ERR_peek_error 656 event/ngx_event_openssl.c if (sslerr == SSL_ERROR_ZERO_RETURN || ERR_peek_error() == 0) { ERR_peek_error 891 event/ngx_event_openssl.c if (sslerr == SSL_ERROR_ZERO_RETURN || ERR_peek_error() == 0) { ERR_peek_error 1205 event/ngx_event_openssl.c if (n != 1 && ERR_peek_error()) { ERR_peek_error 1311 event/ngx_event_openssl.c n = ERR_GET_REASON(ERR_peek_error()); ERR_peek_error 1376 event/ngx_event_openssl.c while (ERR_peek_error()) {