xcb_sync_query_fence - Man Page
Synopsis
#include <xcb/sync.h>
Request function
xcb_sync_query_fence_cookie_t xcb_sync_query_fence(xcb_connection_t *conn, xcb_sync_fence_t fence);
Reply datastructure
typedef struct xcb_sync_query_fence_reply_t {
uint8_t response_type;
uint8_t pad0;
uint16_t sequence;
uint32_t length;
uint8_t triggered;
uint8_t pad1[23];
} xcb_sync_query_fence_reply_t;Reply function
xcb_sync_query_fence_reply_t *xcb_sync_query_fence_reply(xcb_connection_t *conn, xcb_sync_query_fence_cookie_t cookie, xcb_generic_error_t **e);
Request Arguments
- conn
The XCB connection to X11.
- fence
TODO: NOT YET DOCUMENTED.
Reply Fields
- response_type
The type of this reply, in this case XCB_SYNC_QUERY_FENCE. This field is also present in the xcb_generic_reply_t and can be used to tell replies apart from each other.
- sequence
The sequence number of the last request processed by the X11 server.
- length
The length of the reply, in words (a word is 4 bytes).
- triggered
TODO: NOT YET DOCUMENTED.
Description
Return Value
Returns an xcb_sync_query_fence_cookie_t. Errors have to be handled when calling the reply function xcb_sync_query_fence_reply.
If you want to handle errors in the event loop instead, use xcb_sync_query_fence_unchecked. See xcb-requests(3) for details.
Errors
This request does never generate any errors.
See Also
Author
Generated from sync.xml. Contact xcb@lists.freedesktop.org for corrections and improvements.
Referenced By
The man pages xcb_sync_query_fence_reply(3) and xcb_sync_query_fence_unchecked(3) are aliases of xcb_sync_query_fence(3).