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92 lines
2.6 KiB
92 lines
2.6 KiB
// 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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using PointerType = std::shared_ptr<ObjT>;
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static PointerType FromObj(ObjT d) {
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return std::make_shared<ObjT>(std::move(d));
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}
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static PointerType DefaultConstructed() { return std::make_shared<ObjT>(); }
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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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public:
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using HeldType = typename PointerPolicy::PointerType;
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using PoolHolderType = std::vector<HeldType>;
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static HeldType NonPtrAdd(ObjT d) {
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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 HeldType PtrAdd(HeldType d) {
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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 HeldType Make(Ts&&... ts) {
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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 void PurgeCache() {
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std::remove_if(held_data_.begin(), held_data_.end(),
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[](HeldType const& h) { return h.use_count() == 1; });
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}
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private:
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static PoolHolderType held_data_;
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};
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template <typename ObjT, class Policy>
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typename Pool<ObjT, Policy>::PoolHolderType Pool<ObjT, Policy>::held_data_;
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} // namespace detail
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} // namespace bertini
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#endif
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