67 lines
1.5 KiB
C
67 lines
1.5 KiB
C
/*
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* libZRTP SDK library, implements the ZRTP secure VoIP protocol.
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* Copyright (c) 2006-2009 Philip R. Zimmermann. All rights reserved.
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* Contact: http://philzimmermann.com
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* For licensing and other legal details, see the file zrtp_legal.c.
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*
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* Viktor Krykun <v.krikun at zfoneproject.com>
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*/
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#ifndef __ZRTP_LIST_H__
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#define __ZRTP_LIST_H__
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#include "zrtp_config.h"
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typedef struct mlist mlist_t;
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struct mlist
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{
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mlist_t *next;
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mlist_t *prev;
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};
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#if defined(__cplusplus)
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extern "C"
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{
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#endif
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/*
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* \warning
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* We cast pointer to integer. There is bad thing for 64 bit platforms but
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* calculated offset couldn't be bigger then 2x32 and it will be casted
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* to integer correctly.
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*/
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#define mlist_list_offset(type, list_name) ((size_t)&(((type*)0)->list_name))
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#define mlist_get_struct(type, list_name, list_ptr) \
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((type*)(((char*)(list_ptr)) - mlist_list_offset(type,list_name)))
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#define mlist_for_each(pos, head) \
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for (pos = (head)->next; pos != (head); pos = pos->next)
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#define mlist_for_each_safe(pos, n, head) \
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for (pos = (head)->next, n = pos->next; pos != (head); \
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pos = n, n = pos->next)
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void init_mlist(mlist_t* head);
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void mlist_add(mlist_t* head, mlist_t* node);
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void mlist_add_tail(mlist_t *head, mlist_t *node);
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void mlist_insert(mlist_t *prev, mlist_t *node);
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void mlist_del(mlist_t *node);
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void mlist_del_tail(mlist_t *node);
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mlist_t* mlist_get(mlist_t *head);
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mlist_t* mlist_get_tail(mlist_t *head);
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int mlist_isempty(mlist_t *head);
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#if defined(__cplusplus)
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}
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#endif
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#endif /*__ZRTP_LIST_H__ */
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