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85 lines
2.6 KiB
C
85 lines
2.6 KiB
C
/* Simple Plugin API
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* Copyright (C) 2016 Wim Taymans <wim.taymans@gmail.com>
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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 under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __SPA_LIST_H__
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#define __SPA_LIST_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct _SpaList SpaList;
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#include <spa/defs.h>
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struct _SpaList {
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SpaList *next;
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SpaList *prev;
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};
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static inline void
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spa_list_init (SpaList *list)
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{
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list->next = list;
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list->prev = list;
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}
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static inline void
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spa_list_insert (SpaList *list,
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SpaList *elem)
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{
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elem->prev = list;
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elem->next = list->next;
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list->next = elem;
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elem->next->prev = elem;
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}
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static inline void
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spa_list_remove (SpaList *elem)
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{
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elem->prev->next = elem->next;
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elem->next->prev = elem->prev;
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}
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#define spa_list_is_empty(l) ((l)->next == (l))
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#define spa_list_first(head, type, member) \
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SPA_CONTAINER_OF((head)->next, type, member)
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#define spa_list_last(item, type, member) \
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SPA_CONTAINER_OF((head)->prev, type, member)
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#define spa_list_for_each(pos, head, member) \
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for (pos = SPA_CONTAINER_OF((head)->next, __typeof__(*pos), member); \
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&pos->member != (head); \
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pos = SPA_CONTAINER_OF(pos->member.next, __typeof__(*pos), member))
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#define spa_list_for_each_safe(pos, tmp, head, member) \
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for (pos = SPA_CONTAINER_OF((head)->next, __typeof__(*pos), member), \
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tmp = SPA_CONTAINER_OF((pos)->member.next, __typeof__(*tmp), member); \
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&pos->member != (head); \
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pos = tmp, \
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tmp = SPA_CONTAINER_OF(pos->member.next, __typeof__(*tmp), member))
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* __SPA_LIST_H__ */
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