mirror of
https://github.com/radareorg/radare2.git
synced 2024-12-03 19:01:31 +00:00
141 lines
2.9 KiB
C
141 lines
2.9 KiB
C
/* list.c - grub list function */
|
|
/*
|
|
* GRUB -- GRand Unified Bootloader
|
|
* Copyright (C) 2009 Free Software Foundation, Inc.
|
|
*
|
|
* GRUB is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* GRUB 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <grub/list.h>
|
|
#include <grub/misc.h>
|
|
#include <grub/mm.h>
|
|
|
|
GRUB_EXPORT(grub_list_push);
|
|
GRUB_EXPORT(grub_list_pop);
|
|
GRUB_EXPORT(grub_list_remove);
|
|
GRUB_EXPORT(grub_list_iterate);
|
|
GRUB_EXPORT(grub_list_insert);
|
|
GRUB_EXPORT(grub_prio_list_insert);
|
|
GRUB_EXPORT(grub_named_list_find);
|
|
|
|
void
|
|
grub_list_push (grub_list_t *head, grub_list_t item)
|
|
{
|
|
item->next = *head;
|
|
*head = item;
|
|
}
|
|
|
|
void *
|
|
grub_list_pop (grub_list_t *head)
|
|
{
|
|
grub_list_t item;
|
|
|
|
item = *head;
|
|
if (item)
|
|
*head = item->next;
|
|
|
|
return item;
|
|
}
|
|
|
|
void
|
|
grub_list_remove (grub_list_t *head, grub_list_t item)
|
|
{
|
|
grub_list_t *p, q;
|
|
|
|
for (p = head, q = *p; q; p = &(q->next), q = q->next)
|
|
if (q == item)
|
|
{
|
|
*p = q->next;
|
|
break;
|
|
}
|
|
}
|
|
|
|
int
|
|
grub_list_iterate (grub_list_t head, grub_list_hook_t hook, void *closure)
|
|
{
|
|
grub_list_t p;
|
|
|
|
for (p = head; p; p = p->next)
|
|
if (hook (p, closure))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
grub_list_insert (grub_list_t *head, grub_list_t item,
|
|
grub_list_test_t test, void *closure)
|
|
{
|
|
grub_list_t *p, q;
|
|
|
|
for (p = head, q = *p; q; p = &(q->next), q = q->next)
|
|
if (test (item, q, closure))
|
|
break;
|
|
|
|
*p = item;
|
|
item->next = q;
|
|
}
|
|
|
|
void *
|
|
grub_named_list_find (grub_named_list_t head, const char *name)
|
|
{
|
|
while (head)
|
|
{
|
|
if (! grub_strcmp (head->name, name))
|
|
return head;
|
|
|
|
head = head->next;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct grub_prio_list_insert_closure
|
|
{
|
|
int inactive;
|
|
};
|
|
|
|
static int
|
|
grub_prio_list_insert_test (grub_prio_list_t new_item, grub_prio_list_t item,
|
|
void *closure)
|
|
{
|
|
struct grub_prio_list_insert_closure *c = closure;
|
|
int r;
|
|
|
|
r = grub_strcmp (new_item->name, item->name);
|
|
if (r)
|
|
return (r < 0);
|
|
|
|
if (new_item->prio >= (item->prio & GRUB_PRIO_LIST_PRIO_MASK))
|
|
{
|
|
item->prio &= ~GRUB_PRIO_LIST_FLAG_ACTIVE;
|
|
return 1;
|
|
}
|
|
|
|
c->inactive = 1;
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
grub_prio_list_insert (grub_prio_list_t *head, grub_prio_list_t nitem)
|
|
{
|
|
struct grub_prio_list_insert_closure c;
|
|
|
|
c.inactive = 0;
|
|
grub_list_insert (GRUB_AS_LIST_P (head), GRUB_AS_LIST (nitem),
|
|
(grub_list_test_t) grub_prio_list_insert_test, &c);
|
|
if (! c.inactive)
|
|
nitem->prio |= GRUB_PRIO_LIST_FLAG_ACTIVE;
|
|
}
|