/* Linux poll implementation.

   Copyright (C) 2017-2018 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 <errno.h>

#include <sys/poll.h>

#include <sysdep-cancel.h>

#include <sys/syscall.h>

int

__poll (struct pollfd *fds, nfds_t nfds, int timeout)

{

#ifdef __NR_poll

  return SYSCALL_CANCEL (poll, fds, nfds, timeout);

#else

  struct timespec timeout_ts;

  struct timespec *timeout_ts_p = NULL;

  if (timeout >= 0)

    {

      timeout_ts.tv_sec = timeout / 1000;

      timeout_ts.tv_nsec = (timeout % 1000) * 1000000;

      timeout_ts_p = &timeout_ts;

    }

  return SYSCALL_CANCEL (ppoll, fds, nfds, timeout_ts_p, NULL, 0);

#endif

}

libc_hidden_def (__poll)

weak_alias (__poll, poll)

strong_alias (__poll, __libc_poll)