internal virtual void EndSend(IAsyncResult asyncResult)
{
if (asyncResult == null)
{
throw new ArgumentNullException(nameof(asyncResult));
}
if (Content != null)
{
Content.EndSend(asyncResult);
}
else
{
LazyAsyncResult castedAsyncResult = asyncResult as LazyAsyncResult;
if (castedAsyncResult == null || castedAsyncResult.AsyncObject != this)
{
throw new ArgumentException(Strings.net_io_invalidasyncresult);
}
if (castedAsyncResult.EndCalled)
{
throw new InvalidOperationException(string.Format(Strings.net_io_invalidendcall, nameof(EndSend)));
}
castedAsyncResult.InternalWaitForCompletion();
castedAsyncResult.EndCalled = true;
if (castedAsyncResult.Result is Exception e)
{
ExceptionDispatchInfoThrower.Throw(e);
}
}
}
