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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)
#define FUSION_MAX_VECTOR_SIZE 20
#include <boost/msm/back/state_machine.hpp>
#include "char_event_dispatcher.hpp"
#include <boost/msm/front/state_machine_def.hpp>
#include <boost/msm/front/functor_row.hpp>
#include <boost/timer.hpp>
namespace msm = boost::msm;
namespace mpl = boost::mpl;
using namespace msm::front;
#include <iostream>
#ifdef WIN32
#include "windows.h"
#else
#include <sys/time.h>
#endif
// events
struct end_sub {template <class Event> end_sub(Event const&){}};
struct other_char {};
struct default_char {};
struct eos {};
namespace test_fsm // Concrete FSM implementation
{
// Concrete FSM implementation
struct parsing_ : public msm::front::state_machine_def<parsing_>
{
// no need for exception handling or message queue
typedef int no_exception_thrown;
typedef int no_message_queue;
struct Waiting : public msm::front::state<>
{
// optional entry/exit methods
//template <class Event,class FSM>
//void on_entry(Event const&,FSM& ) {std::cout << "entering: Waiting" << std::endl;}
//template <class Event,class FSM>
//void on_exit(Event const&,FSM& ) {std::cout << "leaving: Waiting" << std::endl;}
};
struct Digit1 : public msm::front::state<>
{
// optional entry/exit methods
//template <class Event,class FSM>
//void on_entry(Event const&,FSM& ) {std::cout << "entering: Digit1" << std::endl;}
//template <class Event,class FSM>
//void on_exit(Event const&,FSM& ) {std::cout << "leaving: Digit1" << std::endl;}
};
struct Digit2 : public msm::front::state<>
{
// optional entry/exit methods
//template <class Event,class FSM>
//void on_entry(Event const&,FSM& ) {std::cout << "entering: Digit2" << std::endl;}
//template <class Event,class FSM>
//void on_exit(Event const&,FSM& ) {std::cout << "leaving: Digit2" << std::endl;}
};
struct Digit3 : public msm::front::state<>
{
// optional entry/exit methods
//template <class Event,class FSM>
//void on_entry(Event const&,FSM& ) {std::cout << "entering: Digit3" << std::endl;}
//template <class Event,class FSM>
//void on_exit(Event const&,FSM& ) {std::cout << "leaving: Digit3" << std::endl;}
};
struct Digit4 : public msm::front::state<>
{
// optional entry/exit methods
//template <class Event,class FSM>
//void on_entry(Event const&,FSM& ) {std::cout << "entering: Digit4" << std::endl;}
//template <class Event,class FSM>
//void on_exit(Event const&,FSM& ) {std::cout << "leaving: Digit4" << std::endl;}
};
struct MinusChar1 : public msm::front::state<>
{
// optional entry/exit methods
//template <class Event,class FSM>
//void on_entry(Event const&,FSM& ) {std::cout << "entering: MinusChar1" << std::endl;}
//template <class Event,class FSM>
//void on_exit(Event const&,FSM& ) {std::cout << "leaving: MinusChar1" << std::endl;}
};
struct Digit5 : public msm::front::state<>
{
// optional entry/exit methods
//template <class Event,class FSM>
//void on_entry(Event const&,FSM& ) {std::cout << "entering: Digit5" << std::endl;}
//template <class Event,class FSM>
//void on_exit(Event const&,FSM& ) {std::cout << "leaving: Digit5" << std::endl;}
};
struct Digit6 : public msm::front::state<>
{
// optional entry/exit methods
//template <class Event,class FSM>
//void on_entry(Event const&,FSM& ) {std::cout << "entering: Digit6" << std::endl;}
//template <class Event,class FSM>
//void on_exit(Event const&,FSM& ) {std::cout << "leaving: Digit6" << std::endl;}
};
struct Digit7 : public msm::front::state<>
{
// optional entry/exit methods
//template <class Event,class FSM>
//void on_entry(Event const&,FSM& ) {std::cout << "entering: Digit7" << std::endl;}
//template <class Event,class FSM>
//void on_exit(Event const&,FSM& ) {std::cout << "leaving: Digit7" << std::endl;}
};
struct Digit8 : public msm::front::state<>
{
// optional entry/exit methods
//template <class Event,class FSM>
//void on_entry(Event const&,FSM& ) {std::cout << "entering: Digit8" << std::endl;}
//template <class Event,class FSM>
//void on_exit(Event const&,FSM& ) {std::cout << "leaving: Digit8" << std::endl;}
};
struct MinusChar2 : public msm::front::state<>
{
// optional entry/exit methods
//template <class Event,class FSM>
//void on_entry(Event const&,FSM& ) {std::cout << "entering: MinusChar2" << std::endl;}
//template <class Event,class FSM>
//void on_exit(Event const&,FSM& ) {std::cout << "leaving: MinusChar2" << std::endl;}
};
struct Digit9 : public msm::front::state<>
{
// optional entry/exit methods
//template <class Event,class FSM>
//void on_entry(Event const&,FSM& ) {std::cout << "entering: Digit9" << std::endl;}
//template <class Event,class FSM>
//void on_exit(Event const&,FSM& ) {std::cout << "leaving: Digit9" << std::endl;}
};
struct Digit10 : public msm::front::state<>
{
// optional entry/exit methods
//template <class Event,class FSM>
//void on_entry(Event const&,FSM& ) {std::cout << "entering: Digit10" << std::endl;}
//template <class Event,class FSM>
//void on_exit(Event const&,FSM& ) {std::cout << "leaving: Digit10" << std::endl;}
};
struct Digit11 : public msm::front::state<>
{
// optional entry/exit methods
//template <class Event,class FSM>
//void on_entry(Event const&,FSM& ) {std::cout << "entering: Digit11" << std::endl;}
//template <class Event,class FSM>
//void on_exit(Event const&,FSM& ) {std::cout << "leaving: Digit11" << std::endl;}
};
struct Digit12 : public msm::front::state<>
{
// optional entry/exit methods
//template <class Event,class FSM>
//void on_entry(Event const&,FSM& ) {std::cout << "entering: Digit12" << std::endl;}
//template <class Event,class FSM>
//void on_exit(Event const&,FSM& ) {std::cout << "leaving: Digit12" << std::endl;}
};
struct MinusChar3 : public msm::front::state<>
{
// optional entry/exit methods
//template <class Event,class FSM>
//void on_entry(Event const&,FSM& ) {std::cout << "entering: MinusChar3" << std::endl;}
//template <class Event,class FSM>
//void on_exit(Event const&,FSM& ) {std::cout << "leaving: MinusChar3" << std::endl;}
};
struct Digit13 : public msm::front::state<>
{
// optional entry/exit methods
//template <class Event,class FSM>
//void on_entry(Event const&,FSM& ) {std::cout << "entering: Digit13" << std::endl;}
//template <class Event,class FSM>
//void on_exit(Event const&,FSM& ) {std::cout << "leaving: Digit13" << std::endl;}
};
struct Digit14 : public msm::front::state<>
{
// optional entry/exit methods
//template <class Event,class FSM>
//void on_entry(Event const&,FSM& ) {std::cout << "entering: Digit14" << std::endl;}
//template <class Event,class FSM>
//void on_exit(Event const&,FSM& ) {std::cout << "leaving: Digit14" << std::endl;}
};
struct Digit15 : public msm::front::state<>
{
// optional entry/exit methods
//template <class Event,class FSM>
//void on_entry(Event const&,FSM& ) {std::cout << "entering: Digit15" << std::endl;}
//template <class Event,class FSM>
//void on_exit(Event const&,FSM& ) {std::cout << "leaving: Digit15" << std::endl;}
};
//struct Start : public msm::front::state<> {};
struct Parsed : public msm::front::state<> {};
//struct Failed : public msm::front::state<> {};
// the initial state of the player SM. Must be defined
typedef Waiting initial_state;
// transition actions
struct test_fct
{
template <class FSM,class EVT,class SourceState,class TargetState>
void operator()(EVT const& ,FSM&,SourceState& ,TargetState& )
{
std::cout << "Parsed!" << std::endl;
}
};
// guard conditions
// Transition table for parsing_
struct transition_table : mpl::vector<
// Start Event Next Action Guard
// +-------------+-------------------+---------+---------------------+----------------------+
Row < Waiting , digit , Digit1 >,
Row < Digit1 , digit , Digit2 >,
Row < Digit2 , digit , Digit3 >,
Row < Digit3 , digit , Digit4 >,
Row < Digit4 , event_char<'-'> , MinusChar1 >,
Row < MinusChar1 , digit , Digit5 >,
Row < Digit5 , digit , Digit6 >,
Row < Digit6 , digit , Digit7 >,
Row < Digit7 , digit , Digit8 >,
Row < Digit8 , event_char<'-'> , MinusChar2 >,
Row < MinusChar2 , digit , Digit9 >,
Row < Digit9 , digit , Digit10 >,
Row < Digit10 , digit , Digit11 >,
Row < Digit11 , digit , Digit12 >,
Row < Digit12 , event_char<'-'> , MinusChar3 >,
Row < MinusChar3 , digit , Digit13 >,
Row < Digit13 , digit , Digit14 >,
Row < Digit14 , digit , Digit15 >,
Row < Digit15 , eos , Parsed >,
Row < Parsed , eos , Waiting >
// +---------+-------------+---------+---------------------+----------------------+
> {};
// 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;
}
};
typedef msm::back::state_machine<parsing_> parsing;
}
#ifndef WIN32
long mtime(struct timeval& tv1,struct timeval& tv2)
{
return (tv2.tv_sec-tv1.tv_sec) *1000000 + ((tv2.tv_usec-tv1.tv_usec));
}
#endif
// This declares the statically-initialized char_event_dispatcher instance.
template <class Fsm>
const msm::back::char_event_dispatcher<Fsm>
msm::back::char_event_dispatcher<Fsm>::instance;
struct Parser
{
Parser():p(){p.start();}
void new_char(char c)
{
typedef msm::back::char_event_dispatcher<test_fsm::parsing> table;
table::instance.process_event(p,c);
}
void finish_string(){p.process_event(eos());}
void reinit(){p.process_event(eos());}
test_fsm::parsing p;
};
void msm_match(const char* input)
{
test_fsm::parsing p;
p.start();
int j=0;
while(input[j])
//for (size_t j=0;j<len;++j)
{
switch (input[j])
{
case '0':
p.process_event(char_0());
break;
case '1':
p.process_event(char_1());
break;
case '2':
p.process_event(char_2());
break;
case '3':
p.process_event(char_3());
break;
case '4':
p.process_event(char_4());
break;
case '5':
p.process_event(char_5());
break;
case '6':
p.process_event(char_6());
break;
case '7':
p.process_event(char_7());
break;
case '8':
p.process_event(char_8());
break;
case '9':
p.process_event(char_9());
break;
case '-':
p.process_event(event_char<'-'>());
break;
default:
p.process_event(default_char());
break;
}
++j;
}
p.process_event(eos());
p.process_event(eos());
}
double time_match(const char* text)
{
boost::timer tim;
int iter = 1;
int counter, repeats;
double result = 0;
double run;
do
{
tim.restart();
for(counter = 0; counter < iter; ++counter)
{
msm_match( text);
}
result = tim.elapsed();
iter *= 2;
} while(result < 0.5);
iter /= 2;
// repeat test and report least value for consistency:
for(repeats = 0; repeats < 10; ++repeats)
{
tim.restart();
for(counter = 0; counter < iter; ++counter)
{
msm_match( text);
}
run = tim.elapsed();
result = (std::min)(run, result);
}
return result / iter;
}
int main()
{
// for timing
#ifdef WIN32
LARGE_INTEGER res;
::QueryPerformanceFrequency(&res);
LARGE_INTEGER li,li2;
#else
struct timeval tv1,tv2;
gettimeofday(&tv1,NULL);
#endif
test_fsm::parsing p;
p.start();
const char* input = "1234-5678-1234-456";
size_t len = strlen(input);
// for timing
#ifdef WIN32
::QueryPerformanceCounter(&li);
#else
gettimeofday(&tv1,NULL);
#endif
for (int i=0;i<1000;++i)
{
int j=0;
while(input[j])
//for (size_t j=0;j<len;++j)
{
switch (input[j])
{
case '0':
p.process_event(char_0());
break;
case '1':
p.process_event(char_1());
break;
case '2':
p.process_event(char_2());
break;
case '3':
p.process_event(char_3());
break;
case '4':
p.process_event(char_4());
break;
case '5':
p.process_event(char_5());
break;
case '6':
p.process_event(char_6());
break;
case '7':
p.process_event(char_7());
break;
case '8':
p.process_event(char_8());
break;
case '9':
p.process_event(char_9());
break;
case '-':
p.process_event(event_char<'-'>());
break;
default:
p.process_event(default_char());
break;
}
++j;
}
p.process_event(eos());
p.process_event(eos());
}
#ifdef WIN32
::QueryPerformanceCounter(&li2);
#else
gettimeofday(&tv2,NULL);
#endif
#ifdef WIN32
std::cout << "msm(1) took in s:" << (double)(li2.QuadPart-li.QuadPart)/res.QuadPart <<"\n" <<std::endl;
#else
std::cout << "msm(1) took in us:" << mtime(tv1,tv2) <<"\n" <<std::endl;
#endif
Parser parse;
// for timing
#ifdef WIN32
::QueryPerformanceCounter(&li);
#else
gettimeofday(&tv1,NULL);
#endif
for (int i=0;i<1000;++i)
{
for (size_t j=0;j<len;++j)
{
parse.new_char(input[j]);
}
parse.finish_string();
parse.reinit();
}
#ifdef WIN32
::QueryPerformanceCounter(&li2);
#else
gettimeofday(&tv2,NULL);
#endif
#ifdef WIN32
std::cout << "msm(2) took in s:" << (double)(li2.QuadPart-li.QuadPart)/res.QuadPart <<"\n" <<std::endl;
#else
std::cout << "msm(2) took in us:" << mtime(tv1,tv2) <<"\n" <<std::endl;
#endif
std::cout << "msm(3) took in s:" << time_match(input) <<"\n" <<std::endl;
return 0;
}
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