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
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
#ifndef _SALTICIDAE_EVENT_H
#define _SALTICIDAE_EVENT_H
namespace salticidae {
struct _event_context_deleter {
constexpr _event_context_deleter() = default;
void operator()(struct event_base *ptr) {
event_base_free(ptr);
}
};
using _event_context_ot = RcObj<struct event_base, _event_context_deleter>;
class EventContext: public _event_context_ot {
public:
EventContext(): _event_context_ot(event_base_new()) {}
EventContext(const EventContext &) = default;
EventContext(EventContext &&) = default;
EventContext &operator=(const EventContext &) = default;
EventContext &operator=(EventContext &&) = default;
void dispatch() { event_base_dispatch(get()); }
};
class Event {
public:
using callback_t = std::function<void(evutil_socket_t fd, short events)>;
private:
EventContext eb;
evutil_socket_t fd;
short events;
struct event *ev;
callback_t callback;
static inline void _then(evutil_socket_t fd, short events, void *arg) {
(static_cast<Event *>(arg))->callback(fd, events);
}
public:
Event(): ev(nullptr) {}
Event(const EventContext &eb,
evutil_socket_t fd,
short events,
callback_t callback):
eb(eb), fd(fd), events(events),
ev(event_new(eb.get(), fd, events, Event::_then, this)),
callback(callback) {}
Event(Event &&other):
eb(std::move(other.eb)), fd(other.fd), events(other.events),
callback(std::move(other.callback)) {
other.clear();
ev = event_new(eb.get(), fd, events, Event::_then, this);
}
Event &operator=(Event &&other) {
clear();
other.clear();
eb = std::move(other.eb);
fd = other.fd;
events = other.events;
ev = event_new(eb.get(), fd, events, Event::_then, this);
callback = std::move(other.callback);
return *this;
}
~Event() { clear(); }
void clear() {
if (ev != nullptr)
{
event_del(ev);
event_free(ev);
ev = nullptr;
}
}
void add() { event_add(ev, nullptr); }
void del() { event_del(ev); }
void add_with_timeout(double timeout) {
event_add_with_timeout(ev, timeout);
}
operator bool() const { return ev != nullptr; }
};
}
#endif
|