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96 lines
2.5 KiB
C
96 lines
2.5 KiB
C
/* Separate thread test for pthread_getaffinity_np, pthread_setaffinity_np.
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Copyright (C) 2015-2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <pthread.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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/* Defined for the benefit of tst-skeleton-thread-affinity.c, included
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below. This variant runs the functions on a separate thread. */
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struct affinity_access_task
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{
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pthread_t thread;
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cpu_set_t *set;
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size_t size;
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bool get;
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int result;
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};
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static void *
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affinity_access_thread (void *closure)
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{
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struct affinity_access_task *task = closure;
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if (task->get)
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task->result = pthread_getaffinity_np
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(task->thread, task->size, task->set);
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else
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task->result = pthread_setaffinity_np
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(task->thread, task->size, task->set);
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return NULL;
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}
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static int
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run_affinity_access_thread (cpu_set_t *set, size_t size, bool get)
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{
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struct affinity_access_task task =
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{
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.thread = pthread_self (),
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.set = set,
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.size = size,
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.get = get
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};
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pthread_t thr;
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int ret = pthread_create (&thr, NULL, affinity_access_thread, &task);
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if (ret != 0)
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{
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errno = ret;
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printf ("error: could not create affinity access thread: %m\n");
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abort ();
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}
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ret = pthread_join (thr, NULL);
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if (ret != 0)
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{
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errno = ret;
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printf ("error: could not join affinity access thread: %m\n");
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abort ();
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}
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if (task.result != 0)
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{
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errno = task.result;
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return -1;
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}
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return 0;
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}
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static int
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setaffinity (size_t size, const cpu_set_t *set)
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{
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return run_affinity_access_thread ((cpu_set_t *) set, size, false);
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}
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static int
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getaffinity (size_t size, cpu_set_t *set)
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{
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return run_affinity_access_thread (set, size, true);
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}
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#include "tst-skeleton-thread-affinity.c"
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