/* Copyright (C) 2004-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.

   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; see the file COPYING.LIB.  If

   not, see <http://www.gnu.org/licenses/>.  */

#ifndef _AIO_MISC_H

# include_next <aio_misc.h>

# include <limits.h>

# include <pthread.h>

# include <signal.h>

# include <sysdep.h>

# define aio_start_notify_thread __aio_start_notify_thread

# define aio_create_helper_thread __aio_create_helper_thread

extern inline void

__aio_start_notify_thread (void)

{

  sigset_t ss;

  sigemptyset (&ss);

  INTERNAL_SYSCALL_DECL (err);

  INTERNAL_SYSCALL (rt_sigprocmask, err, 4, SIG_SETMASK, &ss, NULL, _NSIG / 8);

}

extern inline int

__aio_create_helper_thread (pthread_t *threadp, void *(*tf) (void *),

			    void *arg)

{

  pthread_attr_t attr;

  /* Make sure the thread is created detached.  */

  pthread_attr_init (&attr);

  pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);

  /* The helper thread needs only very little resources.  */

  (void) pthread_attr_setstacksize (&attr, __pthread_get_minstack (&attr));

  /* Block all signals in the helper thread.  To do this thoroughly we

     temporarily have to block all signals here.  */

  sigset_t ss;

  sigset_t oss;

  sigfillset (&ss);

  INTERNAL_SYSCALL_DECL (err);

  INTERNAL_SYSCALL (rt_sigprocmask, err, 4, SIG_SETMASK, &ss, &oss, _NSIG / 8);

  int ret = pthread_create (threadp, &attr, tf, arg);

  /* Restore the signal mask.  */

  INTERNAL_SYSCALL (rt_sigprocmask, err, 4, SIG_SETMASK, &oss, NULL,

		    _NSIG / 8);

  (void) pthread_attr_destroy (&attr);

  return ret;

}

#endif