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