| // Copyright 2010 Christophe Henry |
| // henry UNDERSCORE christophe AT hotmail DOT com |
| // This is an extended version of the state machine available in the boost::mpl library |
| // Distributed under the same license as the original. |
| // Copyright for the original version: |
| // Copyright 2005 David Abrahams and Aleksey Gurtovoy. Distributed |
| // under the Boost Software License, Version 1.0. (See accompanying |
| // file LICENSE_1_0.txt or copy at |
| // http://www.boost.org/LICENSE_1_0.txt) |
| |
| #include <vector> |
| #include <iostream> |
| // back-end |
| #include <boost/msm/back/state_machine.hpp> |
| //front-end |
| #include <boost/msm/front/state_machine_def.hpp> |
| // functors |
| #include <boost/msm/front/functor_row.hpp> |
| #include <boost/msm/front/euml/common.hpp> |
| |
| #include "Empty.hpp" |
| #include "Open.hpp" |
| |
| using namespace std; |
| namespace msm = boost::msm; |
| namespace mpl = boost::mpl; |
| using namespace msm::front; |
| |
| |
| // front-end: define the FSM structure |
| struct player_ : public msm::front::state_machine_def<player_> |
| { |
| // the initial state of the player SM. Must be defined |
| typedef Empty initial_state; |
| typedef mpl::vector<Empty,Open> explicit_creation; |
| |
| typedef player_ p; // makes transition table cleaner |
| |
| // Replaces the default no-transition response. |
| template <class FSM,class Event> |
| void no_transition(Event const& e, FSM&,int state) |
| { |
| std::cout << "no transition from state " << state |
| << " on event " << typeid(e).name() << std::endl; |
| } |
| }; |
| // Pick a back-end |
| typedef msm::back::state_machine<player_> player; |
| |
| // |
| // Testing utilities. |
| // |
| static char const* const state_names[] = { "Empty", "Open" }; |
| void pstate(player const& p) |
| { |
| std::cout << " -> " << state_names[p.current_state()[0]] << std::endl; |
| } |
| |
| void test() |
| { |
| player p; |
| // needed to start the highest-level SM. This will call on_entry and mark the start of the SM |
| p.start(); |
| // go to Open, call on_exit on Empty, then action, then on_entry on Open |
| p.process_event(open_close()); pstate(p); |
| p.process_event(open_close()); pstate(p); |
| } |
| |
| int main() |
| { |
| test(); |
| return 0; |
| } |
| |