bugfix Parallel CLI Runner

Additional needed classes

NfcC7_DLL/NfcHanler/Utils/ProcessExtensions.cs

@@ -0,0 +1,36 @@
+using System.Diagnostics;
+
+namespace NfcC7_DLL.NfcHanler.Utils
+{
+    public static class ProcessExtensions
+    {
+        public static Task WaitForExitAsync(this Process process, CancellationToken cancellationToken = default)
+        {
+            if (process == null) throw new ArgumentNullException(nameof(process));
+            if (process.HasExited) return Task.CompletedTask;
+
+            var tcs = new TaskCompletionSource<object>(TaskCreationOptions.RunContinuationsAsynchronously);
+
+            EventHandler handler = null;
+            handler = (s, e) =>
+            {
+                try { tcs.TrySetResult(null); }
+                finally { process.Exited -= handler; }
+            };
+
+            process.EnableRaisingEvents = true;
+            process.Exited += handler;
+
+            if (cancellationToken.CanBeCanceled)
+            {
+                cancellationToken.Register(() =>
+                {
+                    tcs.TrySetCanceled(cancellationToken);
+                    process.Exited -= handler;
+                });
+            }
+
+            return tcs.Task;
+        }
+    }
+}

TBF/Rig/RegisterReaders/PoseidonCmdStartStop/ProcessExtensions.cs

@@ -0,0 +1,39 @@
+using System;
+using System.Diagnostics;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace TBF.Rig.RegisterReaders.PoseidonCmdStartStop
+{
+    public static class ProcessExtensions
+    {
+        public static Task WaitForExitAsync(this Process process, CancellationToken cancellationToken = default)
+        {
+            if (process == null) throw new ArgumentNullException(nameof(process));
+            if (process.HasExited) return Task.CompletedTask;
+
+            var tcs = new TaskCompletionSource<object>(TaskCreationOptions.RunContinuationsAsynchronously);
+
+            EventHandler handler = null;
+            handler = (s, e) =>
+            {
+                try { tcs.TrySetResult(null); }
+                finally { process.Exited -= handler; }
+            };
+
+            process.EnableRaisingEvents = true;
+            process.Exited += handler;
+
+            if (cancellationToken.CanBeCanceled)
+            {
+                cancellationToken.Register(() =>
+                {
+                    tcs.TrySetCanceled(cancellationToken);
+                    process.Exited -= handler;
+                });
+            }
+
+            return tcs.Task;
+        }
+    }
+}