/*****************************************************************************
Function : osMemFreeNode
Description : free the node from memory & if there are free node beside, merger them.
at last update "pstListHead' which saved all free node control head
Input : pstNode -- the node which need be freed
pPool --Pointer to memory pool
Output : None
Return : None
*****************************************************************************/
INLINE VOID osMemFreeNode(LOS_MEM_DYN_NODE *pstNode, VOID *pPool)
{
LOS_MEM_DYN_NODE *pstNextNode = (LOS_MEM_DYN_NODE *)NULL;
LOS_DL_LIST *pstListHead = (LOS_DL_LIST *)NULL;
OS_MEM_REDUCE_USED(OS_MEM_NODE_GET_SIZE(pstNode->uwSizeAndFlag));
pstNode->uwSizeAndFlag = OS_MEM_NODE_GET_SIZE(pstNode->uwSizeAndFlag);
if ((pstNode->pstPreNode != NULL) &&
(!OS_MEM_NODE_GET_USED_FLAG(pstNode->pstPreNode->uwSizeAndFlag)))
{
LOS_MEM_DYN_NODE *pstPreNode = pstNode->pstPreNode;
osMemMergeNode(pstNode);
pstNextNode = OS_MEM_NEXT_NODE(pstPreNode);
if (!OS_MEM_NODE_GET_USED_FLAG(pstNextNode->uwSizeAndFlag))
{
LOS_ListDelete(&(pstNextNode->stFreeNodeInfo));
osMemMergeNode(pstNextNode);
}
LOS_ListDelete(&(pstPreNode->stFreeNodeInfo));
pstListHead = OS_MEM_HEAD(pPool, pstPreNode->uwSizeAndFlag);
if (NULL == pstListHead)
{
PRINT_ERR("%s %d\n", __FUNCTION__, __LINE__);
return;
}
LOS_ListAdd(pstListHead,&(pstPreNode->stFreeNodeInfo));
}
else
{
pstNextNode = OS_MEM_NEXT_NODE(pstNode);
if (!OS_MEM_NODE_GET_USED_FLAG(pstNextNode->uwSizeAndFlag))
{
LOS_ListDelete(&(pstNextNode->stFreeNodeInfo));
osMemMergeNode(pstNextNode);
}
pstListHead = OS_MEM_HEAD(pPool, pstNode->uwSizeAndFlag);
if (NULL == pstListHead)
{
PRINT_ERR("%s %d\n", __FUNCTION__, __LINE__);
return;
}
LOS_ListAdd(pstListHead,&(pstNode->stFreeNodeInfo));
}
}
/*****************************************************************************
Function : osMemSpitNode
Description : spit new node from pstAllocNode, and merge remainder mem if necessary
Input : pPool --Pointer to memory pool
pstAllocNode --the source node which new node be spit from to.
After pick up it's node info, change to point the new node
uwAllocSize -- the size of new node
Output : pstAllocNode -- save new node addr
Return : None
*****************************************************************************/
INLINE VOID osMemSpitNode(VOID *pPool,
LOS_MEM_DYN_NODE *pstAllocNode, UINT32 uwAllocSize)
{
LOS_MEM_DYN_NODE *pstNewFreeNode = (LOS_MEM_DYN_NODE *)NULL;
LOS_MEM_DYN_NODE *pstNextNode = (LOS_MEM_DYN_NODE *)NULL;
LOS_DL_LIST *pstListHead = (LOS_DL_LIST *)NULL;
pstNewFreeNode = (LOS_MEM_DYN_NODE *)((UINT8 *)pstAllocNode + uwAllocSize);
pstNewFreeNode->pstPreNode = pstAllocNode;
pstNewFreeNode->uwSizeAndFlag = pstAllocNode->uwSizeAndFlag - uwAllocSize;
pstAllocNode->uwSizeAndFlag = uwAllocSize;
pstNextNode = OS_MEM_NEXT_NODE(pstNewFreeNode);
pstNextNode->pstPreNode = pstNewFreeNode;
if (!OS_MEM_NODE_GET_USED_FLAG(pstNextNode->uwSizeAndFlag))
{
LOS_ListDelete(&(pstNextNode->stFreeNodeInfo));
osMemMergeNode(pstNextNode);
}
pstListHead = OS_MEM_HEAD(pPool, pstNewFreeNode->uwSizeAndFlag);
if (NULL == pstListHead)
{
PRINT_ERR("%s %d\n", __FUNCTION__, __LINE__);
return;
}
LOS_ListAdd(pstListHead,&(pstNewFreeNode->stFreeNodeInfo));
}
/*****************************************************************************
Function : LOS_MuxDelete
Description : Delete a mutex,
Input : uwMuxHandle------Mutex operation handle
Output : None
Return : LOS_OK on success ,or error code on failure
*****************************************************************************/
LITE_OS_SEC_TEXT_INIT UINT32 LOS_MuxDelete(UINT32 uwMuxHandle)
{
UINT32 uwIntSave;
MUX_CB_S *pstMuxDeleted;
UINT32 uwErrNo;
UINT32 uwErrLine;
if (uwMuxHandle >= (UINT32)LOSCFG_BASE_IPC_MUX_LIMIT)
{
OS_GOTO_ERR_HANDLER(LOS_ERRNO_MUX_INVALID);
}
pstMuxDeleted = GET_MUX(uwMuxHandle);
uwIntSave = LOS_IntLock();
if (OS_MUX_UNUSED == pstMuxDeleted->ucMuxStat)
{
LOS_IntRestore(uwIntSave);
OS_GOTO_ERR_HANDLER(LOS_ERRNO_MUX_INVALID);
}
if (!LOS_ListEmpty(&pstMuxDeleted->stMuxList) || pstMuxDeleted->usMuxCount)
{
LOS_IntRestore(uwIntSave);
OS_GOTO_ERR_HANDLER(LOS_ERRNO_MUX_PENDED);
}
LOS_ListAdd(&g_stUnusedMuxList, &pstMuxDeleted->stMuxList);
pstMuxDeleted->ucMuxStat = OS_MUX_UNUSED;
LOS_IntRestore(uwIntSave);
return LOS_OK;
ErrHandler:
OS_RETURN_ERROR_P2(uwErrLine, uwErrNo);
}
