artis-star/src/artis-star/common/scheduler/VectorScheduler.hpp

/**
 * @file VectorScheduler.hpp
 * @author The ARTIS Development Team
 * See the AUTHORS or Authors.txt file
 */

/*
 * ARTIS - the multimodeling and simulation environment
 * This file is a part of the ARTIS environment
 *
 * Copyright (C) 2013-2019 ULCO http://www.univ-littoral.fr
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef COMMON_SCHEDULER_VECTOR_SCHEDULER_HPP
#define COMMON_SCHEDULER_VECTOR_SCHEDULER_HPP 1

#include <artis-star/common/InternalEvent.hpp>
#include <artis-star/common/scheduler/SchedulerHandle.hpp>

#include <algorithm>
#include <sstream>

namespace artis {
    namespace common {
        namespace scheduler {

            template<class Time>
            class VectorScheduler :
                    protected std::vector<InternalEvent<Time, NoSchedulerHandle> > {
            public:
                VectorScheduler() { }

                virtual ~VectorScheduler() { }

                Model<Time, NoSchedulerHandle>* get_current_model()
                {
                    return VectorScheduler<Time>::front().get_model();
                }

                Models<Time, NoSchedulerHandle> get_current_models(
                        typename Time::type time) const
                {
                    Models<Time, NoSchedulerHandle> models;

                    for (typename VectorScheduler<Time>::const_iterator it =
                            VectorScheduler<Time>::begin();
                         it != VectorScheduler<Time>::end() and it->get_time() == time;
                         ++it) {
                        models.push_back(it->get_model());
                    }
                    return models;
                }

                typename Time::type get_current_time() const { return VectorScheduler<Time>::front().get_time(); }

                void init(typename Time::type time,
                        Model<Time, NoSchedulerHandle>* model)
                {
                    VectorScheduler<Time>::push_back(
                            InternalEvent<Time, NoSchedulerHandle>(time, model));
                    std::sort(VectorScheduler<Time>::begin(),
                            VectorScheduler<Time>::end());
                }

                void put(typename Time::type time, Model<Time, NoSchedulerHandle>* model)
                {
                    remove(model);
                    VectorScheduler<Time>::push_back(
                            InternalEvent<Time, NoSchedulerHandle>(time, model));
                    std::sort(VectorScheduler<Time>::begin(),
                            VectorScheduler<Time>::end());
                }

                std::string to_string() const
                {
                    std::stringstream ss;

                    ss << "Scheduler = { ";
                    for (typename VectorScheduler<Time>::const_iterator it =
                            VectorScheduler<Time>::begin();
                         it != VectorScheduler<Time>::end(); ++it) {
                        ss << "(" << it->get_time() << " -> " << it->get_model()->get_name()
                           << ") ";
                    }
                    ss << "}";
                    return ss.str();
                }

            private:
                void remove(Model<Time, NoSchedulerHandle>* model)
                {
                    typename VectorScheduler<Time>::iterator jt =
                            VectorScheduler<Time>::begin();

                    while (jt != VectorScheduler<Time>::end()) {
                        if (jt->get_model() == model) {
                            jt = VectorScheduler<Time>::erase(jt);
                        } else {
                            ++jt;
                        }
                    }
                }
            };

        }
    }
} // namespace artis common scheduler

#endif