119 lines
2.6 KiB
C++
119 lines
2.6 KiB
C++
//This file is part of Bertini 2.
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//
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//pool.hpp is free software: you can redistribute it and/or modify
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//it under the terms of the GNU General Public License as published by
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//the Free Software Foundation, either version 3 of the License, or
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//(at your option) any later version.
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//
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//pool.hpp is distributed in the hope that it will be useful,
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//but WITHOUT ANY WARRANTY; without even the implied warranty of
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//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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//GNU General Public License for more details.
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//
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//You should have received a copy of the GNU General Public License
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//along with pool.hpp. If not, see <http://www.gnu.org/licenses/>.
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//
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// Copyright(C) 2015 - 2021 by Bertini2 Development Team
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//
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// See <http://www.gnu.org/licenses/> for a copy of the license,
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// as well as COPYING. Bertini2 is provided with permitted
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// additional terms in the b2/licenses/ directory.
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// individual authors of this file include:
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// silviana amethyst, university of wisconsin-eau claire
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//
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/**
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\file pool.hpp
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*/
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#ifndef BERTINI_GENERIC_POOL_HPP
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#define BERTINI_GENERIC_POOL_HPP
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namespace bertini {
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namespace detail {
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template<typename ObjT>
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struct SharedPointerPolicy
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{
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using PointerType = std::shared_ptr<ObjT>;
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static
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PointerType FromObj(ObjT d)
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{
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return std::make_shared<ObjT>(std::move(d));
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}
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static
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PointerType DefaultConstructed()
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{
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return std::make_shared<ObjT>();
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}
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};
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template<typename ObjT>
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using DefaultPointerPolicy = SharedPointerPolicy<ObjT>;
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template<typename ObjT, class PointerPolicy = DefaultPointerPolicy<ObjT> >
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class Pool
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{
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public:
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using HeldType = typename PointerPolicy::PointerType;
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using PoolHolderType = std::vector< HeldType >;
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static
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HeldType NonPtrAdd(ObjT d)
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{
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// held_data_.push_back(PointerPolicy::FromObj(d));
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held_data_.push_back(PointerPolicy::FromObj(d));
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return held_data_.back();
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}
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static
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HeldType PtrAdd(HeldType d)
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{
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held_data_.push_back(d);
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return held_data_.back();
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}
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template<typename ... Ts>
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static
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HeldType Make(Ts&& ...ts )
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{
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ObjT* obj = new ObjT(ts...);
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// held_data_.push_back(PointerPolicy::DefaultConstructed());
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auto thing = std::shared_ptr<ObjT>(new ObjT(ts...));
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held_data_.push_back(thing);
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return held_data_.back();
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}
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static
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void PurgeCache()
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{
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std::remove_if(held_data_.begin(), held_data_.end(), [](HeldType const& h){return h.use_count()==1;});
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}
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private:
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static
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PoolHolderType held_data_;
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};
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template<typename ObjT, class Policy> typename Pool<ObjT,Policy>::PoolHolderType Pool<ObjT,Policy>::held_data_;
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} // re: detail
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} // re: bertini
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#endif
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