Init enter game

KcpSharp/Base/NetstandardShim/AwaitableSocketAsyncEventArgs.cs

@@ -0,0 +1,36 @@
+#if NEED_SOCKET_SHIM
+using System;
+using System.Net.Sockets;
+using System.Threading.Tasks;
+using System.Threading.Tasks.Sources;
+
+namespace KcpSharp
+{
+    internal class AwaitableSocketAsyncEventArgs : SocketAsyncEventArgs, IValueTaskSource
+    {
+        private ManualResetValueTaskSourceCore<bool> _mrvtsc =
+ new ManualResetValueTaskSourceCore<bool> { RunContinuationsAsynchronously = true };
+
+        void IValueTaskSource.GetResult(short token) => _mrvtsc.GetResult(token);
+        ValueTaskSourceStatus IValueTaskSource.GetStatus(short token) => _mrvtsc.GetStatus(token);
+        void IValueTaskSource.OnCompleted(Action<object?> continuation, object? state, short token, ValueTaskSourceOnCompletedFlags flags)
+            => _mrvtsc.OnCompleted(continuation, state, token, flags);
+
+        protected override void OnCompleted(SocketAsyncEventArgs e)
+        {
+            _mrvtsc.SetResult(true);
+        }
+
+        public ValueTask WaitAsync()
+        {
+            return new ValueTask(this, _mrvtsc.Version);
+        }
+
+        public void Reset()
+        {
+            _mrvtsc.Reset();
+        }
+    }
+}
+
+#endif