clean up semaphore

ConfusedPolarBear.Plugin.IntroSkipper/ScheduledTasks/DetectCreditsTask.cs

@@ -78,7 +78,7 @@ public class DetectCreditsTask : IScheduledTask
             Entrypoint.CancelAutomaticTask(cancellationToken);
         }
 
-        using (ScheduledTaskSemaphore.Acquire(-1, cancellationToken))
+        using (ScheduledTaskSemaphore.Acquire(cancellationToken))
         {
             _logger.LogInformation("Scheduled Task is starting");
 

ConfusedPolarBear.Plugin.IntroSkipper/ScheduledTasks/DetectIntrosCreditsTask.cs

@@ -77,7 +77,7 @@ public class DetectIntrosCreditsTask : IScheduledTask
             Entrypoint.CancelAutomaticTask(cancellationToken);
         }
 
-        using (ScheduledTaskSemaphore.Acquire(-1, cancellationToken))
+        using (ScheduledTaskSemaphore.Acquire(cancellationToken))
         {
             _logger.LogInformation("Scheduled Task is starting");
 

ConfusedPolarBear.Plugin.IntroSkipper/ScheduledTasks/DetectIntrosTask.cs

@@ -77,7 +77,7 @@ public class DetectIntrosTask : IScheduledTask
             Entrypoint.CancelAutomaticTask(cancellationToken);
         }
 
-        using (ScheduledTaskSemaphore.Acquire(-1, cancellationToken))
+        using (ScheduledTaskSemaphore.Acquire(cancellationToken))
         {
             _logger.LogInformation("Scheduled Task is starting");
 

ConfusedPolarBear.Plugin.IntroSkipper/ScheduledTasks/ScheduledTaskSemaphore.cs

@@ -7,29 +7,18 @@ internal sealed class ScheduledTaskSemaphore : IDisposable
 {
     private static readonly SemaphoreSlim _semaphore = new(1, 1);
 
-    private static bool _isHeld;
-
     private ScheduledTaskSemaphore()
     {
     }
 
-    public static int CurrentCount => _semaphore.CurrentCount;
-
-    public static IDisposable Acquire(int timeout, CancellationToken cancellationToken)
+    public static IDisposable Acquire(CancellationToken cancellationToken)
     {
-        _isHeld = _semaphore.Wait(timeout, cancellationToken);
+        _semaphore.Wait(cancellationToken);
         return new ScheduledTaskSemaphore();
     }
 
-    /// <summary>
-    /// Dispose.
-    /// </summary>
     public void Dispose()
-    {
-        if (_isHeld) // Release only if acquired
     {
         _semaphore.Release();
-            _isHeld = false;
-        }
     }
 }

ConfusedPolarBear.Plugin.IntroSkipper/Services/Entrypoint.cs

@@ -247,7 +247,7 @@ public sealed class Entrypoint : IHostedService, IDisposable
         _autoTaskCompletEvent.Reset();
 
         using (_cancellationTokenSource = new CancellationTokenSource())
-        using (ScheduledTaskSemaphore.Acquire(-1, _cancellationTokenSource.Token))
+        using (ScheduledTaskSemaphore.Acquire(_cancellationTokenSource.Token))
         {
             var seasonIds = new HashSet<Guid>(_seasonsToAnalyze);
             _seasonsToAnalyze.Clear();