#ifndef ProfileTreeNode_h
#define ProfileTreeNode_h
namespace JSC {
class ProfileTreeNode {
typedef HashMap<String, ProfileTreeNode> Map;
typedef Map::KeyValuePairType MapEntry;
public:
ProfileTreeNode()
: m_count(0)
, m_children(0)
{
}
~ProfileTreeNode()
{
delete m_children;
}
ProfileTreeNode* sampleChild(const char* name)
{
if (!m_children)
m_children = new Map();
ProfileTreeNode newEntry;
Map::AddResult result = m_children->add(String(name), newEntry);
ProfileTreeNode* childInMap = &result.iterator->value;
++childInMap->m_count;
return childInMap;
}
void dump()
{
dumpInternal(0);
}
uint64_t count()
{
return m_count;
}
uint64_t childCount()
{
if (!m_children)
return 0;
uint64_t childCount = 0;
for (Map::iterator it = m_children->begin(); it != m_children->end(); ++it)
childCount += it->value.count();
return childCount;
}
private:
void dumpInternal(unsigned indent)
{
if (!m_children)
return;
Vector<MapEntry*> entries;
for (Map::iterator it = m_children->begin(); it != m_children->end(); ++it)
entries.append(&*it);
qsort(entries.begin(), entries.size(), sizeof(MapEntry*), compareEntries);
for (size_t e = 0; e < entries.size(); ++e) {
MapEntry* entry = entries[e];
for (unsigned i = 0; i < indent; ++i)
dataLogF(" ");
dataLogF("% 8lld: %s (%lld stack top)\n",
static_cast<long long>(entry->value.count()),
entry->key.utf8().data(),
static_cast<long long>(entry->value.count() - entry->value.childCount()));
entry->value.dumpInternal(indent + 1);
}
}
static int compareEntries(const void* a, const void* b)
{
uint64_t da = (*static_cast<MapEntry* const *>(a))->value.count();
uint64_t db = (*static_cast<MapEntry* const *>(b))->value.count();
return (da < db) - (da > db);
}
uint64_t m_count;
Map* m_children;
};
}
#endif // ProfileTreeNode_h