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/* Memory handling for the scope data structures.
Copyright (C) 2009-2017 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 <stdlib.h>
#include <ldsodefs.h>
#include <sysdep-cancel.h>
int
_dl_scope_free (void *old)
{
struct dl_scope_free_list *fsl;
#define DL_SCOPE_FREE_LIST_SIZE (sizeof (fsl->list) / sizeof (fsl->list[0]))
if (RTLD_SINGLE_THREAD_P)
free (old);
else if ((fsl = GL(dl_scope_free_list)) == NULL)
{
GL(dl_scope_free_list) = fsl = malloc (sizeof (*fsl));
if (fsl == NULL)
{
THREAD_GSCOPE_WAIT ();
free (old);
return 1;
}
else
{
fsl->list[0] = old;
fsl->count = 1;
}
}
else if (fsl->count < DL_SCOPE_FREE_LIST_SIZE)
fsl->list[fsl->count++] = old;
else
{
THREAD_GSCOPE_WAIT ();
while (fsl->count > 0)
free (fsl->list[--fsl->count]);
return 1;
}
return 0;
}
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