Understanding through practice ;)

See man pages for SP_connect, SP_join, SP_multicast, SP_receive, SP_poll, 
SP_error, SP_leave, SP_disconnect.

$sperror holds either the integer spread error or a descriptive string 
depending on the context in which $sperror is used.

WWW: http://search.cpan.org/dist/Spread
Author: Theo Schlossnagle <jesus@cnds.jhu.edu>
