projects / mirror_frr.git / blame
| Commit | Line | Data |
|---|---|---|
| 74971473 JG |
1 | /* |
| 2 | * This file is part of the PCEPlib, a PCEP protocol library. | |
| 3 | * | |
| 4 | * Copyright (C) 2020 Volta Networks https://voltanet.io/ | |
| 5 | * | |
| 6 | * This library is free software; you can redistribute it and/or | |
| 7 | * modify it under the terms of the GNU Lesser General Public | |
| 8 | * License as published by the Free Software Foundation; either | |
| 9 | * version 2 of the License, or (at your option) any later version. | |
| 10 | * | |
| 11 | * This library is distributed in the hope that it will be useful, | |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 | * Lesser General Public License for more details. | |
| 15 | * | |
| 16 | * You should have received a copy of the GNU General Public License | |
| 17 | * along with this program. If not, see <https://www.gnu.org/licenses/>. | |
| 18 | * | |
| 19 | * Author : Brady Johnson <brady@voltanet.io> | |
| 20 | * | |
| 21 | */ | |
| 22 | ||
| 23 | ||
| 24 | #ifndef PCEP_UTILS_INCLUDE_PCEP_UTILS_DOUBLE_LINKED_LIST_H_ | |
| 25 | #define PCEP_UTILS_INCLUDE_PCEP_UTILS_DOUBLE_LINKED_LIST_H_ | |
| 26 | ||
| 27 | typedef struct double_linked_list_node_ { | |
| 28 | struct double_linked_list_node_ *prev_node; | |
| 29 | struct double_linked_list_node_ *next_node; | |
| 30 | void *data; | |
| 31 | ||
| 32 | } double_linked_list_node; | |
| 33 | ||
| 34 | ||
| 35 | typedef struct double_linked_list_ { | |
| 36 | double_linked_list_node *head; | |
| 37 | double_linked_list_node *tail; | |
| 38 | unsigned int num_entries; | |
| 39 | ||
| 40 | } double_linked_list; | |
| 41 | ||
| 42 | ||
| 43 | /* Initialize a double linked list */ | |
| 44 | double_linked_list *dll_initialize(void); | |
| 45 | ||
| 46 | /* Destroy a double linked list, by freeing the handle and nodes, | |
| 47 | * user data will not be freed, and may be leaked if not handled | |
| 48 | * externally. */ | |
| 49 | void dll_destroy(double_linked_list *handle); | |
| 50 | /* Destroy a double linked list, by freeing the handle and nodes, | |
| 51 | * and the user data. */ | |
| 52 | void dll_destroy_with_data(double_linked_list *handle); | |
| 53 | void dll_destroy_with_data_memtype(double_linked_list *handle, | |
| 54 | void *data_memory_type); | |
| 55 | ||
| 56 | /* Creates a node and adds it as the first item in the list */ | |
| 57 | double_linked_list_node *dll_prepend(double_linked_list *handle, void *data); | |
| 58 | ||
| 59 | /* Creates a node and adds it as the last item in the list */ | |
| 60 | double_linked_list_node *dll_append(double_linked_list *handle, void *data); | |
| 61 | ||
| 62 | /* Delete the first node in the list, and return the data */ | |
| 63 | void *dll_delete_first_node(double_linked_list *handle); | |
| 64 | ||
| 65 | /* Delete the last node in the list, and return the data */ | |
| 66 | void *dll_delete_last_node(double_linked_list *handle); | |
| 67 | ||
| 68 | /* Delete the designated node in the list, and return the data */ | |
| 69 | void *dll_delete_node(double_linked_list *handle, | |
| 70 | double_linked_list_node *node); | |
| 71 | ||
| 72 | #endif /* PCEP_UTILS_INCLUDE_PCEP_UTILS_DOUBLE_LINKED_LIST_H_ */ |