SynchronizeInvoker => Dinah.Core.Threading.SynchronizeInvoker

LibationWinForms/SynchronizeInvoker.cs

@@ -1,122 +0,0 @@
-using System;
-using System.ComponentModel;
-using System.Threading;
-
-namespace LibationWinForms
-{
-	public class SynchronizeInvoker : ISynchronizeInvoke
-	{
-		public bool InvokeRequired => Thread.CurrentThread.ManagedThreadId != InstanceThreadId;
-		private int InstanceThreadId { get; set; } = Thread.CurrentThread.ManagedThreadId;
-		private SynchronizationContext SyncContext { get; } = SynchronizationContext.Current;
-
-		public SynchronizeInvoker()
-		{
-			if (SyncContext is null)
-				throw new NullReferenceException($"Could not capture a current {nameof(SynchronizationContext)}");
-		}
-
-		public IAsyncResult BeginInvoke(Action action) => BeginInvoke(action, null);
-		public IAsyncResult BeginInvoke(Delegate method) => BeginInvoke(method, null);
-		public IAsyncResult BeginInvoke(Delegate method, object[] args)
-		{
-			var tme = new ThreadMethodEntry(method, args);
-
-			if (InvokeRequired)
-			{
-				SyncContext.Post(OnSendOrPostCallback, tme);
-			}
-			else
-			{
-				tme.Complete();
-				tme.CompletedSynchronously = true;
-			}
-			return tme;
-		}
-
-		public object EndInvoke(IAsyncResult result)
-		{
-			if (result is not ThreadMethodEntry crossThread)
-				throw new ArgumentException($"{nameof(result)} was not returned by {nameof(SynchronizeInvoker)}.{nameof(BeginInvoke)}");
-
-			if (!crossThread.IsCompleted) 
-				crossThread.AsyncWaitHandle.WaitOne();
-
-			return crossThread.ReturnValue;
-		}
-
-		public object Invoke(Action action) => Invoke(action, null);
-		public object Invoke(Delegate method) => Invoke(method, null);
-		public object Invoke(Delegate method, object[] args)
-		{
-			var tme = new ThreadMethodEntry(method, args);
-
-			if (InvokeRequired)
-			{
-				SyncContext.Send(OnSendOrPostCallback, tme);
-			}
-			else
-			{
-				tme.Complete();
-				tme.CompletedSynchronously = true;
-			}
-
-			return tme.ReturnValue;
-		}
-
-		/// <summary>
-		/// This callback executes on the SynchronizationContext thread.
-		/// </summary>
-		private static void OnSendOrPostCallback(object asyncArgs)
-		{
-			var e = asyncArgs as ThreadMethodEntry;
-			e.Complete();
-		}
-
-		private class ThreadMethodEntry : IAsyncResult
-		{
-			public object AsyncState => null;
-			public bool CompletedSynchronously { get; internal set; }
-			public bool IsCompleted { get; private set; }
-			public object ReturnValue { get; private set; }
-			public WaitHandle AsyncWaitHandle => completedEvent;
-
-			private Delegate method;
-			private object[] args;
-			private ManualResetEvent completedEvent;
-
-			public ThreadMethodEntry(Delegate method, object[] args)
-			{
-				this.method = method;
-				this.args = args;
-				completedEvent = new ManualResetEvent(initialState: false);				
-			}
-
-			public void Complete()
-			{
-				try
-				{
-					switch (method)
-					{
-						case Action actiton:
-							actiton();
-							break;
-						default:
-							ReturnValue = method.DynamicInvoke(args);
-							break;
-					}
-				}
-				finally
-				{
-					IsCompleted = true;
-					completedEvent.Set();
-				}
-			}
-
-			~ThreadMethodEntry()
-			{
-				completedEvent.Close();
-			}
-		}
-	}
-}