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feat(hash): finish TSHashTable implementation

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Adam Heinermann 2025-10-16 15:39:14 -07:00 • committed by fallenoak
parent b52736a360
commit f0b31fb4f3
1 changed files with 53 additions and 17 deletions
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70
storm/hash/TSHashTable.hpp
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@ -44,6 +44,7 @@ class TSHashTable {
// Member functions // Member functions
uint32_t ComputeSlot(uint32_t hashval); uint32_t ComputeSlot(uint32_t hashval);
void GrowListArray(uint32_t newarraysize);
void Initialize(); void Initialize();
bool Initialized(); bool Initialized();
void InternalClear(int32_t warn); void InternalClear(int32_t warn);
@ -86,6 +87,31 @@ int32_t TSHashTable<T, TKey>::GetLinkOffset() {
return offsetof(T, m_linktoslot); return offsetof(T, m_linktoslot);
} }
template <class T, class TKey>
void TSHashTable<T, TKey>::GrowListArray(uint32_t newarraysize) {
uint32_t slotmask = this->m_slotmask + 1;
int32_t linkOffset = this->GetLinkOffset();
TSExplicitList<T, 0xDDDDDDDD> templist;
templist.ChangeLinkOffset(linkOffset);
for (uint32_t i = 0; i < slotmask; i++) {
for (T* ptr = this->m_slotlistarray[i].Head(); ptr; ptr = this->m_slotlistarray[i].Head()) {
templist.LinkNode(ptr, 2, 0);
}
}
this->m_slotlistarray.SetCount(newarraysize);
for (uint32_t i = 0; i < newarraysize; i++) {
this->m_slotlistarray[i].ChangeLinkOffset(linkOffset);
}
this->m_slotmask = newarraysize - 1;
for (T* ptr = templist.Head(); ptr; ptr = templist.Head()) {
auto& slot = this->m_slotlistarray[this->ComputeSlot(ptr->m_hashval)];
slot.LinkNode(ptr, 2, 0);
}
}
template <class T, class TKey> template <class T, class TKey>
T* TSHashTable<T, TKey>::Head() { T* TSHashTable<T, TKey>::Head() {
return this->m_fulllist.Head(); return this->m_fulllist.Head();
@ -183,8 +209,26 @@ T* TSHashTable<T, TKey>::InternalNewNode(uint32_t hashval, size_t extrabytes, ui
template <class T, class TKey> template <class T, class TKey>
int32_t TSHashTable<T, TKey>::MonitorFullness(uint32_t slot) { int32_t TSHashTable<T, TKey>::MonitorFullness(uint32_t slot) {
// TODO if (this->m_slotmask >= 0x1FFF) {
return 0;
}
if (this->m_fullnessIndicator > 3) {
this->m_fullnessIndicator -= 3;
}
else {
this->m_fullnessIndicator = 0;
}
for (T* ptr = this->m_slotlistarray[slot].Head(); reinterpret_cast<intptr_t>(ptr) > 0; ptr = this->m_slotlistarray[slot].RawNext(ptr)) {
this->m_fullnessIndicator++;
if (this->m_fullnessIndicator > 13) {
uint32_t grow_amt = 2 * this->m_slotmask + 2;
this->m_fullnessIndicator = 0;
this->GrowListArray(grow_amt);
return 1;
}
}
return 0; return 0;
} }
@ -230,29 +274,21 @@ T* TSHashTable<T, TKey>::Ptr(const char* str) {
uint32_t slot = this->ComputeSlot(hashval); uint32_t slot = this->ComputeSlot(hashval);
auto slotlist = &this->m_slotlistarray[slot]; auto slotlist = &this->m_slotlistarray[slot];
T* v7; T* ptr = slotlist->Head();
if (!ptr) {
v7 = slotlist->Head();
if (!v7) {
return nullptr; return nullptr;
} }
while (v7->m_hashval != hashval) { while (ptr->m_hashval != hashval || !(ptr->m_key == str)) {
uint32_t v8 = this->ComputeSlot(hashval); uint32_t slotIdx = this->ComputeSlot(hashval);
auto v9 = &this->m_slotlistarray[v8]; auto v9 = &this->m_slotlistarray[slotIdx];
v7 = v9->RawNext(v7); ptr = v9->RawNext(ptr);
if (reinterpret_cast<intptr_t>(v7) <= 0) { if (reinterpret_cast<intptr_t>(ptr) <= 0) {
return nullptr; return nullptr;
} }
} }
return ptr;
if (!(v7->m_key == str)) {
// TODO Handle collisions
}
return v7;
} }
template <class T, class TKey> template <class T, class TKey>