QUIC_THREAD_ASSIST
int ossl_quic_thread_assist_init_start(QUIC_THREAD_ASSIST *qta,
int ossl_quic_thread_assist_stop_async(QUIC_THREAD_ASSIST *qta);
int ossl_quic_thread_assist_wait_stopped(QUIC_THREAD_ASSIST *qta);
int ossl_quic_thread_assist_cleanup(QUIC_THREAD_ASSIST *qta);
int ossl_quic_thread_assist_notify_deadline_changed(QUIC_THREAD_ASSIST *qta);
QUIC_THREAD_ASSIST thread_assist;
int ossl_quic_thread_assist_wait_stopped(QUIC_THREAD_ASSIST *qta)
int ossl_quic_thread_assist_cleanup(QUIC_THREAD_ASSIST *qta)
int ossl_quic_thread_assist_notify_deadline_changed(QUIC_THREAD_ASSIST *qta)
QUIC_THREAD_ASSIST *qta = arg;
int ossl_quic_thread_assist_init_start(QUIC_THREAD_ASSIST *qta,
int ossl_quic_thread_assist_stop_async(QUIC_THREAD_ASSIST *qta)