toggle-switch.cc

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#include <iostream>
#include <chrono>
#include "elma.h"


using namespace std::chrono;
using namespace elma;

namespace toggle_switch_example {


    class Trigger : public Process {
        public:

        Trigger() : Process("trigger") {}

        void init() {}

        void start() {}

        void update() { 
            std::cout << "switch at " << milli_time() << "\n";
            emit(Event("switch"));
        }

        void stop() {}

    };

    class Mode : public State {

        public:
        Mode(std::string name) : State(name) {}

        void entry(const Event& e) {
            std::cout << "entering " + name() << "\n";
        }

        void during() {}

        void exit(const Event&) {}
    };

}

int main() {

    Manager m;
    toggle_switch_example::Trigger trigger;
    toggle_switch_example::Mode off("off"), on("on");
    StateMachine fsm("toggle switch");

    fsm.set_initial(off)
       .set_propagate(false)
       .add_transition("switch", off, on)
       .add_transition("switch", on, off);

    m.schedule(trigger, 1_ms)
     .schedule(fsm, 5_ms) // Doesn't matter since mode has empty update()
     .init()
     .run(11_ms);
     
}