Hey everyone,

I am a webdev who is using cpp a little bit for some critical components of my application. I am building a postgres listen/notify server and want it to be multithreaded. So far this is what I have:

class Notifier
{
private:
  shared_ptr<json> payload_json;

public:
  Notifier(const string &payload)
  {
    payload_json = make_shared<json>(json::parse(payload));
  }

  void notify()
  {
     // do something with payload_json
  }
};

class Listener : public notification_receiver
{
private:
public:
  Listener(connection_base &c) : notification_receiver(c, "notifications")
  {
    cout << "Listening for notifications..." << endl;
  }

  void operator()(string const &payload, int backend_pid)
  {
    try
    {
      auto notifier = new Notifier(payload);
      thread t(&Notifier::notify, notifier);
      t.detach();
    }
    catch (json_exception &e)
    {
      cerr << "JSON PARSE ERROR: " << e.what() << endl;
    }
  }
};

void NotificationService::run()
{
  Listener l(*conn);
  while (true)
  {
    conn->await_notification();
  }
}

My question is, does making payload_json a unique_ptr cause it to free payload_json after the thread is done? Any tips or advice is appreciated!

Thanks!