cs-codex-dist-tests/Framework/OverwatchTranscript/ActionQueue.cs

62 lines
1.6 KiB
C#

namespace OverwatchTranscript
{
public class ActionQueue
{
// Using ConcurrentQueue<> here would make this process slower.
private readonly object queueLock = new object();
private readonly AutoResetEvent signal = new AutoResetEvent(false);
private List<Action> queue = new List<Action>();
private Task queueWorker = null!;
private bool stopping = false;
public void Start()
{
queueWorker = Task.Run(QueueWorker);
}
public int Count { get; private set; }
public void StopAndJoin()
{
stopping = true;
queueWorker.Wait();
if (queue.Count > 0) throw new Exception("not all acions handled");
queueWorker.Dispose();
}
public void Add(Action action)
{
if (stopping) throw new Exception("queue stopping");
lock (queueLock)
{
queue.Add(action);
Count = queue.Count;
}
signal.Set();
}
private void QueueWorker()
{
while (true)
{
signal.WaitOne(10);
List<Action> work = null!;
lock (queueLock)
{
work = queue;
queue = new List<Action>();
Count = 0;
}
if (stopping && !work.Any()) return;
foreach (var action in work)
{
action();
}
}
}
}
}