| /* 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" |