Mercurial > hg > nginx
comparison src/imap/ngx_imap_proxy.c @ 418:cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Wed, 08 Sep 2004 05:18:51 +0000 |
parents | |
children | 47709bff4468 |
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417:0526206251f6 | 418:cf072d26d6d6 |
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1 | |
2 #include <ngx_config.h> | |
3 #include <ngx_core.h> | |
4 #include <ngx_event.h> | |
5 #include <ngx_imap.h> | |
6 | |
7 | |
8 static void ngx_imap_proxy_close_session(ngx_imap_session_t *s); | |
9 | |
10 | |
11 void ngx_imap_proxy_handler(ngx_event_t *ev) | |
12 { | |
13 ssize_t n; | |
14 ngx_buf_t *b; | |
15 ngx_uint_t data, do_write; | |
16 ngx_connection_t *c, *src, *dst; | |
17 ngx_imap_session_t *s; | |
18 | |
19 c = ev->data; | |
20 s = c->data; | |
21 | |
22 if (c == s->connection) { | |
23 src = c; | |
24 dst = s->proxy->connection; | |
25 b = s->proxy->downstream_buffer; | |
26 | |
27 } else { | |
28 src = s->proxy->connection; | |
29 dst = c; | |
30 b = s->proxy->upstream_buffer; | |
31 } | |
32 | |
33 do_write = ev->write ? 1 : 0; | |
34 | |
35 do { | |
36 data = 0; | |
37 | |
38 if (do_write == 1) { | |
39 if (dst->write->ready && b->pos < b->last) { | |
40 n = ngx_send(dst, b->pos, b->last - b->pos); | |
41 | |
42 if (n == NGX_ERROR) { | |
43 ngx_imap_proxy_close_session(s); | |
44 return; | |
45 } | |
46 | |
47 if (n > 0) { | |
48 data = 1; | |
49 b->pos += n; | |
50 | |
51 if (b->pos == b->last) { | |
52 b->pos = b->start; | |
53 b->last = b->start; | |
54 } | |
55 } | |
56 } | |
57 } | |
58 | |
59 if (src->read->ready && b->last < b->end) { | |
60 n = ngx_recv(src, b->last, b->end - b->last); | |
61 | |
62 if (n == NGX_ERROR || n == 0) { | |
63 ngx_imap_proxy_close_session(s); | |
64 return; | |
65 } | |
66 | |
67 if (n > 0) { | |
68 data = 1; | |
69 do_write = 1; | |
70 b->last += n; | |
71 } | |
72 } | |
73 | |
74 } while (data); | |
75 } | |
76 | |
77 | |
78 static void ngx_imap_proxy_close_session(ngx_imap_session_t *s) | |
79 { | |
80 } |