112 lines
3.4 KiB
C++
112 lines
3.4 KiB
C++
// =====================================================================================================================
|
|
// Copyright 2024 Medusa Slockbower
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
// =====================================================================================================================
|
|
|
|
#ifndef OBJECT_POOL_H
|
|
#define OBJECT_POOL_H
|
|
|
|
#include "dynarray.h"
|
|
#include "optional.h"
|
|
|
|
namespace open_cpp_utils
|
|
{
|
|
|
|
/**
|
|
* \brief
|
|
* \tparam T
|
|
*/
|
|
template<typename T>
|
|
class object_list
|
|
{
|
|
// Typedefs ============================================================================================================
|
|
|
|
public:
|
|
using value_type = T;
|
|
using pointer = T*;
|
|
using const_pointer = const T*;
|
|
using reference = T&;
|
|
using const_reference = const T&;
|
|
|
|
using uuid_type = uint64_t;
|
|
|
|
private:
|
|
using node = optional<value_type>;
|
|
|
|
|
|
// Functions ===========================================================================================================
|
|
|
|
public:
|
|
|
|
// Constructors & Destructor -------------------------------------------------------------------------------------------
|
|
|
|
object_list() = default;
|
|
object_list(const object_list& other) = default;
|
|
object_list(object_list&& other) = default;
|
|
~object_list() = default;
|
|
|
|
|
|
// Modifiers -----------------------------------------------------------------------------------------------------------
|
|
|
|
size_t size() { return data_.size(); }
|
|
|
|
|
|
// Modifiers -----------------------------------------------------------------------------------------------------------
|
|
|
|
void clear() { data_.clear(); freed_.clear(); }
|
|
|
|
uuid_type insert(const_reference& value);
|
|
void erase(uuid_type id);
|
|
|
|
object_list& operator=(const object_list&) = default;
|
|
object_list& operator=(object_list&&) = default;
|
|
|
|
|
|
// Accessors -----------------------------------------------------------------------------------------------------------
|
|
|
|
reference operator[](uuid_type id) { assert(data_[id]()); return data_[id]; }
|
|
const_reference operator[](uuid_type id) const { assert(data_[id]()); return data_[id]; }
|
|
bool operator()(uuid_type id) const { return data_[id](); }
|
|
|
|
typename dynarray<node>::iterator begin() { return data_.begin(); }
|
|
typename dynarray<node>::iterator end() { return data_.end(); }
|
|
|
|
|
|
// Variables ===========================================================================================================
|
|
|
|
private:
|
|
dynarray<node> data_;
|
|
dynarray<uuid_type> freed_;
|
|
};
|
|
|
|
template<typename T>
|
|
typename object_list<T>::uuid_type object_list<T>::insert(const_reference value)
|
|
{
|
|
if(freed_.empty()) { data_.push_back(value); return data_.size() - 1; }
|
|
|
|
uuid_type id = freed_.back(); freed_.pop_back();
|
|
data_[id] = value;
|
|
return id;
|
|
}
|
|
|
|
template<typename T>
|
|
void object_list<T>::erase(uuid_type id)
|
|
{
|
|
data_[id].reset();
|
|
freed_.push_back(id);
|
|
}
|
|
|
|
} // open_cpp_utils
|
|
|
|
#endif //OBJECT_POOL_H
|