Initial community commit

Src/replicant/nu/nodelist.c

@@ -0,0 +1,71 @@
+#include "nodelist.h"
+
+void nodelist_init(nodelist_t nodelist)
+{
+	nodelist->head=0;
+	nodelist->tail=0;
+}
+
+void nodelist_push_back(nodelist_t nodelist, queue_node_t *item)
+{
+	if (!nodelist->head)
+	{
+		nodelist->head=item;
+		nodelist->tail=item;
+	}
+	else
+	{
+		nodelist->tail->Next=item;
+		nodelist->tail=item;
+	}
+	item->Next = 0;
+}
+
+void nodelist_push_front(nodelist_t nodelist, queue_node_t *item)
+{
+	if (!nodelist->head)
+	{
+		nodelist->head=item;
+		nodelist->tail=item;
+		item->Next=0;
+	}
+	else
+	{
+		item->Next = nodelist->head;
+		nodelist->head = item;
+	}
+}
+
+queue_node_t *nodelist_pop_front(nodelist_t nodelist)
+{
+	queue_node_t *ret;
+	if (!nodelist->head)
+		return 0;
+
+	ret = nodelist->head;
+	nodelist->head = nodelist->head->Next;
+	ret->Next = 0; // so we don't confuse anyone
+
+	if (ret == nodelist->tail)
+	{
+		nodelist->tail = 0;
+	}
+	return ret;
+}
+
+void nodelist_push_back_list(nodelist_t nodelist, queue_node_t *item)
+{
+	if (!nodelist->head)
+	{
+		nodelist->head=item;
+	}
+	else
+	{
+		nodelist->tail->Next=item;
+	}
+
+	while (item->Next)
+		item = item->Next;
+
+	nodelist->tail = item;
+}