mirror of
https://sourceware.org/git/glibc.git
synced 2025-11-03 20:53:13 +03:00
581c785bf3
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
99 lines
2.7 KiB
C
99 lines
2.7 KiB
C
/* Copyright (C) 2002-2022 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 _LIST_H
|
|
#define _LIST_H 1
|
|
|
|
/* Internal: doubly linked lists. */
|
|
|
|
/* The definitions of this file are adopted from those which can be
|
|
found in the Linux kernel headers to enable people familiar with
|
|
the latter find their way in these sources as well. */
|
|
|
|
#include <list_t.h>
|
|
#include <atomic.h>
|
|
|
|
/* Define a variable with the head and tail of the list. */
|
|
#define LIST_HEAD(name) \
|
|
list_t name = { &(name), &(name) }
|
|
|
|
/* Initialize a new list head. */
|
|
#define INIT_LIST_HEAD(ptr) \
|
|
(ptr)->next = (ptr)->prev = (ptr)
|
|
|
|
|
|
/* Add new element at the head of the list. */
|
|
static inline void
|
|
list_add (list_t *newp, list_t *head)
|
|
{
|
|
newp->next = head->next;
|
|
newp->prev = head;
|
|
head->next->prev = newp;
|
|
atomic_write_barrier ();
|
|
head->next = newp;
|
|
}
|
|
|
|
|
|
/* Remove element from list. */
|
|
static inline void
|
|
list_del (list_t *elem)
|
|
{
|
|
elem->next->prev = elem->prev;
|
|
elem->prev->next = elem->next;
|
|
}
|
|
|
|
|
|
/* Join two lists. */
|
|
static inline void
|
|
list_splice (list_t *add, list_t *head)
|
|
{
|
|
/* Do nothing if the list which gets added is empty. */
|
|
if (add != add->next)
|
|
{
|
|
add->next->prev = head;
|
|
add->prev->next = head->next;
|
|
head->next->prev = add->prev;
|
|
head->next = add->next;
|
|
}
|
|
}
|
|
|
|
|
|
/* Get typed element from list at a given position. */
|
|
#define list_entry(ptr, type, member) \
|
|
((type *) ((char *) (ptr) - (unsigned long) (&((type *) 0)->member)))
|
|
|
|
|
|
|
|
/* Iterate forward over the elements of the list. */
|
|
#define list_for_each(pos, head) \
|
|
for (pos = (head)->next; pos != (head); pos = pos->next)
|
|
|
|
|
|
/* Iterate forward over the elements of the list. */
|
|
#define list_for_each_prev(pos, head) \
|
|
for (pos = (head)->prev; pos != (head); pos = pos->prev)
|
|
|
|
|
|
/* Iterate backwards over the elements list. The list elements can be
|
|
removed from the list while doing this. */
|
|
#define list_for_each_prev_safe(pos, p, head) \
|
|
for (pos = (head)->prev, p = pos->prev; \
|
|
pos != (head); \
|
|
pos = p, p = pos->prev)
|
|
|
|
#endif /* list.h */
|