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
|
#include <stdlib.h>
#include <sys/epoll.h>
#include "evloop.h"
#include "util.h"
#include "constant.h"
#include "tpool.h"
struct evloop {
int epollfd;
struct epoll_event events[EVENT_LOOP_MAX_EVENTS];
int size;
};
evloop_t *evloop_create()
{
int epollfd = epoll_create1(0);
if (epollfd == -1)
return NULL;
evloop_t *eventLoop = malloc(sizeof(*eventLoop));
eventLoop->epollfd = epollfd;
eventLoop->size = EVENT_LOOP_MAX_EVENTS;
return eventLoop;
}
int evloop_wait(evloop_t *el, int timeout)
{
return epoll_wait(el->epollfd, el->events, el->size, timeout);
}
int evloop_add(evloop_t *el, event_t *ev, int flag)
{
struct epoll_event epev;
epev.events = flag;
epev.data.ptr = ev;
return epoll_ctl(el->epollfd, EPOLL_CTL_ADD, ev->fd, &epev);
}
event_t *evloop_get(evloop_t *el, int index)
{
return (event_t *)el->events[index].data.ptr;
}
void evloop_loop(evloop_t *el)
{
int nevents;
event_t *ev;
for (;;) {
nevents = evloop_wait(el, -1);
if (nevents == -1)
panic("eventloop wait");
for (int i = 0; i < nevents; i++) {
ev = evloop_get(el, i);
// TODO: detect if there is any issue of the handle function
// and delete the event when issues happen
tpool_add_work(tpool, ev->process, ev->data);
}
}
}
int evloop_remove(evloop_t *el, event_t *ev)
{
if (epoll_ctl(el->epollfd, EPOLL_CTL_DEL, ev->fd, NULL) == -1)
return ERROR;
if (ev->destroy)
ev->destroy(ev->data);
free(ev);
return OK;
}
event_t *event_create(void *data, int fd,
evloop_process_func_t process,
evloop_destroy_func_t destroy)
{
event_t *ev = malloc(sizeof(*ev));
ev->data = data;
ev->process = process;
ev->fd = fd;
ev->destroy = destroy;
return ev;
}
|
