so_5/two_handlers/main.cpp

/*
 * An example of receiving message of type M as immutable and as mutable ones.
 */

// Main SObjectizer header files.
#include <so_5/all.hpp>

// Definition of an agent for SObjectizer.
class two_handlers final : public so_5::agent_t {
  // Message to be sent as mutable and immutable.
  struct M final {};
  // Helper signal to stop the example.
  struct stop final : public so_5::signal_t {};

public :
  two_handlers(context_t ctx) : so_5::agent_t(std::move(ctx)) {
    so_subscribe_self()
      .event(&two_handlers::on_immutable_M)
      .event(&two_handlers::on_mutable_M)
      .event(&two_handlers::on_stop);
  }

  void so_evt_start() override {
    so_5::send<M>(*this); // Immutable message is sent.
    so_5::send<so_5::mutable_msg<M>>(*this); // Mutable message is sent.

    so_5::send<stop>(*this); // Finish the work.
  }

private :
  void on_immutable_M(mhood_t<M>) {
    std::cout << "on immutable" << std::endl;
  }
  void on_mutable_M(mhood_t<so_5::mutable_msg<M>>) {
    std::cout << "on mutable" << std::endl;
  }

  void on_stop(mhood_t<stop>) { so_deregister_agent_coop_normally(); }
};

int main()
{
  // Starting SObjectizer.
  so_5::launch(
    // A function for SO Environment initialization.
    [](so_5::environment_t & env)
    {
      // Creating and registering single agent as a cooperation.
      env.register_agent_as_coop( env.make_agent<two_handlers>() );
    } );

  return 0;
}