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
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
|
/*
* Copyright (C) Igor Sysoev
* Copyright (C) NGINX, Inc.
*/
#include <nxt_main.h>
nxt_conn_io_t nxt_unix_conn_io = {
.connect = nxt_conn_io_connect,
.accept = nxt_conn_io_accept,
.read = nxt_conn_io_read,
.recvbuf = nxt_conn_io_recvbuf,
.recv = nxt_conn_io_recv,
.write = nxt_conn_io_write,
.sendbuf = nxt_conn_io_sendbuf,
#if (NXT_HAVE_LINUX_SENDFILE)
.old_sendbuf = nxt_linux_event_conn_io_sendfile,
#elif (NXT_HAVE_FREEBSD_SENDFILE)
.old_sendbuf = nxt_freebsd_event_conn_io_sendfile,
#elif (NXT_HAVE_MACOSX_SENDFILE)
.old_sendbuf = nxt_macosx_event_conn_io_sendfile,
#elif (NXT_HAVE_SOLARIS_SENDFILEV)
.old_sendbuf = nxt_solaris_event_conn_io_sendfilev,
#elif (NXT_HAVE_AIX_SEND_FILE)
.old_sendbuf = nxt_aix_event_conn_io_send_file,
#elif (NXT_HAVE_HPUX_SENDFILE)
.old_sendbuf = nxt_hpux_event_conn_io_sendfile,
#else
.old_sendbuf = nxt_event_conn_io_sendbuf,
#endif
.writev = nxt_event_conn_io_writev,
.send = nxt_event_conn_io_send,
};
nxt_conn_t *
nxt_conn_create(nxt_mp_t *mp, nxt_task_t *task)
{
nxt_conn_t *c;
nxt_thread_t *thr;
c = nxt_mp_zget(mp, sizeof(nxt_conn_t));
if (nxt_slow_path(c == NULL)) {
return NULL;
}
c->mem_pool = mp;
c->socket.fd = -1;
c->socket.log = &c->log;
c->log = *task->log;
/* The while loop skips possible uint32_t overflow. */
while (c->log.ident == 0) {
c->log.ident = nxt_task_next_ident();
}
thr = nxt_thread();
thr->engine->connections++;
c->task.thread = thr;
c->task.log = &c->log;
c->task.ident = c->log.ident;
c->socket.task = &c->task;
c->read_timer.task = &c->task;
c->write_timer.task = &c->task;
c->io = thr->engine->event.io;
c->max_chunk = NXT_INT32_T_MAX;
c->sendfile = NXT_CONN_SENDFILE_UNSET;
c->socket.read_work_queue = &thr->engine->fast_work_queue;
c->socket.write_work_queue = &thr->engine->fast_work_queue;
nxt_conn_timer_init(&c->read_timer, c, c->socket.read_work_queue);
nxt_conn_timer_init(&c->write_timer, c, c->socket.write_work_queue);
nxt_log_debug(&c->log, "connections: %uD", thr->engine->connections);
return c;
}
void
nxt_conn_free(nxt_task_t *task, nxt_conn_t *c)
{
nxt_mp_t *mp;
task->thread->engine->connections--;
mp = c->mem_pool;
nxt_mp_release(mp);
}
void
nxt_conn_timer(nxt_event_engine_t *engine, nxt_conn_t *c,
const nxt_conn_state_t *state, nxt_timer_t *timer)
{
nxt_msec_t value;
if (state->timer_value != NULL) {
value = state->timer_value(c, state->timer_data);
if (value != 0) {
timer->handler = state->timer_handler;
nxt_timer_add(engine, timer, value);
}
}
}
void
nxt_conn_work_queue_set(nxt_conn_t *c, nxt_work_queue_t *wq)
{
c->read_work_queue = wq;
c->write_work_queue = wq;
c->read_timer.work_queue = wq;
c->write_timer.work_queue = wq;
}
nxt_sockaddr_t *
nxt_conn_local_addr(nxt_task_t *task, nxt_conn_t *c)
{
int ret;
size_t size, length;
socklen_t socklen;
nxt_sockaddr_t *sa;
if (c->local != NULL) {
return c->local;
}
/* AF_UNIX should not get in here. */
switch (c->remote->u.sockaddr.sa_family) {
#if (NXT_INET6)
case AF_INET6:
socklen = sizeof(struct sockaddr_in6);
length = NXT_INET6_ADDR_STR_LEN;
size = offsetof(nxt_sockaddr_t, u) + socklen + length;
break;
#endif
case AF_INET:
default:
socklen = sizeof(struct sockaddr_in);
length = NXT_INET_ADDR_STR_LEN;
size = offsetof(nxt_sockaddr_t, u) + socklen + length;
break;
}
sa = nxt_mp_get(c->mem_pool, size);
if (nxt_slow_path(sa == NULL)) {
return NULL;
}
sa->socklen = socklen;
sa->length = length;
ret = getsockname(c->socket.fd, &sa->u.sockaddr, &socklen);
if (nxt_slow_path(ret != 0)) {
nxt_alert(task, "getsockname(%d) failed", c->socket.fd);
return NULL;
}
c->local = sa;
nxt_sockaddr_text(sa);
/*
* TODO: here we can adjust the end of non-freeable block
* in c->mem_pool to the end of actual sockaddr length.
*/
return sa;
}
|
