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longpanda
2020-04-05 00:07:50 +08:00
parent 2090c6fa97
commit 05a1b863a6
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98
VtoyTool/BabyISO/biso_list.c Normal file
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/******************************************************************************
* biso_list.c
*
* Copyright (c) 2020, longpanda <admin@ventoy.net>
*
* 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 <http://www.gnu.org/licenses/>.
*
*/
#include "biso.h"
#include "biso_list.h"
#include "biso_util.h"
VOID BISO_DLL_Init(OUT BISO_DLL_S *pstList)
{
pstList->stHead.pstNext = &(pstList->stHead);
pstList->stHead.pstPre = &(pstList->stHead);
pstList->pstTail = &(pstList->stHead);
pstList->uiCount = 0;
}
VOID BISO_DLL_AddTail
(
IN BISO_DLL_S *pstList,
IN BISO_DLL_NODE_S *pstNode
)
{
pstList->pstTail->pstNext = pstNode;
pstNode->pstNext = NULL;
pstNode->pstPre = pstList->pstTail;
pstList->pstTail = pstNode;
pstList->uiCount++;
}
VOID BISO_DLL_DelHead(IN BISO_DLL_S *pstList)
{
BISO_DLL_NODE_S *pstFirst = BISO_DLL_First(pstList);
if (NULL != pstFirst)
{
if (1 == BISO_DLL_Count(pstList)) /* 唯一节点 */
{
BISO_DLL_Init(pstList);
}
else
{
pstFirst->pstNext->pstPre = &(pstList->stHead);
pstList->stHead.pstNext = pstFirst->pstNext;
pstList->uiCount--;
}
}
}
VOID BISO_DLL_DelTail(IN BISO_DLL_S *pstList)
{
BISO_DLL_NODE_S *pstLast = BISO_DLL_Last(pstList);
if (NULL != pstLast)
{
if (1 == BISO_DLL_Count(pstList)) /* 唯一节点 */
{
BISO_DLL_Init(pstList);
}
else
{
pstLast->pstPre->pstNext = NULL;
pstList->pstTail = pstLast->pstPre;
pstList->uiCount--;
}
}
}
VOID BISO_DLL_Free(IN BISO_DLL_S *pstList)
{
BISO_DLL_NODE_S *pstFirst = BISO_DLL_First(pstList);
while (NULL != pstFirst)
{
/* 每次都摘掉头节点 */
BISO_DLL_DelHead(pstList);
/* 使用free释放节点 */
BISO_FREE(pstFirst);
pstFirst = BISO_DLL_First(pstList);
}
}