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Set timeout in tcp_select
timeout.tv_sec = to_sec;
Set non-blocking to "connd", as well.
fcntl(connd, F_SETFL, O_NONBLOCK)
tcp_select(connd,...) for wolfSSL_accept, read, write
make all 3 args non-NULL for select. NULL arg derives error on MacOS.
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Totally changed to a single polling point.