From f4725f5d81e8715a55ab3e4ea6791f903e9e9ad4 Mon Sep 17 00:00:00 2001
From: dionjansen <dionjansen@wlnss.com>
Date: Sun, 3 Jan 2021 19:05:29 +0100
Subject: [PATCH] Refactored elapsed calc

---
 src/DotPulsar/Internal/UnackedMessageTracker.cs | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/DotPulsar/Internal/UnackedMessageTracker.cs b/src/DotPulsar/Internal/UnackedMessageTracker.cs
index d52da34da..2b5ef030f 100644
--- a/src/DotPulsar/Internal/UnackedMessageTracker.cs
+++ b/src/DotPulsar/Internal/UnackedMessageTracker.cs
@@ -13,15 +13,16 @@
     public readonly struct AwaitingAck
     {
         public MessageId MessageId { get; }
-        public Stopwatch Stopwatch { get; }
+        public long Timestamp { get; }
 
         public AwaitingAck(MessageId messageId)
         {
             MessageId = messageId;
-            Stopwatch = Stopwatch.StartNew();
+            Timestamp = Stopwatch.GetTimestamp();
         }
 
-        public TimeSpan Elapsed => Stopwatch.Elapsed;
+        public TimeSpan Elapsed => TimeSpan.FromTicks(
+            (long) ((Stopwatch.GetTimestamp() - Timestamp) / (double)Stopwatch.Frequency * TimeSpan.TicksPerSecond));
     }
 
     public sealed class UnackedMessageTracker : IUnackedMessageTracker