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
90
91
92
93
94
95
96
97
98
99
|
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "uv.h"
#include "uv_link_t.h"
/* Declaration of `middle_methods` */
#include "middle.h"
typedef struct client_s client_t;
static uv_tcp_t server;
struct client_s {
uv_tcp_t tcp;
uv_link_source_t source;
uv_link_t middle;
uv_link_observer_t observer;
};
static void read_cb(uv_link_observer_t* observer,
ssize_t nread,
const uv_buf_t* buf) {
client_t* client;
client = observer->link.data;
if (nread < 0) {
fprintf(stderr, "error or close\n");
uv_link_read_stop(&observer->link);
uv_close((uv_handle_t*) &client->tcp, NULL);
free(client);
return;
}
fprintf(stderr, "read \"%.*s\"\n", (int) nread, buf->base);
}
static void connection_cb(uv_stream_t* s, int status) {
int err;
client_t* client;
client = malloc(sizeof(*client));
assert(client != NULL);
err = uv_tcp_init(uv_default_loop(), &client->tcp);
assert(err == 0);
err = uv_accept(s, (uv_stream_t*) &client->tcp);
assert(err == 0);
err = uv_link_source_init(&client->source, (uv_stream_t*) &client->tcp);
assert(err == 0);
err = uv_link_init(&client->middle, &middle_methods);
assert(err == 0);
err = uv_link_chain(&client->source.link, &client->middle);
assert(err == 0);
err = uv_link_observer_init(&client->observer, &client->middle);
assert(err == 0);
client->observer.read_cb = read_cb;
client->observer.link.data = client;
err = uv_link_read_start(&client->observer.link);
assert(err == 0);
}
int main() {
static const int kBacklog = 128;
int err;
uv_loop_t* loop;
struct sockaddr_in addr;
loop = uv_default_loop();
err = uv_tcp_init(loop, &server);
assert(err == 0);
err = uv_ip4_addr("0.0.0.0", 9000, &addr);
assert(err == 0);
err = uv_tcp_bind(&server, (struct sockaddr*) &addr, 0);
assert(err == 0);
err = uv_listen((uv_stream_t*) &server, kBacklog, connection_cb);
err = uv_run(loop, UV_RUN_DEFAULT);
assert(err == 0);
return 0;
}
|