Add TaskQueue class

Stone_Red-C-Sharp-Utilities/TaskQueue.cs

@@ -0,0 +1,59 @@
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace Stone_Red_C_Sharp_Utilities
+{
+    /// <summary>
+    /// An <see langword="asnyc"/> queue.
+    /// </summary>
+    public class TaskQueue
+    {
+        private readonly SemaphoreSlim semaphore;
+
+        /// <summary>
+        /// Creates a new <see cref="TaskQueue"/>
+        /// </summary>
+        public TaskQueue()
+        {
+            semaphore = new SemaphoreSlim(1);
+        }
+
+        /// <summary>
+        /// Enqueues a <see cref="Func{T}"/>.
+        /// </summary>
+        /// <typeparam name="T">The return type.</typeparam>
+        /// <param name="function">The code to enqueue.</param>
+        /// <returns>A <see cref="Task{T}"/> to await</returns>
+        public async Task<T> Enqueue<T>(Func<T> function)
+        {
+            await semaphore.WaitAsync();
+            try
+            {
+                return await Task.Run(function);
+            }
+            finally
+            {
+                _ = semaphore.Release();
+            }
+        }
+
+        /// <summary>
+        /// Enqueues an <see cref="Action"/>.
+        /// </summary>
+        /// <param name="function">The code to enqueue.</param>
+        /// <returns>A <see cref="Task{T}"/> to await</returns>
+        public async Task Enqueue(Action function)
+        {
+            await semaphore.WaitAsync();
+            try
+            {
+                await Task.Run(function);
+            }
+            finally
+            {
+                _ = semaphore.Release();
+            }
+        }
+    }
+}