diff options
Diffstat (limited to 'src/xcb.h')
| -rw-r--r-- | src/xcb.h | 22 |
1 files changed, 20 insertions, 2 deletions
@@ -183,8 +183,7 @@ typedef struct xcb_auth_info_t { int xcb_flush(xcb_connection_t *c); /** - * @brief Returns the maximum request length field from the connection - * setup data. + * @brief Returns the maximum request length that this server accepts. * @param c: The connection to the X server. * @return The maximum request length field. * @@ -200,6 +199,25 @@ int xcb_flush(xcb_connection_t *c); */ uint32_t xcb_get_maximum_request_length(xcb_connection_t *c); +/** + * @brief Prefetch the maximum request length without blocking. + * @param c: The connection to the X server. + * + * Without blocking, does as much work as possible toward computing + * the maximum request length accepted by the X server. + * + * Invoking this function may cause a call to xcb_big_requests_enable, + * but will not block waiting for the reply. + * xcb_get_maximum_request_length will return the prefetched data + * after possibly blocking while the reply is retrieved. + * + * Note that in order for this function to be fully non-blocking, the + * application must previously have called + * xcb_prefetch_extension_data(c, &xcb_big_requests_id) and the reply + * must have already arrived. + */ +void xcb_prefetch_maximum_request_length(xcb_connection_t *c); + /* xcb_in.c */ |