void start()
{
ActivityTimer s(totalCycles, timeActivities, NULL);
dataLinkStart("TEMPTABLE", container.queryId());
currentRow = 0;
isLocal = container.queryOwnerId() && container.queryOwner().isLocalOnly();
empty = isLocal ? false : !firstNode();
numRows = helper->numRows();
}
void getMetaInfo(ThorDataLinkMetaInfo &info)
{
initMetaInfo(info);
info.isSource = true;
info.unknownRowsOutput = false;
if (isLocal || firstNode())
info.totalRowsMin = helper->numRows();
else
info.totalRowsMin = 0;
info.totalRowsMax = info.totalRowsMin;
}
CATCH_NEXTROW()
{
ActivityTimer t(totalCycles, timeActivities, NULL);
if (eof || abortSoon)
return NULL;
RtlDynamicRowBuilder row(queryRowAllocator());
size32_t sizeGot = helper->getRow(row, currentRow++);
if (sizeGot)
{
dataLinkIncrement();
return row.finalizeRowClear(sizeGot);
}
eof = true;
return NULL;
}
CATCH_NEXTROW()
{
ActivityTimer t(totalCycles, timeActivities, NULL);
if (empty || abortSoon)
return NULL;
// Filtering empty rows, returns the next valid row
while (currentRow < numRows) {
RtlDynamicRowBuilder row(queryRowAllocator());
size32_t sizeGot = helper->getRow(row, currentRow++);
if (sizeGot)
{
dataLinkIncrement();
return row.finalizeRowClear(sizeGot);
}
}
return NULL;
}
