Allocator Aware Array and List

This commit is contained in:
Dynamitos
2021-10-23 00:22:35 +02:00
parent 451572f254
commit 9c48c48f8c
16 changed files with 1390 additions and 1230 deletions
File diff suppressed because it is too large Load Diff
+357 -321
View File
@@ -1,337 +1,373 @@
#pragma once
#include "MinimalEngine.h"
#include <xmemory>
namespace Seele
{
template <typename T>
template <typename T, typename Allocator = std::pmr::polymorphic_allocator<T>>
class List
{
private:
struct Node
{
Node *prev;
Node *next;
T data;
};
struct Node
{
Node *prev;
Node *next;
T data;
};
using NodeAllocator = std::allocator_traits<Allocator>::template rebind_alloc<Node>;
public:
List()
{
root = nullptr;
tail = nullptr;
beginIt = Iterator(root);
endIt = Iterator(tail);
_size = 0;
}
List(const List& other)
{
//TODO: improve
for(const auto& it : other)
{
add(it);
}
}
List(List&& other)
: root(std::move(other.root))
, tail(std::move(other.tail))
, beginIt(std::move(other.beginIt))
, endIt(std::move(other.endIt))
, _size(std::move(other._size))
{
other._size = 0;
}
~List()
{
clear();
}
List& operator=(const List& other)
{
if(this != &other)
{
if(root != nullptr)
{
delete root;
}
if(tail != nullptr)
{
delete tail;
}
_size = 0;
for(const auto& it : other)
{
add(it);
}
}
return *this;
}
List& operator=(List&& other)
{
if(this != &other)
{
if(root != nullptr)
{
clear();
}
root = other.root;
tail = other.tail;
beginIt = other.beginIt;
endIt = other.endIt;
_size = other._size;
other._size = 0;
}
return *this;
}
template <typename X>
class IteratorBase
{
public:
typedef std::forward_iterator_tag iterator_category;
typedef X value_type;
typedef std::ptrdiff_t difference_type;
typedef X &reference;
typedef X *pointer;
template <typename X>
class IteratorBase
{
public:
using iterator_category = std::forward_iterator_tag;
using value_type = X;
using difference_type = std::ptrdiff_t;
using reference = X&;
using pointer = X*;
IteratorBase(Node *x = nullptr)
: node(x)
{
}
IteratorBase(const IteratorBase &i)
: node(i.node)
{
}
IteratorBase(IteratorBase&& i)
: node(std::move(i.node))
{
}
~IteratorBase()
{
}
IteratorBase& operator=(const IteratorBase& other)
{
if(this != &other)
{
node = other.node;
}
return *this;
}
IteratorBase& operator=(IteratorBase&& other)
{
if(this != &other)
{
node = std::move(other.node);
}
return *this;
}
reference operator*() const
{
return node->data;
}
pointer operator->() const
{
return &node->data;
}
inline bool operator!=(const IteratorBase &other)
{
return node != other.node;
}
inline bool operator==(const IteratorBase &other)
{
return node == other.node;
}
IteratorBase &operator--()
{
node = node->prev;
return *this;
}
IteratorBase operator--(int)
{
IteratorBase tmp(*this);
--*this;
return tmp;
}
IteratorBase &operator++()
{
node = node->next;
return *this;
}
IteratorBase operator++(int)
{
IteratorBase tmp(*this);
++*this;
return tmp;
}
IteratorBase(Node *x = nullptr)
: node(x)
{
}
IteratorBase(const IteratorBase &i)
: node(i.node)
{
}
IteratorBase(IteratorBase&& i)
: node(std::move(i.node))
{
}
~IteratorBase()
{
}
IteratorBase& operator=(const IteratorBase& other)
{
if(this != &other)
{
node = other.node;
}
return *this;
}
IteratorBase& operator=(IteratorBase&& other)
{
if(this != &other)
{
node = std::move(other.node);
}
return *this;
}
reference operator*() const
{
return node->data;
}
pointer operator->() const
{
return &node->data;
}
inline bool operator!=(const IteratorBase &other)
{
return node != other.node;
}
inline bool operator==(const IteratorBase &other)
{
return node == other.node;
}
IteratorBase &operator--()
{
node = node->prev;
return *this;
}
IteratorBase operator--(int)
{
IteratorBase tmp(*this);
--*this;
return tmp;
}
IteratorBase &operator++()
{
node = node->next;
return *this;
}
IteratorBase operator++(int)
{
IteratorBase tmp(*this);
++*this;
return tmp;
}
private:
Node *node;
friend class List<T>;
};
typedef IteratorBase<T> Iterator;
typedef IteratorBase<const T> ConstIterator;
private:
Node *node;
friend class List<T>;
};
using Iterator = IteratorBase<T>;
using ConstIterator = IteratorBase<const T>;
using value_type = T;
using allocator_type = Allocator;
using size_type = std::size_t;
using difference_type = std::ptrdiff_t;
using reference = value_type&;
using const_reference = const value_type&;
using pointer = T*;
using const_pointer = const T*;
T &front()
{
return root->data;
}
T &back()
{
return tail->prev->data;
}
void clear()
{
if (empty())
{
return;
}
for (Node *tmp = root; tmp != tail;)
{
tmp = tmp->next;
delete tmp->prev;
}
delete tail;
tail = nullptr;
root = nullptr;
}
//Insert at the end
Iterator add(const T &value)
{
if (root == nullptr)
{
root = new Node();
tail = root;
}
tail->data = value;
Node *newTail = new Node();
newTail->prev = tail;
newTail->next = nullptr;
tail->next = newTail;
Iterator insertedElement(tail);
tail = newTail;
markIteratorDirty();
_size++;
return insertedElement;
}
Iterator add(T&& value)
{
if (root == nullptr)
{
root = new Node();
tail = root;
}
tail->data = std::move(value);
Node *newTail = new Node();
newTail->prev = tail;
newTail->next = nullptr;
tail->next = newTail;
Iterator insertedElement(tail);
tail = newTail;
markIteratorDirty();
_size++;
return insertedElement;
}
Iterator remove(Iterator pos)
{
_size--;
Node *prev = pos.node->prev;
Node *next = pos.node->next;
if (prev == nullptr)
{
root = next;
}
else
{
prev->next = next;
}
if(next == nullptr)
{
root = prev;
}
else
{
next->prev = prev;
}
delete pos.node;
markIteratorDirty();
return Iterator(next);
}
void popBack()
{
assert(_size > 0);
remove(Iterator(tail->prev));
}
void popFront()
{
assert(_size > 0);
remove(Iterator(root));
}
Iterator insert(Iterator pos, const T &value)
{
_size++;
if (root == nullptr)
{
root = new Node();
root->data = value;
tail = new Node();
root->next = tail;
root->prev = nullptr;
tail->prev = root;
tail->next = nullptr;
markIteratorDirty();
return beginIt;
}
Node *tmp = pos.node->prev;
Node *newNode = new Node();
newNode->data = value;
tmp->next = newNode;
newNode->prev = tmp;
newNode->next = pos.node;
pos.node->prev = newNode;
return Iterator(newNode);
}
Iterator find(const T &value)
{
for (Node *i = root; i != tail; i = i->next)
{
if (!(i->data < value) && !(value < i->data))
{
return Iterator(i);
}
}
return endIt;
}
bool empty()
{
return _size == 0;
}
uint32 size()
{
return _size;
}
Iterator begin()
{
return beginIt;
}
const Iterator begin() const
{
return beginIt;
}
Iterator end()
{
return endIt;
}
const Iterator end() const
{
return endIt;
}
using iterator = Iterator;
using const_iterator = ConstIterator;
using reverse_iterator = std::reverse_iterator<iterator>;
using const_reverse_iterator = std::reverse_iterator<const_iterator>;
List()
: root(nullptr)
, tail(nullptr)
, beginIt(Iterator(root))
, endIt(Iterator(tail))
, _size(0)
, allocator(NodeAllocator())
{
}
List(const List& other)
{
//TODO: improve
for(const auto& it : other)
{
add(it);
}
}
List(List&& other)
: root(std::move(other.root))
, tail(std::move(other.tail))
, beginIt(std::move(other.beginIt))
, endIt(std::move(other.endIt))
, _size(std::move(other._size))
{
other._size = 0;
}
~List()
{
clear();
}
List& operator=(const List& other)
{
if(this != &other)
{
if(root != nullptr)
{
delete root;
}
if(tail != nullptr)
{
delete tail;
}
_size = 0;
for(const auto& it : other)
{
add(it);
}
}
return *this;
}
List& operator=(List&& other)
{
if(this != &other)
{
if(root != nullptr)
{
clear();
}
root = other.root;
tail = other.tail;
beginIt = other.beginIt;
endIt = other.endIt;
_size = other._size;
other._size = 0;
}
return *this;
}
T &front()
{
return root->data;
}
T &back()
{
return tail->prev->data;
}
void clear()
{
if (empty())
{
return;
}
for (Node *tmp = root; tmp != tail;)
{
tmp = tmp->next;
deallocateNode(tmp->prev);
}
deallocateNode(tail);
tail = nullptr;
root = nullptr;
}
//Insert at the end
iterator add(const T &value)
{
if (root == nullptr)
{
root = allocateNode();
tail = root;
}
tail->data = value;
Node *newTail = allocateNode();
newTail->prev = tail;
newTail->next = nullptr;
tail->next = newTail;
iterator insertedElement(tail);
tail = newTail;
markIteratorDirty();
_size++;
return insertedElement;
}
iterator add(T&& value)
{
if (root == nullptr)
{
root = allocateNode();
tail = root;
}
tail->data = std::move(value);
Node *newTail = allocateNode();
newTail->prev = tail;
newTail->next = nullptr;
tail->next = newTail;
Iterator insertedElement(tail);
tail = newTail;
markIteratorDirty();
_size++;
return insertedElement;
}
iterator remove(iterator pos)
{
_size--;
Node *prev = pos.node->prev;
Node *next = pos.node->next;
if (prev == nullptr)
{
root = next;
}
else
{
prev->next = next;
}
if(next == nullptr)
{
root = prev;
}
else
{
next->prev = prev;
}
delete pos.node;
markIteratorDirty();
return Iterator(next);
}
void popBack()
{
assert(_size > 0);
remove(Iterator(tail->prev));
}
void popFront()
{
assert(_size > 0);
remove(Iterator(root));
}
iterator insert(iterator pos, const T &value)
{
_size++;
if (root == nullptr)
{
root = allocateNode();
root->data = value;
tail = allocateNode();
root->next = tail;
root->prev = nullptr;
tail->prev = root;
tail->next = nullptr;
markIteratorDirty();
return beginIt;
}
Node *tmp = pos.node->prev;
Node *newNode = allocateNode();
newNode->data = value;
tmp->next = newNode;
newNode->prev = tmp;
newNode->next = pos.node;
pos.node->prev = newNode;
return Iterator(newNode);
}
iterator find(const T &value)
{
for (Node *i = root; i != tail; i = i->next)
{
if (!(i->data < value) && !(value < i->data))
{
return iterator(i);
}
}
return endIt;
}
bool empty()
{
return _size == 0;
}
size_type size()
{
return _size;
}
iterator begin()
{
return beginIt;
}
const_iterator begin() const
{
return cbeginIt;
}
iterator end()
{
return endIt;
}
const_iterator end() const
{
return cendIt;
}
private:
void markIteratorDirty()
{
beginIt = Iterator(root);
endIt = Iterator(tail);
}
Node *root;
Node *tail;
Iterator beginIt;
Iterator endIt;
uint32 _size;
Node* allocateNode()
{
Node* node = allocator.allocate(1);
std::memset(node, 0, sizeof(Node));
assert(node != nullptr);
return node;
}
void deallocateNode(Node* node)
{
allocator.deallocate(node, 1);
}
void markIteratorDirty()
{
beginIt = Iterator(root);
endIt = Iterator(tail);
cbeginIt = ConstIterator(root);
cendIt = ConstIterator(tail);
}
Node *root;
Node *tail;
Iterator beginIt;
Iterator endIt;
ConstIterator cbeginIt;
ConstIterator cendIt;
uint32 _size;
NodeAllocator allocator;
};
} // namespace Seele
+1 -1
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@@ -171,7 +171,7 @@ public:
using pointer = Pair<K, V>*;
Iterator(Node *x = nullptr)
: node(x), traversal(Init_t::NO_INIT)
: node(x)
{
}
Iterator(Node *x, Array<Node *> &&beginIt)