70 lines
2.2 KiB
C
70 lines
2.2 KiB
C
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/* list.h - header for grub list */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2009 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef GRUB_LIST_HEADER
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#define GRUB_LIST_HEADER 1
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#include <grub/symbol.h>
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#include <grub/types.h>
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struct grub_list
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{
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struct grub_list *next;
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};
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typedef struct grub_list *grub_list_t;
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typedef int (*grub_list_hook_t) (grub_list_t item);
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void EXPORT_FUNC(grub_list_push) (grub_list_t *head, grub_list_t item);
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void * EXPORT_FUNC(grub_list_pop) (grub_list_t *head);
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void EXPORT_FUNC(grub_list_remove) (grub_list_t *head, grub_list_t item);
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void EXPORT_FUNC(grub_list_iterate) (grub_list_t head, grub_list_hook_t hook);
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/* This function doesn't exist, so if assertion is false for some reason, the
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linker would fail. */
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extern void* grub_assert_fail (void);
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#define GRUB_FIELD_MATCH(ptr, type, field) \
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((char *) &(ptr)->field == (char *) &((type) (ptr))->field)
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#define GRUB_AS_LIST(ptr) \
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(GRUB_FIELD_MATCH (ptr, grub_list_t, next) ? \
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(grub_list_t) ptr : grub_assert_fail ())
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#define GRUB_AS_LIST_P(pptr) \
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(GRUB_FIELD_MATCH (*pptr, grub_list_t, next) ? \
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(grub_list_t *) (void *) pptr : grub_assert_fail ())
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struct grub_named_list
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{
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struct grub_named_list *next;
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const char *name;
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};
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typedef struct grub_named_list *grub_named_list_t;
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void * EXPORT_FUNC(grub_named_list_find) (grub_named_list_t head,
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const char *name);
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#define GRUB_AS_NAMED_LIST(ptr) \
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((GRUB_FIELD_MATCH (ptr, grub_named_list_t, next) && \
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GRUB_FIELD_MATCH (ptr, grub_named_list_t, name))? \
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(grub_named_list_t) ptr : grub_assert_fail ())
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#endif /* ! GRUB_LIST_HEADER */
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