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-rw-r--r--libs/enet/list.c75
1 files changed, 75 insertions, 0 deletions
diff --git a/libs/enet/list.c b/libs/enet/list.c
new file mode 100644
index 00000000..8487200f
--- /dev/null
+++ b/libs/enet/list.c
@@ -0,0 +1,75 @@
+/**
+ @file list.c
+ @brief ENet linked list functions
+*/
+#define ENET_BUILDING_LIB 1
+#include "enet/list.h"
+
+/**
+ @defgroup list ENet linked list utility functions
+ @ingroup private
+ @{
+*/
+void
+enet_list_clear (ENetList * list)
+{
+ list -> sentinel.next = & list -> sentinel;
+ list -> sentinel.previous = & list -> sentinel;
+}
+
+ENetListIterator
+enet_list_insert (ENetListIterator position, void * data)
+{
+ ENetListIterator result = (ENetListIterator) data;
+
+ result -> previous = position -> previous;
+ result -> next = position;
+
+ result -> previous -> next = result;
+ position -> previous = result;
+
+ return result;
+}
+
+void *
+enet_list_remove (ENetListIterator position)
+{
+ position -> previous -> next = position -> next;
+ position -> next -> previous = position -> previous;
+
+ return position;
+}
+
+ENetListIterator
+enet_list_move (ENetListIterator position, void * dataFirst, void * dataLast)
+{
+ ENetListIterator first = (ENetListIterator) dataFirst,
+ last = (ENetListIterator) dataLast;
+
+ first -> previous -> next = last -> next;
+ last -> next -> previous = first -> previous;
+
+ first -> previous = position -> previous;
+ last -> next = position;
+
+ first -> previous -> next = first;
+ position -> previous = last;
+
+ return first;
+}
+
+size_t
+enet_list_size (ENetList * list)
+{
+ size_t size = 0;
+ ENetListIterator position;
+
+ for (position = enet_list_begin (list);
+ position != enet_list_end (list);
+ position = enet_list_next (position))
+ ++ size;
+
+ return size;
+}
+
+/** @} */