출처 : http://developers.sun.com/solaris/articles/polling_efficient.html select(3c) and poll(2) are two legacy C interfaces often used to multiplex input and output over a set of file descriptors. As of the Solaris 7 Operating Environment (OE), the new /dev/poll interface -- poll(7d) -- provides a much more scalable means of polling large numbers of file descriptors for activity. Several means exi..