[DEV] add v1.66.0

This commit is contained in:
2018-01-12 21:47:58 +01:00
parent 87059bb1af
commit a97e9ae7d4
49032 changed files with 7668950 additions and 0 deletions

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# msm/example/mpl_graph/Jamfile.v2 tests the mpl_graph examples
#
# Copyright (c) 2010 Gordon Woodhull
#
# Use, modification and distribution is subject to 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)
import testing ;
project msm
:
requirements
<include>.
<toolset>gcc:<cxxflags>"-ftemplate-depth-300 -g0"
<toolset>darwin:<cxxflags>"-ftemplate-depth-300 -g0"
<toolset>intel:<cxxflags>"-g0"
<toolset>gcc:<optimization>off
<toolset>darwin:<optimization>off
<toolset>intel:<optimization>off
<library>/boost/test//boost_unit_test_framework/<link>static
<library>/boost/serialization//boost_serialization/<link>static
;
test-suite msm-unit-tests
:
[ compile adjacency_list_graph.cpp ]
[ compile depth_first_search.cpp ]
[ compile breadth_first_search.cpp ]
[ compile incidence_list_graph.cpp ]
[ compile msm_adaptor.cpp ]
;

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// Copyright 2008-2010 Gordon Woodhull
// 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)
// mplgraph.cpp : Defines the entry point for the console application.
//
#include <boost/msm/mpl_graph/adjacency_list_graph.hpp>
#include <boost/msm/mpl_graph/mpl_utils.hpp>
#include <boost/mpl/equal.hpp>
namespace mpl_graph = boost::msm::mpl_graph;
namespace mpl_utils = mpl_graph::mpl_utils;
namespace mpl = boost::mpl;
/*
test graph and tests are almost identical to incidence_list_graph.cpp
A -> B -> C -\--> D
\ |--> E
\ \--> F
\-----/
G // except this
*/
// vertices
struct A{}; struct B{}; struct C{}; struct D{}; struct E{}; struct F{}; struct G{};
// edges
struct A_B{}; struct B_C{}; struct C_D{}; struct C_E{}; struct C_F{}; struct B_F{};
typedef mpl::vector<
mpl::pair<A, mpl::vector<mpl::pair<A_B, B> > >,
mpl::pair<B, mpl::vector<mpl::pair<B_C, C>,
mpl::pair<B_F, F> > >,
mpl::pair<C, mpl::vector<mpl::pair<C_D, D>,
mpl::pair<C_E, E>,
mpl::pair<C_F, F> > >,
mpl::pair<G, mpl::vector<> > >
some_adjacency_list;
typedef mpl_graph::adjacency_list_graph<some_adjacency_list> some_graph;
BOOST_MPL_ASSERT(( boost::is_same<mpl_graph::source<B_C,some_graph>::type, B> ));
BOOST_MPL_ASSERT(( boost::is_same<mpl_graph::source<C_D,some_graph>::type, C> ));
BOOST_MPL_ASSERT(( boost::is_same<mpl_graph::target<C_D,some_graph>::type, D> ));
BOOST_MPL_ASSERT(( boost::is_same<mpl_graph::target<B_F,some_graph>::type, F> ));
// shouldn't assume the order but this seems to work
BOOST_MPL_ASSERT(( mpl_utils::set_equal<mpl_graph::out_edges<C,some_graph>::type, mpl::vector<C_D,C_E,C_F> > ));
BOOST_MPL_ASSERT(( mpl_utils::set_equal<mpl_graph::out_edges<B,some_graph>::type, mpl::vector<B_C,B_F> > ));
BOOST_MPL_ASSERT_RELATION( (mpl_graph::out_degree<B,some_graph>::value), ==, 2 );
BOOST_MPL_ASSERT_RELATION( (mpl_graph::out_degree<C,some_graph>::value), ==, 3 );
BOOST_MPL_ASSERT(( mpl_utils::set_equal<mpl_graph::in_edges<C,some_graph>::type, mpl::vector<B_C> > ));
BOOST_MPL_ASSERT(( mpl_utils::set_equal<mpl_graph::in_edges<F,some_graph>::type, mpl::vector<B_F,C_F> > ));
BOOST_MPL_ASSERT_RELATION( (mpl_graph::in_degree<A,some_graph>::value), ==, 0 );
BOOST_MPL_ASSERT_RELATION( (mpl_graph::in_degree<F,some_graph>::value), ==, 2 );
BOOST_MPL_ASSERT_RELATION( (mpl_graph::degree<A,some_graph>::value), ==, 1 );
BOOST_MPL_ASSERT_RELATION( (mpl_graph::degree<C,some_graph>::value), ==, 4 );
BOOST_MPL_ASSERT(( mpl_utils::set_equal<mpl_graph::adjacent_vertices<A,some_graph>::type, mpl::vector<B> > ));
BOOST_MPL_ASSERT(( mpl_utils::set_equal<mpl_graph::adjacent_vertices<C,some_graph>::type, mpl::vector<D,E,F> > ));
BOOST_MPL_ASSERT(( mpl_utils::set_equal<mpl_graph::vertices<some_graph>::type, mpl::vector<A,B,C,D,E,F,G> > ));
BOOST_MPL_ASSERT_RELATION( mpl_graph::num_vertices<some_graph>::value, ==, 7 );
BOOST_MPL_ASSERT_RELATION( mpl_graph::num_edges<some_graph>::value, ==, 6 );
int main(int argc, char* argv[])
{
return 0;
}

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// Copyright 2008-2010 Gordon Woodhull
// 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 <boost/msm/mpl_graph/breadth_first_search.hpp>
#include <boost/msm/mpl_graph/adjacency_list_graph.hpp>
#include <boost/msm/mpl_graph/incidence_list_graph.hpp>
#include <iostream>
namespace mpl_graph = boost::msm::mpl_graph;
namespace mpl = boost::mpl;
// vertices
struct A{}; struct B{}; struct C{}; struct D{}; struct E{}; struct F{}; struct G{};
// edges
struct A_B{}; struct B_C{}; struct C_D{}; struct C_E{}; struct C_F{}; struct B_F{};
/*
incidence list test graph:
A -> B -> C -\--> D
\ |--> E
\ \--> F
\-----/
*/
typedef mpl::vector<mpl::vector<A_B,A,B>,
mpl::vector<B_C,B,C>,
mpl::vector<C_D,C,D>,
mpl::vector<C_E,C,E>,
mpl::vector<C_F,C,F>,
mpl::vector<B_F,B,F> >
some_incidence_list;
typedef mpl_graph::incidence_list_graph<some_incidence_list> some_incidence_list_graph;
/*
adjacency list test graph:
A -> B -> C -\--> D
\ |--> E
\ \--> F
\-----/
G
*/
typedef mpl::vector<
mpl::pair<A, mpl::vector<mpl::pair<A_B, B> > >,
mpl::pair<B, mpl::vector<mpl::pair<B_C, C>,
mpl::pair<B_F, F> > >,
mpl::pair<C, mpl::vector<mpl::pair<C_D, D>,
mpl::pair<C_E, E>,
mpl::pair<C_F, F> > >,
mpl::pair<G, mpl::vector<> > >
some_adjacency_list;
typedef mpl_graph::adjacency_list_graph<some_adjacency_list> some_adjacency_list_graph;
struct preordering_visitor : mpl_graph::bfs_default_visitor_operations {
template<typename Vertex, typename Graph, typename State>
struct discover_vertex :
mpl::push_back<State, Vertex>
{};
};
struct postordering_visitor : mpl_graph::bfs_default_visitor_operations {
template<typename Vertex, typename Graph, typename State>
struct finish_vertex :
mpl::push_back<State, Vertex>
{};
};
struct examine_edge_visitor : mpl_graph::bfs_default_visitor_operations {
template<typename Edge, typename Graph, typename State>
struct examine_edge :
mpl::push_back<State, Edge>
{};
};
struct tree_edge_visitor : mpl_graph::bfs_default_visitor_operations {
template<typename Edge, typename Graph, typename State>
struct tree_edge :
mpl::push_back<State, Edge>
{};
};
// adjacency list tests
// preordering, start from A
typedef mpl::first<mpl_graph::
breadth_first_search<some_adjacency_list_graph,
preordering_visitor,
mpl::vector<>,
A>::type>::type
preorder_adj_a;
BOOST_MPL_ASSERT(( mpl::equal<preorder_adj_a::type, mpl::vector<A,B,C,F,D,E> > ));
// examine edges, start from A
typedef mpl::first<mpl_graph::
breadth_first_search<some_adjacency_list_graph,
examine_edge_visitor,
mpl::vector<>,
A>::type>::type
ex_edges_adj_a;
BOOST_MPL_ASSERT(( mpl::equal<ex_edges_adj_a::type, mpl::vector<A_B,B_C,B_F,C_D,C_E,C_F> > ));
// tree edges, start from A
typedef mpl::first<mpl_graph::
breadth_first_search<some_adjacency_list_graph,
tree_edge_visitor,
mpl::vector<>,
A>::type>::type
tree_edges_adj_a;
BOOST_MPL_ASSERT(( mpl::equal<tree_edges_adj_a::type, mpl::vector<A_B,B_C,B_F,C_D,C_E> > ));
// preordering, search all, default start node (first)
typedef mpl::first<mpl_graph::
breadth_first_search_all<some_adjacency_list_graph,
preordering_visitor,
mpl::vector<> >::type>::type
preorder_adj;
BOOST_MPL_ASSERT(( mpl::equal<preorder_adj::type, mpl::vector<A,B,C,F,D,E,G> > ));
// postordering, starting at A (same as preordering because BFS fully processes one vertex b4 moving to next)
typedef mpl::first<mpl_graph::
breadth_first_search<some_adjacency_list_graph,
postordering_visitor,
mpl::vector<>,
A>::type>::type
postorder_adj_a;
BOOST_MPL_ASSERT(( mpl::equal<postorder_adj_a::type, mpl::vector<A,B,C,F,D,E> > ));
// postordering, default start node (same as preordering because BFS fully processes one vertex b4 moving to next)
typedef mpl::first<mpl_graph::
breadth_first_search_all<some_adjacency_list_graph,
postordering_visitor,
mpl::vector<> >::type>::type
postorder_adj;
BOOST_MPL_ASSERT(( mpl::equal<postorder_adj::type, mpl::vector<A,B,C,F,D,E,G> > ));
// preordering starting at C
typedef mpl::first<mpl_graph::
breadth_first_search<some_adjacency_list_graph,
preordering_visitor,
mpl::vector<>,
C>::type>::type
preorder_adj_from_c;
BOOST_MPL_ASSERT(( mpl::equal<preorder_adj_from_c::type, mpl::vector<C,D,E,F> > ));
// preordering, search all, starting at C
typedef mpl::first<mpl_graph::
breadth_first_search_all<some_adjacency_list_graph,
preordering_visitor,
mpl::vector<>,
C>::type>::type
preorder_adj_from_c_all;
BOOST_MPL_ASSERT(( mpl::equal<preorder_adj_from_c_all::type, mpl::vector<C,D,E,F,A,B,G> > ));
// incidence list tests
// preordering, start from A
typedef mpl::first<mpl_graph::
breadth_first_search<some_incidence_list_graph,
preordering_visitor,
mpl::vector<>,
A>::type>::type
preorder_inc_a;
BOOST_MPL_ASSERT(( mpl::equal<preorder_inc_a::type, mpl::vector<A,B,C,F,D,E> > ));
// preordering, start from C
typedef mpl::first<mpl_graph::
breadth_first_search<some_incidence_list_graph,
preordering_visitor,
mpl::vector<>,
C>::type>::type
preorder_inc_c;
BOOST_MPL_ASSERT(( mpl::equal<preorder_inc_c::type, mpl::vector<C,D,E,F> > ));
// preordering, default start node (first)
typedef mpl::first<mpl_graph::
breadth_first_search_all<some_incidence_list_graph,
preordering_visitor,
mpl::vector<> >::type>::type
preorder_inc;
BOOST_MPL_ASSERT(( mpl::equal<preorder_inc::type, mpl::vector<A,B,C,F,D,E> > ));
// postordering, default start node
typedef mpl::first<mpl_graph::
breadth_first_search_all<some_incidence_list_graph,
postordering_visitor,
mpl::vector<> >::type>::type
postorder_inc;
BOOST_MPL_ASSERT(( mpl::equal<postorder_inc::type, mpl::vector<A,B,C,F,D,E> > ));
// preordering, search all, starting at C
typedef mpl::first<mpl_graph::
breadth_first_search_all<some_incidence_list_graph,
preordering_visitor,
mpl::vector<>,
C>::type>::type
preorder_inc_from_c;
BOOST_MPL_ASSERT(( mpl::equal<preorder_inc_from_c::type, mpl::vector<C,D,E,F,A,B> > ));
int main() {
return 0;
}

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// Copyright 2008-2010 Gordon Woodhull
// 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 <boost/msm/mpl_graph/depth_first_search.hpp>
#include <boost/msm/mpl_graph/adjacency_list_graph.hpp>
#include <boost/msm/mpl_graph/incidence_list_graph.hpp>
#include <iostream>
namespace mpl_graph = boost::msm::mpl_graph;
namespace mpl = boost::mpl;
// vertices
struct A{}; struct B{}; struct C{}; struct D{}; struct E{}; struct F{}; struct G{};
// edges
struct A_B{}; struct B_C{}; struct C_D{}; struct C_E{}; struct C_F{}; struct B_F{};
/*
incidence list test graph:
A -> B -> C -\--> D
\ |--> E
\ \--> F
\-----/
G
*/
typedef mpl::vector<mpl::vector<A_B,A,B>,
mpl::vector<B_C,B,C>,
mpl::vector<C_D,C,D>,
mpl::vector<C_E,C,E>,
mpl::vector<C_F,C,F>,
mpl::vector<B_F,B,F> >
some_incidence_list;
typedef mpl_graph::incidence_list_graph<some_incidence_list> some_incidence_list_graph;
/*
adjacency list test graph:
A -> B -> C -\--> D
\ |--> E
\ \--> F
\-----/
G
*/
typedef mpl::vector<
mpl::pair<A, mpl::vector<mpl::pair<A_B, B> > >,
mpl::pair<B, mpl::vector<mpl::pair<B_C, C>,
mpl::pair<B_F, F> > >,
mpl::pair<C, mpl::vector<mpl::pair<C_D, D>,
mpl::pair<C_E, E>,
mpl::pair<C_F, F> > >,
mpl::pair<G, mpl::vector<> > >
some_adjacency_list;
typedef mpl_graph::adjacency_list_graph<some_adjacency_list> some_adjacency_list_graph;
struct preordering_visitor : mpl_graph::dfs_default_visitor_operations {
template<typename Node, typename Graph, typename State>
struct discover_vertex :
mpl::push_back<State, Node>
{};
};
struct postordering_visitor : mpl_graph::dfs_default_visitor_operations {
template<typename Node, typename Graph, typename State>
struct finish_vertex :
mpl::push_back<State, Node>
{};
};
// adjacency list tests
// preordering, default start node (first)
typedef mpl::first<mpl_graph::
depth_first_search_all<some_adjacency_list_graph,
preordering_visitor,
mpl::vector<> >::type>::type
preorder_adj;
BOOST_MPL_ASSERT(( mpl::equal<preorder_adj::type, mpl::vector<A,B,C,D,E,F,G> > ));
// postordering, default start node
typedef mpl::first<mpl_graph::
depth_first_search_all<some_adjacency_list_graph,
postordering_visitor,
mpl::vector<> >::type>::type
postorder_adj;
BOOST_MPL_ASSERT(( mpl::equal<postorder_adj::type, mpl::vector<D,E,F,C,B,A,G> > ));
// preordering all starting at C
typedef mpl::first<mpl_graph::
depth_first_search_all<some_adjacency_list_graph,
preordering_visitor,
mpl::vector<>,
C>::type>::type
preorder_adj_all_from_c;
BOOST_MPL_ASSERT(( mpl::equal<preorder_adj_all_from_c::type, mpl::vector<C,D,E,F,A,B,G> > ));
// preordering just those starting at C
typedef mpl::first<mpl_graph::
depth_first_search<some_adjacency_list_graph,
preordering_visitor,
mpl::vector<>,
C>::type>::type
preorder_adj_from_c;
BOOST_MPL_ASSERT(( mpl::equal<preorder_adj_from_c::type, mpl::vector<C,D,E,F> > ));
// incidence list tests
// preordering, default start node (first)
typedef mpl::first<mpl_graph::
depth_first_search_all<some_incidence_list_graph,
preordering_visitor,
mpl::vector<> >::type>::type
preorder_inc;
BOOST_MPL_ASSERT(( mpl::equal<preorder_inc::type, mpl::vector<A,B,C,D,E,F> > ));
// postordering, default start node
typedef mpl::first<mpl_graph::
depth_first_search_all<some_incidence_list_graph,
postordering_visitor,
mpl::vector<> >::type>::type
postorder_inc;
BOOST_MPL_ASSERT(( mpl::equal<postorder_inc::type, mpl::vector<D,E,F,C,B,A> > ));
// preordering starting at C
typedef mpl::first<mpl_graph::
depth_first_search_all<some_incidence_list_graph,
preordering_visitor,
mpl::vector<>,
C>::type>::type
preorder_inc_all_from_c;
BOOST_MPL_ASSERT(( mpl::equal<preorder_inc_all_from_c::type, mpl::vector<C,D,E,F,A,B> > ));
// preordering starting at B
typedef mpl::first<mpl_graph::
depth_first_search<some_incidence_list_graph,
preordering_visitor,
mpl::vector<>,
B>::type>::type
preorder_inc_from_b;
BOOST_MPL_ASSERT(( mpl::equal<preorder_inc_from_b::type, mpl::vector<B,C,D,E,F> > ));
int main() {
return 0;
}

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// Copyright 2008-2010 Gordon Woodhull
// 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)
// mplgraph.cpp : Defines the entry point for the console application.
//
#include <boost/msm/mpl_graph/incidence_list_graph.hpp>
#include <boost/msm/mpl_graph/mpl_utils.hpp>
namespace mpl_graph = boost::msm::mpl_graph;
namespace mpl_utils = mpl_graph::mpl_utils;
namespace mpl = boost::mpl;
/*
test graph:
A -> B -> C -\--> D
\ |--> E
\ \--> F
\-----/
*/
// vertices
struct A{}; struct B{}; struct C{}; struct D{}; struct E{}; struct F{};
// edges
struct A_B{}; struct B_C{}; struct C_D{}; struct C_E{}; struct C_F{}; struct B_F{};
typedef mpl::vector<mpl::vector<A_B,A,B>,
mpl::vector<B_C,B,C>,
mpl::vector<C_D,C,D>,
mpl::vector<C_E,C,E>,
mpl::vector<C_F,C,F>,
mpl::vector<B_F,B,F> >
some_incidence_list;
typedef mpl_graph::incidence_list_graph<some_incidence_list> some_graph;
BOOST_MPL_ASSERT(( boost::is_same<mpl_graph::source<B_C,some_graph>::type, B> ));
BOOST_MPL_ASSERT(( boost::is_same<mpl_graph::source<C_D,some_graph>::type, C> ));
BOOST_MPL_ASSERT(( boost::is_same<mpl_graph::target<C_D,some_graph>::type, D> ));
BOOST_MPL_ASSERT(( boost::is_same<mpl_graph::target<B_F,some_graph>::type, F> ));
BOOST_MPL_ASSERT(( mpl_utils::set_equal<mpl_graph::out_edges<C,some_graph>::type, mpl::vector<C_D,C_E,C_F> > ));
BOOST_MPL_ASSERT(( mpl_utils::set_equal<mpl_graph::out_edges<B,some_graph>::type, mpl::vector<B_F,B_C> > ));
BOOST_MPL_ASSERT_RELATION( (mpl_graph::out_degree<B,some_graph>::value), ==, 2 );
BOOST_MPL_ASSERT_RELATION( (mpl_graph::out_degree<C,some_graph>::value), ==, 3 );
BOOST_MPL_ASSERT(( mpl_utils::set_equal<mpl_graph::in_edges<C,some_graph>::type, mpl::vector<B_C> > ));
BOOST_MPL_ASSERT(( mpl_utils::set_equal<mpl_graph::in_edges<F,some_graph>::type, mpl::vector<C_F,B_F> > ));
BOOST_MPL_ASSERT_RELATION( (mpl_graph::in_degree<A,some_graph>::value), ==, 0 );
BOOST_MPL_ASSERT_RELATION( (mpl_graph::in_degree<F,some_graph>::value), ==, 2 );
BOOST_MPL_ASSERT_RELATION( (mpl_graph::degree<A,some_graph>::value), ==, 1 );
BOOST_MPL_ASSERT_RELATION( (mpl_graph::degree<C,some_graph>::value), ==, 4 );
BOOST_MPL_ASSERT(( mpl_utils::set_equal<mpl_graph::adjacent_vertices<A,some_graph>::type, mpl::vector<B> > ));
BOOST_MPL_ASSERT(( mpl_utils::set_equal<mpl_graph::adjacent_vertices<C,some_graph>::type, mpl::vector<D,E,F> > ));
BOOST_MPL_ASSERT(( mpl_utils::set_equal<mpl_graph::vertices<some_graph>::type, mpl::vector<A,B,C,D,E,F> > ));
BOOST_MPL_ASSERT_RELATION( mpl_graph::num_vertices<some_graph>::value, ==, 6 );
BOOST_MPL_ASSERT_RELATION( mpl_graph::num_edges<some_graph>::value, ==, 6 );
int main(int argc, char* argv[])
{
return 0;
}

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// Copyright 2010 Gordon Woodhull
// modified from MSMv2.10/libs/msm/doc/HTML/examples/SimpleTutorial.cpp
// for the purpose of showing how to run mpl_graph algorithms on MSMs
// and distributed same license as source
// Copyright 2008 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>
// mpl_graph graph implementation and depth first search
#include <boost/msm/mpl_graph/incidence_list_graph.hpp>
#include <boost/msm/mpl_graph/depth_first_search.hpp>
#include <boost/msm/mpl_graph/breadth_first_search.hpp>
namespace msm = boost::msm;
namespace mpl = boost::mpl;
namespace mpl_graph = boost::msm::mpl_graph;
namespace
{
// events
struct play {};
struct end_pause {};
struct stop {};
struct pause {};
struct open_close {};
// A "complicated" event type that carries some data.
enum DiskTypeEnum
{
DISK_CD=0,
DISK_DVD=1
};
struct cd_detected
{
cd_detected(std::string name, DiskTypeEnum diskType)
: name(name),
disc_type(diskType)
{}
std::string name;
DiskTypeEnum disc_type;
};
// front-end: define the FSM structure
struct player_ : public msm::front::state_machine_def<player_>
{
// The list of FSM states
struct Empty : public msm::front::state<>
{
// every (optional) entry/exit methods get the event passed.
template <class Event,class FSM>
void on_entry(Event const&,FSM& ) {std::cout << "entering: Empty" << std::endl;}
template <class Event,class FSM>
void on_exit(Event const&,FSM& ) {std::cout << "leaving: Empty" << std::endl;}
};
struct Open : public msm::front::state<>
{
template <class Event,class FSM>
void on_entry(Event const& ,FSM&) {std::cout << "entering: Open" << std::endl;}
template <class Event,class FSM>
void on_exit(Event const&,FSM& ) {std::cout << "leaving: Open" << std::endl;}
};
// sm_ptr still supported but deprecated as functors are a much better way to do the same thing
struct Stopped : public msm::front::state<msm::front::default_base_state,msm::front::sm_ptr>
{
template <class Event,class FSM>
void on_entry(Event const& ,FSM&) {std::cout << "entering: Stopped" << std::endl;}
template <class Event,class FSM>
void on_exit(Event const&,FSM& ) {std::cout << "leaving: Stopped" << std::endl;}
void set_sm_ptr(player_* pl)
{
m_player=pl;
}
player_* m_player;
};
struct Playing : public msm::front::state<>
{
template <class Event,class FSM>
void on_entry(Event const&,FSM& ) {std::cout << "entering: Playing" << std::endl;}
template <class Event,class FSM>
void on_exit(Event const&,FSM& ) {std::cout << "leaving: Playing" << std::endl;}
};
// state not defining any entry or exit
struct Paused : public msm::front::state<>
{
};
// the initial state of the player SM. Must be defined
typedef Empty initial_state;
// transition actions
void start_playback(play const&) { std::cout << "player::start_playback\n"; }
void open_drawer(open_close const&) { std::cout << "player::open_drawer\n"; }
void close_drawer(open_close const&) { std::cout << "player::close_drawer\n"; }
void store_cd_info(cd_detected const&) { std::cout << "player::store_cd_info\n"; }
void stop_playback(stop const&) { std::cout << "player::stop_playback\n"; }
void pause_playback(pause const&) { std::cout << "player::pause_playback\n"; }
void resume_playback(end_pause const&) { std::cout << "player::resume_playback\n"; }
void stop_and_open(open_close const&) { std::cout << "player::stop_and_open\n"; }
void stopped_again(stop const&) {std::cout << "player::stopped_again\n";}
// guard conditions
bool good_disk_format(cd_detected const& evt)
{
// to test a guard condition, let's say we understand only CDs, not DVD
if (evt.disc_type != DISK_CD)
{
std::cout << "wrong disk, sorry" << std::endl;
return false;
}
return true;
}
// used to show a transition conflict. This guard will simply deactivate one transition and thus
// solve the conflict
bool auto_start(cd_detected const&)
{
return false;
}
typedef player_ p; // makes transition table cleaner
// Transition table for player
struct transition_table : mpl::vector<
// Start Event Next Action Guard
// +---------+-------------+---------+---------------------+----------------------+
a_row < Stopped , play , Playing , &p::start_playback >,
a_row < Stopped , open_close , Open , &p::open_drawer >,
_row < Stopped , stop , Stopped >,
// +---------+-------------+---------+---------------------+----------------------+
a_row < Open , open_close , Empty , &p::close_drawer >,
// +---------+-------------+---------+---------------------+----------------------+
a_row < Empty , open_close , Open , &p::open_drawer >,
row < Empty , cd_detected , Stopped , &p::store_cd_info ,&p::good_disk_format >,
row < Empty , cd_detected , Playing , &p::store_cd_info ,&p::auto_start >,
// +---------+-------------+---------+---------------------+----------------------+
a_row < Playing , stop , Stopped , &p::stop_playback >,
a_row < Playing , pause , Paused , &p::pause_playback >,
a_row < Playing , open_close , Open , &p::stop_and_open >,
// +---------+-------------+---------+---------------------+----------------------+
a_row < Paused , end_pause , Playing , &p::resume_playback >,
a_row < Paused , stop , Stopped , &p::stop_playback >,
a_row < Paused , open_close , Open , &p::stop_and_open >
// +---------+-------------+---------+---------------------+----------------------+
> {};
// 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;
}
// transition table is already an incidence list;
// select Edge, Source, Target = pair<Start,Event>, Start, Next
// making Start part of Edge is necessary because Edge tags have to be unique
template<typename Row>
struct row_to_incidence :
mpl::vector<mpl::pair<typename Row::Target, typename Row::Evt>, typename Row::Source, typename Row::Target> {};
typedef mpl::fold<player_::transition_table,
mpl::vector<>,
mpl::push_back<mpl::_1, row_to_incidence<mpl::_2> > >::type
transition_incidence_list;
typedef mpl_graph::incidence_list_graph<transition_incidence_list>
transition_graph;
struct preordering_dfs_visitor : mpl_graph::dfs_default_visitor_operations {
template<typename Node, typename Graph, typename State>
struct discover_vertex :
mpl::push_back<State, Node>
{};
};
typedef mpl::first<mpl_graph::
depth_first_search<transition_graph,
preordering_dfs_visitor,
mpl::vector<>,
player_::initial_state>::type>::type
dfs_from_initial_state;
BOOST_MPL_ASSERT(( mpl::equal<dfs_from_initial_state,
mpl::vector<Empty,Open,Stopped,Playing,Paused> > ));
struct preordering_bfs_visitor : mpl_graph::bfs_default_visitor_operations {
template<typename Node, typename Graph, typename State>
struct discover_vertex :
mpl::push_back<State, Node>
{};
};
typedef mpl::first<mpl_graph::
breadth_first_search<transition_graph,
preordering_bfs_visitor,
mpl::vector<>,
player_::initial_state>::type>::type
bfs_from_initial_state;
// yawn, BFS happens to produce the same result as DFS for this example
BOOST_MPL_ASSERT(( mpl::equal<bfs_from_initial_state,
mpl::vector<Empty,Open,Stopped,Playing,Paused> > ));
};
// Pick a back-end
typedef msm::back::state_machine<player_> player;
//
// Testing utilities.
//
static char const* const state_names[] = { "Stopped", "Open", "Empty", "Playing", "Paused" };
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);
// will be rejected, wrong disk type
p.process_event(
cd_detected("louie, louie",DISK_DVD)); pstate(p);
p.process_event(
cd_detected("louie, louie",DISK_CD)); pstate(p);
p.process_event(play());
// at this point, Play is active
p.process_event(pause()); pstate(p);
// go back to Playing
p.process_event(end_pause()); pstate(p);
p.process_event(pause()); pstate(p);
p.process_event(stop()); pstate(p);
// event leading to the same state
// no action method called as it is not present in the transition table
p.process_event(stop()); pstate(p);
}
}
int main()
{
test();
return 0;
}