text: /* poll file descriptors.  Hurd version.
     Copyright (C) 1998-2017 Free Software Foundation, Inc.
     This file is part of the GNU C Library.
  
     The GNU C Library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Lesser General Public
     License as published by the Free Software Foundation; either
     version 2.1 of the License, or (at your option) any later version.
  
     The GNU C Library is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     Lesser General Public License for more details.
  
     You should have received a copy of the GNU Lesser General Public
     License along with the GNU C Library; if not, see
     <http://www.gnu.org/licenses/>.  */
  
  #include <sys/poll.h>
  #include <sys/time.h>
  #include <hurd.h>
  #include <hurd/fd.h>
  
  /* Poll the file descriptors described by the NFDS structures starting at
     FDS.  If TIMEOUT is nonzero and not -1, allow TIMEOUT milliseconds for
     an event to occur; if TIMEOUT is -1, block until an event occurs.
     Returns the number of file descriptors with events, zero if timed out,
     or -1 for errors.  */
  
  int
  __poll (struct pollfd *fds, nfds_t nfds, int timeout)
  {
    struct timespec ts, *to;
  
    if (timeout < 0)
      to = NULL;
    else
      {
        ts.tv_sec = timeout / 1000;
        ts.tv_nsec = (timeout % 1000) * 1000000;
        to = &ts;
      }
  
    return _hurd_select (nfds, fds, NULL, NULL, NULL, to, NULL);
  }
  libc_hidden_def (__poll)
  weak_alias (__poll, poll)
  