io/poll.c

   1 /* Copyright (C) 1994, 1995, 1996, 1997, 2001 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #include <sys/poll.h>
  20 #include <errno.h>
  21
  22 /* Poll the file descriptors described by the NFDS structures starting at
  23    FDS.  If TIMEOUT is nonzero and not -1, allow TIMEOUT milliseconds for
  24    an event to occur; if TIMEOUT is -1, block until an event occurs.
  25    Returns the number of file descriptors with events, zero if timed out,
  26    or -1 for errors.  */
  27
  28 int
  29 poll (fds, nfds, timeout)
  30      struct pollfd *fds;
  31      nfds_t nfds;
  32      int timeout;
  33 {
  34   __set_errno (ENOSYS);
  35   return -1;
  36 }
  37
  38 stub_warning (poll)
  39 #include <stub-tag.h>