Dima Zavin | da04c52 | 2011-09-01 17:09:44 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2008 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include <cutils/list.h> |
| 18 | |
| 19 | void list_init(struct listnode *node) |
| 20 | { |
| 21 | node->next = node; |
| 22 | node->prev = node; |
| 23 | } |
| 24 | |
| 25 | void list_add_tail(struct listnode *head, struct listnode *item) |
| 26 | { |
| 27 | item->next = head; |
| 28 | item->prev = head->prev; |
| 29 | head->prev->next = item; |
| 30 | head->prev = item; |
| 31 | } |
| 32 | |
| 33 | void list_remove(struct listnode *item) |
| 34 | { |
| 35 | item->next->prev = item->prev; |
| 36 | item->prev->next = item->next; |
| 37 | } |