diff options
Diffstat (limited to 'nptl/nptl-stack.h')
-rw-r--r-- | nptl/nptl-stack.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/nptl/nptl-stack.h b/nptl/nptl-stack.h new file mode 100644 index 0000000000..8631b61816 --- /dev/null +++ b/nptl/nptl-stack.h @@ -0,0 +1,50 @@ +/* Stack cache management for NPTL. + Copyright (C) 2002-2021 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. + + 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 <descr.h> +#include <list.h> +#include <stdbool.h> + +/* 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; + +#endif /* _NPTL_STACK_H */ |