168 lines
8.4 KiB
C++
168 lines
8.4 KiB
C++
// Copyright 2010 Christophe Henry
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// henry UNDERSCORE christophe AT hotmail DOT com
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// This is an extended version of the state machine available in the boost::mpl library
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// Distributed under the same license as the original.
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// Copyright for the original version:
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// Copyright 2005 David Abrahams and Aleksey Gurtovoy. Distributed
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// under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#include <iostream>
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// back-end
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#include <boost/msm/back/state_machine.hpp>
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#include <boost/msm/front/euml/euml.hpp>
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#ifndef BOOST_MSM_NONSTANDALONE_TEST
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#define BOOST_TEST_MODULE MyTest
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#endif
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#include <boost/test/unit_test.hpp>
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namespace msm = boost::msm;
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using namespace boost::msm::front::euml;
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namespace
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{
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// events
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BOOST_MSM_EUML_EVENT(event1)
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// The list of FSM states
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BOOST_MSM_EUML_DECLARE_ATTRIBUTE(unsigned int,entry_counter)
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BOOST_MSM_EUML_DECLARE_ATTRIBUTE(unsigned int,exit_counter)
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BOOST_MSM_EUML_STATE(( ++state_(entry_counter),++state_(exit_counter),attributes_ << entry_counter << exit_counter),State1)
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BOOST_MSM_EUML_STATE(( ++state_(entry_counter),++state_(exit_counter),attributes_ << entry_counter << exit_counter),State2)
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BOOST_MSM_EUML_STATE(( ++state_(entry_counter),++state_(exit_counter),attributes_ << entry_counter << exit_counter),State3)
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BOOST_MSM_EUML_STATE(( ++state_(entry_counter),++state_(exit_counter),attributes_ << entry_counter << exit_counter),State4)
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BOOST_MSM_EUML_DECLARE_ATTRIBUTE(unsigned int,state2_to_state3_counter)
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BOOST_MSM_EUML_DECLARE_ATTRIBUTE(unsigned int,state3_to_state4_counter)
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BOOST_MSM_EUML_DECLARE_ATTRIBUTE(unsigned int,always_true_counter)
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BOOST_MSM_EUML_DECLARE_ATTRIBUTE(unsigned int,always_false_counter)
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// transition actions
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BOOST_MSM_EUML_ACTION(State2ToState3)
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{
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template <class FSM,class EVT,class SourceState,class TargetState>
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void operator()(EVT const& ,FSM& fsm,SourceState& ,TargetState& )
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{
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++fsm.get_attribute(state2_to_state3_counter);
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}
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};
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BOOST_MSM_EUML_ACTION(State3ToState4)
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{
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template <class FSM,class EVT,class SourceState,class TargetState>
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void operator()(EVT const& ,FSM& fsm,SourceState& ,TargetState& )
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{
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++fsm.get_attribute(state3_to_state4_counter);
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}
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};
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// guard conditions
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BOOST_MSM_EUML_ACTION(always_true)
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{
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template <class FSM,class EVT,class SourceState,class TargetState>
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bool operator()(EVT const&,FSM& fsm,SourceState& ,TargetState& )
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{
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++fsm.get_attribute(always_true_counter);
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return true;
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}
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};
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BOOST_MSM_EUML_ACTION(always_false)
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{
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template <class FSM,class EVT,class SourceState,class TargetState>
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bool operator()(EVT const&,FSM& fsm,SourceState& ,TargetState& )
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{
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++fsm.get_attribute(always_false_counter);
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return false;
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}
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};
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BOOST_MSM_EUML_ACTION(No_Transition)
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{
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template <class FSM,class Event>
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void operator()(Event const&,FSM&,int)
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{
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BOOST_FAIL("no_transition called!");
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}
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};
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BOOST_MSM_EUML_TRANSITION_TABLE((
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State2 == State1 ,
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State3 == State2 / State2ToState3,
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State4 == State3 [always_true] / State3ToState4,
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State4 == State3 [always_false],
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State1 == State4 + event1
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// +------------------------------------------------------------------------------+
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),transition_table)
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// create a state machine "on the fly"
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BOOST_MSM_EUML_DECLARE_STATE_MACHINE(( transition_table, //STT
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init_ << State1, // Init State
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no_action, // Entry
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no_action, // Exit
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attributes_ << state2_to_state3_counter << state3_to_state4_counter
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<< always_true_counter << always_false_counter, // Attributes
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configure_ << no_configure_, // configuration
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No_Transition // no_transition handler
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),
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my_machine_) //fsm name
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// Pick a back-end
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typedef msm::back::state_machine<my_machine_> my_machine;
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//static char const* const state_names[] = { "State1", "State2", "State3", "State4" };
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BOOST_AUTO_TEST_CASE( my_test )
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{
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my_machine p;
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// needed to start the highest-level SM. This will call on_entry and mark the start of the SM
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// in this case it will also immediately trigger all anonymous transitions
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p.start();
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BOOST_CHECK_MESSAGE(p.current_state()[0] == 3,"State4 should be active"); //State4
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BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(State1)&>().get_attribute(exit_counter) == 1,
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"State1 exit not called correctly");
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BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(State1)&>().get_attribute(entry_counter) == 1,
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"State1 entry not called correctly");
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BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(State2)&>().get_attribute(exit_counter) == 1,
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"State2 exit not called correctly");
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BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(State2)&>().get_attribute(entry_counter) == 1,
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"State2 entry not called correctly");
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BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(State3)&>().get_attribute(exit_counter) == 1,
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"State3 exit not called correctly");
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BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(State3)&>().get_attribute(entry_counter) == 1,
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"State3 entry not called correctly");
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BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(State4)&>().get_attribute(entry_counter)== 1,
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"State4 entry not called correctly");
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BOOST_CHECK_MESSAGE(p.get_attribute(always_true_counter) == 1,"guard not called correctly");
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BOOST_CHECK_MESSAGE(p.get_attribute(always_false_counter) == 1,"guard not called correctly");
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BOOST_CHECK_MESSAGE(p.get_attribute(state2_to_state3_counter) == 1,"action not called correctly");
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BOOST_CHECK_MESSAGE(p.get_attribute(state3_to_state4_counter) == 1,"action not called correctly");
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// this event will bring us back to the initial state and thus, a new "loop" will be started
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p.process_event(event1);
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BOOST_CHECK_MESSAGE(p.current_state()[0] == 3,"State4 should be active"); //State4
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BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(State1)&>().get_attribute(exit_counter) == 2,
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"State1 exit not called correctly");
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BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(State1)&>().get_attribute(entry_counter) == 2,
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"State1 entry not called correctly");
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BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(State2)&>().get_attribute(exit_counter) == 2,
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"State2 exit not called correctly");
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BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(State2)&>().get_attribute(entry_counter) == 2,
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"State2 entry not called correctly");
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BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(State3)&>().get_attribute(exit_counter) == 2,
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"State3 exit not called correctly");
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BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(State3)&>().get_attribute(entry_counter) == 2,
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"State3 entry not called correctly");
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BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(State4)&>().get_attribute(entry_counter)== 2,
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"State4 entry not called correctly");
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BOOST_CHECK_MESSAGE(p.get_attribute(always_true_counter) == 2,"guard not called correctly");
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BOOST_CHECK_MESSAGE(p.get_attribute(always_false_counter) == 2,"guard not called correctly");
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BOOST_CHECK_MESSAGE(p.get_attribute(state2_to_state3_counter) == 2,"action not called correctly");
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BOOST_CHECK_MESSAGE(p.get_attribute(state3_to_state4_counter) == 2,"action not called correctly");
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}
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}
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