ket&quot;</a> for more discussion on this. This is particularly important to keep in mind when writing a nonblocking QUIC application because it is common to leave the <b>SSL</b> connection object idle for some time when using nonblocking mode. By using &quot;thread assisted mode&quot; a separate thread is created by OpenSSL to do this automatically which means that the application developer does not need to handle this aspect. To do this we must use <a href="../man3/OSSL_QUIC_client_thread_method.html">OSS