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
|
#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_errno.h>
#include <ngx_log.h>
#include <ngx_recv.h>
#include <ngx_connection.h>
ssize_t ngx_event_recv_core(ngx_connection_t *c, char *buf, size_t size)
{
int n;
ngx_err_t err;
ngx_event_t *ev;
ev = c->read;
if (ev->timedout) {
ngx_set_socket_errno(NGX_ETIMEDOUT);
ngx_log_error(NGX_LOG_ERR, c->log, NGX_ETIMEDOUT, "recv() failed");
return NGX_ERROR;
}
#if (HAVE_KQUEUE)
if (ngx_event_flags & NGX_HAVE_KQUEUE_EVENT) {
ngx_log_debug(c->log, "ngx_event_recv: eof:%d, avail:%d, err:%d" _
ev->eof _ ev->available _ ev->error);
}
#endif
#if (USE_KQUEUE)
if (ev->eof && ev->available == 0) {
if (ev->error) {
ngx_set_socket_errno(ev->error);
if (ev->error == NGX_ECONNRESET && ev->ignore_econnreset) {
return 0;
}
ngx_log_error(NGX_LOG_ERR, c->log, ev->error,
"recv() failed");
return NGX_ERROR;
}
return 0;
}
#elif (HAVE_KQUEUE)
if (ngx_event_flags & NGX_HAVE_KQUEUE_EVENT) {
if (ev->eof && ev->available == 0) {
if (ev->error) {
ngx_set_socket_errno(ev->error);
if (ev->error == NGX_ECONNRESET && ev->ignore_econnreset) {
return 0;
}
ngx_log_error(NGX_LOG_ERR, c->log, ev->error,
"recv() failed");
return NGX_ERROR;
}
return 0;
}
}
#endif
n = ngx_recv(c->fd, buf, size, 0);
if (n == -1) {
err = ngx_socket_errno;
if (ev->error == NGX_ECONNRESET && ev->ignore_econnreset) {
return 0;
}
if (err == NGX_EAGAIN) {
ngx_log_error(NGX_LOG_INFO, c->log, err, "recv() returns EAGAIN");
return NGX_AGAIN;
}
ngx_log_error(NGX_LOG_ERR, c->log, err, "recv() failed");
return NGX_ERROR;
}
#if (USE_KQUEUE)
ev->available -= n;
#elif (HAVE_KQUEUE)
if (ngx_event_flags & NGX_HAVE_KQUEUE_EVENT) {
ev->available -= n;
}
#endif
return n;
}
|
