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jinx/ChocolArm64/Translation/TranslatorQueue.cs

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using System.Collections.Concurrent;
using System.Threading;
namespace ChocolArm64.Translation
{
class TranslatorQueue
{
//This is the maximum number of functions to be translated that the queue can hold.
//The value may need some tuning to find the sweet spot.
private const int MaxQueueSize = 1024;
private ConcurrentStack<TranslatorQueueItem>[] _translationQueue;
private ManualResetEvent _queueDataReceivedEvent;
private bool _signaled;
public TranslatorQueue()
{
_translationQueue = new ConcurrentStack<TranslatorQueueItem>[(int)TranslationTier.Count];
for (int prio = 0; prio < _translationQueue.Length; prio++)
{
_translationQueue[prio] = new ConcurrentStack<TranslatorQueueItem>();
}
_queueDataReceivedEvent = new ManualResetEvent(false);
}
public void Enqueue(TranslatorQueueItem item)
{
ConcurrentStack<TranslatorQueueItem> queue = _translationQueue[(int)item.Tier];
if (queue.Count >= MaxQueueSize)
{
queue.TryPop(out _);
}
queue.Push(item);
_queueDataReceivedEvent.Set();
}
public bool TryDequeue(out TranslatorQueueItem item)
{
for (int prio = 0; prio < _translationQueue.Length; prio++)
{
if (_translationQueue[prio].TryPop(out item))
{
return true;
}
}
item = default(TranslatorQueueItem);
return false;
}
public void WaitForItems()
{
_queueDataReceivedEvent.WaitOne();
lock (_queueDataReceivedEvent)
{
if (!_signaled)
{
_queueDataReceivedEvent.Reset();
}
}
}
public void ForceSignal()
{
lock (_queueDataReceivedEvent)
{
_signaled = true;
_queueDataReceivedEvent.Set();
_queueDataReceivedEvent.Close();
}
}
}
}