  TCP/IP (NBIO) socket options? 
 The Question is:
 
How do I set Socket (setsockopt) as nbio?
 
 
 The Answer is:
 
  You'll want to take a look at the TCP/IP Services information around
  the NBIO item -- look specifically for UCX$M_MSG_NBIO and NBIO, and
  particularly check the documentation of send().
 
