Re: [clisp-list] errors from socket-status

[Sam S. <sd...@gn...>]

Don Cohen wrote:
> I just notice that socket-status returns two values, while the doc
> only mentions one.

http://clisp.cons.org/impnotes/socket.html#so-status

The second value returned is the number of objects with non-NIL status, i.e., 
“actionable” objects. SOCKET:SOCKET-STATUS returns either due to a timeout or 
when this number is positive, i.e., if the timeout was NIL and 
SOCKET:SOCKET-STATUS did return, then the second value is positive (this is the 
reason NIL  is not treated as an empty LIST, but as an invalid argument).