void RAS_BucketManager::OrderBuckets(const MT_Transform& cameratrans, BucketList& buckets, vector<sortedmeshslot>& slots, bool alpha)
{
BucketList::iterator bit;
list<RAS_MeshSlot>::iterator mit;
size_t size = 0, i = 0;
/* Camera's near plane equation: pnorm.dot(point) + pval,
* but we leave out pval since it's constant anyway */
const MT_Vector3 pnorm(cameratrans.getBasis()[2]);
for (bit = buckets.begin(); bit != buckets.end(); ++bit)
{
SG_DList::iterator<RAS_MeshSlot> mit((*bit)->GetActiveMeshSlots());
for(mit.begin(); !mit.end(); ++mit)
size++;
}
slots.resize(size);
for (bit = buckets.begin(); bit != buckets.end(); ++bit)
{
RAS_MaterialBucket* bucket = *bit;
RAS_MeshSlot* ms;
// remove the mesh slot form the list, it culls them automatically for next frame
while((ms = bucket->GetNextActiveMeshSlot())) {
slots[i++].set(ms, bucket, pnorm);
}
}
if(alpha)
sort(slots.begin(), slots.end(), backtofront());
else
sort(slots.begin(), slots.end(), fronttoback());
}
BucketListMerger::BucketListMerger(const BucketList& newList,
const BucketList& oldList,
uint64_t timestamp)
: _timestamp(timestamp)
{
uint32_t i = 0;
uint32_t j = 0;
while (i < newList.size() || j < oldList.size()) {
if (i >= newList.size()) {
_removedEntries.push_back(oldList[j].first);
j++;
} else if (j >= oldList.size()) {
_addedEntries.push_back(newList[i]);
i++;
} else if (newList[i].first.getId() > oldList[j].first.getId()) {
_removedEntries.push_back(oldList[j].first);
j++;
} else if (newList[i].first.getId() < oldList[j].first.getId()) {
_addedEntries.push_back(newList[i]);
i++;
} else {
if (!(newList[i].second == oldList[j].second)) {
_addedEntries.push_back(newList[i]);
}
i++; j++;
}
}
}
void numberOfCCsMaxCC(Graph* g, int* numberOfCCs, int* maxCC) {
List* intList = g->getAllIDs();
int numberOfCC = 0;
int numberOfNodes = 0;
int maxNumCC = 0;
LinearHashTable *hashTable = g->getHashTable();
BucketList **bucketListTable = hashTable->getTable();
for (int i = 0; i < hashTable->getCurrentBucketNo(); i++) {
BucketList *bucketList = bucketListTable[i];
BucketListItem *cur = (BucketListItem*) bucketList->getHead();
while (cur != NULL) {
Bucket *bucket = cur->getElement();
for (int j = 0; j < bucket->getSize(); j++) {
BucketItem *bi = bucket->getBucketItemByIndex(j);
int startNodeId = bi->getNodeID();
numberOfNodes = 0;
bool skip = true;
IntegerListItem* listNode = (IntegerListItem*) intList->getHead();
while (listNode != NULL) {
if (listNode->getInt() == startNodeId) {
intList->deleteItem(listNode);
numberOfCC++;
numberOfNodes++;
skip = false;
break;
}
listNode = (IntegerListItem*) listNode->getNext();
}
if (!skip) {
//reachNodeN from each node of the graph
ResultSet *res = reachNodeN(startNodeId, g);
Pair* pair;
while (pair = res->next()) {
IntegerListItem* searchListNode = (IntegerListItem*) intList->getHead();
while (searchListNode != NULL) {
if (searchListNode->getInt() == pair->getNodeId()) {
intList->deleteItem(searchListNode);
numberOfNodes++;
break;
}
searchListNode = (IntegerListItem*) searchListNode->getNext();
}
}
//delete res; //free(): invalid next size (fast):
}
if (numberOfNodes > maxNumCC)
maxNumCC = numberOfNodes;
}
cur = (BucketListItem*) cur->getNext();
}
}
delete intList;
*numberOfCCs = numberOfCC;
*maxCC = maxNumCC;
}
/**
* Calculates the degree distribution of a graph and visualizes it using GNUPLOT.
* Only considers out_degree.
*/
void degreeDistribution(Graph *g, bool checkFlag) {
int nodeNo = g->getNodeNo();
// Initialize array of N-1 elements to zeros ( holding the P(k)s, for k in (0,n-1) ).
double totalCounters[nodeNo];
for (int i = 0; i < nodeNo; i++)
totalCounters[i] = 0;
// Traverse HashTable and update all counters.
LinearHashTable *hashTable = g->getHashTable();
BucketList **bucketListTable = hashTable->getTable();
for (int i = 0; i < hashTable->getCurrentBucketNo(); i++) {
BucketList *bucketList = bucketListTable[i];
BucketListItem *cur = (BucketListItem*) bucketList->getHead();
while (cur) {
Bucket *bucket = cur->getElement();
// Count neighbors and update appropriate counter.
for (int j = 0; j < bucket->getSize(); j++) {
BucketItem *bi = bucket->getBucketItemByIndex(j);
int count = bi->getEdgeList()->getSize();
totalCounters[count]++;
}
cur = (BucketListItem*) cur->getNext();
}
}
// Divide each counter by N.
for (int i = 0; i < nodeNo; i++)
totalCounters[i] = totalCounters[i] / nodeNo;
if (checkFlag == true) {
assert(int(totalCounters[0] * 10000) == 9898);
assert(int(totalCounters[98] * 10000) == 101);
}
// Make data file.
ofstream myFile;
const char *filename = "graph_metrics/gnuplot/bin/data.txt";
myFile.open(filename);
if (myFile.fail()) {
cout << "ERROR: Unable to open " << filename << endl;
return;
}
myFile << "# K P(K)" << endl;
for (int i = 0; i < nodeNo; i++)
myFile << i << " " << 100 * totalCounters[i] << endl;
myFile.close();
// Run gnuplot to display graph.
#ifdef __CYGWIN__
system("cd graph_metrics/gnuplot/bin; ./gnuplot.exe degree.gnu");
#else
system("cd graph_metrics/gnuplot/bin; wine gnuplot.exe degree.gnu");
#endif
}
void initializeBucketList
(
Int f // The index of the front to operate on
)
{
// NOTE: tested by SPQR/Tcov, but not flagged as such in cov results
BucketList *dlbl = (&bucketLists[f]);
if(dlbl->useFlag) dlbl->Initialize();
}
BucketList* createBucketList(int nodeNo, int cellNo) {
BucketList *bucketList = new BucketList(cellNo);
Bucket *temp;
for (int i = 0; i < nodeNo; i++) {
temp = createBucket(cellNo, i * cellNo);
for (int j = 0; j < temp->getSize(); j++)
bucketList->insert(temp->getBucketItemByIndex(j));
}
return bucketList;
}
// This code was copied from bulk data and used to remove entities
// from buckets. In order to remove an entity, an appropriate entity
// must be found to copy into the hole. This logic will find the
// appropriate bucket which has an entity to copy into the bucket.
void Transaction::remove_entity_from_bucket ( Entity &e , BucketList &buckets )
{
Bucket *k = e.m_trans_bucket;
unsigned i = e.m_trans_bucket_ord;
Bucket * const first = k->m_key[ *k->m_key ] ? k->m_bucket : k ;
Bucket * const last = first->m_bucket ;
// Only move if not the last entity being removed
if ( last != k || k->m_size != i + 1 ) {
// Not the same bucket or not the last entity
// Copy last entity in last to ik slot i
Entity * const entity = last->m_entities[ last->m_size - 1 ];
k->m_entities[i] = entity ;
entity->m_trans_bucket = k ;
entity->m_trans_bucket_ord = i ;
}
--( last->m_size );
if ( last->m_size != 0 ) {
last->m_entities[ last->m_size ] = NULL ;
}
else {
// The current 'last' bucket is to be deleted.
// The previous 'last' bucket becomes the
// new 'last' bucket in the family:
std::vector<Bucket*>::iterator ik = lower_bound(buckets, last->m_key);
ThrowRequireMsg( ik != buckets.end() && last == *ik,
"Internal failure during removal of entity " << print_entity_key(e) );
ik = buckets.erase( ik );
if ( first != last ) { first->m_bucket = *--ik ; }
Bucket::destroy_bucket( last );
}
e.m_trans_bucket = NULL;
}
void print_bucket_list ( const BucketList &bl , std::ostream &os )
{
BucketList::const_iterator cur_bucket = bl.begin();
while ( cur_bucket != bl.end() )
{
os << "Bucket key: ";
//This is bad code, no longer works. Re-visit this if/when the
//Transaction class is ever resurrected.
// for ( unsigned i = 0 ; i <= (*cur_bucket)->m_key[0] ; i++ )
// os << (*cur_bucket)->m_key[i] << " ";
// os << "\n";
// os << "Entities: ";
// for ( unsigned i = 0 ; i != (*cur_bucket)->m_size ; i++ )
// os << (*cur_bucket)->m_entities[i]->identifier() << " ";
// os << "\n-------------------\n";
cur_bucket++;
}
}
void
checkDBAgainstBuckets(medida::MetricsRegistry& metrics,
BucketManager& bucketManager, Database& db,
BucketList& bl)
{
CLOG(INFO, "Bucket") << "CheckDB starting";
auto execTimer =
metrics.NewTimer({"bucket", "checkdb", "execute"}).TimeScope();
// Step 1: Collect all buckets to merge.
std::vector<std::shared_ptr<Bucket>> buckets;
for (size_t i = 0; i < BucketList::kNumLevels; ++i)
{
CLOG(INFO, "Bucket") << "CheckDB collecting buckets from level " << i;
auto& level = bl.getLevel(i);
auto& next = level.getNext();
if (next.isLive())
{
CLOG(INFO, "Bucket") << "CheckDB resolving future bucket on level "
<< i;
buckets.push_back(next.resolve());
}
buckets.push_back(level.getCurr());
buckets.push_back(level.getSnap());
}
if (buckets.empty())
{
CLOG(INFO, "Bucket") << "CheckDB found no buckets, returning";
return;
}
// Step 2: merge all buckets into a single super-bucket.
auto i = buckets.begin();
assert(i != buckets.end());
std::shared_ptr<Bucket> superBucket = *i;
while (++i != buckets.end())
{
auto mergeTimer =
metrics.NewTimer({"bucket", "checkdb", "merge"}).TimeScope();
assert(superBucket);
assert(*i);
superBucket = Bucket::merge(bucketManager, *i, superBucket);
assert(superBucket);
}
CLOG(INFO, "Bucket") << "CheckDB starting object comparison";
// Step 3: scan the superbucket, checking each object against the DB and
// counting objects along the way.
uint64_t nAccounts = 0, nTrustLines = 0, nOffers = 0;
{
auto& meter = metrics.NewMeter({"bucket", "checkdb", "object-compare"},
"comparison");
auto compareTimer =
metrics.NewTimer({"bucket", "checkdb", "compare"}).TimeScope();
for (Bucket::InputIterator iter(superBucket); iter; ++iter)
{
meter.Mark();
auto& e = *iter;
if (e.type() == LIVEENTRY)
{
switch (e.liveEntry().data.type())
{
case ACCOUNT:
++nAccounts;
break;
case TRUSTLINE:
++nTrustLines;
break;
case OFFER:
++nOffers;
break;
}
EntryFrame::checkAgainstDatabase(e.liveEntry(), db);
if (meter.count() % 100 == 0)
{
CLOG(INFO, "Bucket") << "CheckDB compared " << meter.count()
<< " objects";
}
}
}
}
// Step 4: confirm size of datasets matches size of datasets in DB.
soci::session& sess = db.getSession();
compareSizes("account", AccountFrame::countObjects(sess), nAccounts);
compareSizes("trustline", TrustFrame::countObjects(sess), nTrustLines);
compareSizes("offer", OfferFrame::countObjects(sess), nOffers);
}