/* poll file descriptors.  Hurd version.

   Copyright (C) 1998-2018 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)