blob: 4e8380fe21fceaa3607c05ddf8021460a8196e8d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
/* Copyright (C) 2001-2002 Bart Massey and Jamey Sharp.
* All Rights Reserved.
* Portions Copyright 1986, 1998 The Open Group
*
* See the file COPYING for licensing information. */
#include "xclint.h"
#include <xcb_event.h>
/* Read in pending events if needed and return the number of queued events. */
int XEventsQueued(register Display *dpy, int mode)
{
int ret = XCBEventQueueLength(XCBConnectionOfDisplay(dpy));
if(!ret && mode != QueuedAlready)
ret = _XEventsQueued(dpy, mode);
return ret;
}
int XPending(Display *dpy)
{
return XEventsQueued(dpy, QueuedAfterFlush);
}
int _XEventsQueued(register Display *dpy, int mode)
{
XCBConnection *c = XCBConnectionOfDisplay(dpy);
if(mode == QueuedAfterFlush)
XCBFlush(c);
/* wait for handle to be readable, without blocking. */
/* FIXME: this select/XCBWait hack breaks encapsulation. */
if(XCBEventQueueIsEmpty(c))
{
fd_set fds;
struct timeval tv = { 0, 0 };
FD_ZERO(&fds);
FD_SET(dpy->fd, &fds);
if(select(dpy->fd + 1, &fds, 0, 0, &tv) < 1)
return 0;
XCBWait(c->handle, /* should_write */ 0);
}
return XCBEventQueueLength(c);
}
|
