feat: Added TimeProvider.GetElapsedTime(long startingTimestamp)

Author: egil

CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.8.0]
+
+- Added `TimeProvider.GetElapsedTime(long startingTimestamp)`
+
 ## [0.7.0]
 
 - Add support for libraries that target netstandard 2.0.

src/TimeScheduler/System/TimeProvider.cs

@@ -104,6 +104,13 @@ public TimeSpan GetElapsedTime(long startingTimestamp, long endingTimestamp)
         return new TimeSpan((long)((endingTimestamp - startingTimestamp) * ((double)TimeSpan.TicksPerSecond / timestampFrequency)));
     }
 
+    /// <summary>
+    /// Gets the elapsed time since the <paramref name="startingTimestamp"/> value retrieved using <see cref="GetTimestamp"/>.
+    /// </summary>
+    /// <param name="startingTimestamp">The timestamp marking the beginning of the time period.</param>
+    /// <returns>A <see cref="TimeSpan"/> for the elapsed time between the starting timestamp and the time of this call./></returns>
+    public TimeSpan GetElapsedTime(long startingTimestamp) => GetElapsedTime(startingTimestamp, GetTimestamp());
+
     /// <summary>Creates a new <see cref="ITimer"/> instance, using <see cref="TimeSpan"/> values to measure time intervals.</summary>
     /// <param name="callback">
     /// A delegate representing a method to be executed when the timer fires. The method specified for callback should be reentrant,

src/TimeScheduler/TimeScheduler.csproj

@@ -3,7 +3,7 @@
   <PropertyGroup>
     <TargetFrameworks>net6.0;netstandard2.0</TargetFrameworks>
     <Title>Scheduler</Title>
-    <Version>0.7.2</Version>
+    <Version>0.8.0</Version>
     <Company>Egil Hansen</Company>
     <Authors>Egil Hansen</Authors>
     <Description>