
ProcessItem(item);
ItemCount++;
return;
}
ItemsQueue.Enqueue(item);
ItemCount++;
Stopwatch.Restart();
}
public void Cycle()
{
if (ItemsRunning < _appSettings.MaxBackgroundJobs)
{
var inQueueJobs = ItemsQueue.Where(x => x.Status == QueueStatus.InQueue);
while (ItemsQueue.Where(x => x.Status == QueueStatus.InQueue).Count() > 0 && ItemsRunning < _appSettings.MaxBackgroundJobs)
{
var nextJob = ItemsQueue.Where(x => x.Status == QueueStatus.InQueue).FirstOrDefault();
if (nextJob != null)
{
nextJob.Status = QueueStatus.InProgress;
QueueItemStatusChange.Invoke(nextJob);
StartItem(nextJob);
}
}
}
}