//demo 1: TLS-server
int main(int argc, char** argv) {
    Engine& eng = Engine::getInstance();
    eng.init(argv[0]);
    Loop& loop = eng.getLoop();
    net::Acceptor* conn= new net::Acceptor(loop, net::Linker::funcOnLink, true?"TLS":nullptr);
    succ = conn->open("0.0.0.0:443");
    conn->drop();
    while (loop.run()) {    }
    eng.uninit();
    return 0;
}