poll

   Provides users with a mechanism for multiplexing input/output
   over a set of file descriptors that reference open streams.

   This function is supported on OpenVMS Integrity servers and
   Alpha only.

   Format

     #include  <poll.h>

     int poll  (struct pollfd filedes [], nfds_t nfds, int timeout);
 

Additional information available:

Argument        Description     Return_Values