int Get_Attr_Value(int attr,int *iValue)
{
int AttrPos, iRet;
// added by noradcai 2009-03-30 增加对共享内存的检查
if(needCheckShm())
{
if(CheckShm()!=CHECK_SHM_SUCCESS)
{
fprintf(stderr, "check shm error!\n");
return -1;
}
setShmCheckFlag();
}
if (!pstAttr&&GetShm2((void**)&pstAttr, ATTR_SHM_ID, getShmSize(), 0666) < 0)
{
fprintf(stderr, "can not get shm ...continue!\n");
return -1;
}
iRet = SearchAttrID(pstAttr,attr,&AttrPos);
if(iRet == 1)//返回0 attr不存在，返回1 attr存在
{
*iValue = pstAttr->astNode[AttrPos].iCurValue;
}
else
{
return -1;
}
return 0;
}
int Attr_API_Set(int attr,int iValue)
{
int AttrPos, iRet;
// added by noradcai 2009-03-30 增加对共享内存的检查
if(needCheckShm())
{
if(CheckShm()!=CHECK_SHM_SUCCESS)
{
fprintf(stderr, "check shm error!\n");
return -1;
}
setShmCheckFlag();
}
if (!pstAttr&&GetShm2((void**)&pstAttr, ATTR_SHM_ID, getShmSize(), 0666) < 0)
{
fprintf(stderr, "get share memory error\n");
return -1;
}
iRet = SearchAttrID(pstAttr,attr,&AttrPos);
if(!iRet)//返回0 attr不存在，返回1 attr存在
{
pstAttr->astNode[AttrPos].iUse=1;
pstAttr->astNode[AttrPos].iAttrID=attr;
pstAttr->astNode[AttrPos].iCurValue=iValue;
}
else if(iRet==-1)
{
fprintf(stderr, "%s %d: out of memory. maxAttrNode=%d\n", __FILE__, __LINE__,getMaxAttrNode());
return -1;
}
else
{
pstAttr->astNode[AttrPos].iCurValue=iValue;
}
return 0;
}
char* Shm::getShmNoCreateAndCheck(int iFlag, int *piSize) {
int iRealShmSize = 0;
if (getShmId(iFlag) == 0) {
return NULL;
}
iRealShmSize = getShmSize();
if (iRealShmSize == 0) {
return NULL;
}
if (*piSize != 0 && *piSize != iRealShmSize) {
snprintf(lastErrorBuf, sizeof(lastErrorBuf),
"*piSize[%d] != iRealShmSize[%d]", *piSize, iRealShmSize);
return NULL;
}
if (*piSize == 0) {
*piSize = iRealShmSize;
}
return getAdr();
}
