[GitHub] [pulsar-dotpulsar] PetterIsberg commented on a change in pull request #85: Add a watchdog to the connections

[GitBox <gi...@apache.org>]

PetterIsberg commented on a change in pull request #85:
URL: https://github.com/apache/pulsar-dotpulsar/pull/85#discussion_r685865186



##########
File path: src/DotPulsar/Internal/Watchdog.cs
##########
@@ -0,0 +1,61 @@
+namespace DotPulsar.Internal
+{
+    using System;
+    using System.Collections.Generic;
+    using System.Text;
+    using System.Threading;
+
+    public class Watchdog: IDisposable
+    {
+        private CancellationTokenSource _cancellationTokenSource;
+        private readonly TimeSpan _timeout;
+        private readonly Timer _timer;
+
+        public Watchdog(TimeSpan timeout)
+        {
+            _timeout = timeout;
+            _timer = new Timer(OnTimeout);
+            _cancellationTokenSource = new CancellationTokenSource();
+        }
+
+        public CancellationToken CancellationToken
+        {
+            get => _cancellationTokenSource.Token;
+        }
+
+        public void GotMessage()
+        {
+            ResetTimer();
+        }
+
+        public void Enable()
+        {
+            if (_cancellationTokenSource.IsCancellationRequested)
+                _cancellationTokenSource = new CancellationTokenSource();
+            ResetTimer();
+        }
+
+        public void Disable()
+        {
+            _timer.Change(Timeout.InfiniteTimeSpan, Timeout.InfiniteTimeSpan);

Review comment:
       > If dueTime is Timeout.Infinite, the callback method is never invoked; the timer is disabled, but can be re-enabled by calling Change and specifying a positive value for dueTime.
   
   This is disabling the timer without disposing it.




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