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@ -38,8 +38,7 @@ template<class Type> bool resize(Array<Type>& array, usize num);
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template<class Type> bool set_capacity(Array<Type>& array, usize new_capacity);
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template<class Type> ArrayHeader* get_header(Array<Type>& array);
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struct ArrayHeader
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{
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struct ArrayHeader {
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AllocatorInfo Allocator;
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usize Capacity;
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usize Num;
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@ -48,554 +47,573 @@ struct ArrayHeader
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template<class Type>
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struct Array
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{
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Type* Data;
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Type* Data;
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#if 1
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#pragma region Member Mapping
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forceinline static Array init(AllocatorInfo allocator) { return GEN_NS array_init<Type>(allocator); }
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forceinline static Array init_reserve(AllocatorInfo allocator, ssize capacity) { return GEN_NS array_init_reserve<Type>(allocator, capacity); }
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forceinline static usize grow_formula(ssize value) { return GEN_NS array_grow_formula<Type>(value); }
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forceinline static Array init(AllocatorInfo allocator) { return GEN_NS array_init<Type>(allocator); }
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forceinline static Array init_reserve(AllocatorInfo allocator, ssize capacity) { return GEN_NS array_init_reserve<Type>(allocator, capacity); }
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forceinline static usize grow_formula(ssize value) { return GEN_NS array_grow_formula<Type>(value); }
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forceinline bool append(Array other) { return GEN_NS append<Type>(*this, other); }
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forceinline bool append(Type value) { return GEN_NS append<Type>(*this, value); }
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forceinline bool append(Type* items, usize item_num) { return GEN_NS append<Type>(*this, items, item_num); }
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forceinline bool append_at(Type item, usize idx) { return GEN_NS append_at<Type>(*this, item, idx); }
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forceinline bool append_at(Type* items, usize item_num, usize idx) { return GEN_NS append_at<Type>(*this, items, item_num, idx); }
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forceinline Type& back() { return GEN_NS back<Type>(*this); }
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forceinline void clear() { GEN_NS clear<Type>(*this); }
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forceinline bool fill(usize begin, usize end, Type value) { return GEN_NS fill<Type>(*this, begin, end, value); }
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forceinline void free() { GEN_NS free<Type>(*this); }
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forceinline ArrayHeader* get_header() { return GEN_NS get_header<Type>(*this); }
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forceinline bool grow(usize min_capacity) { return GEN_NS grow<Type>(*this, min_capacity); }
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forceinline usize num() { return GEN_NS num<Type>(*this); }
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forceinline void pop() { GEN_NS pop<Type>(*this); }
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forceinline void remove_at(usize idx) { GEN_NS remove_at<Type>(*this, idx); }
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forceinline bool reserve(usize new_capacity) { return GEN_NS reserve<Type>(*this, new_capacity); }
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forceinline bool resize(usize num) { return GEN_NS resize<Type>(*this, num); }
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forceinline bool set_capacity(usize new_capacity) { return GEN_NS set_capacity<Type>(*this, new_capacity); }
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forceinline bool append(Array other) { return GEN_NS append<Type>(*this, other); }
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forceinline bool append(Type value) { return GEN_NS append<Type>(*this, value); }
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forceinline bool append(Type* items, usize item_num) { return GEN_NS append<Type>(*this, items, item_num); }
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forceinline bool append_at(Type item, usize idx) { return GEN_NS append_at<Type>(*this, item, idx); }
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forceinline bool append_at(Type* items, usize item_num, usize idx) { return GEN_NS append_at<Type>(*this, items, item_num, idx); }
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forceinline Type& back() { return GEN_NS back<Type>(*this); }
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forceinline void clear() { GEN_NS clear<Type>(*this); }
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forceinline bool fill(usize begin, usize end, Type value) { return GEN_NS fill<Type>(*this, begin, end, value); }
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forceinline void free() { GEN_NS free<Type>(*this); }
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forceinline ArrayHeader* get_header() { return GEN_NS get_header<Type>(*this); }
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forceinline bool grow(usize min_capacity) { return GEN_NS grow<Type>(*this, min_capacity); }
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forceinline usize num() { return GEN_NS num<Type>(*this); }
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forceinline void pop() { GEN_NS pop<Type>(*this); }
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forceinline void remove_at(usize idx) { GEN_NS remove_at<Type>(*this, idx); }
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forceinline bool reserve(usize new_capacity) { return GEN_NS reserve<Type>(*this, new_capacity); }
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forceinline bool resize(usize num) { return GEN_NS resize<Type>(*this, num); }
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forceinline bool set_capacity(usize new_capacity) { return GEN_NS set_capacity<Type>(*this, new_capacity); }
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forceinline operator Type*() { return Data; }
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forceinline operator Type const*() const { return Data; }
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forceinline Type* begin() { return Data; }
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forceinline Type* end() { return Data + get_header()->Num; }
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forceinline operator Type*() { return Data; }
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forceinline operator Type const*() const { return Data; }
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forceinline Type* begin() { return Data; }
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forceinline Type* end() { return Data + get_header()->Num; }
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#pragma endregion Member Mapping
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#endif
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};
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template<class Type> inline
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Array<Type> array_init(AllocatorInfo allocator)
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{
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return array_init_reserve<Type>(allocator, array_grow_formula<Type>(0));
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Array<Type> array_init(AllocatorInfo allocator) {
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return array_init_reserve<Type>(allocator, array_grow_formula<Type>(0));
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}
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template<class Type> inline
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Array<Type> array_init_reserve(AllocatorInfo allocator, ssize capacity)
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{
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ArrayHeader* header = rcast(ArrayHeader*, alloc(allocator, sizeof(ArrayHeader) + sizeof(Type) * capacity));
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ArrayHeader* header = rcast(ArrayHeader*, alloc(allocator, sizeof(ArrayHeader) + sizeof(Type) * capacity));
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if (header == nullptr)
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return {nullptr};
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if (header == nullptr)
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return {nullptr};
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header->Allocator = allocator;
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header->Capacity = capacity;
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header->Num = 0;
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header->Allocator = allocator;
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header->Capacity = capacity;
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header->Num = 0;
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return {rcast(Type*, header + 1)};
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return {rcast(Type*, header + 1)};
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}
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template<class Type> inline
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usize array_grow_formula(ssize value)
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{
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return 2 * value + 8;
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usize array_grow_formula(ssize value) {
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return 2 * value + 8;
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}
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template<class Type> inline
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bool append(Array<Type>& array, Array<Type> other)
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{
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return append(array, other, num(other));
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bool append(Array<Type>& array, Array<Type> other) {
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return append(array, other, num(other));
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}
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template<class Type> inline
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bool append(Array<Type>& array, Type value)
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{
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ArrayHeader* header = get_header(array);
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ArrayHeader* header = get_header(array);
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if (header->Num == header->Capacity)
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{
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if (!grow(array, header->Capacity))
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return false;
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if (header->Num == header->Capacity)
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{
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if (!grow(array, header->Capacity))
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return false;
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header = get_header(array);
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}
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header = get_header(array);
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}
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array.Data[header->Num] = value;
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header->Num++;
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array.Data[header->Num] = value;
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header->Num++;
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return true;
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return true;
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}
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template<class Type> inline
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bool append(Array<Type>& array, Type* items, usize item_num)
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{
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ArrayHeader* header = get_header(array);
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ArrayHeader* header = get_header(array);
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if (header->Num + item_num > header->Capacity)
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{
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if (!grow(array, header->Capacity + item_num))
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return false;
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if (header->Num + item_num > header->Capacity)
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{
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if (!grow(array, header->Capacity + item_num))
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return false;
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header = get_header(array);
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}
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header = get_header(array);
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}
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mem_copy(array.Data + header->Num, items, item_num * sizeof(Type));
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header->Num += item_num;
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mem_copy(array.Data + header->Num, items, item_num * sizeof(Type));
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header->Num += item_num;
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return true;
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return true;
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}
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template<class Type> inline
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bool append_at(Array<Type>& array, Type item, usize idx)
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{
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ArrayHeader* header = get_header(array);
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ArrayHeader* header = get_header(array);
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if (idx >= header->Num)
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idx = header->Num - 1;
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if (idx >= header->Num)
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idx = header->Num - 1;
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if (idx < 0)
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idx = 0;
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if (idx < 0)
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idx = 0;
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if (header->Capacity < header->Num + 1)
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{
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if (!grow(array, header->Capacity + 1))
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return false;
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if (header->Capacity < header->Num + 1)
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{
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if (!grow(array, header->Capacity + 1))
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return false;
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header = get_header(array);
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}
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header = get_header(array);
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}
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Type* target = array.Data + idx;
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Type* target = array.Data + idx;
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mem_move(target + 1, target, (header->Num - idx) * sizeof(Type));
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header->Num++;
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mem_move(target + 1, target, (header->Num - idx) * sizeof(Type));
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header->Num++;
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return true;
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return true;
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}
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template<class Type> inline
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bool append_at(Array<Type>& array, Type* items, usize item_num, usize idx)
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{
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ArrayHeader* header = get_header(array);
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ArrayHeader* header = get_header(array);
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if (idx >= header->Num)
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{
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return append(array, items, item_num);
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}
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if (idx >= header->Num)
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{
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return append(array, items, item_num);
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}
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if (item_num > header->Capacity)
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{
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if (!grow(array, header->Capacity + item_num))
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return false;
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if (item_num > header->Capacity)
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{
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if (!grow(array, header->Capacity + item_num))
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return false;
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header = get_header(array);
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}
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header = get_header(array);
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}
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Type* target = array.Data + idx + item_num;
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Type* src = array.Data + idx;
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Type* target = array.Data + idx + item_num;
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Type* src = array.Data + idx;
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mem_move(target, src, (header->Num - idx) * sizeof(Type));
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mem_copy(src, items, item_num * sizeof(Type));
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header->Num += item_num;
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mem_move(target, src, (header->Num - idx) * sizeof(Type));
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mem_copy(src, items, item_num * sizeof(Type));
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header->Num += item_num;
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return true;
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return true;
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}
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template<class Type> inline
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Type& back(Array<Type>& array)
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{
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ArrayHeader* header = get_header(array);
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return array.Data[header->Num - 1];
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Type& back(Array<Type>& array) {
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ArrayHeader* header = get_header(array);
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return array.Data[header->Num - 1];
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}
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template<class Type> inline
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void clear(Array<Type>& array)
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{
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ArrayHeader* header = get_header(array);
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header->Num = 0;
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void clear(Array<Type>& array) {
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ArrayHeader* header = get_header(array);
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header->Num = 0;
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}
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template<class Type> inline
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bool fill(Array<Type>& array, usize begin, usize end, Type value)
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{
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ArrayHeader* header = get_header(array);
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ArrayHeader* header = get_header(array);
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if (begin < 0 || end > header->Num)
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return false;
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if (begin < 0 || end > header->Num)
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return false;
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for (ssize idx = ssize(begin); idx < ssize(end); idx++)
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{
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array.Data[idx] = value;
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}
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for (ssize idx = ssize(begin); idx < ssize(end); idx++)
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{
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array.Data[idx] = value;
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}
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return true;
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return true;
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}
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template<class Type> inline
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void free(Array<Type>& array)
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{
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ArrayHeader* header = get_header(array);
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gen::free(header->Allocator, header);
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array.Data = nullptr;
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void free(Array<Type>& array) {
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ArrayHeader* header = get_header(array);
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gen::free(header->Allocator, header);
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array.Data = nullptr;
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}
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template<class Type> inline
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ArrayHeader* get_header(Array<Type>& array)
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{
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using NonConstType = TRemoveConst<Type>;
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return rcast(ArrayHeader*, const_cast<NonConstType*>(array.Data)) - 1;
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ArrayHeader* get_header(Array<Type>& array) {
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using NonConstType = TRemoveConst<Type>;
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return rcast(ArrayHeader*, const_cast<NonConstType*>(array.Data)) - 1;
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}
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template<class Type> inline
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bool grow(Array<Type>& array, usize min_capacity)
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{
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ArrayHeader* header = get_header(array);
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usize new_capacity = array_grow_formula<Type>(header->Capacity);
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ArrayHeader* header = get_header(array);
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usize new_capacity = array_grow_formula<Type>(header->Capacity);
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if (new_capacity < min_capacity)
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new_capacity = min_capacity;
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if (new_capacity < min_capacity)
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new_capacity = min_capacity;
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return set_capacity(array, new_capacity);
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return set_capacity(array, new_capacity);
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}
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template<class Type> inline
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usize num(Array<Type>& array)
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{
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return get_header(array)->Num;
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usize num(Array<Type>& array) {
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return get_header(array)->Num;
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}
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template<class Type> inline
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void pop(Array<Type>& array)
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{
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ArrayHeader* header = get_header(array);
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GEN_ASSERT(header->Num > 0);
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header->Num--;
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void pop(Array<Type>& array) {
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ArrayHeader* header = get_header(array);
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GEN_ASSERT(header->Num > 0);
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header->Num--;
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}
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template<class Type> inline
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void remove_at(Array<Type>& array, usize idx)
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{
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ArrayHeader* header = get_header(array);
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GEN_ASSERT(idx < header->Num);
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ArrayHeader* header = get_header(array);
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GEN_ASSERT(idx < header->Num);
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mem_move(array.Data + idx, array.Data + idx + 1, sizeof(Type) * (header->Num - idx - 1));
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header->Num--;
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mem_move(array.Data + idx, array.Data + idx + 1, sizeof(Type) * (header->Num - idx - 1));
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header->Num--;
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}
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template<class Type> inline
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bool reserve(Array<Type>& array, usize new_capacity)
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{
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ArrayHeader* header = get_header(array);
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ArrayHeader* header = get_header(array);
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if (header->Capacity < new_capacity)
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return set_capacity(array, new_capacity);
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if (header->Capacity < new_capacity)
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return set_capacity(array, new_capacity);
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return true;
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return true;
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}
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template<class Type> inline
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bool resize(Array<Type>& array, usize num)
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{
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ArrayHeader* header = get_header(array);
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ArrayHeader* header = get_header(array);
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if (header->Capacity < num)
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{
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if (!grow(array, num))
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return false;
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if (header->Capacity < num) {
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if (!grow(array, num))
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return false;
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header = get_header(array);
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}
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header = get_header(array);
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}
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header->Num = num;
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return true;
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header->Num = num;
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return true;
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}
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template<class Type> inline
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bool set_capacity(Array<Type>& array, usize new_capacity)
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{
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ArrayHeader* header = get_header(array);
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ArrayHeader* header = get_header(array);
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if (new_capacity == header->Capacity)
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return true;
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if (new_capacity == header->Capacity)
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return true;
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if (new_capacity < header->Num)
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{
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header->Num = new_capacity;
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return true;
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}
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if (new_capacity < header->Num)
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{
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header->Num = new_capacity;
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return true;
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}
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ssize size = sizeof(ArrayHeader) + sizeof(Type) * new_capacity;
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ArrayHeader* new_header = rcast(ArrayHeader*, alloc(header->Allocator, size));
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ssize size = sizeof(ArrayHeader) + sizeof(Type) * new_capacity;
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ArrayHeader* new_header = rcast(ArrayHeader*, alloc(header->Allocator, size));
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if (new_header == nullptr)
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return false;
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if (new_header == nullptr)
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return false;
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mem_move(new_header, header, sizeof(ArrayHeader) + sizeof(Type) * header->Num);
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mem_move(new_header, header, sizeof(ArrayHeader) + sizeof(Type) * header->Num);
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new_header->Capacity = new_capacity;
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new_header->Capacity = new_capacity;
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gen::free(header->Allocator, header);
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GEN_NS free(header->Allocator, header);
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array.Data = rcast(Type*, new_header + 1);
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return true;
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array.Data = rcast(Type*, new_header + 1);
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return true;
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}
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#pragma endregion Array
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|
||||
// TODO(Ed) : This thing needs ALOT of work.
|
||||
|
||||
#pragma region HashTable
|
||||
template<class Type> struct HashTable;
|
||||
|
||||
struct HashTableFindResult {
|
||||
ssize HashIndex;
|
||||
ssize PrevIndex;
|
||||
ssize EntryIndex;
|
||||
};
|
||||
|
||||
template<class Type>
|
||||
struct HashTableEntry {
|
||||
u64 Key;
|
||||
ssize Next;
|
||||
Type Value;
|
||||
};
|
||||
|
||||
// Forward declarations for all lifted functions
|
||||
template<class Type> HashTable<Type> hashtable_init(AllocatorInfo allocator);
|
||||
template<class Type> HashTable<Type> hashtable_init_reserve(AllocatorInfo allocator, usize num);
|
||||
template<class Type> void clear(HashTable<Type>& table);
|
||||
template<class Type> void destroy(HashTable<Type>& table);
|
||||
template<class Type> Type* get(HashTable<Type>& table, u64 key);
|
||||
template<class Type> void grow(HashTable<Type>& table);
|
||||
template<class Type> void rehash(HashTable<Type>& table, ssize new_num);
|
||||
template<class Type> void rehash_fast(HashTable<Type>& table);
|
||||
template<class Type> void remove(HashTable<Type>& table, u64 key);
|
||||
template<class Type> void remove_entry(HashTable<Type>& table, ssize idx);
|
||||
template<class Type> void set(HashTable<Type>& table, u64 key, Type value);
|
||||
template<class Type> ssize slot(HashTable<Type>& table, u64 key);
|
||||
template<class Type> ssize add_entry(HashTable<Type>& table, u64 key);
|
||||
template<class Type> HashTableFindResult find(HashTable<Type>& table, u64 key);
|
||||
template<class Type> bool full(HashTable<Type>& table);
|
||||
template<class Type> void map(HashTable<Type>& table, void (*map_proc)(u64 key, Type value));
|
||||
template<class Type> void map_mut(HashTable<Type>& table, void (*map_proc)(u64 key, Type* value));
|
||||
|
||||
template<typename Type>
|
||||
struct HashTable
|
||||
{
|
||||
struct FindResult
|
||||
{
|
||||
ssize HashIndex;
|
||||
ssize PrevIndex;
|
||||
ssize EntryIndex;
|
||||
};
|
||||
|
||||
struct Entry
|
||||
{
|
||||
u64 Key;
|
||||
ssize Next;
|
||||
Type Value;
|
||||
};
|
||||
|
||||
static constexpr f32 CriticalLoadScale = 0.7f;
|
||||
|
||||
static
|
||||
HashTable init( AllocatorInfo allocator )
|
||||
{
|
||||
HashTable<Type> result = init_reserve(allocator, 8);
|
||||
return result;
|
||||
}
|
||||
Array<ssize> Hashes;
|
||||
Array<HashTableEntry<Type>> Entries;
|
||||
|
||||
static
|
||||
HashTable init_reserve( AllocatorInfo allocator, usize num )
|
||||
{
|
||||
HashTable<Type> result = { { nullptr }, { nullptr } };
|
||||
#if 1
|
||||
#pragma region Member Mapping
|
||||
forceinline static HashTable init(AllocatorInfo allocator) { return GEN_NS hashtable_init<Type>(allocator); }
|
||||
forceinline static HashTable init_reserve(AllocatorInfo allocator, usize num) { return GEN_NS hashtable_init_reserve<Type>(allocator, num); }
|
||||
|
||||
result.Hashes = Array<ssize>::init_reserve( allocator, num );
|
||||
result.Hashes.get_header()->Num = num;
|
||||
result.Hashes.resize( num );
|
||||
result.Hashes.fill( 0, num, -1);
|
||||
|
||||
result.Entries = Array<Entry>::init_reserve( allocator, num );
|
||||
return result;
|
||||
}
|
||||
|
||||
void clear( void )
|
||||
{
|
||||
Entries.clear();
|
||||
Hashes.fill( 0, Hashes.num(), -1);
|
||||
}
|
||||
|
||||
void destroy( void )
|
||||
{
|
||||
if ( Hashes && Hashes.get_header()->Capacity )
|
||||
{
|
||||
Hashes.free();
|
||||
Entries.free();
|
||||
}
|
||||
}
|
||||
|
||||
Type* get( u64 key )
|
||||
{
|
||||
ssize idx = find( key ).EntryIndex;
|
||||
if ( idx >= 0 )
|
||||
return & Entries[ idx ].Value;
|
||||
|
||||
return nullptr;
|
||||
}
|
||||
|
||||
using MapProc = void (*)( u64 key, Type value );
|
||||
|
||||
void map( MapProc map_proc )
|
||||
{
|
||||
GEN_ASSERT_NOT_NULL( map_proc );
|
||||
|
||||
for ( ssize idx = 0; idx < ssize(Entries.num()); ++idx )
|
||||
{
|
||||
map_proc( Entries[ idx ].Key, Entries[ idx ].Value );
|
||||
}
|
||||
}
|
||||
|
||||
using MapMutProc = void (*)( u64 key, Type* value );
|
||||
|
||||
void map_mut( MapMutProc map_proc )
|
||||
{
|
||||
GEN_ASSERT_NOT_NULL( map_proc );
|
||||
|
||||
for ( ssize idx = 0; idx < ssize(Entries.num()); ++idx )
|
||||
{
|
||||
map_proc( Entries[ idx ].Key, & Entries[ idx ].Value );
|
||||
}
|
||||
}
|
||||
|
||||
void grow()
|
||||
{
|
||||
ssize new_num = Array<Entry>::grow_formula( Entries.num() );
|
||||
rehash( new_num );
|
||||
}
|
||||
|
||||
void rehash( ssize new_num )
|
||||
{
|
||||
ssize last_added_index;
|
||||
|
||||
HashTable<Type> new_ht = init_reserve( Hashes.get_header()->Allocator, new_num );
|
||||
for ( ssize idx = 0; idx < ssize(Entries.num()); ++idx )
|
||||
{
|
||||
FindResult find_result;
|
||||
|
||||
Entry& entry = Entries[ idx ];
|
||||
find_result = new_ht.find( entry.Key );
|
||||
last_added_index = new_ht.add_entry( entry.Key );
|
||||
|
||||
if ( find_result.PrevIndex < 0 )
|
||||
new_ht.Hashes[ find_result.HashIndex ] = last_added_index;
|
||||
else
|
||||
new_ht.Entries[ find_result.PrevIndex ].Next = last_added_index;
|
||||
|
||||
new_ht.Entries[ last_added_index ].Next = find_result.EntryIndex;
|
||||
new_ht.Entries[ last_added_index ].Value = entry.Value;
|
||||
}
|
||||
|
||||
destroy();
|
||||
*this = new_ht;
|
||||
}
|
||||
|
||||
void rehash_fast()
|
||||
{
|
||||
ssize idx;
|
||||
|
||||
for ( idx = 0; idx < ssize(Entries.num()); idx++ )
|
||||
Entries[ idx ].Next = -1;
|
||||
|
||||
for ( idx = 0; idx < ssize(Hashes.num()); idx++ )
|
||||
Hashes[ idx ] = -1;
|
||||
|
||||
for ( idx = 0; idx < ssize(Entries.num()); idx++ )
|
||||
{
|
||||
Entry* entry;
|
||||
FindResult find_result;
|
||||
|
||||
entry = & Entries[ idx ];
|
||||
find_result = find( entry->Key );
|
||||
|
||||
if ( find_result.PrevIndex < 0 )
|
||||
Hashes[ find_result.HashIndex ] = idx;
|
||||
else
|
||||
Entries[ find_result.PrevIndex ].Next = idx;
|
||||
}
|
||||
}
|
||||
|
||||
void remove( u64 key )
|
||||
{
|
||||
FindResult find_result = find( key);
|
||||
|
||||
if ( find_result.EntryIndex >= 0 )
|
||||
{
|
||||
Entries.remove_at( find_result.EntryIndex );
|
||||
rehash_fast();
|
||||
}
|
||||
}
|
||||
|
||||
void remove_entry( ssize idx )
|
||||
{
|
||||
Entries.remove_at( idx );
|
||||
}
|
||||
|
||||
void set( u64 key, Type value )
|
||||
{
|
||||
ssize idx;
|
||||
FindResult find_result;
|
||||
|
||||
if ( full() )
|
||||
grow();
|
||||
|
||||
find_result = find( key );
|
||||
if ( find_result.EntryIndex >= 0 )
|
||||
{
|
||||
idx = find_result.EntryIndex;
|
||||
}
|
||||
else
|
||||
{
|
||||
idx = add_entry( key );
|
||||
|
||||
if ( find_result.PrevIndex >= 0 )
|
||||
{
|
||||
Entries[ find_result.PrevIndex ].Next = idx;
|
||||
}
|
||||
else
|
||||
{
|
||||
Hashes[ find_result.HashIndex ] = idx;
|
||||
}
|
||||
}
|
||||
|
||||
Entries[ idx ].Value = value;
|
||||
|
||||
if ( full() )
|
||||
grow();
|
||||
}
|
||||
|
||||
ssize slot( u64 key )
|
||||
{
|
||||
for ( ssize idx = 0; idx < ssize(Hashes.num()); ++idx )
|
||||
if ( Hashes[ idx ] == key )
|
||||
return idx;
|
||||
|
||||
return -1;
|
||||
}
|
||||
|
||||
Array< ssize> Hashes;
|
||||
Array< Entry> Entries;
|
||||
|
||||
protected:
|
||||
|
||||
ssize add_entry( u64 key )
|
||||
{
|
||||
ssize idx;
|
||||
Entry entry = { key, -1 };
|
||||
|
||||
idx = Entries.num();
|
||||
Entries.append( entry );
|
||||
return idx;
|
||||
}
|
||||
|
||||
FindResult find( u64 key )
|
||||
{
|
||||
FindResult result = { -1, -1, -1 };
|
||||
|
||||
if ( Hashes.num() > 0 )
|
||||
{
|
||||
result.HashIndex = key % Hashes.num();
|
||||
result.EntryIndex = Hashes[ result.HashIndex ];
|
||||
|
||||
while ( result.EntryIndex >= 0 )
|
||||
{
|
||||
if ( Entries[ result.EntryIndex ].Key == key )
|
||||
break;
|
||||
|
||||
result.PrevIndex = result.EntryIndex;
|
||||
result.EntryIndex = Entries[ result.EntryIndex ].Next;
|
||||
}
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
b32 full()
|
||||
{
|
||||
usize critical_load = usize( CriticalLoadScale * f32(Hashes.num()) );
|
||||
b32 result = Entries.num() > critical_load;
|
||||
return result;
|
||||
}
|
||||
forceinline void clear() { GEN_NS clear<Type>(*this); }
|
||||
forceinline void destroy() { GEN_NS destroy<Type>(*this); }
|
||||
forceinline Type* get(u64 key) { return GEN_NS get<Type>(*this, key); }
|
||||
forceinline void grow() { GEN_NS grow<Type>(*this); }
|
||||
forceinline void rehash(ssize new_num) { GEN_NS rehash<Type>(*this, new_num); }
|
||||
forceinline void rehash_fast() { GEN_NS rehash_fast<Type>(*this); }
|
||||
forceinline void remove(u64 key) { GEN_NS remove<Type>(*this, key); }
|
||||
forceinline void remove_entry(ssize idx) { GEN_NS remove_entry<Type>(*this, idx); }
|
||||
forceinline void set(u64 key, Type value) { GEN_NS set<Type>(*this, key, value); }
|
||||
forceinline ssize slot(u64 key) { return GEN_NS slot<Type>(*this, key); }
|
||||
forceinline void map(void (*proc)(u64, Type)) { GEN_NS map<Type>(*this, proc); }
|
||||
forceinline void map_mut(void (*proc)(u64, Type*)) { GEN_NS map_mut<Type>(*this, proc); }
|
||||
#pragma endregion Member Mapping
|
||||
#endif
|
||||
};
|
||||
|
||||
template<typename Type> inline
|
||||
HashTable<Type> hashtable_init(AllocatorInfo allocator) {
|
||||
HashTable<Type> result = hashtable_init_reserve<Type>(allocator, 8);
|
||||
return result;
|
||||
}
|
||||
|
||||
template<typename Type> inline
|
||||
HashTable<Type> hashtable_init_reserve(AllocatorInfo allocator, usize num)
|
||||
{
|
||||
HashTable<Type> result = { { nullptr }, { nullptr } };
|
||||
|
||||
result.Hashes = Array<ssize>::init_reserve(allocator, num);
|
||||
result.Hashes.get_header()->Num = num;
|
||||
result.Hashes.resize(num);
|
||||
result.Hashes.fill(0, num, -1);
|
||||
|
||||
result.Entries = Array<HashTableEntry<Type>>::init_reserve(allocator, num);
|
||||
return result;
|
||||
}
|
||||
|
||||
template<typename Type> inline
|
||||
void clear(HashTable<Type>& table) {
|
||||
table.Entries.clear();
|
||||
table.Hashes.fill(0, table.Hashes.num(), -1);
|
||||
}
|
||||
|
||||
template<typename Type> inline
|
||||
void destroy(HashTable<Type>& table) {
|
||||
if (table.Hashes && table.Hashes.get_header()->Capacity) {
|
||||
table.Hashes.free();
|
||||
table.Entries.free();
|
||||
}
|
||||
}
|
||||
|
||||
template<typename Type> inline
|
||||
Type* get(HashTable<Type>& table, u64 key) {
|
||||
ssize idx = find(table, key).EntryIndex;
|
||||
if (idx >= 0)
|
||||
return &table.Entries[idx].Value;
|
||||
|
||||
return nullptr;
|
||||
}
|
||||
|
||||
template<typename Type> inline
|
||||
void map(HashTable<Type>& table, void (*map_proc)(u64 key, Type value)) {
|
||||
GEN_ASSERT_NOT_NULL(map_proc);
|
||||
|
||||
for (ssize idx = 0; idx < ssize(table.Entries.num()); ++idx) {
|
||||
map_proc(table.Entries[idx].Key, table.Entries[idx].Value);
|
||||
}
|
||||
}
|
||||
|
||||
template<typename Type> inline
|
||||
void map_mut(HashTable<Type>& table, void (*map_proc)(u64 key, Type* value)) {
|
||||
GEN_ASSERT_NOT_NULL(map_proc);
|
||||
|
||||
for (ssize idx = 0; idx < ssize(table.Entries.num()); ++idx) {
|
||||
map_proc(table.Entries[idx].Key, &table.Entries[idx].Value);
|
||||
}
|
||||
}
|
||||
|
||||
template<typename Type> inline
|
||||
void grow(HashTable<Type>& table) {
|
||||
ssize new_num = Array<HashTableEntry<Type>>::grow_formula(table.Entries.num());
|
||||
rehash(table, new_num);
|
||||
}
|
||||
|
||||
template<typename Type> inline
|
||||
void rehash(HashTable<Type>& table, ssize new_num)
|
||||
{
|
||||
ssize last_added_index;
|
||||
HashTable<Type> new_ht = hashtable_init_reserve<Type>(table.Hashes.get_header()->Allocator, new_num);
|
||||
|
||||
for (ssize idx = 0; idx < ssize(table.Entries.num()); ++idx)
|
||||
{
|
||||
HashTableFindResult find_result;
|
||||
HashTableEntry<Type>& entry = table.Entries[idx];
|
||||
|
||||
find_result = find(new_ht, entry.Key);
|
||||
last_added_index = add_entry(new_ht, entry.Key);
|
||||
|
||||
if (find_result.PrevIndex < 0)
|
||||
new_ht.Hashes[find_result.HashIndex] = last_added_index;
|
||||
else
|
||||
new_ht.Entries[find_result.PrevIndex].Next = last_added_index;
|
||||
|
||||
new_ht.Entries[last_added_index].Next = find_result.EntryIndex;
|
||||
new_ht.Entries[last_added_index].Value = entry.Value;
|
||||
}
|
||||
|
||||
destroy(table);
|
||||
table = new_ht;
|
||||
}
|
||||
|
||||
template<typename Type> inline
|
||||
void rehash_fast(HashTable<Type>& table)
|
||||
{
|
||||
ssize idx;
|
||||
|
||||
for (idx = 0; idx < ssize(table.Entries.num()); idx++)
|
||||
table.Entries[idx].Next = -1;
|
||||
|
||||
for (idx = 0; idx < ssize(table.Hashes.num()); idx++)
|
||||
table.Hashes[idx] = -1;
|
||||
|
||||
for (idx = 0; idx < ssize(table.Entries.num()); idx++)
|
||||
{
|
||||
HashTableEntry<Type>* entry;
|
||||
HashTableFindResult find_result;
|
||||
|
||||
entry = &table.Entries[idx];
|
||||
find_result = find(table, entry->Key);
|
||||
|
||||
if (find_result.PrevIndex < 0)
|
||||
table.Hashes[find_result.HashIndex] = idx;
|
||||
else
|
||||
table.Entries[find_result.PrevIndex].Next = idx;
|
||||
}
|
||||
}
|
||||
|
||||
template<typename Type> inline
|
||||
void remove(HashTable<Type>& table, u64 key) {
|
||||
HashTableFindResult find_result = find(table, key);
|
||||
|
||||
if (find_result.EntryIndex >= 0) {
|
||||
table.Entries.remove_at(find_result.EntryIndex);
|
||||
rehash_fast(table);
|
||||
}
|
||||
}
|
||||
|
||||
template<typename Type> inline
|
||||
void remove_entry(HashTable<Type>& table, ssize idx) {
|
||||
table.Entries.remove_at(idx);
|
||||
}
|
||||
|
||||
template<typename Type> inline
|
||||
void set(HashTable<Type>& table, u64 key, Type value)
|
||||
{
|
||||
ssize idx;
|
||||
HashTableFindResult find_result;
|
||||
|
||||
if (full(table))
|
||||
grow(table);
|
||||
|
||||
find_result = find(table, key);
|
||||
if (find_result.EntryIndex >= 0) {
|
||||
idx = find_result.EntryIndex;
|
||||
}
|
||||
else
|
||||
{
|
||||
idx = add_entry(table, key);
|
||||
|
||||
if (find_result.PrevIndex >= 0) {
|
||||
table.Entries[find_result.PrevIndex].Next = idx;
|
||||
}
|
||||
else {
|
||||
table.Hashes[find_result.HashIndex] = idx;
|
||||
}
|
||||
}
|
||||
|
||||
table.Entries[idx].Value = value;
|
||||
|
||||
if (full(table))
|
||||
grow(table);
|
||||
}
|
||||
|
||||
template<typename Type> inline
|
||||
ssize slot(HashTable<Type>& table, u64 key) {
|
||||
for (ssize idx = 0; idx < ssize(table.Hashes.num()); ++idx)
|
||||
if (table.Hashes[idx] == key)
|
||||
return idx;
|
||||
|
||||
return -1;
|
||||
}
|
||||
|
||||
template<typename Type> inline
|
||||
ssize add_entry(HashTable<Type>& table, u64 key) {
|
||||
ssize idx;
|
||||
HashTableEntry<Type> entry = { key, -1 };
|
||||
|
||||
idx = table.Entries.num();
|
||||
table.Entries.append(entry);
|
||||
return idx;
|
||||
}
|
||||
|
||||
template<typename Type> inline
|
||||
HashTableFindResult find(HashTable<Type>& table, u64 key)
|
||||
{
|
||||
HashTableFindResult result = { -1, -1, -1 };
|
||||
|
||||
if (table.Hashes.num() > 0)
|
||||
{
|
||||
result.HashIndex = key % table.Hashes.num();
|
||||
result.EntryIndex = table.Hashes[result.HashIndex];
|
||||
|
||||
while (result.EntryIndex >= 0)
|
||||
{
|
||||
if (table.Entries[result.EntryIndex].Key == key)
|
||||
break;
|
||||
|
||||
result.PrevIndex = result.EntryIndex;
|
||||
result.EntryIndex = table.Entries[result.EntryIndex].Next;
|
||||
}
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
template<typename Type> inline
|
||||
bool full(HashTable<Type>& table) {
|
||||
usize critical_load = usize(HashTable<Type>::CriticalLoadScale * f32(table.Hashes.num()));
|
||||
b32 result = table.Entries.num() > critical_load;
|
||||
return result;
|
||||
}
|
||||
#pragma endregion HashTable
|
||||
|
||||
#pragma endregion Containers
|
||||
|
||||
Loading…
Reference in New Issue
Block a user