SSL_DOMAIN_FLAG_BLOCKING
&& (domain_flags & SSL_DOMAIN_FLAG_BLOCKING) != 0);
& (SSL_DOMAIN_FLAG_LEGACY_BLOCKING | SSL_DOMAIN_FLAG_BLOCKING))
| SSL_DOMAIN_FLAG_BLOCKING;
(SSL_DOMAIN_FLAG_SINGLE_THREAD | SSL_DOMAIN_FLAG_MULTI_THREAD | SSL_DOMAIN_FLAG_THREAD_ASSISTED | SSL_DOMAIN_FLAG_BLOCKING | SSL_DOMAIN_FLAG_LEGACY_BLOCKING)
| SSL_DOMAIN_FLAG_BLOCKING)))