added msm

[SVN r63060]

doc/HTML/examples/distributed_table/DistributedTable.cpp

@@ -0,0 +1,74 @@
+// 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;
+}
+