daemonpp.cpp

#include "daemon.hpp"
using namespace daemonpp;
using namespace std::chrono_literals;

class my_daemon : public daemon
{
public:
    void on_start(const dconfig& cfg) override {
      /// Called once after daemon starts automatically with system startup or when you manually call `$ systemctl start my_daemon`
      /// Initialize your code here...

      dlog::info("my_daemon::on_start(): my_daemon version: " + cfg.get("version") + " started successfully!");
    }

    void on_update() override {
      /// Called every DURATION set in set_update_duration()...
      /// Update your code here...

      dlog::info("my_daemon::on_update()");
    }

    void on_stop() override {
      /// Called once before daemon is about to exit with system shutdown or when you manually call `$ systemctl stop my_daemon`
      /// Cleanup your code here...

      dlog::info("my_daemon::on_stop()");
    }

    void on_reload(const dconfig& cfg) override {
      /// Called once after your daemon's config fil is updated then reloaded with `$ systemctl reload my_daemon`
      /// Handle your config updates here...

      dlog::info("my_daemon::on_reload(): new daemon version from updated config: " + cfg.get("version"));
    }
};

int main(int argc, const char* argv[]) {
  my_daemon dmn;                         // create a daemon instance
  dmn.set_name("my_daemon"); // set daemon name to identify logs in syslog
  dmn.set_update_duration(3s);   // set duration to sleep before triggering the on_update callback 3 seconds
  dmn.set_cwd("/");      // set daemon's current working directory to root /
  dmn.run(argc, argv);                   // run your daemon
  return EXIT_SUCCESS;
}