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
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
/*
* Copyright (C) 2006 Apple Computer, Inc. All rights reserved.
* Copyright (C) 2006 Michael Emmel mike.emmel@gmail.com
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "SharedTimer.h"
#include <wtf/Assertions.h>
#include <wtf/CurrentTime.h>
#include <glib.h>
namespace WebCore {
static guint sharedTimer;
static void (*sharedTimerFiredFunction)();
void setSharedTimerFiredFunction(void (*f)())
{
sharedTimerFiredFunction = f;
}
static gboolean timeout_cb(gpointer)
{
if (sharedTimerFiredFunction)
sharedTimerFiredFunction();
return FALSE;
}
void setSharedTimerFireTime(double fireTime)
{
ASSERT(sharedTimerFiredFunction);
double interval = fireTime - currentTime();
guint intervalInMS;
if (interval < 0)
intervalInMS = 0;
else {
interval *= 1000;
intervalInMS = (guint)interval;
}
stopSharedTimer();
if (intervalInMS == 0)
sharedTimer = g_idle_add(timeout_cb, NULL);
else
sharedTimer = g_timeout_add_full(G_PRIORITY_DEFAULT, intervalInMS, timeout_cb, NULL, NULL);
}
void stopSharedTimer()
{
gboolean s = FALSE;
if (sharedTimer == 0)
return;
s = g_source_remove(sharedTimer);
ASSERT(s);
sharedTimer = 0;
}
}
|