/** 
 @file  list.h
 @brief ENet list management 
*/
#ifndef __ENET_LIST_H__
#define __ENET_LIST_H__

#include <stdlib.h>

typedef struct _ENetListNode
{
	struct _ENetListNode *next;
	struct _ENetListNode *previous;
} ENetListNode;

typedef ENetListNode *ENetListIterator;

typedef struct _ENetList
{
	ENetListNode sentinel;
} ENetList;

extern void enet_list_clear(ENetList *);

extern ENetListIterator enet_list_insert(ENetListIterator, void *);
extern void *enet_list_remove(ENetListIterator);
extern ENetListIterator enet_list_move(ENetListIterator, void *, void *);

extern size_t enet_list_size(ENetList *);

#define enet_list_begin(list) ((list)->sentinel.next)
#define enet_list_end(list) (&(list)->sentinel)

#define enet_list_empty(list) (enet_list_begin(list) == enet_list_end(list))

#define enet_list_next(iterator) ((iterator)->next)
#define enet_list_previous(iterator) ((iterator)->previous)

#define enet_list_front(list) ((void *)(list)->sentinel.next)
#define enet_list_back(list) ((void *)(list)->sentinel.previous)

#endif /* __ENET_LIST_H__ */