vid_api.h 文件参考

浏览源代码.

函数
UINT32	VidMapListInit (LosProcessCB *processCB)
VOID	VidMapDestroy (LosProcessCB *processCB)
	销毁虚拟ID映射 更多...
UINT16	AddNodeByRid (UINT16 rid)
UINT16	GetRidByVid (UINT16 vid)
VOID	RemoveNodeByVid (UINT16 vid)

函数说明

AddNodeByRid()

UINT16 AddNodeByRid

(

UINT16

rid

)

在文件 vid.c 第 178 行定义.

{
    TimerIdMapNode *tmp = NULL;
    LosProcessCB *processCB = OsCurrProcessGet();
    UINT16 vid;
 
    tmp = FindListNodeByRid(rid);
    if (tmp) {
        return tmp->vid;
    }
 
    LOS_MuxLock(&processCB->timerIdMap.vidMapLock, LOS_WAIT_FOREVER);
    vid = GetFreeVid();
    if (vid == MAX_INVALID_TIMER_VID) {
        LOS_MuxUnlock(&processCB->timerIdMap.vidMapLock);
        errno = ENOMEM;
        return MAX_INVALID_TIMER_VID;
    }
    tmp = (TimerIdMapNode *)LOS_MemAlloc(m_aucSysMem0, sizeof(TimerIdMapNode));
    if (tmp == NULL) {
        PRINT_ERR("%s %d, alloc memory failed\n", __FUNCTION__, __LINE__);
        LOS_MuxUnlock(&processCB->timerIdMap.vidMapLock);
        errno = ENOMEM;
        return MAX_INVALID_TIMER_VID;
    }
    tmp->rid = rid;
    tmp->vid = vid;
 
    LOS_ListTailInsert(&processCB->timerIdMap.head, &tmp->node);
    LOS_MuxUnlock(&processCB->timerIdMap.vidMapLock);
 
    return vid;
}

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GetRidByVid()

UINT16 GetRidByVid

(

UINT16

vid

)

在文件 vid.c 第 212 行定义.

{
    TimerIdMapNode *tmp = FindListNodeByVid(vid);
    if (tmp) {
        return tmp->rid;
    }
    return 0xffff;
}

函数调用图:

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RemoveNodeByVid()

VOID RemoveNodeByVid

(

UINT16

vid

)

在文件 vid.c 第 221 行定义.

{
    TimerIdMapNode *tmp = NULL;
    LosProcessCB *processCB = OsCurrProcessGet();
 
    tmp = FindListNodeByVid(vid);
    if (tmp == NULL) {
        return;
    }
 
    LOS_MuxLock(&processCB->timerIdMap.vidMapLock, LOS_WAIT_FOREVER);
    LOS_ListDelete(&tmp->node);
    ReleaseVid(tmp->vid);
    LOS_MuxUnlock(&processCB->timerIdMap.vidMapLock);
    LOS_MemFree(m_aucSysMem0, tmp);
 
    return;
}

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VidMapDestroy()

VOID VidMapDestroy

(

LosProcessCB *

processCB

)

销毁虚拟ID映射

在文件 vid.c 第 57 行定义.

{
    TimerIdMapNode *idNode = NULL;
    TimerIdMapNode *idNodeNext = NULL;
 
    LOS_MuxLock(&processCB->timerIdMap.vidMapLock, LOS_WAIT_FOREVER);
    LOS_DL_LIST_FOR_EACH_ENTRY_SAFE(idNode, idNodeNext, &processCB->timerIdMap.head, TimerIdMapNode, node) {
        LOS_ListDelete(&idNode->node);
        LOS_MemFree(m_aucSysMem0, idNode);
    }
 
    LOS_MuxUnlock(&processCB->timerIdMap.vidMapLock);
    LOS_MemFree(m_aucSysMem0, processCB->timerIdMap.bitMap);
    LOS_MuxDestroy(&processCB->timerIdMap.vidMapLock);
}

函数调用图:

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VidMapListInit()

UINT32 VidMapListInit

(

LosProcessCB *

processCB

)

在文件 vid.c 第 36 行定义.

{
    (void)memset_s(&processCB->timerIdMap, sizeof(TimerIdMap), 0, sizeof(TimerIdMap));
    LOS_ListInit(&processCB->timerIdMap.head);
    processCB->timerIdMap.bitMap = (UINT32*)LOS_MemAlloc(m_aucSysMem0, sizeof(UINT32));
    if (processCB->timerIdMap.bitMap == NULL) {
        PRINT_ERR("%s %d, alloc memory failed\n", __FUNCTION__, __LINE__);
        return LOS_NOK;
    }
 
    processCB->timerIdMap.mapCount = 1;
    (void)memset_s(processCB->timerIdMap.bitMap, sizeof(UINT32), 0, sizeof(UINT32));
    if (LOS_MuxInit(&processCB->timerIdMap.vidMapLock, NULL) != LOS_OK) {
        PRINT_ERR("%s %d, Create mutex for vmm failed\n", __FUNCTION__, __LINE__);
        LOS_MemFree(m_aucSysMem0, processCB->timerIdMap.bitMap);
        processCB->timerIdMap.bitMap = NULL;
        return LOS_NOK;
    }
    return LOS_OK;
}

函数调用图:

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