void NetShrVarInterface::setValueCNV(const std::string& name, CNVData value)
{
int wait_ms = CNVWaitForever/*CNVDoNotWait*/, b_wait_ms = CNVDoNotWait/*CNVWaitForever*/;
NvItem* item = m_params[name];
int error = 0;
if (item->field != -1)
{
throw std::runtime_error("setValueCNV: unable to update struct variable via param \"" + name + "\"");
}
if (item->access & NvItem::Write)
{
error = CNVWrite(item->writer, value, wait_ms);
}
else if (item->access & NvItem::BufferedWrite)
{
error = CNVPutDataInBuffer(item->b_writer, value, b_wait_ms);
}
else
{
throw std::runtime_error("setValueCNV: param \"" + name + "\" does not define a writer for \"" + item->nv_name + "\"");
}
ERROR_CHECK("setValue", error);
}
int CVICALLBACK threadFunc (void *functionData)
{
char textline[1024];
volatile int stop = 0, loop = 0;
double value = 0.0;
CNVBufferedWriter bufferedWriter;
CNVData data = 0;
int error;
char buffer[MAX_PATHNAME_LEN];
// wait for tread lock
CmtGetLock (lock);
// release the lock
CmtReleaseLock (lock);
status = 2; // run while loop
SetCtrlVal (panelHandle, PANEL_STATUS, status);
SetCtrlVal(panelHandle, PANEL_TEXTSTRING, "Nice! thread() has been started!");
Delay (1.0);
error = NetworkVariablePopup (buffer);
if (error < 0)
{
MessagePopup ("Error", GetGeneralErrorString(error));
return 0;
}
else if (error > 0)
{
SetCtrlVal (panelHandle, PANEL_NAME, buffer);
SetWaitCursor (1);
error = CNVCreateBufferedWriter (buffer, DataTransferredCallback, StatusCallback, 0, 10, 10000, 0, &bufferedWriter);
SetWaitCursor (0);
if (error < 0)
{
MessagePopup ("Error", CNVGetErrorDescription(error));
return 0;
}
else
{
SetCtrlVal (panelHandle, PANEL_CNVSTATUS, "Connected");
}
}
CNVCreateScalarDataValue (&data, CNVDouble, value);
while (stop == 0)
{
SetCtrlVal (panelHandle, PANEL_LED, 0);
GetCtrlVal (panelHandle, PANEL_STOPBUTTON, &stop);
Delay (0.2);
sprintf (textline, "%i, %i", loop++, stop);
SetCtrlVal (panelHandle, PANEL_TEXTSTRING, textline);
value = loop;
CNVSetScalarDataValue (data, CNVDouble, value);
CNVPutDataInBuffer (bufferedWriter, data, CNVDoNotWait);
}
SetCtrlVal(panelHandle, PANEL_TEXTSTRING, "Nice! thread() has been stopped!");
Delay (1.0);
CNVDisposeData (data);
CNVDispose (bufferedWriter);
CNVFinish ();
status = 3; // exit threadFunc()
SetCtrlVal (panelHandle, PANEL_STATUS, status);
return 0;
}
