System.Net.Security.NegoState.ReadCallback C# (CSharp) Method

        private static void ReadCallback(IAsyncResult transportResult)
        {
            if (!(transportResult.AsyncState is LazyAsyncResult))
            {
                NetEventSource.Fail(transportResult, "State type is wrong, expected LazyAsyncResult.");
            }

            if (transportResult.CompletedSynchronously)
            {
                return;
            }

            LazyAsyncResult lazyResult = (LazyAsyncResult)transportResult.AsyncState;

            // Async completion.
            try
            {
                NegoState authState = (NegoState)lazyResult.AsyncObject;
                byte[] message = authState._framer.EndReadMessage(transportResult);
                authState.ProcessReceivedBlob(message, lazyResult);
            }
            catch (Exception e)
            {
                if (lazyResult.InternalPeekCompleted)
                {
                    // This will throw on a worker thread.
                    throw;
                }

                lazyResult.InvokeCallback(e);
            }
        }