/* Separate thread test for pthread_getaffinity_np, pthread_setaffinity_np.

   Copyright (C) 2015-2018 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 <pthread.h>

#include <stdbool.h>

#include <stdio.h>

#include <stdlib.h>

/* Defined for the benefit of tst-skeleton-thread-affinity.c, included

   below.  This variant runs the functions on a separate thread.  */

struct affinity_access_task

{

  pthread_t thread;

  cpu_set_t *set;

  size_t size;

  bool get;

  int result;

};

static void *

affinity_access_thread (void *closure)

{

  struct affinity_access_task *task = closure;

  if (task->get)

    task->result = pthread_getaffinity_np

      (task->thread, task->size, task->set);

  else

    task->result = pthread_setaffinity_np

      (task->thread, task->size, task->set);

  return NULL;

}

static int

run_affinity_access_thread (cpu_set_t *set, size_t size, bool get)

{

  struct affinity_access_task task =

    {

      .thread = pthread_self (),

      .set = set,

      .size = size,

      .get = get

    };

  pthread_t thr;

  int ret = pthread_create (&thr, NULL, affinity_access_thread, &task);

  if (ret != 0)

    {

      errno = ret;

      printf ("error: could not create affinity access thread: %m\n");

      abort ();

    }

  ret = pthread_join (thr, NULL);

  if (ret != 0)

    {

      errno = ret;

      printf ("error: could not join affinity access thread: %m\n");

      abort ();

    }

  if (task.result != 0)

    {

      errno = task.result;

      return -1;

    }

  return 0;

}

static int

setaffinity (size_t size, const cpu_set_t *set)

{

  return run_affinity_access_thread ((cpu_set_t *) set, size, false);

}

static int

getaffinity (size_t size, cpu_set_t *set)

{

  return run_affinity_access_thread (set, size, true);

}

#include "tst-skeleton-thread-affinity.c"