/* -*- Mode: C; tab-width: 4 -*-
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*
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* Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __GenLinkedList__
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#define __GenLinkedList__
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#include <stddef.h>
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struct GenLinkedList
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{
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void *Head,
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*Tail;
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size_t LinkOffset;
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};
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typedef struct GenLinkedList GenLinkedList;
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void InitLinkedList( GenLinkedList *pList, size_t linkOffset);
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void AddToHead( GenLinkedList *pList, void *elem);
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void AddToTail( GenLinkedList *pList, void *elem);
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int RemoveFromList( GenLinkedList *pList, void *elem);
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int ReplaceElem( GenLinkedList *pList, void *elemInList, void *newElem);
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struct GenDoubleLinkedList
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{
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void *Head,
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*Tail;
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size_t FwdLinkOffset,
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BackLinkOffset;
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};
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typedef struct GenDoubleLinkedList GenDoubleLinkedList;
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void InitDoubleLinkedList( GenDoubleLinkedList *pList, size_t fwdLinkOffset,
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size_t backLinkOffset);
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void DLLAddToHead( GenDoubleLinkedList *pList, void *elem);
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void DLLRemoveFromList( GenDoubleLinkedList *pList, void *elem);
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/* A GenLinkedOffsetList is like a GenLinkedList that stores the *Next field as a signed */
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/* offset from the address of the beginning of the element, rather than as a pointer. */
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struct GenLinkedOffsetList
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{
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size_t Head,
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Tail;
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size_t LinkOffset;
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};
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typedef struct GenLinkedOffsetList GenLinkedOffsetList;
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void InitLinkedOffsetList( GenLinkedOffsetList *pList, size_t linkOffset);
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void *GetHeadPtr( GenLinkedOffsetList *pList);
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void *GetTailPtr( GenLinkedOffsetList *pList);
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void *GetOffsetLink( GenLinkedOffsetList *pList, void *elem);
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void OffsetAddToHead( GenLinkedOffsetList *pList, void *elem);
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void OffsetAddToTail( GenLinkedOffsetList *pList, void *elem);
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int OffsetRemoveFromList( GenLinkedOffsetList *pList, void *elem);
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int OffsetReplaceElem( GenLinkedOffsetList *pList, void *elemInList, void *newElem);
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#endif // __GenLinkedList__
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