Robert Greenwalt | 47e4ceb | 2012-03-26 15:36:57 -0700 | [diff] [blame] | 1 | /* -*- Mode: C; tab-width: 4 -*- |
| 2 | * |
| 3 | * Copyright (c) 2003 Apple Computer, Inc. All rights reserved. |
| 4 | * |
| 5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | * you may not use this file except in compliance with the License. |
| 7 | * You may obtain a copy of the License at |
| 8 | * |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | * |
| 11 | * Unless required by applicable law or agreed to in writing, software |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | * See the License for the specific language governing permissions and |
| 15 | * limitations under the License. |
| 16 | */ |
| 17 | |
| 18 | #ifndef __GenLinkedList__ |
| 19 | #define __GenLinkedList__ |
| 20 | |
| 21 | |
| 22 | #include <stddef.h> |
| 23 | |
| 24 | |
| 25 | struct GenLinkedList |
| 26 | { |
| 27 | void *Head, |
| 28 | *Tail; |
| 29 | size_t LinkOffset; |
| 30 | }; |
| 31 | typedef struct GenLinkedList GenLinkedList; |
| 32 | |
| 33 | |
| 34 | void InitLinkedList( GenLinkedList *pList, size_t linkOffset); |
| 35 | |
| 36 | void AddToHead( GenLinkedList *pList, void *elem); |
| 37 | void AddToTail( GenLinkedList *pList, void *elem); |
| 38 | |
| 39 | int RemoveFromList( GenLinkedList *pList, void *elem); |
| 40 | |
| 41 | int ReplaceElem( GenLinkedList *pList, void *elemInList, void *newElem); |
| 42 | |
| 43 | |
| 44 | |
| 45 | struct GenDoubleLinkedList |
| 46 | { |
| 47 | void *Head, |
| 48 | *Tail; |
| 49 | size_t FwdLinkOffset, |
| 50 | BackLinkOffset; |
| 51 | }; |
| 52 | typedef struct GenDoubleLinkedList GenDoubleLinkedList; |
| 53 | |
| 54 | |
| 55 | void InitDoubleLinkedList( GenDoubleLinkedList *pList, size_t fwdLinkOffset, |
| 56 | size_t backLinkOffset); |
| 57 | |
| 58 | void DLLAddToHead( GenDoubleLinkedList *pList, void *elem); |
| 59 | |
| 60 | void DLLRemoveFromList( GenDoubleLinkedList *pList, void *elem); |
| 61 | |
| 62 | |
| 63 | |
| 64 | /* A GenLinkedOffsetList is like a GenLinkedList that stores the *Next field as a signed */ |
| 65 | /* offset from the address of the beginning of the element, rather than as a pointer. */ |
| 66 | |
| 67 | struct GenLinkedOffsetList |
| 68 | { |
| 69 | size_t Head, |
| 70 | Tail; |
| 71 | size_t LinkOffset; |
| 72 | }; |
| 73 | typedef struct GenLinkedOffsetList GenLinkedOffsetList; |
| 74 | |
| 75 | |
| 76 | void InitLinkedOffsetList( GenLinkedOffsetList *pList, size_t linkOffset); |
| 77 | |
| 78 | void *GetHeadPtr( GenLinkedOffsetList *pList); |
| 79 | void *GetTailPtr( GenLinkedOffsetList *pList); |
| 80 | void *GetOffsetLink( GenLinkedOffsetList *pList, void *elem); |
| 81 | |
| 82 | void OffsetAddToHead( GenLinkedOffsetList *pList, void *elem); |
| 83 | void OffsetAddToTail( GenLinkedOffsetList *pList, void *elem); |
| 84 | |
| 85 | int OffsetRemoveFromList( GenLinkedOffsetList *pList, void *elem); |
| 86 | |
| 87 | int OffsetReplaceElem( GenLinkedOffsetList *pList, void *elemInList, void *newElem); |
| 88 | |
| 89 | |
| 90 | #endif // __GenLinkedList__ |