Ejemplo n.º 1
0
void COPCItem::readSync(OPCItemData &data, OPCDATASOURCE source){
	CAtlArray<COPCItem *> items;
	items.Add(this);
	COPCItem_DataMap opcData;
	group->readSync(items, opcData, source);
		
	COPCItem_DataMap::CPair* pos = opcData.Lookup(this);
	if (pos){
		OPCItemData * readData = opcData.GetValueAt(pos);
		if (readData && !FAILED(readData->error)){
			data = *readData;
			return;
		}
	} 

	throw OPCException("Read failed");
}
Ejemplo n.º 2
0
	/**
	* Enter the OPC items data that resulted from an operation
	*/
	static void updateOPCData(COPCItem_DataMap &opcData, DWORD count, OPCHANDLE * clienthandles, 
		VARIANT* values, WORD * quality,FILETIME * time, HRESULT * errors){
		// see page 136 - returned arrays may be out of order
		for (unsigned i = 0; i < count; i++){
			// TODO this is bad  - server could corrupt address - need to use look up table
			COPCItem * item = (COPCItem *)clienthandles[i];
			CAtlMap<COPCItem *, OPCItemData *>::CPair* pair = opcData.Lookup(item);
			OPCItemData * data = NULL;
			if (FAILED(errors[i])){
				data = new OPCItemData(errors[i]);
			} else {	
				data = new OPCItemData(time[i],quality[i],values[i],errors[i]);
				
			}
			if (pair == NULL){
				opcData.SetAt(item,data);
			} else {
				opcData.SetValueAt(pair,data);
			}
		}
		
	}