ed to
wait.
Immediately after
incoming data appear on one of the ports specified in <EM>inlist</EM>,
or writing become available on one of the ports specified in <EM>outlist</EM>,
or exceptional condition arises in one of the ports specified in
<EM>exceptlist</EM>,
<B>select</B> returns the number of ports that are available for I/O
operation, setting ones for the possible port s
in each of <EM>inlist, outlist and exceptlist</EM>.
</DD>
</DL>
<BR>
<BR>

<P>

<A NAME="22925"></A>
<B>unix:select-read-fd</B> <