blink.h

fs_lib,arm9的fat文件系统

/*
 * @(#)Blink.h
 * @date 2005/12/25
 * @version 1.0
 * @author Zhou Shangpin.
 * Copyright 2005 Anyka corporation, Inc. All rights reserved.
 * ANYKA PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

#ifndef		_BLINK_H_
#define		_BLINK_H_

#include	"object.h"
#include	"mem_api.h"

typedef struct BLinkItem* T_PBLINKITEM;
typedef struct BLinkItem T_BLINKITEM;
struct BLinkItem
{
	T_U8*	data;
	T_PBLINKITEM	prev;
	T_PBLINKITEM	next;
};

struct BLink
{
	T_OBJECT		object;
	T_U32			ItemSize;
	T_PBLINKITEM	head;
	T_PBLINKITEM	tail;
	T_PBLINKITEM	ptr;
};

typedef	struct BLink	T_BLINK;
typedef	struct BLink* T_PBLINK;

//destroy a link.
T_VOID BLink_Destroy(T_PBLINK obj);

//initial object' item.
T_VOID BLink_Initial(T_PBLINK obj, T_U32 ItemSize);

//get a item.
T_BOOL BLink_Get(T_PBLINK obj, T_U32 pos, T_pVOID item);

//seek to first.
T_VOID	BLink_First(T_PBLINK obj);

//seek to last
T_VOID	BLink_Last(T_PBLINK obj);

//get next item.
T_BOOL	BLink_Next(T_PBLINK obj, T_pVOID item);

//get previous item.
T_BOOL	BLink_Prev(T_PBLINK obj, T_pVOID item);

//delete current item.
T_BOOL	BLink_Delete(T_PBLINK obj);

//insert a item.
T_BOOL	BLink_Insert(T_PBLINK obj, T_pVOID item);

//get link state.
T_BOOL	BLink_IsEmpty(T_PBLINK obj);

#endif