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- /**
- * @file kernel/pdevs/Simulator.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 PDEVS_SIMULATOR
- #define PDEVS_SIMULATOR
- #include <artis-star/common/Coordinator.hpp>
- #include <artis-star/common/Parameters.hpp>
- #include <artis-star/common/Simulator.hpp>
- #include <artis-star/common/utils/String.hpp>
- #include <artis-star/common/utils/Trace.hpp>
- #include <cassert>
- namespace artis {
- namespace pdevs {
- template<class Time, class Dynamics, class Parameters>
- class Simulator;
- template<class Time, class Dynamics,
- class Parameters = common::NoParameters>
- class Context {
- typedef pdevs::Simulator<Time, Dynamics, Parameters> Simulator;
- public:
- Context(const Parameters& parameters, Simulator* simulator)
- :
- _parameters(parameters), _simulator(simulator) { }
- virtual ~Context() { }
- const Parameters& parameters() const { return _parameters; }
- Simulator* simulator() const { return _simulator; }
- private:
- const Parameters& _parameters;
- Simulator* _simulator;
- };
- template<class Time, class Dynamics,
- class Parameters = common::NoParameters>
- class Simulator : public common::Simulator<Time> {
- typedef Simulator<Time, Dynamics, Parameters> type;
- public :
- Simulator(const std::string& name, const Parameters& parameters)
- :
- common::Model<Time>(name),
- common::Simulator<Time>(name),
- _dynamics(name, Context<Time, Dynamics, Parameters>(parameters, this)) { }
- ~Simulator() { }
- const Dynamics& dynamics() const { return _dynamics; }
- virtual void restore(const common::context::State<Time>& state)
- {
- common::Simulator<Time>::restore(state);
- _dynamics.restore(state);
- }
- virtual void save(common::context::State<Time>& state) const
- {
- common::Simulator<Time>::save(state);
- _dynamics.save(state);
- }
- virtual std::string to_string(int level) const
- {
- std::ostringstream ss;
- ss << common::String::make_spaces(level * 2) << "p-devs simulator \""
- << type::get_name() << "\"" << std::endl;
- return ss.str();
- }
- virtual void finish(const typename Time::type& t)
- {
- #ifndef WITH_TRACE
- (void) t;
- #else
- common::Trace<Time>::trace()
- << common::TraceElement<Time>(type::get_name(), t,
- common::FormalismType::PDEVS,
- common::FunctionType::FINISH,
- common::LevelType::FORMALISM);
- common::Trace<Time>::trace().flush();
- #endif
- }
- typename Time::type start(const typename Time::type& t)
- {
- // When i-message(t)
- // tl = t - e
- // tn = tl + ta(s)
- // End
- #ifdef WITH_TRACE
- common::Trace<Time>::trace()
- << common::TraceElement<Time>(type::get_name(), t,
- common::FormalismType::PDEVS,
- common::FunctionType::I_MESSAGE,
- common::LevelType::FORMALISM)
- << ": BEFORE => " << "tl = " << type::_tl << " ; tn = "
- << type::_tn;
- common::Trace<Time>::trace().flush();
- #endif
- _dynamics.start(t);
- type::_tl = t;
- typename Time::type duration = _dynamics.ta(t);
- assert(duration >= 0);
- type::_tn = type::_tl + duration;
- #ifdef WITH_TRACE
- common::Trace<Time>::trace()
- << common::TraceElement<Time>(type::get_name(), t,
- common::FormalismType::PDEVS,
- common::FunctionType::I_MESSAGE,
- common::LevelType::FORMALISM)
- << ": AFTER => " << "tl = " << type::_tl << " ; tn = "
- << type::_tn;
- common::Trace<Time>::trace().flush();
- #endif
- return type::_tn;
- }
- common::Value observe(const typename Time::type& t, unsigned int index) const
- {
- return _dynamics.observe(t, index);
- }
- virtual std::string observable_name(unsigned int observable_index) const
- {
- return _dynamics.observable_name(observable_index);
- }
- void output(const typename Time::type& t)
- {
- // When *-message(t)
- // if (t = tn) then
- // y = lambda(s)
- // send y-message(y,t) to parent
- // End
- #ifdef WITH_TRACE
- common::Trace<Time>::trace()
- << common::TraceElement<Time>(type::get_name(), t,
- common::FormalismType::PDEVS,
- common::FunctionType::OUTPUT,
- common::LevelType::FORMALISM)
- << ": BEFORE";
- common::Trace<Time>::trace().flush();
- #endif
- if (t == type::_tn) {
- common::Bag<Time> bag = _dynamics.lambda(t);
- if (not bag.empty()) {
- for (auto& event : bag) {
- event.set_model(this);
- }
- dynamic_cast < common::Coordinator<Time>* >(
- type::get_parent())->dispatch_events(bag, t);
- }
- }
- #ifdef WITH_TRACE
- common::Trace<Time>::trace()
- << common::TraceElement<Time>(type::get_name(), t,
- common::FormalismType::PDEVS,
- common::FunctionType::OUTPUT,
- common::LevelType::FORMALISM)
- << ": AFTER";
- common::Trace<Time>::trace().flush();
- #endif
- }
- void post_event(const typename Time::type& t, const common::ExternalEvent<Time>& event)
- {
- #ifndef WITH_TRACE
- (void) t;
- #else
- common::Trace<Time>::trace()
- << common::TraceElement<Time>(type::get_name(), t,
- common::FormalismType::PDEVS,
- common::FunctionType::POST_EVENT,
- common::LevelType::FORMALISM)
- << ": BEFORE => " << event.to_string();
- common::Trace<Time>::trace().flush();
- #endif
- type::add_event(event);
- #ifdef WITH_TRACE
- common::Trace<Time>::trace()
- << common::TraceElement<Time>(type::get_name(), t,
- common::FormalismType::PDEVS,
- common::FunctionType::POST_EVENT,
- common::LevelType::FORMALISM)
- << ": AFTER => " << event.to_string();
- common::Trace<Time>::trace().flush();
- #endif
- }
- typename Time::type transition(const typename Time::type& t)
- {
- // When x-message(t)
- // if (x is empty and t = tn) then
- // s = delta_int(s)
- // else if (x isn't empty and t = tn)
- // s = delta_conf(s,x)
- // else if (x isn't empty and t < tn)
- // e = t - tl
- // s = delta_ext(s,e,x)
- // tn = t + ta(s)
- // tl = t
- // End
- #ifdef WITH_TRACE
- common::Trace<Time>::trace()
- << common::TraceElement<Time>(type::get_name(), t,
- common::FormalismType::PDEVS,
- common::FunctionType::S_MESSAGE,
- common::LevelType::FORMALISM)
- << ": BEFORE => " << "tl = " << type::_tl << " ; tn = "
- << type::_tn;
- common::Trace<Time>::trace().flush();
- #endif
- assert(type::_tl <= t and t <= type::_tn);
- if (t == type::_tn) {
- if (type::event_number() == 0) {
- _dynamics.dint(t);
- } else {
- _dynamics.dconf(t, t - type::_tl, type::get_bag());
- }
- } else {
- _dynamics.dext(t, t - type::_tl, type::get_bag());
- }
- type::_tl = t;
- typename Time::type duration = _dynamics.ta(t);
- assert(duration >= 0);
- type::_tn = type::_tl + duration;
- type::clear_bag();
- #ifdef WITH_TRACE
- common::Trace<Time>::trace()
- << common::TraceElement<Time>(type::get_name(), t,
- common::FormalismType::PDEVS,
- common::FunctionType::S_MESSAGE,
- common::LevelType::FORMALISM)
- << ": AFTER => " << "tl = " << type::_tl << " ; tn = " << type::_tn;
- common::Trace<Time>::trace().flush();
- #endif
- return type::_tn;
- }
- private :
- Dynamics _dynamics;
- };
- }
- } // namespace artis pdevs
- #endif
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