76 lines
1.7 KiB
C
76 lines
1.7 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2005 Free Software Foundation, Inc.
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*
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* This program 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 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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 this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <grub/normal.h>
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#include <grub/mm.h>
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static struct grub_context context =
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{
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.menu_list = 0
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};
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/* Return a pointer to the context. */
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grub_context_t
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grub_context_get (void)
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{
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return &context;
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}
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/* Return the current menu. */
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grub_menu_t
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grub_context_get_current_menu (void)
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{
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if (context.menu_list)
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return context.menu_list->menu;
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return 0;
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}
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/* Push a new menu. Return this menu. If any error occurs, return NULL. */
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grub_menu_t
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grub_context_push_menu (grub_menu_t menu)
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{
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grub_menu_list_t menu_list;
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menu_list = grub_malloc (sizeof (*menu_list));
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if (! menu_list)
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return 0;
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menu_list->menu = menu;
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menu_list->next = context.menu_list;
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context.menu_list = menu_list;
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return menu;
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}
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/* Pop a menu. */
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void
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grub_context_pop_menu (void)
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{
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grub_menu_list_t menu_list;
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menu_list = context.menu_list;
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if (menu_list)
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{
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context.menu_list = menu_list->next;
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grub_free (menu_list);
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}
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}
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