Sandboxie/Sandboxie/common/list.h

111 lines
3.2 KiB
C

/*
* Copyright 2004-2020 Sandboxie Holdings, LLC
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
//---------------------------------------------------------------------------
// Double-linked List based on a Cell Pool
//---------------------------------------------------------------------------
#ifndef _MY_LIST_H
#define _MY_LIST_H
#ifdef LIST_WITH_MEMORY_MANAGEMENT
#include "pool.h"
#endif
#ifdef __cplusplus
extern "C" {
#endif
//---------------------------------------------------------------------------
// Structures
//---------------------------------------------------------------------------
typedef struct LIST_ELEM {
struct LIST_ELEM *next;
struct LIST_ELEM *prev;
} LIST_ELEM;
typedef struct {
LIST_ELEM *head;
LIST_ELEM *tail;
int count;
#ifdef LIST_WITH_MEMORY_MANAGEMENT
POOL *pool;
int elem_len;
#endif
} LIST;
//---------------------------------------------------------------------------
// Macros
//---------------------------------------------------------------------------
#ifndef LIST_WITH_MEMORY_MANAGEMENT
#include <memory.h>
/* Initializes list structure */
#define List_Init(list) (memset((list),0,sizeof(LIST)))
#endif
/* Return head elem of list LIST */
#define List_Head(list) ((void *)(((LIST *)(list))->head))
/* Return tail elem of list LIST */
#define List_Tail(list) ((void *)(((LIST *)(list))->tail))
/* Return count of elems in list LIST */
#define List_Count(list) (((LIST *)(list))->count)
/* Return elem next to elem ELEM */
#define List_Next(elem) ((void *)(((LIST_ELEM *)(elem))->next))
/* Return elem previous to elem ELEM */
#define List_Prev(elem) ((void *)(((LIST_ELEM *)(elem))->prev))
// Deletes the pool allocated to a list
//---------------------------------------------------------------------------
// Functions
//---------------------------------------------------------------------------
#ifdef LIST_WITH_MEMORY_MANAGEMENT
/* Initializes list structure */
void List_Init(LIST *list);
#endif
/* Insert new elem before that pointed to by ELEM*/
void List_Insert_Before(LIST *list, void *oldelem, void *newelem);
/* Insert new elem after that pointed to by ELEM*/
void List_Insert_After(LIST *list, void *elem, void *newelem);
/* Delete elem pointed to by ELEM */
void List_Remove(LIST *list, void *elem);
#ifdef LIST_WITH_MEMORY_MANAGEMENT
/* These also manage memory for the elements */
void *List_Insert_New_Before(LIST *list, void *elem);
void *List_Insert_After(LIST *list, void *elem);
void List_Delete(LIST *list, void *elem);
#endif
//---------------------------------------------------------------------------
#ifdef __cplusplus
}
#endif
#endif /* _MY_LIST_H */