forked from KolibriOS/kolibrios
754f9336f0
git-svn-id: svn://kolibrios.org@4349 a494cfbc-eb01-0410-851d-a64ba20cac60
216 lines
6.1 KiB
C
216 lines
6.1 KiB
C
/* cairo - a vector graphics library with display and print output
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*
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* Copyright © 2009 Chris Wilson
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*
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* This library is free software; you can redistribute it and/or
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* modify it either under the terms of the GNU Lesser General Public
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* License version 2.1 as published by the Free Software Foundation
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* (the "LGPL") or, at your option, under the terms of the Mozilla
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* Public License Version 1.1 (the "MPL"). If you do not alter this
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* notice, a recipient may use your version of this file under either
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* the MPL or the LGPL.
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*
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* You should have received a copy of the LGPL along with this library
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* in the file COPYING-LGPL-2.1; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
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* You should have received a copy of the MPL along with this library
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* in the file COPYING-MPL-1.1
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*
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* The contents of this file are subject to the Mozilla Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
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* OF ANY KIND, either express or implied. See the LGPL or the MPL for
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* the specific language governing rights and limitations.
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*
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* The Original Code is the cairo graphics library.
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*
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* The Initial Developer of the Original Code is Chris Wilson.
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*
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* Contributor(s):
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* Chris Wilson <chris@chris-wilson.co.uk>
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*
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*/
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#ifndef CAIRO_LIST_INLINE_H
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#define CAIRO_LIST_INLINE_H
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#include "cairo-list-private.h"
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#define cairo_list_entry(ptr, type, member) \
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cairo_container_of(ptr, type, member)
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#define cairo_list_first_entry(ptr, type, member) \
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cairo_list_entry((ptr)->next, type, member)
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#define cairo_list_last_entry(ptr, type, member) \
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cairo_list_entry((ptr)->prev, type, member)
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#define cairo_list_foreach(pos, head) \
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for (pos = (head)->next; pos != (head); pos = pos->next)
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#define cairo_list_foreach_entry(pos, type, head, member) \
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for (pos = cairo_list_entry((head)->next, type, member);\
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&pos->member != (head); \
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pos = cairo_list_entry(pos->member.next, type, member))
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#define cairo_list_foreach_entry_safe(pos, n, type, head, member) \
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for (pos = cairo_list_entry ((head)->next, type, member),\
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n = cairo_list_entry (pos->member.next, type, member);\
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&pos->member != (head); \
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pos = n, n = cairo_list_entry (n->member.next, type, member))
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#define cairo_list_foreach_entry_reverse(pos, type, head, member) \
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for (pos = cairo_list_entry((head)->prev, type, member);\
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&pos->member != (head); \
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pos = cairo_list_entry(pos->member.prev, type, member))
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#define cairo_list_foreach_entry_reverse_safe(pos, n, type, head, member) \
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for (pos = cairo_list_entry((head)->prev, type, member),\
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n = cairo_list_entry (pos->member.prev, type, member);\
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&pos->member != (head); \
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pos = n, n = cairo_list_entry (n->member.prev, type, member))
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#ifdef CAIRO_LIST_DEBUG
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static inline void
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_cairo_list_validate (const cairo_list_t *link)
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{
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assert (link->next->prev == link);
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assert (link->prev->next == link);
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}
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static inline void
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cairo_list_validate (const cairo_list_t *head)
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{
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cairo_list_t *link;
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cairo_list_foreach (link, head)
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_cairo_list_validate (link);
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}
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static inline cairo_bool_t
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cairo_list_is_empty (const cairo_list_t *head);
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static inline void
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cairo_list_validate_is_empty (const cairo_list_t *head)
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{
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assert (head->next == NULL || (cairo_list_is_empty (head) && head->next == head->prev));
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}
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#else
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#define _cairo_list_validate(link)
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#define cairo_list_validate(head)
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#define cairo_list_validate_is_empty(head)
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#endif
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static inline void
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cairo_list_init (cairo_list_t *entry)
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{
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entry->next = entry;
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entry->prev = entry;
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}
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static inline void
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__cairo_list_add (cairo_list_t *entry,
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cairo_list_t *prev,
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cairo_list_t *next)
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{
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next->prev = entry;
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entry->next = next;
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entry->prev = prev;
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prev->next = entry;
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}
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static inline void
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cairo_list_add (cairo_list_t *entry, cairo_list_t *head)
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{
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cairo_list_validate (head);
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cairo_list_validate_is_empty (entry);
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__cairo_list_add (entry, head, head->next);
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cairo_list_validate (head);
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}
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static inline void
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cairo_list_add_tail (cairo_list_t *entry, cairo_list_t *head)
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{
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cairo_list_validate (head);
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cairo_list_validate_is_empty (entry);
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__cairo_list_add (entry, head->prev, head);
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cairo_list_validate (head);
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}
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static inline void
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__cairo_list_del (cairo_list_t *prev, cairo_list_t *next)
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{
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next->prev = prev;
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prev->next = next;
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}
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static inline void
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_cairo_list_del (cairo_list_t *entry)
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{
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__cairo_list_del (entry->prev, entry->next);
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}
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static inline void
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cairo_list_del (cairo_list_t *entry)
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{
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_cairo_list_del (entry);
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cairo_list_init (entry);
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}
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static inline void
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cairo_list_move (cairo_list_t *entry, cairo_list_t *head)
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{
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cairo_list_validate (head);
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__cairo_list_del (entry->prev, entry->next);
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__cairo_list_add (entry, head, head->next);
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cairo_list_validate (head);
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}
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static inline void
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cairo_list_move_tail (cairo_list_t *entry, cairo_list_t *head)
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{
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cairo_list_validate (head);
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__cairo_list_del (entry->prev, entry->next);
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__cairo_list_add (entry, head->prev, head);
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cairo_list_validate (head);
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}
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static inline void
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cairo_list_swap (cairo_list_t *entry, cairo_list_t *other)
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{
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__cairo_list_add (entry, other->prev, other->next);
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cairo_list_init (other);
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}
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static inline cairo_bool_t
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cairo_list_is_first (const cairo_list_t *entry,
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const cairo_list_t *head)
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{
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cairo_list_validate (head);
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return entry->prev == head;
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}
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static inline cairo_bool_t
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cairo_list_is_last (const cairo_list_t *entry,
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const cairo_list_t *head)
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{
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cairo_list_validate (head);
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return entry->next == head;
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}
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static inline cairo_bool_t
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cairo_list_is_empty (const cairo_list_t *head)
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{
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cairo_list_validate (head);
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return head->next == head;
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}
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static inline cairo_bool_t
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cairo_list_is_singular (const cairo_list_t *head)
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{
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cairo_list_validate (head);
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return head->next == head || head->next == head->prev;
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}
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#endif /* CAIRO_LIST_INLINE_H */
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