ceph/src/boost/libs/msm/doc/PDF/examples/distributed_table/Open.hpp

   1 // Copyright 2010 Christophe Henry
   2 // henry UNDERSCORE christophe AT hotmail DOT com
   3 // This is an extended version of the state machine available in the boost::mpl library
   4 // Distributed under the same license as the original.
   5 // Copyright for the original version:
   6 // Copyright 2005 David Abrahams and Aleksey Gurtovoy. Distributed
   7 // under the Boost Software License, Version 1.0. (See accompanying
   8 // file LICENSE_1_0.txt or copy at
   9 // http://www.boost.org/LICENSE_1_0.txt)
  10
  11 #ifndef OPEN_HPP
  12 #define OPEN_HPP
  13
  14 // back-end
  15 #include <boost/msm/back/state_machine.hpp>
  16 //front-end
  17 #include <boost/msm/front/state_machine_def.hpp>
  18 #include <boost/msm/front/row2.hpp>
  19
  20 #include "Events.hpp"
  21
  22 struct Empty;
  23
  24 namespace msm = boost::msm;
  25 namespace mpl = boost::mpl;
  26 using namespace msm::front;
  27
  28 struct Open : public msm::front::state<>
  29 {
  30     template <class Event,class FSM>
  31     void on_entry(Event const& ,FSM&) {std::cout << "entering: Open" << std::endl;}
  32     template <class Event,class FSM>
  33     void on_exit(Event const&,FSM& ) {std::cout << "leaving: Open" << std::endl;}
  34     void close_drawer(open_close const&);
  35
  36     struct internal_transition_table : mpl::vector<
  37         //               Start     Event         Next      Action                      Guard
  38         //+-------------+---------+-------------+---------+---------------------------+----------------------+
  39     msm::front::a_row2  < Open    , open_close  , Empty   , Open,&Open::close_drawer                         >
  40         //+-------------+---------+-------------+---------+---------------------------+----------------------+
  41     > {};
  42 };
  43
  44 #endif