mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-27 21:20:18 +00:00
62 lines
2.0 KiB
C
62 lines
2.0 KiB
C
/* Stack cache management for NPTL.
|
|
Copyright (C) 2002-2023 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/>. */
|
|
|
|
#ifndef _NPTL_STACK_H
|
|
#define _NPTL_STACK_H
|
|
|
|
#include <nptl/descr.h>
|
|
#include <ldsodefs.h>
|
|
#include <list.h>
|
|
#include <stdbool.h>
|
|
|
|
/* Maximum size of the cache, in bytes. 40 MiB by default. */
|
|
extern size_t __nptl_stack_cache_maxsize attribute_hidden;
|
|
|
|
/* Check whether the stack is still used or not. */
|
|
static inline bool
|
|
__nptl_stack_in_use (struct pthread *pd)
|
|
{
|
|
return pd->tid <= 0;
|
|
}
|
|
|
|
/* Remove the stack ELEM from its list. */
|
|
void __nptl_stack_list_del (list_t *elem);
|
|
libc_hidden_proto (__nptl_stack_list_del)
|
|
|
|
/* Add ELEM to a stack list. LIST can be either &GL (dl_stack_used)
|
|
or &GL (dl_stack_cache). */
|
|
void __nptl_stack_list_add (list_t *elem, list_t *list);
|
|
libc_hidden_proto (__nptl_stack_list_add)
|
|
|
|
/* Free allocated stack. */
|
|
extern void __nptl_deallocate_stack (struct pthread *pd);
|
|
libc_hidden_proto (__nptl_deallocate_stack)
|
|
|
|
/* Free stacks until cache size is lower than LIMIT. */
|
|
void __nptl_free_stacks (size_t limit) attribute_hidden;
|
|
|
|
/* Compute the size of the static TLS area based on data from the
|
|
dynamic loader. */
|
|
static inline size_t
|
|
__nptl_tls_static_size_for_stack (void)
|
|
{
|
|
return roundup (GLRO (dl_tls_static_size), GLRO (dl_tls_static_align));
|
|
}
|
|
|
|
#endif /* _NPTL_STACK_H */
|