System.Net.Security.SslStreamInternal.EndWrite C# (CSharp) Method

        internal void EndWrite(IAsyncResult asyncResult)
        {
            if (asyncResult == null)
            {
                throw new ArgumentNullException(nameof(asyncResult));
            }

            LazyAsyncResult lazyResult = asyncResult as LazyAsyncResult;
            if (lazyResult == null)
            {
                throw new ArgumentException(SR.Format(SR.net_io_async_result, asyncResult.GetType().FullName), nameof(asyncResult));
            }

            if (Interlocked.Exchange(ref _nestedWrite, 0) == 0)
            {
                throw new InvalidOperationException(SR.Format(SR.net_io_invalidendcall, "EndWrite"));
            }

            // No "artificial" timeouts implemented so far, InnerStream controls timeout.
            lazyResult.InternalWaitForCompletion();

            if (lazyResult.Result is Exception)
            {
                if (lazyResult.Result is IOException)
                {
                    throw (Exception)lazyResult.Result;
                }

                throw new IOException(SR.net_io_write, (Exception)lazyResult.Result);
            }
        }