1/*
2 * Copyright (C) 2011 Apple Inc. All rights reserved.
3 * Copyright (C) 2017 Sony Interactive Entertainment Inc.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
15 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
16 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
18 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
19 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
20 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
21 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
22 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
23 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
24 * THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#pragma once
28
29#include "Clock.h"
30#include <wtf/MonotonicTime.h>
31
32namespace PAL {
33
34class ClockGeneric final : public Clock {
35public:
36 ClockGeneric();
37
38private:
39 void setCurrentTime(double) override;
40 double currentTime() const override;
41
42 void setPlayRate(double) override;
43 double playRate() const override { return m_rate; }
44
45 void start() override;
46 void stop() override;
47 bool isRunning() const override { return m_running; }
48
49 MonotonicTime now() const;
50
51 bool m_running;
52 double m_rate;
53 double m_offset;
54 MonotonicTime m_startTime;
55 mutable MonotonicTime m_lastTime;
56};
57
58}
59