1 files changed, 142 insertions, 0 deletions
diff --git a/Source/charon/linked_list.h b/Source/charon/linked_list.h
new file mode 100644
index 000000000..91cf0777f
--- /dev/null
+++ b/Source/charon/linked_list.h
@@ -0,0 +1,142 @@
+/**
+ * @file linked_list.h
+ * 
+ * @brief Generic Double Linked List
+ * 
+ */
+
+/*
+ * Copyright (C) 2005 Jan Hutter, Martin Willi
+ * Hochschule fuer Technik Rapperswil
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+
+#ifndef LINKED_LIST_H_
+#define LINKED_LIST_H_
+
+#include "types.h"
+
+
+/**
+ * @brief Double Linked List Element type
+ */
+typedef struct linked_list_element_s linked_list_element_t;
+
+struct linked_list_element_s {
+	linked_list_element_t *previous;
+	linked_list_element_t *next;
+	/* value of a list item */
+	void *value;
+	
+	/**
+	 * @brief Destroys a linked_list_element object
+	 * 
+	 * @param linked_list_element_t calling object
+	 * @returns SUCCESS if succeeded, FAILED otherwise
+	 */
+	status_t (*destroy) (linked_list_element_t *this);
+};
+
+/**
+ * @brief Creates an empty linked list object
+ *
+ * @param value value of item
+ * 
+ * @return linked_list_element object
+ */
+linked_list_element_t *linked_list_element_create(void *value);
+
+
+/**
+ * @brief Double Linked List type
+ */
+typedef struct linked_list_s linked_list_t;
+
+
+struct linked_list_s {
+	/* item count */
+	int count;
+	linked_list_element_t *first;
+	linked_list_element_t *last;
+	
+	/**
+	 * @brief inserts a new item at the beginning of the list
+	 * 
+	 * @param linked_list calling object
+	 * @param item value to insert in list
+	 * @returns SUCCESS if succeeded, FAILED otherwise
+	 */
+	status_t (*insert_first) (linked_list_t *linked_list, void *item);
+	
+	/**
+	 * @brief removes the first item in the list and returns its value
+	 * 
+	 * @param linked_list calling object
+	 * @param item returned value of first item
+	 * @returns SUCCESS if succeeded, FAILED otherwise
+	 */
+	status_t (*remove_first) (linked_list_t *linked_list, void **item);
+
+	/**
+	 * @brief Returns the value of the first list item without removing it
+	 * 
+	 * @param linked_list calling object
+	 * @param item returned value of first item
+	 * @returns SUCCESS if succeeded, FAILED otherwise
+	 */
+	status_t (*get_first) (linked_list_t *linked_list, void **item);
+
+	/**
+	 * @brief inserts a new item at the end of the list
+	 * 
+	 * @param linked_list calling object
+	 * @param item value to insert in list
+	 * @returns SUCCESS if succeeded, FAILED otherwise
+	 */
+	status_t (*insert_last) (linked_list_t *linked_list, void *item);
+	
+	/**
+	 * @brief removes the last item in the list and returns its value
+	 * 
+	 * @param linked_list calling object
+	 * @param item returned value of last item
+	 * @returns SUCCESS if succeeded, FAILED otherwise
+	 */
+	status_t (*remove_last) (linked_list_t *linked_list, void **item);
+
+	/**
+	 * @brief Returns the value of the last list item without removing it
+	 * 
+	 * @param linked_list calling object
+	 * @param item returned value of last item
+	 * @returns SUCCESS if succeeded, FAILED otherwise
+	 */
+	status_t (*get_last) (linked_list_t *linked_list, void **item);
+	
+	/**
+	 * @brief Destroys a linked_list object
+	 * 
+	 * @param linked_list calling object
+	 * @returns SUCCESS if succeeded, FAILED otherwise
+	 */
+	status_t (*destroy) (linked_list_t *linked_list);
+};
+
+/**
+ * @brief
+ * 
+ * Creates an empty linked list object
+ */
+linked_list_t *linked_list_create(void);
+
+
+#endif /*LINKED_LIST_H_*/