76 lines
1.5 KiB
C
76 lines
1.5 KiB
C
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/**
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@file list.c
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@brief ENet linked list functions
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*/
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#define ENET_BUILDING_LIB 1
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#include "enet/enet.h"
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/**
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@defgroup list ENet linked list utility functions
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@ingroup private
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@{
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*/
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void
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enet_list_clear (ENetList * list)
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{
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list -> sentinel.next = & list -> sentinel;
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list -> sentinel.previous = & list -> sentinel;
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}
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ENetListIterator
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enet_list_insert (ENetListIterator position, void * data)
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{
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ENetListIterator result = (ENetListIterator) data;
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result -> previous = position -> previous;
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result -> next = position;
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result -> previous -> next = result;
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position -> previous = result;
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return result;
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}
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void *
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enet_list_remove (ENetListIterator position)
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{
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position -> previous -> next = position -> next;
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position -> next -> previous = position -> previous;
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return position;
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}
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ENetListIterator
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enet_list_move (ENetListIterator position, void * dataFirst, void * dataLast)
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{
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ENetListIterator first = (ENetListIterator) dataFirst,
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last = (ENetListIterator) dataLast;
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first -> previous -> next = last -> next;
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last -> next -> previous = first -> previous;
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first -> previous = position -> previous;
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last -> next = position;
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first -> previous -> next = first;
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position -> previous = last;
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return first;
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}
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size_t
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enet_list_size (ENetList * list)
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{
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size_t size = 0;
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ENetListIterator position;
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for (position = enet_list_begin (list);
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position != enet_list_end (list);
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position = enet_list_next (position))
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++ size;
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return size;
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}
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/** @} */
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