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