SSL_SESS_CACHE_SERVER
SSL_SESS_CACHE_NO_INTERNAL | SSL_SESS_CACHE_SERVER);
SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_SERVER);
#define SSL_SESS_CACHE_BOTH (SSL_SESS_CACHE_CLIENT | SSL_SESS_CACHE_SERVER)
ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
ssl_update_cache(s, SSL_SESS_CACHE_SERVER);
if (!(SSL_CONNECTION_GET_CTX(s)->session_cache_mode & SSL_SESS_CACHE_SERVER)
ssl_update_cache(s, SSL_SESS_CACHE_SERVER);
SSL_SESS_CACHE_SERVER