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/****************************************************************************
* Copyright (C) from 2009 to Present EPAM Systems.
*
* This file is part of Indigo toolkit.
*
* 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 __obj_pool_h__
#define __obj_pool_h__
#include "base_cpp/pool.h"
namespace indigo
{
template <typename T> class ObjPool
{
public:
ObjPool()
{
}
~ObjPool()
{
clear();
}
int add()
{
int idx = _pool.add();
void* addr = &_pool[idx];
new (addr) T();
return idx;
}
template <typename A> int add(A& a)
{
int idx = _pool.add();
void* addr = &_pool[idx];
new (addr) T(a);
return idx;
}
template <typename A, typename B> int add(A& a, B& b)
{
int idx = _pool.add();
void* addr = &_pool[idx];
new (addr) T(a, b);
return idx;
}
void remove(int idx)
{
T& elem = _pool[idx];
elem.~T();
_pool.remove(idx);
}
int size() const
{
return _pool.size();
}
int begin() const
{
return _pool.begin();
}
int next(int i) const
{
return _pool.next(i);
}
int end() const
{
return _pool.end();
}
void clear()
{
for (int i = _pool.begin(); i != _pool.end(); i = _pool.next(i))
_pool[i].~T();
_pool.clear();
}
bool hasElement(int idx) const
{
return _pool.hasElement(idx);
}
const T& operator[](int index) const
{
return _pool[index];
}
T& operator[](int index)
{
return _pool[index];
}
const T& at(int index) const
{
return (*this)[index];
}
T& at(int index)
{
return (*this)[index];
}
protected:
Pool<T> _pool;
private:
ObjPool(const ObjPool<T>&); // no implicit copy
};
} // namespace indigo
#endif
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