Hint
WeatherD:
    weatherD (Rust):
    POST: /create_source
        body example:
        {
           'name': source_name,
           'password': password,
           'is_public': bool,
           'landscape' : string,
           'race' : string,
           "population" : string 
        }

        RESPONSE: token to subscribe on source with name source_name (see NotificationsAPI /subscribe)
                  (token is generated by NotificationsApi)



    POST: /push_message
        body example:
        {
        'name': source_name,
        'password': password,
        'message': message
        }



    NotificationsAPI:
        GET /subscribe?source={sourceName}&token={token}

        token from create_source method.

        RESPONSE:
            Protocol: SSE (Server-side-events)
            messages from source with source_name

struct AddUnitStackFrame
{
    sockaddr_in addr;
    CommandHeader h;
    CommandAddUnit cmd;
    CommandAddUnitResponse response;
    int sock;
    size_t size;
};

fd = 3