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Serenity Operating System
1/*
2 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
3 * Copyright (c) 2022, the SerenityOS developers.
4 *
5 * SPDX-License-Identifier: BSD-2-Clause
6 */
7
8#include <LibCore/Timer.h>
9
10namespace Core {
11
12Timer::Timer(Object* parent)
13 : Object(parent)
14{
15}
16
17Timer::Timer(int interval_ms, Function<void()>&& timeout_handler, Object* parent)
18 : Object(parent)
19 , on_timeout(move(timeout_handler))
20 , m_interval_ms(interval_ms)
21{
22}
23
24void Timer::start()
25{
26 start(m_interval_ms);
27}
28
29void Timer::start(int interval_ms)
30{
31 if (m_active)
32 return;
33 m_interval_ms = interval_ms;
34 start_timer(interval_ms);
35 m_active = true;
36}
37
38void Timer::restart()
39{
40 restart(m_interval_ms);
41}
42
43void Timer::restart(int interval_ms)
44{
45 if (m_active)
46 stop();
47 start(interval_ms);
48}
49
50void Timer::stop()
51{
52 if (!m_active)
53 return;
54 stop_timer();
55 m_active = false;
56}
57
58void Timer::set_active(bool active)
59{
60 if (active)
61 start();
62 else
63 stop();
64}
65
66void Timer::timer_event(TimerEvent&)
67{
68 if (m_single_shot)
69 stop();
70 else {
71 if (m_interval_dirty) {
72 stop();
73 start(m_interval_ms);
74 }
75 }
76
77 if (on_timeout)
78 on_timeout();
79}
80
81}