example_library.cpp

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/* Author: Tyler Weaver
   Desc: Simple example using the [boost].SML library
*/
 
// C++
#include <string>
 
// ROS
#include <boost_sml/example.h>
#include <ros/ros.h>
using namespace sml_example;
 
int example_main(int argc, char** argv) {
  const std::string node_name = "sml_example";
 
  // Initialize ROS
  ros::init(argc, argv, node_name);
  ROS_INFO_STREAM_NAMED(node_name, "Starting");
 
  ros::AsyncSpinner spinner(1);
  spinner.start();
 
  SmlRosLogger logger(node_name);
  StateMachine state_machine{logger};
  Spin spin{};
 
  ros::Rate loop_rate(1);
  while (ros::ok() && !state_machine.is(boost::sml::X)) {
    state_machine.process_event(spin);
    ros::spinOnce();
    loop_rate.sleep();
  }
 
  // Shutdown
  ROS_INFO_STREAM_NAMED(node_name, "Shutting down.");
  spinner.stop();
  ros::shutdown();
 
  return 0;
}