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55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
/* A thread attribute with a small stack.
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Copyright (C) 2019-2020 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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<https://www.gnu.org/licenses/>. */
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#include <support/xthread.h>
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#include <allocate_once.h>
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static void *
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allocate (void *closure)
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{
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pthread_attr_t *result = malloc (sizeof (*result));
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xpthread_attr_init (result);
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support_set_small_thread_stack_size (result);
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return result;
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}
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static void
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deallocate (void *ptr, void *closure)
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{
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xpthread_attr_destroy (ptr);
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free (ptr);
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}
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static void *small_stack_attr;
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pthread_attr_t *
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support_small_stack_thread_attribute (void)
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{
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return allocate_once (&small_stack_attr, allocate, deallocate, NULL);
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}
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static void __attribute__ ((destructor))
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fini (void)
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{
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if (small_stack_attr != NULL)
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{
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deallocate (small_stack_attr, NULL);
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small_stack_attr = NULL;
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}
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}
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