123 lines
3.9 KiB
C
123 lines
3.9 KiB
C
/* list.h - header for grub list */
|
|
/*
|
|
* 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/>.
|
|
*/
|
|
|
|
#ifndef GRUB_LIST_HEADER
|
|
#define GRUB_LIST_HEADER 1
|
|
|
|
#include <grub/symbol.h>
|
|
#include <grub/types.h>
|
|
|
|
struct grub_list
|
|
{
|
|
struct grub_list *next;
|
|
};
|
|
typedef struct grub_list *grub_list_t;
|
|
|
|
typedef int (*grub_list_hook_t) (grub_list_t item);
|
|
typedef int (*grub_list_test_t) (grub_list_t new_item, grub_list_t item);
|
|
|
|
void EXPORT_FUNC(grub_list_push) (grub_list_t *head, grub_list_t item);
|
|
void * EXPORT_FUNC(grub_list_pop) (grub_list_t *head);
|
|
void EXPORT_FUNC(grub_list_remove) (grub_list_t *head, grub_list_t item);
|
|
int EXPORT_FUNC(grub_list_iterate) (grub_list_t head, grub_list_hook_t hook);
|
|
void EXPORT_FUNC(grub_list_insert) (grub_list_t *head, grub_list_t item,
|
|
grub_list_test_t test);
|
|
|
|
/* This function doesn't exist, so if assertion is false for some reason, the
|
|
linker would fail. */
|
|
#ifdef APPLE_CC
|
|
/* This approach fails with Apple's gcc. Use grub_abort. */
|
|
#include <grub/misc.h>
|
|
static inline void *
|
|
grub_assert_fail (void)
|
|
{
|
|
grub_abort ();
|
|
return 0;
|
|
}
|
|
#else
|
|
extern void* grub_assert_fail (void);
|
|
#endif
|
|
|
|
#define GRUB_FIELD_MATCH(ptr, type, field) \
|
|
((char *) &(ptr)->field == (char *) &((type) (ptr))->field)
|
|
|
|
#define GRUB_AS_LIST(ptr) \
|
|
(GRUB_FIELD_MATCH (ptr, grub_list_t, next) ? \
|
|
(grub_list_t) ptr : grub_assert_fail ())
|
|
|
|
#define GRUB_AS_LIST_P(pptr) \
|
|
(GRUB_FIELD_MATCH (*pptr, grub_list_t, next) ? \
|
|
(grub_list_t *) (void *) pptr : grub_assert_fail ())
|
|
|
|
struct grub_named_list
|
|
{
|
|
struct grub_named_list *next;
|
|
char *name;
|
|
};
|
|
typedef struct grub_named_list *grub_named_list_t;
|
|
|
|
void * EXPORT_FUNC(grub_named_list_find) (grub_named_list_t head,
|
|
const char *name);
|
|
|
|
#define GRUB_AS_NAMED_LIST(ptr) \
|
|
((GRUB_FIELD_MATCH (ptr, grub_named_list_t, next) && \
|
|
GRUB_FIELD_MATCH (ptr, grub_named_list_t, name))? \
|
|
(grub_named_list_t) ptr : grub_assert_fail ())
|
|
|
|
#define GRUB_AS_NAMED_LIST_P(pptr) \
|
|
((GRUB_FIELD_MATCH (*pptr, grub_named_list_t, next) && \
|
|
GRUB_FIELD_MATCH (*pptr, grub_named_list_t, name))? \
|
|
(grub_named_list_t *) (void *) pptr : grub_assert_fail ())
|
|
|
|
#define GRUB_PRIO_LIST_PRIO_MASK 0xff
|
|
#define GRUB_PRIO_LIST_FLAG_ACTIVE 0x100
|
|
|
|
struct grub_prio_list
|
|
{
|
|
struct grub_prio_list *next;
|
|
char *name;
|
|
int prio;
|
|
};
|
|
typedef struct grub_prio_list *grub_prio_list_t;
|
|
|
|
void EXPORT_FUNC(grub_prio_list_insert) (grub_prio_list_t *head,
|
|
grub_prio_list_t item);
|
|
|
|
static inline void
|
|
grub_prio_list_remove (grub_prio_list_t *head, grub_prio_list_t item)
|
|
{
|
|
if ((item->prio & GRUB_PRIO_LIST_FLAG_ACTIVE) && (item->next))
|
|
item->next->prio |= GRUB_PRIO_LIST_FLAG_ACTIVE;
|
|
grub_list_remove (GRUB_AS_LIST_P (head), GRUB_AS_LIST (item));
|
|
}
|
|
|
|
#define GRUB_AS_PRIO_LIST(ptr) \
|
|
((GRUB_FIELD_MATCH (ptr, grub_prio_list_t, next) && \
|
|
GRUB_FIELD_MATCH (ptr, grub_prio_list_t, name) && \
|
|
GRUB_FIELD_MATCH (ptr, grub_prio_list_t, prio))? \
|
|
(grub_prio_list_t) ptr : grub_assert_fail ())
|
|
|
|
#define GRUB_AS_PRIO_LIST_P(pptr) \
|
|
((GRUB_FIELD_MATCH (*pptr, grub_prio_list_t, next) && \
|
|
GRUB_FIELD_MATCH (*pptr, grub_prio_list_t, name) && \
|
|
GRUB_FIELD_MATCH (*pptr, grub_prio_list_t, prio))? \
|
|
(grub_prio_list_t *) (void *) pptr : grub_assert_fail ())
|
|
|
|
#endif /* ! GRUB_LIST_HEADER */
|