CATCH_NEXTROW()
{
ActivityTimer t(totalCycles, timeActivities);
if (!abortSoon)
{
if (firstget)
{
firstget = false;
while (skipped<skipCount)
{
OwnedConstThorRow row = input->ungroupedNextRow();
if (!row)
{
stop();
return NULL;
}
skipped++;
}
}
if (getDataLinkCount() < limit)
{
OwnedConstThorRow row = input->ungroupedNextRow();
if (row)
{
dataLinkIncrement();
return row.getClear();
}
}
stop(); // NB: really whatever is pulling, should stop asap.
}
return NULL;
}
void CThorDataLink::initMetaInfo(ThorDataLinkMetaInfo &info)
{
memset(&info,0,sizeof(info));
//info.rowsdone = xx;
info.totalRowsMin = 0;
info.totalRowsMax = -1; // rely on inputs to set
info.spilled = (offset_t)-1;
info.byteTotal = (offset_t)-1;
info.rowsOutput = getDataLinkCount();
// more
}
void ensureSendCount()
{
if (hasStarted() && !isLookAheadActive(0))
sendOnce(getDataLinkCount() + skipped);
}
void stop()
{
stopInput(getDataLinkCount());
dataLinkStop();
}
const void *nextRowGENoCatch(const void *seek, unsigned numFields, bool &wasCompleteMatch, const SmartStepExtra &stepExtra)
{
ActivityTimer t(totalCycles, timeActivities, NULL);
OwnedConstThorRow ret = input->nextRowGE(seek, numFields, wasCompleteMatch, stepExtra);
if (ret && prev && stepCompare->docompare(prev, ret, numFields) > 0)
{
// MORE - better to give mismatching rows than indexes?
throw MakeActivityException(this, TE_NotSorted, "detected incorrectly sorted rows (row %"RCPF"d, %"RCPF"d))", getDataLinkCount(), getDataLinkCount()+1);
}
prev.set(ret);
if (ret)
dataLinkIncrement();
return ret.getClear();
}
CATCH_NEXTROW()
{
ActivityTimer t(totalCycles, timeActivities, NULL);
OwnedConstThorRow ret = input->nextRow();
if (ret && prev && icompare->docompare(prev, ret) > 0)
{
// MORE - better to give mismatching rows than indexes?
throw MakeActivityException(this, TE_NotSorted, "detected incorrectly sorted rows (row %"RCPF"d, %"RCPF"d))", getDataLinkCount(), getDataLinkCount()+1);
}
prev.set(ret);
if (ret)
dataLinkIncrement();
return ret.getClear();
}
virtual void stop() override
{
stopInput(getDataLinkCount());
}
