blob: ef79e8e59191670a8403e8fca1eb9ef3916f950a (
plain)
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
|
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2019, Google Inc.
*
* event_loop.h - cam - Event loop
*/
#pragma once
#include <chrono>
#include <functional>
#include <list>
#include <memory>
#include <mutex>
#include <event2/util.h>
struct event_base;
class EventLoop
{
public:
enum EventType {
Read = 1,
Write = 2,
};
EventLoop();
~EventLoop();
static EventLoop *instance();
int exec();
void exit(int code = 0);
void callLater(const std::function<void()> &func);
void addFdEvent(int fd, EventType type,
const std::function<void()> &handler);
using duration = std::chrono::steady_clock::duration;
void addTimerEvent(const std::chrono::microseconds period,
const std::function<void()> &handler);
private:
struct Event {
Event(const std::function<void()> &callback);
~Event();
static void dispatch(int fd, short events, void *arg);
std::function<void()> callback_;
struct event *event_;
};
static EventLoop *instance_;
struct event_base *base_;
int exitCode_;
std::list<std::function<void()>> calls_;
std::list<std::unique_ptr<Event>> events_;
std::mutex lock_;
static void dispatchCallback(evutil_socket_t fd, short flags,
void *param);
void dispatchCall();
};
|
