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- // 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 <iostream>
- // back-end
- #include <boost/msm/back/state_machine.hpp>
- //front-end
- #include <boost/msm/front/state_machine_def.hpp>
- #ifndef BOOST_MSM_NONSTANDALONE_TEST
- #define BOOST_TEST_MODULE MyTest
- #endif
- #include <boost/test/unit_test.hpp>
- namespace msm = boost::msm;
- namespace mpl = boost::mpl;
- namespace
- {
- // events
- struct event1 {};
- struct event2 {};
- struct event3 {};
- struct event4 {};
- struct event5 {};
- struct event6
- {
- event6(){}
- template <class Event>
- event6(Event const&){}
- };
- // front-end: define the FSM structure
- struct Fsm_ : public msm::front::state_machine_def<Fsm_>
- {
- // The list of FSM states
- struct State1 : public msm::front::state<>
- {
- template <class Event,class FSM>
- void on_entry(Event const&,FSM& ) {++entry_counter;}
- template <class Event,class FSM>
- void on_exit(Event const&,FSM& ) {++exit_counter;}
- int entry_counter;
- int exit_counter;
- };
- struct State2 : public msm::front::state<>
- {
- template <class Event,class FSM>
- void on_entry(Event const&,FSM& ) {++entry_counter;}
- template <class Event,class FSM>
- void on_exit(Event const&,FSM& ) {++exit_counter;}
- int entry_counter;
- int exit_counter;
- };
- struct SubFsm2_ : public msm::front::state_machine_def<SubFsm2_>
- {
- typedef msm::back::state_machine<SubFsm2_> SubFsm2;
- unsigned int entry_action_counter;
- template <class Event,class FSM>
- void on_entry(Event const&,FSM& ) {++entry_counter;}
- template <class Event,class FSM>
- void on_exit(Event const&,FSM& ) {++exit_counter;}
- int entry_counter;
- int exit_counter;
- struct SubState1 : public msm::front::state<>
- {
- template <class Event,class FSM>
- void on_entry(Event const&,FSM& ) {++entry_counter;}
- template <class Event,class FSM>
- void on_exit(Event const&,FSM& ) {++exit_counter;}
- int entry_counter;
- int exit_counter;
- };
- struct SubState1b : public msm::front::state<>
- {
- template <class Event,class FSM>
- void on_entry(Event const&,FSM& ) {++entry_counter;}
- template <class Event,class FSM>
- void on_exit(Event const&,FSM& ) {++exit_counter;}
- int entry_counter;
- int exit_counter;
- };
- struct SubState2 : public msm::front::state<> , public msm::front::explicit_entry<0>
- {
- template <class Event,class FSM>
- void on_entry(Event const&,FSM& ) {++entry_counter;}
- template <class Event,class FSM>
- void on_exit(Event const&,FSM& ) {++exit_counter;}
- int entry_counter;
- int exit_counter;
- };
- struct SubState2b : public msm::front::state<> , public msm::front::explicit_entry<1>
- {
- template <class Event,class FSM>
- void on_entry(Event const&,FSM& ) {++entry_counter;}
- template <class Event,class FSM>
- void on_exit(Event const&,FSM& ) {++exit_counter;}
- int entry_counter;
- int exit_counter;
- };
- // test with a pseudo entry
- struct PseudoEntry1 : public msm::front::entry_pseudo_state<0>
- {
- template <class Event,class FSM>
- void on_entry(Event const&,FSM& ) {++entry_counter;}
- template <class Event,class FSM>
- void on_exit(Event const&,FSM& ) {++exit_counter;}
- int entry_counter;
- int exit_counter;
- };
- struct SubState3 : public msm::front::state<>
- {
- template <class Event,class FSM>
- void on_entry(Event const&,FSM& ) {++entry_counter;}
- template <class Event,class FSM>
- void on_exit(Event const&,FSM& ) {++exit_counter;}
- int entry_counter;
- int exit_counter;
- };
- struct PseudoExit1 : public msm::front::exit_pseudo_state<event6>
- {
- template <class Event,class FSM>
- void on_entry(Event const&,FSM& ) {++entry_counter;}
- template <class Event,class FSM>
- void on_exit(Event const&,FSM& ) {++exit_counter;}
- int entry_counter;
- int exit_counter;
- };
- // action methods
- void entry_action(event4 const&)
- {
- ++entry_action_counter;
- }
- // the initial state. Must be defined
- typedef mpl::vector<SubState1,SubState1b> initial_state;
- typedef mpl::vector<SubState2b> explicit_creation;
- // Transition table for SubFsm2
- struct transition_table : mpl::vector<
- // Start Event Next Action Guard
- // +--------------+-------------+------------+------------------------+----------------------+
- a_row < PseudoEntry1 , event4 , SubState3 ,&SubFsm2_::entry_action >,
- _row < SubState2 , event6 , SubState1 >,
- _row < SubState3 , event5 , PseudoExit1 >
- // +--------------+-------------+------------+------------------------+----------------------+
- > {};
- // Replaces the default no-transition response.
- template <class FSM,class Event>
- void no_transition(Event const& , FSM&,int)
- {
- BOOST_FAIL("no_transition called!");
- }
- };
- typedef msm::back::state_machine<SubFsm2_> SubFsm2;
- // the initial state of the player SM. Must be defined
- typedef State1 initial_state;
- // transition actions
- // guard conditions
- // Transition table for Fsm
- struct transition_table : mpl::vector<
- // Start Event Next Action Guard
- // +---------------------+--------+------------------------------------+-------+--------+
- _row < State1 , event1 , SubFsm2 >,
- _row < State1 , event2 , SubFsm2::direct<SubFsm2_::SubState2> >,
- _row < State1 , event3 , mpl::vector<SubFsm2::direct<SubFsm2_::SubState2>,
- SubFsm2::direct<SubFsm2_::SubState2b> > >,
- _row < State1 , event4 , SubFsm2::entry_pt
- <SubFsm2_::PseudoEntry1> >,
- // +---------------------+--------+------------------------------------+-------+--------+
- _row < SubFsm2 , event1 , State1 >,
- _row < SubFsm2::exit_pt
- <SubFsm2_::PseudoExit1>, event6 , State2 >
- // +---------------------+--------+------------------------------------+-------+--------+
- > {};
- // Replaces the default no-transition response.
- template <class FSM,class Event>
- void no_transition(Event const& , FSM&,int )
- {
- BOOST_FAIL("no_transition called!");
- }
- // init counters
- template <class Event,class FSM>
- void on_entry(Event const&,FSM& fsm)
- {
- fsm.template get_state<Fsm_::State1&>().entry_counter=0;
- fsm.template get_state<Fsm_::State1&>().exit_counter=0;
- fsm.template get_state<Fsm_::State2&>().entry_counter=0;
- fsm.template get_state<Fsm_::State2&>().exit_counter=0;
- fsm.template get_state<Fsm_::SubFsm2&>().entry_counter=0;
- fsm.template get_state<Fsm_::SubFsm2&>().exit_counter=0;
- fsm.template get_state<Fsm_::SubFsm2&>().entry_action_counter=0;
- fsm.template get_state<Fsm_::SubFsm2&>().template get_state<Fsm_::SubFsm2::SubState1&>().entry_counter=0;
- fsm.template get_state<Fsm_::SubFsm2&>().template get_state<Fsm_::SubFsm2::SubState1&>().exit_counter=0;
- fsm.template get_state<Fsm_::SubFsm2&>().template get_state<Fsm_::SubFsm2::SubState1b&>().entry_counter=0;
- fsm.template get_state<Fsm_::SubFsm2&>().template get_state<Fsm_::SubFsm2::SubState1b&>().exit_counter=0;
- fsm.template get_state<Fsm_::SubFsm2&>().template get_state<Fsm_::SubFsm2::SubState2&>().entry_counter=0;
- fsm.template get_state<Fsm_::SubFsm2&>().template get_state<Fsm_::SubFsm2::SubState2&>().exit_counter=0;
- fsm.template get_state<Fsm_::SubFsm2&>().template get_state<Fsm_::SubFsm2::SubState2b&>().entry_counter=0;
- fsm.template get_state<Fsm_::SubFsm2&>().template get_state<Fsm_::SubFsm2::SubState2b&>().exit_counter=0;
- fsm.template get_state<Fsm_::SubFsm2&>().template get_state<Fsm_::SubFsm2::SubState3&>().entry_counter=0;
- fsm.template get_state<Fsm_::SubFsm2&>().template get_state<Fsm_::SubFsm2::SubState3&>().exit_counter=0;
- fsm.template get_state<Fsm_::SubFsm2&>().template get_state<Fsm_::SubFsm2::PseudoEntry1&>().entry_counter=0;
- fsm.template get_state<Fsm_::SubFsm2&>().template get_state<Fsm_::SubFsm2::PseudoEntry1&>().exit_counter=0;
- fsm.template get_state<Fsm_::SubFsm2&>().template get_state<Fsm_::SubFsm2::exit_pt<SubFsm2_::PseudoExit1>&>().entry_counter=0;
- fsm.template get_state<Fsm_::SubFsm2&>().template get_state<Fsm_::SubFsm2::exit_pt<SubFsm2_::PseudoExit1>&>().exit_counter=0;
- }
- };
- typedef msm::back::state_machine<Fsm_> Fsm;
- // static char const* const state_names[] = { "State1", "SubFsm2","State2" };
- BOOST_AUTO_TEST_CASE( my_test )
- {
- Fsm p;
- p.start();
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::State1&>().entry_counter == 1,"State1 entry not called correctly");
- p.process_event(event1());
- p.process_event(event1());
- BOOST_CHECK_MESSAGE(p.current_state()[0] == 0,"State1 should be active");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::State1&>().exit_counter == 1,"State1 exit not called correctly");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::State1&>().entry_counter == 2,"State1 entry not called correctly");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::SubFsm2&>().exit_counter == 1,"SubFsm2 exit not called correctly");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::SubFsm2&>().entry_counter == 1,"SubFsm2 entry not called correctly");
- p.process_event(event2());
- p.process_event(event6());
- p.process_event(event1());
- BOOST_CHECK_MESSAGE(p.current_state()[0] == 0,"State1 should be active");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::State1&>().exit_counter == 2,"State1 exit not called correctly");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::State1&>().entry_counter == 3,"State1 entry not called correctly");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::SubFsm2&>().exit_counter == 2,"SubFsm2 exit not called correctly");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::SubFsm2&>().entry_counter == 2,"SubFsm2 entry not called correctly");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::SubFsm2&>().get_state<Fsm_::SubFsm2_::SubState2&>().entry_counter == 1,
- "SubFsm2::SubState2 entry not called correctly");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::SubFsm2&>().get_state<Fsm_::SubFsm2_::SubState2&>().exit_counter == 1,
- "SubFsm2::SubState2 exit not called correctly");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::SubFsm2&>().get_state<Fsm_::SubFsm2_::SubState1&>().entry_counter == 2,
- "SubFsm2::SubState1 entry not called correctly");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::SubFsm2&>().get_state<Fsm_::SubFsm2_::SubState1&>().exit_counter == 2,
- "SubFsm2::SubState1 exit not called correctly");
- p.process_event(event3());
- p.process_event(event1());
- BOOST_CHECK_MESSAGE(p.current_state()[0] == 0,"State1 should be active");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::State1&>().exit_counter == 3,"State1 exit not called correctly");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::State1&>().entry_counter == 4,"State1 entry not called correctly");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::SubFsm2&>().exit_counter == 3,"SubFsm2 exit not called correctly");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::SubFsm2&>().entry_counter == 3,"SubFsm2 entry not called correctly");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::SubFsm2&>().get_state<Fsm_::SubFsm2_::SubState2&>().entry_counter == 2,
- "SubFsm2::SubState2 entry not called correctly");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::SubFsm2&>().get_state<Fsm_::SubFsm2_::SubState2&>().exit_counter == 2,
- "SubFsm2::SubState2 exit not called correctly");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::SubFsm2&>().get_state<Fsm_::SubFsm2_::SubState2b&>().entry_counter == 1,
- "SubFsm2::SubState2b entry not called correctly");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::SubFsm2&>().get_state<Fsm_::SubFsm2_::SubState2b&>().exit_counter == 1,
- "SubFsm2::SubState2b exit not called correctly");
- p.process_event(event4());
- p.process_event(event5());
- BOOST_CHECK_MESSAGE(p.current_state()[0] == 2,"State2 should be active");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::State1&>().exit_counter == 4,"State1 exit not called correctly");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::State2&>().entry_counter == 1,"State2 entry not called correctly");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::SubFsm2&>().exit_counter == 4,"SubFsm2 exit not called correctly");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::SubFsm2&>().entry_counter == 4,"SubFsm2 entry not called correctly");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::SubFsm2&>().get_state<Fsm_::SubFsm2_::PseudoEntry1&>().entry_counter == 1,
- "SubFsm2::PseudoEntry1 entry not called correctly");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::SubFsm2&>().get_state<Fsm_::SubFsm2_::PseudoEntry1&>().exit_counter == 1,
- "SubFsm2::PseudoEntry1 exit not called correctly");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::SubFsm2&>().get_state<Fsm_::SubFsm2_::SubState3&>().entry_counter == 1,
- "SubFsm2::SubState3 entry not called correctly");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::SubFsm2&>().get_state<Fsm_::SubFsm2_::SubState3&>().exit_counter == 1,
- "SubFsm2::SubState3 exit not called correctly");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::SubFsm2&>().get_state<Fsm_::SubFsm2::exit_pt<Fsm_::SubFsm2_::PseudoExit1>&>().entry_counter == 1,
- "SubFsm2::PseudoExit1 entry not called correctly");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::SubFsm2&>().get_state<Fsm_::SubFsm2::exit_pt<Fsm_::SubFsm2_::PseudoExit1>&>().exit_counter == 1,
- "SubFsm2::PseudoExit1 exit not called correctly");
- BOOST_CHECK_MESSAGE(p.get_state<Fsm_::SubFsm2&>().entry_action_counter == 1,"Action not called correctly");
- }
- }
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