1/*
2 * Copyright (C) 2009 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1.  Redistributions of source code must retain the above copyright
9 *     notice, this list of conditions and the following disclaimer.
10 * 2.  Redistributions in binary form must reproduce the above copyright
11 *     notice, this list of conditions and the following disclaimer in the
12 *     documentation and/or other materials provided with the distribution.
13 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
14 *     its contributors may be used to endorse or promote products derived
15 *     from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include "config.h"
30
31#if PLATFORM(MAC) && HAVE(RUNLOOP_TIMER)
32
33#include "RunLoopTimer.h"
34
35namespace WebCore {
36
37RunLoopTimerBase::~RunLoopTimerBase()
38{
39    stop();
40}
41
42static void timerFired(CFRunLoopTimerRef, void* context)
43{
44    RunLoopTimerBase* timer = static_cast<RunLoopTimerBase*>(context);
45    timer->fired();
46}
47
48void RunLoopTimerBase::start(double nextFireInterval, double repeatInterval)
49{
50    if (m_timer)
51        CFRunLoopTimerInvalidate(m_timer.get());
52    CFRunLoopTimerContext context = { 0, this, 0, 0, 0 };
53    m_timer.adoptCF(CFRunLoopTimerCreate(0, CFAbsoluteTimeGetCurrent() + nextFireInterval, repeatInterval, 0, 0, timerFired, &context));
54}
55
56void RunLoopTimerBase::schedule(const SchedulePair* schedulePair)
57{
58    ASSERT_ARG(schedulePair, schedulePair);
59    ASSERT_WITH_MESSAGE(m_timer, "Timer must have one of the start functions called before calling schedule().");
60    CFRunLoopAddTimer(schedulePair->runLoop(), m_timer.get(), schedulePair->mode());
61}
62
63void RunLoopTimerBase::schedule(const SchedulePairHashSet& schedulePairs)
64{
65    SchedulePairHashSet::const_iterator end = schedulePairs.end();
66    for (SchedulePairHashSet::const_iterator it = schedulePairs.begin(); it != end; ++it)
67        schedule((*it).get());
68}
69
70void RunLoopTimerBase::stop()
71{
72    if (!m_timer)
73        return;
74    CFRunLoopTimerInvalidate(m_timer.get());
75    m_timer = 0;
76}
77
78bool RunLoopTimerBase::isActive() const
79{
80    return m_timer && CFRunLoopTimerIsValid(m_timer.get());
81}
82
83} // namespace WebCore
84
85#endif // PLATFORM(MAC) && HAVE(RUNLOOP_TIMER)
86