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84 lines
2.5 KiB
C
84 lines
2.5 KiB
C
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/* 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 __PINOS_LIST_H__
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#define __PINOS_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 _PinosList PinosList;
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#include <spa/defs.h>
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struct _PinosList {
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PinosList *next;
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PinosList *prev;
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};
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static inline void
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pinos_list_init (PinosList *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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pinos_list_insert (PinosList *list,
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PinosList *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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pinos_list_remove (PinosList *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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elem->next = NULL;
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elem->prev = NULL;
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}
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#define PINOS_CONTAINER_OF(ptr, sample, member) \
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(__typeof__(sample))((char *)(ptr) - \
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offsetof(__typeof__(*sample), member))
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#define PINOS_LIST_FOREACH(pos, head, member) \
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for (pos = PINOS_CONTAINER_OF((head)->next, pos, member); \
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&pos->member != (head); \
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pos = PINOS_CONTAINER_OF(pos->member.next, pos, member))
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#define PINOS_LIST_FOREACH_SAFE(pos, tmp, head, member) \
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for (pos = PINOS_CONTAINER_OF((head)->next, pos, member), \
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tmp = PINOS_CONTAINER_OF((pos)->member.next, tmp, member); \
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&pos->member != (head); \
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pos = tmp, \
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tmp = PINOS_CONTAINER_OF(pos->member.next, tmp, member))
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* __PINOS_LIST_H__ */
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