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// SPDX-License-Identifier: LGPL-2.1-or-later
/*
* This file is part of the PCEPlib, a PCEP protocol library.
*
* Copyright (C) 2020 Volta Networks https://voltanet.io/
*
* Author : Brady Johnson <brady@voltanet.io>
*
*/
#ifndef PCEP_UTILS_INCLUDE_PCEP_UTILS_DOUBLE_LINKED_LIST_H_
#define PCEP_UTILS_INCLUDE_PCEP_UTILS_DOUBLE_LINKED_LIST_H_
typedef struct double_linked_list_node_ {
struct double_linked_list_node_ *prev_node;
struct double_linked_list_node_ *next_node;
void *data;
} double_linked_list_node;
typedef struct double_linked_list_ {
double_linked_list_node *head;
double_linked_list_node *tail;
unsigned int num_entries;
} double_linked_list;
/* Initialize a double linked list */
double_linked_list *dll_initialize(void);
/* Destroy a double linked list, by freeing the handle and nodes,
* user data will not be freed, and may be leaked if not handled
* externally. */
void dll_destroy(double_linked_list *handle);
/* Destroy a double linked list, by freeing the handle and nodes,
* and the user data. */
void dll_destroy_with_data(double_linked_list *handle);
void dll_destroy_with_data_memtype(double_linked_list *handle,
void *data_memory_type);
/* Creates a node and adds it as the first item in the list */
double_linked_list_node *dll_prepend(double_linked_list *handle, void *data);
/* Creates a node and adds it as the last item in the list */
double_linked_list_node *dll_append(double_linked_list *handle, void *data);
/* Delete the first node in the list, and return the data */
void *dll_delete_first_node(double_linked_list *handle);
/* Delete the last node in the list, and return the data */
void *dll_delete_last_node(double_linked_list *handle);
/* Delete the designated node in the list, and return the data */
void *dll_delete_node(double_linked_list *handle,
double_linked_list_node *node);
#endif /* PCEP_UTILS_INCLUDE_PCEP_UTILS_DOUBLE_LINKED_LIST_H_ */
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