Adjusting Duration initialisation

ros2-dotnet · Nov 3, 2023 · 4b272d2 · 4b272d2
1 parent fb9f892
commit 4b272d2
Showing 1 changed file with 4 additions and 4 deletions.
diff --git a/rcldotnet/Clock.cs b/rcldotnet/Clock.cs
@@ -64,18 +64,18 @@ public enum ClockChange
 
     // Internal as TimeSpan should be user-facing.
     [StructLayout(LayoutKind.Sequential)]
-    internal struct Duration
+    internal readonly struct Duration
     {
-        public long nanoseconds;
+        private readonly long _nanoseconds;
 
         public Duration(TimeSpan timeSpan)
         {
-            nanoseconds = (long)(timeSpan.TotalMilliseconds * TimeConstants.NanosecondsPerMillisecond);
+            _nanoseconds = checked(timeSpan.Ticks * TimeConstants.NanosecondsPerTimespanTick);
         }
 
         public TimeSpan AsTimespan()
         {
-            return new TimeSpan(nanoseconds / TimeConstants.NanosecondsPerTimespanTick);
+            return new TimeSpan(_nanoseconds / TimeConstants.NanosecondsPerTimespanTick);
         }
     }