Update

ConsoleApp2/Services/ProcessContext.cs

@@ -0,0 +1,44 @@
+namespace ConsoleApp2.Services;
+
+public class ProcessContext
+{
+    private int _inputCount;
+    private int _transformCount;
+    private int _outputCount;
+    public bool IsInputCompleted { get; private set; }
+    public bool IsTransformCompleted { get; private set; }
+    public bool IsOutputCompleted { get; private set; }
+
+    public int InputCount
+    {
+        get => _inputCount;
+        private set => _inputCount = value;
+    }
+
+    public int TransformCount
+    {
+        get => _transformCount;
+        private set => _transformCount = value;
+    }
+
+    public int OutputCount
+    {
+        get => _outputCount;
+        private set => _outputCount = value;
+    }
+
+    public void CompleteInput() => IsInputCompleted = true;
+
+    public void CompleteTransform() => IsTransformCompleted = true;
+    public void CompleteOutput() => IsOutputCompleted = true;
+
+    public void AddInput() => Interlocked.Increment(ref _inputCount);
+
+    public void AddInput(int count) => Interlocked.Add(ref _inputCount, count);
+
+    public void AddTransform() => Interlocked.Increment(ref _transformCount);
+    public void AddTransform(int count) => Interlocked.Add(ref _transformCount, count);
+
+    public void AddOutput() => Interlocked.Increment(ref _outputCount);
+    public void AddOutput(int count) => Interlocked.Add(ref _outputCount, count);
+}