send before considering the connection dead and notifying the application layer.
This controls the TCP_KEEPCNT socket option (see
<citerefentry><refentrytitle>socket</refentrytitle><manvolnum>7</manvolnum></citerefentry>
send before considering the connection dead and notifying the application layer.
This controls the TCP_KEEPCNT socket option (see
<citerefentry><refentrytitle>socket</refentrytitle><manvolnum>7</manvolnum></citerefentry>