Daemon

alias daemon = Daemon!(
    "DaemonizeExample1",

    KeyValueList!(
        Signal.Terminate, (logger)
        {
            logger.logInfo("Exiting...");
            return false; // returning false will terminate daemon
        },
        Signal.HangUp, (logger)
        {
            logger.logInfo("Hello World!");
            return true; // continue execution
        }
    ),

    (logger, shouldExit) 
    {
        // will stop the daemon in 5 minutes
        auto time = Clock.currSystemTick + cast(TickDuration)5.dur!"minutes";
        bool timeout = false;
        while(!shouldExit() && time > Clock.currSystemTick) {  }

        logger.logInfo("Exiting main function!");

        return 0;
    }
);