Github user jpeach commented on the issue:
https://github.com/apache/trafficserver/pull/947
I don't think this is the right approach.
First, ``read_signal_error`` and ``write_signal_error`` don't need to be
made non-static since you already have
``UnixNetVConnection::readSignalError()``.
Second, the ``err`` argument to ``read_signal_error`` is supposed to be an
``errno``, but you are passing and eventio bitmask. That's not really what is
supposed to happen here.
Third, the logic in ``NetHandler::mainNetEvent`` is now weird. There is a
subsequent check for ``get_ev_events(pd, x) & (EVENTIO_READ | EVENTIO_ERROR)``,
but the error case would never be true now.
Finally, does this change mean that ``VC_EVENT_EOS`` is now delivered as
``VC_EVENT_ERROR``? The ``EVENTIO_ERROR`` bitmask includes the ``HUP`` event,
which I suspect means that the socket was closed. I think the expectation is
that this would be detected in ``read_from_net``, but now it looks like you
would get an error event.
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