Use lambda/factory version of AddSingleton

Turnerj · Turnerj · commit 6b0d9127076e · 2021-08-29T16:58:22.000+09:30
This allows the service provider to correctly dispose of our cache stacks when the application is terminated. Fixes #187
diff --git a/src/CacheTower/ServiceCollectionExtensions.cs b/src/CacheTower/ServiceCollectionExtensions.cs
@@ -17,7 +17,7 @@ public static class ServiceCollectionExtensions
 		/// <param name="cleanupFrequency">The frequency at which cache stack cleanup will be performed.</param>
 		public static void AddCacheStack(this IServiceCollection services, ICacheLayer[] layers, TimeSpan cleanupFrequency)
 		{
-			services.AddSingleton<ICacheStack>(new CacheStack(layers, new[] { new AutoCleanupExtension(cleanupFrequency) }));
+			services.AddSingleton<ICacheStack>(sp => new CacheStack(layers, new[] { new AutoCleanupExtension(cleanupFrequency) }));
 		}
 
 		/// <summary>
@@ -28,7 +28,7 @@ public static void AddCacheStack(this IServiceCollection services, ICacheLayer[]
 		/// <param name="extensions">The cache extensions to use.</param>
 		public static void AddCacheStack(this IServiceCollection services, ICacheLayer[] layers, ICacheExtension[] extensions)
 		{
-			services.AddSingleton<ICacheStack>(new CacheStack(layers, extensions));
+			services.AddSingleton<ICacheStack>(sp => new CacheStack(layers, extensions));
 		}
 
 		/// <summary>

Original file line number	Diff line number	Diff line change
`@@ -17,7 +17,7 @@ public static class ServiceCollectionExtensions`
`17`	`17`	`/// <param name="cleanupFrequency">The frequency at which cache stack cleanup will be performed.</param>`
`18`	`18`	`public static void AddCacheStack(this IServiceCollection services, ICacheLayer[] layers, TimeSpan cleanupFrequency)`
`19`	`19`	`{`
`20`		`- services.AddSingleton<ICacheStack>(new CacheStack(layers, new[] { new AutoCleanupExtension(cleanupFrequency) }));`
	`20`	`+ services.AddSingleton<ICacheStack>(sp => new CacheStack(layers, new[] { new AutoCleanupExtension(cleanupFrequency) }));`
`21`	`21`	`}`
`22`	`22`
`23`	`23`	`/// <summary>`
`@@ -28,7 +28,7 @@ public static void AddCacheStack(this IServiceCollection services, ICacheLayer[]`
`28`	`28`	`/// <param name="extensions">The cache extensions to use.</param>`
`29`	`29`	`public static void AddCacheStack(this IServiceCollection services, ICacheLayer[] layers, ICacheExtension[] extensions)`
`30`	`30`	`{`
`31`		`- services.AddSingleton<ICacheStack>(new CacheStack(layers, extensions));`
	`31`	`+ services.AddSingleton<ICacheStack>(sp => new CacheStack(layers, extensions));`
`32`	`32`	`}`
`33`	`33`
`34`	`34`	`/// <summary>`