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Serenity Operating System
1/*
2 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this
9 * list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
22 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include <AK/Badge.h>
28#include <LibCore/Event.h>
29#include <LibCore/EventLoop.h>
30#include <LibCore/Notifier.h>
31
32namespace Core {
33
34Notifier::Notifier(int fd, unsigned event_mask, Object* parent)
35 : Object(parent)
36 , m_fd(fd)
37 , m_event_mask(event_mask)
38{
39 set_enabled(true);
40}
41
42Notifier::~Notifier()
43{
44 set_enabled(false);
45}
46
47void Notifier::set_enabled(bool enabled)
48{
49 if (enabled)
50 Core::EventLoop::register_notifier({}, *this);
51 else
52 Core::EventLoop::unregister_notifier({}, *this);
53}
54
55void Notifier::event(Core::Event& event)
56{
57 if (event.type() == Core::Event::NotifierRead && on_ready_to_read) {
58 on_ready_to_read();
59 } else if (event.type() == Core::Event::NotifierWrite && on_ready_to_write) {
60 on_ready_to_write();
61 } else {
62 Object::event(event);
63 }
64}
65
66}