void getMetaInfo(ThorDataLinkMetaInfo &info)
{
initMetaInfo(info);
if (helper->canFilter())
info.canReduceNumRows = true;
calcMetaInfoSize(info,inputs.item(0));
}
void getMetaInfo(ThorDataLinkMetaInfo &info)
{
initMetaInfo(info);
info.isSequential = true;
info.canReduceNumRows = true; // not sure what selectNth is doing
calcMetaInfoSize(info,inputs.item(0));
}
void getMetaInfo(ThorDataLinkMetaInfo &info)
{
initMetaInfo(info);
info.canReduceNumRows = true;
info.totalRowsMax = helper->getLimit();
calcMetaInfoSize(info,inputs.item(0));
}
virtual void getMetaInfo(ThorDataLinkMetaInfo &info) const override
{
initMetaInfo(info);
info.canReduceNumRows = true;
info.totalRowsMax = helper->getLimit();
calcMetaInfoSize(info, queryInput(0));
}
void getMetaInfo(ThorDataLinkMetaInfo &info)
{
initMetaInfo(info);
info.fastThrough = true;
info.canReduceNumRows = true;
calcMetaInfoSize(info,inputs.item(0));
}
// IThorDataLink
virtual void getMetaInfo(ThorDataLinkMetaInfo &info) override
{
initMetaInfo(info);
info.fastThrough = true; // ish
if (helper->canFilter())
info.canReduceNumRows = true;
calcMetaInfoSize(info, queryInput(0));
}
void getMetaInfo(ThorDataLinkMetaInfo &info)
{
initMetaInfo(info);
info.canReduceNumRows = true;
info.canBufferInput = false;
info.totalRowsMax = rowLimit;
calcMetaInfoSize(info,inputs.item(0));
}
virtual void getMetaInfo(ThorDataLinkMetaInfo &info)
{
initMetaInfo(info);
info.canBufferInput = true;
if (helper->canFilter())
info.canReduceNumRows = true;
calcMetaInfoSize(info, queryInput(0));
}
void getMetaInfo(ThorDataLinkMetaInfo &info)
{
initMetaInfo(info);
info.isSequential = true;
info.canReduceNumRows = true;
info.canBufferInput = true;
calcMetaInfoSize(info, queryInput(0));
}
virtual void getMetaInfo(ThorDataLinkMetaInfo &info) override
{
initMetaInfo(info);
info.canReduceNumRows = true;
info.canBufferInput = false;
info.totalRowsMax = rowLimit;
calcMetaInfoSize(info, queryInput(0));
}
virtual void getMetaInfo(ThorDataLinkMetaInfo &info) const override
{
initMetaInfo(info);
if (rolloverEnabled)
{
info.isSequential = true;
info.unknownRowsOutput = true; // don't know how many rolled over
}
else
info.fastThrough = true;
calcMetaInfoSize(info, queryInput(0));
}
void CThorDataLink::calcMetaInfoSize(ThorDataLinkMetaInfo &info,IThorDataLink **link,unsigned ninputs)
{
if (!link||(ninputs<=1)) {
calcMetaInfoSize(info,link&&(ninputs==1)?link[0]:NULL);
return ;
}
if (!info.unknownRowsOutput) {
__int64 min=0;
__int64 max=0;
for (unsigned i=0;i<ninputs;i++ ) {
if (link[i]) {
ThorDataLinkMetaInfo prev;
link[i]->getMetaInfo(prev);
if (min>=0) {
if (prev.totalRowsMin>=0)
min += prev.totalRowsMin;
else
min = -1;
}
if (max>=0) {
if (prev.totalRowsMax>=0)
max += prev.totalRowsMax;
else
max = -1;
}
}
}
if (info.totalRowsMin<=0) {
if (!info.canReduceNumRows)
info.totalRowsMin = min;
else
info.totalRowsMin = 0;
}
if (info.totalRowsMax<0) {
if (!info.canIncreaseNumRows) {
info.totalRowsMax = max;
if (info.totalRowsMin>info.totalRowsMax)
info.totalRowsMax = -1;
}
}
}
else if (info.totalRowsMin<0)
info.totalRowsMin = 0; // a good bet
}
void getPartsMetaInfo(ThorDataLinkMetaInfo &metaInfo, unsigned nparts, IPartDescriptor **partDescs, CDiskPartHandlerBase *partHandler)
{
ThorDataLinkMetaInfo *metaInfos = new ThorDataLinkMetaInfo[nparts];
struct ownedMetaInfos
{
ThorDataLinkMetaInfo *&metaInfos;
ownedMetaInfos(ThorDataLinkMetaInfo *&_metaInfos) : metaInfos(_metaInfos) { }
~ownedMetaInfos() { delete [] metaInfos; }
} omi(metaInfos);
unsigned __int64 sizeTotal = 0;
unsigned p=0;
for (; p<nparts; p++)
{
initMetaInfo(metaInfos[p]);
partHandler->getMetaInfo(metaInfos[p], partDescs[p]);
sizeTotal += partDescs[p]->queryProperties().getPropInt64("@size");
}
calcMetaInfoSize(metaInfo, metaInfos, nparts);
if (!metaInfo.unknownRowsOutput && !metaInfo.canReduceNumRows && !metaInfo.canIncreaseNumRows)
metaInfo.byteTotal = sizeTotal;
}
virtual void getMetaInfo(ThorDataLinkMetaInfo &info)
{
initMetaInfo(info);
info.buffersInput = true;
calcMetaInfoSize(info,inputs.item(0));
}
virtual void getMetaInfo(ThorDataLinkMetaInfo &info) override
{
initMetaInfo(info);
info.fastThrough = false;
calcMetaInfoSize(info, queryInput(0));
}
void getMetaInfo(ThorDataLinkMetaInfo &info)
{
initMetaInfo(info);
calcMetaInfoSize(info,inputs.item(0));
}
void getMetaInfo(ThorDataLinkMetaInfo &info)
{
initMetaInfo(info);
info.fastThrough = true; // ish
calcMetaInfoSize(info,inputs.item(0));
}
