Method onStarted

tests/test_ssl.cpp:108–108

protected:
    void onStarted() override { started = true; }
    void onStopped() override { stopped = true; }
    void onConnected(std::shared_ptr<SSLSession>& session) override { connected = true; }
    void onHandshaked(std::shared_ptr<SSLSession>& session) override { handshaked = true; ++clients; }